Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of ~~July 25,~~November 5, 2019, the registrant had ~~57,844,302~~68,272,550 shares of common stock outstanding. The shares of common stock trade on the New York Stock Exchange under the ticker symbol “WMS.” In addition, as of ~~July 25,~~November 5, 2019, ~~304,099~~303,257 shares of unvested restricted common stock were outstanding and ~~22,383,938~~22,382,004 shares of ESOP, preferred stock, convertible into ~~17,217,725~~17,216,237 shares of common stock, were outstanding. As of ~~July 25,~~November 5, 2019, ~~75,366,126~~85,792,044 shares of common stock were outstanding, inclusive of outstanding shares of unvested restricted common stock and on an as-converted basis with respect to the outstanding shares of ESOP preferred stock.

	June 30, 2019				March 31, 2019			September 30, 2019			March 31, 2019
ASSETS
Current assets:
Cash	$	9,357			$	8,891		$	54,207		$	8,891
Receivables (less allowance for doubtful accounts of $5,704 and $7,653, respectively)		231,829				186,991
Receivables (less allowance for doubtful accounts of $5,939 and $7,653, respectively)									250,470			186,991
Inventories		230,284				264,540			248,914			264,540
Other current assets		9,185				6,091			10,629			6,091
Total current assets		480,655				466,513			564,220			466,513
Property, plant and equipment, net		396,280				398,891			492,017			398,891
Other assets:
Goodwill		102,844				102,638			669,753			102,638
Intangible assets, net		35,733				37,177			501,572			37,177
Other assets		52,903		��		36,940			67,758			36,940
Total assets	$	1,068,415			$	1,042,159		$	2,295,320		$	1,042,159
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current maturities of debt obligations	$	25,939			$	25,932		$	6,195		$	25,932
Current maturities of finance lease obligations		22,695				23,117			22,555			23,117
Accounts payable		106,413				93,577			111,450			93,577
Other accrued liabilities		76,267				61,901			97,979			61,901
Accrued income taxes		12,669				1,758			3,169			1,758
Total current liabilities		243,983				206,285			241,348			206,285
Long-term debt obligations (less unamortized debt issuance costs of $2,119 and $2,293, respectively)		230,337				208,602
Long-term debt obligations (less unamortized debt issuance costs of $2,614 and $2,293, respectively)									1,043,154			208,602
Long-term finance lease obligations		56,368				61,555			52,746			61,555
Deferred tax liabilities		48,745				45,963			158,079			45,963
Other liabilities		28,641				19,119			37,017			19,119
Total liabilities		608,074				541,524			1,532,344			541,524
Commitments and contingencies (see Note 11)
Commitments and contingencies (see Note 12)
Mezzanine equity:
Redeemable convertible preferred stock: $0.01 par value; 47,070 shares authorized; 44,170 shares issued; 22,385 and 22,611 shares outstanding, respectively		279,816				282,638
Redeemable convertible preferred stock: $0.01 par value; 47,070 shares authorized; 44,170 shares issued; 22,383 and 22,611 shares outstanding, respectively									279,785			282,638
Deferred compensation – unearned ESOP shares		(31,659	)			(180,316	)		(28,565	)		(180,316	)
Total mezzanine equity		248,157				102,322			251,220			102,322
Stockholders’ equity:
Common stock; $0.01 par value: 1,000,000 shares authorized; 58,283 and 57,964 shares issued, respectively; 57,779 and 57,490 shares outstanding, respectively		11,439				11,436
Common stock; $0.01 par value: 1,000,000 shares authorized; 68,746 and 57,964 shares issued, respectively; 68,262 and 57,490 shares outstanding, respectively									11,545			11,436
Paid-in capital		501,046				391,039			800,947			391,039
Common stock in treasury, at cost		(10,162	)			(9,863	)		(10,162	)		(9,863	)
Accumulated other comprehensive loss		(24,470	)			(25,867	)		(26,427	)		(25,867	)
Retained (deficit) earnings		(278,727	)			17,582			(277,725	)		17,582
Total ADS stockholders’ equity		199,126				384,327			498,178			384,327
Noncontrolling interest in subsidiaries		13,058				13,986			13,578			13,986
Total stockholders’ equity		212,184				398,313			511,756			398,313
Total liabilities, mezzanine equity and stockholders’ equity	$	1,068,415			$	1,042,159		$	2,295,320		$	1,042,159

	Three Months Ended June 30,						Three Months Ended September 30,					Six Months Ended September 30,
	2019			2018			2019			2018		2019			2018
Net sales	$	413,708		$	387,847		$	495,905		$	406,555	$	909,613		$	794,402
Cost of goods sold		307,256			288,156			349,381			311,182		656,637			599,338
Cost of goods sold - ESOP special dividend compensation		168,610			—			—			—		168,610			—
Gross profit		(62,158	)		99,691			146,524			95,373		84,366			195,064
Operating expenses:
Selling		26,365			24,165			29,971			24,731		56,336			48,896
General and administrative		31,433			21,382			48,030			21,584		79,463			42,966
Selling, general and administrative - ESOP special dividend compensation		78,142			—			—			—		78,142			—
Loss on disposal of assets and costs from exit and disposal activities		707			1,104			2,004			324		2,711			1,428
Intangible amortization		1,542			1,984			9,300			1,985		10,842			3,969
(Loss) income from operations		(200,347	)		51,056
Income (loss) from operations								57,219			46,749		(143,128	)		97,805
Other expense:
Interest expense		5,264			3,802			52,332			4,531		57,596			8,333
Derivative gains and other income, net		(96	)		(814	)
(Loss) income before income taxes		(205,515	)		48,068
Income tax expense		22,370			14,284
Derivative loss (gains) and other expense (income), net								175			94		79			(720	)
Income (loss) before income taxes								4,712			42,124		(200,803	)		90,192
Income tax (benefit) expense								(3,547	)		12,194		18,823			26,478
Equity in net (income) loss of unconsolidated affiliates		(434	)		133			(203	)		558		(637	)		691
Net (loss) income		(227,451	)		33,651
Less: net (loss) income attributable to noncontrolling interest		(1,095	)		1,371
Net (loss) income attributable to ADS		(226,356	)		32,280
Net income (loss)								8,462			29,372		(218,989	)		63,023
Less: net income (loss) attributable to noncontrolling interest								873			702		(222	)		2,073
Net income (loss) attributable to ADS								7,589			28,670		(218,767	)		60,950
Weighted average common shares outstanding:
Basic		57,576			56,594			60,222			56,929		58,906			56,776
Diluted		57,576			57,158			60,876			57,558		58,906			57,374
Net (loss) income per share:
Net income (loss) per share:
Basic	$	(4.06	)	$	0.51		$	0.10		$	0.45	$	(3.86	)	$	0.97
Diluted	$	(4.06	)	$	0.51		$	0.10		$	0.45	$	(3.86	)	$	0.96

	Three Months Ended June 30,						Six Months Ended September 30,
	2019			2018			2019			2018
Cash Flows from Operating Activities
Net (loss) income	$	(227,451	)	$	33,651		$	(218,989	)	$	63,023
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization		16,694			17,827			43,260			35,363
Deferred income taxes		2,191			1,729			1,127			3,221
Loss on disposal of assets and costs from exit and disposal activities		707			1,104			2,711			1,428
ESOP and stock-based compensation		7,425			5,580			16,082			11,760
ESOP special dividend compensation		246,752			—			246,752			—
Amortization of deferred financing charges		174			191			34,285			387
Inventory step up related to Infiltrator Water Technologies acquisition								5,773			—
Fair market value adjustments to derivatives		1,789			(625	)		996			(901	)
Equity in net (income) loss of unconsolidated affiliates		(434	)		133			(637	)		691
Other operating activities		(2,880	)		(1,030	)		(3,635	)		(1,342	)
Changes in working capital:
Receivables		(44,494	)		(54,910	)		(44,883	)		(64,649	)
Inventories		34,803			1,040			57,316			16,378
Prepaid expenses and other current assets		(3,089	)		(3,665	)		(2,917	)		(2,116	)
Accounts payable, accrued expenses, and other liabilities		30,653			8,806			34,470			(5,082	)
Net cash provided by operating activities		62,840			9,831			171,711			58,161
Cash Flows from Investing Activities
Capital expenditures		(9,723	)		(6,874	)		(25,622	)		(19,299	)
Acquisition of Infiltrator Water Technologies, net of cash acquired								(1,088,617	)		—
Other investing activities		(13	)		(109	)		(116	)		429
Net cash used in investing activities		(9,736	)		(6,983	)		(1,114,355	)		(18,870	)
Cash Flows from Financing Activities
Proceeds from Revolving Credit Facility		137,400			101,400
Payments on Revolving Credit Facility		(115,600	)		(93,700	)
Payments of notes, mortgages and other debt		—			(230	)
Proceeds from Term Loan Facility								1,300,000			—
Payments on Term Loan Facility								(1,300,000	)		—
Proceeds from syndication of Term Loan Facility								700,000			—
Proceeds from Senior Notes								350,000			—
Proceeds from Revolving Credit Agreement								177,900			—
Payments on Revolving Credit Agreement								(177,900	)		—
Debt issuance costs								(34,606	)		—
Proceeds from PNC Credit Agreement								253,900			250,100
Payments on PNC Credit Agreement								(388,300	)		(243,400	)
Payments on Prudential Senior Notes								(100,000	)		(25,000	)
Payments on finance lease obligations		(6,047	)		(5,885	)		(12,375	)		(11,619	)
Proceeds from common stock offering, net of offering costs								293,648			—
Cash dividends paid		(69,641	)		(6,141	)		(76,324	)		(11,618	)
Proceeds from exercise of stock options		1,513			3,215			2,430			3,473
Other financing activities		(258	)		(257	)		(236	)		(1,026	)
Net cash used in financing activities		(52,633	)		(1,598	)
Net cash provided by (used in) financing activities								988,137			(39,090	)
Effect of exchange rate changes on cash		(5	)		(443	)		(177	)		(176	)
Net change in cash		466			807			45,316			25
Cash at beginning of period		8,891			17,587			8,891			17,587
Cash at end of period	$	9,357		$	18,394		$	54,207		$	17,612
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for income taxes	$	535		$	952		$	7,199		$	18,331
Cash paid for interest		3,920			4,000			17,771			8,032
Non-cash operating, investing and financing activities:
Acquisition of property, plant and equipment under finance lease and incurred lease obligations		296			3,171
Balance in accounts payable for the acquisition of property, plant and equipment		4,364			1,851			3,669			3,152

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY AND MEZZANINE EQUITY

	Common Stock				Paid -In		Common Stock in Treasury					Accumulated Other Compre-hensive			Retained (Deficit)			Total ADS Stockholders’			Non- controlling Interest in			Total Stock- holders’			Redeemable Convertible Preferred Stock						Deferred Compensation Unearned ESOP Shares						Redeemable Non-controlling Interest in			Total Mezzanine			Common Stock				Paid -In		Common Stock in Treasury					Accumulated Other Compre-hensive			Retained (Deficit)			Total ADS Stockholders’			Non- controlling Interest in			Total Stock- holders’			Redeemable Convertible Preferred Stock						Deferred Compensation Unearned ESOP Shares						Redeemable Non-controlling Interest in			Total Mezzanine
	Shares		Amount		Capital		Shares		Amount			Loss			Earnings			Equity			Subsidiaries			Equity			Shares			Amount			Shares			Amount			Subsidiaries			Equity			Shares		Amount		Capital		Shares		Amount			Loss			Earnings			Equity			Subsidiaries			Equity			Shares			Amount			Shares			Amount			Subsidiaries			Equity
Balance at July 1, 2018																																														57,366	$	11,431	$	375,215		441	$	(9,033	)	$	(24,684	)	$	(11,976	)	$	340,953		$	15,586		$	356,539			22,987		$	287,337			15,027		$	(187,772	)	$	8,474		$	108,039
Net income																																														—		—		—		—		—			—			28,670			28,670			208			28,878			—			—			—			—			494			494
Other comprehensive income																																														—		—		—		—		—			1,841			—			1,841			996			2,837			—			—			—			—			—			—
Redeemable convertible preferred stock dividends																																														—		—		—		—		—			—			(478	)		(478	)		—			(478	)		—			—			—			—			—			—
Common stock dividends ($0.08 per share)																																														—		—		—		—		—			—			(4,585	)		(4,585	)		—			(4,585	)		—			—			—			—			—			—
Allocation of ESOP shares to participants for compensation																																														—		—		1,972		—		—			—			—			1,972			—			1,972			—			—			(191	)		2,396			—			2,396
Exercise of common stock options																																														25		—		258		—		—			—			—			258			—			258			—			—			—			—			—			—
Restricted stock awards																																														—		—		—		—		(2	)		—			—			(2	)		—			(2	)		—			—			—			—			—			—
Stock-based compensation expense																																														—		—		1,812		—		—			—			—			1,812			—			1,812			—			—			—			—			—			—
ESOP distribution in common stock																																														134		2		2,218		—		—			—			—			2,220			—			2,220			(177	)		(2,220	)		—			—			—			(2,220	)
Balance at September 30, 2018																																														57,525	$	11,433	$	381,475		441	$	(9,035	)	$	(22,843	)	$	11,631		$	372,661		$	16,790		$	389,451			22,810		$	285,117			14,836		$	(185,376	)	$	8,968		$	108,709
Balance at April 1, 2018		56,889	$	11,426	$	364,908		413	$	(8,277	)	$	(21,247	)	$	(39,214	)	$	307,596		$	16,663		$	324,259			23,300		$	291,247			15,219		$	(190,168	)	$	8,471		$	109,550			56,889	$	11,426	$	364,908		413	$	(8,277	)	$	(21,247	)	$	(39,214	)	$	307,596		$	16,663		$	324,259			23,300		$	291,247			15,219		$	(190,168	)	$	8,471		$	109,550
Net income		—		—		—		—		—			—			32,280			32,280			1,033			33,313			—			—			—			—			338			338			—		—		—		—		—			—			60,950			60,950			1,241			62,191			—			—			—			—			832			832
Other comprehensive income		—		—		—		—		—			(3,437	)		—			(3,437	)		(1,375	)		(4,812	)		—			—			—			—			—			—			—		—		—		—		—			(1,596	)		—			(1,596	)		(379	)		(1,975	)		—			—			—			—			—			—
Redeemable convertible preferred stock dividends		—		—		—		—		—			—			(497	)		(497	)		—			(497	)		—			—			—			—			—			—			—		—		—		—		—			—			(975	)		(975	)		—			(975	)		—			—			—			—			—			—
Common stock dividends ($0.08 per share)		—		—		—		—		—			—			(4,545	)		(4,545	)		—			(4,545	)		—			—			—			—			—			—
Common stock dividends ($0.16 per share)																																														—		—		—		—		—			—			(9,130	)		(9,130	)		—			(9,130	)		—			—			—			—			—			—
Dividend paid to non-controlling interest holder		—		—		—		—		—			—			—			—			(735	)		(735	)		—			—			—			—			(335	)		(335	)		—		—		—		—		—			—			—			—			(735	)		(735	)		—			—			—			—			(335	)		(335	)
Allocation of ESOP shares to participants for compensation		—		—		1,625		—		—			—			—			1,625			—			1,625			—			—			(192	)		2,396			—			2,396			—		—		3,597		—		—			—			—			3,597			—			3,597			—			—			(383	)		4,792			—			4,792
Exercise of common stock options		217		2		3,215		26		(704	)		—			—			2,513			—			2,513			—			—			—			—			—			—			242		2		3,473		26		(704	)		—			—			2,771			—			2,771			—			—			—			—			—			—
Restricted stock awards		19		1		786		2		(52	)		—			—			735			—			735			—			—			—			—			—			—			19		1		—		2		(54	)		—			—			(53	)		—			(53	)		—			—			—			—			—			—
Stock-based compensation expense		—		—		773		—		—			—			—			773			—			773			—			—			—			—			—			—			—		—		3,371		—		—			—			—			3,371			—			3,371			—			—			—			—			—			—
ESOP distribution in common stock		241		2		3,908		—		—			—			—			3,910			—			3,910			(313	)		(3,910	)		—			—			—			(3,910	)		375		4		6,126		—		—			—			—			6,130			—			6,130			(490	)		(6,130	)		—			—			—			(6,130	)
Balance at June 30, 2018		57,366	$	11,431	$	375,215		441	$	(9,033	)	$	(24,684	)	$	(11,976	)	$	340,953		$	15,586		$	356,539			22,987		$	287,337			15,027		$	(187,772	)	$	8,474		$	108,039
Balance at April 1, 2019		57,964	$	11,436	$	391,039		474	$	(9,863	)	$	(25,867	)	$	17,582		$	384,327		$	13,986		$	398,313			22,611		$	282,638			14,452		$	(180,316	)	$	—		$	102,322
Net loss		—		—		—		—		—			—			(226,356	)		(226,356	)		(1,095	)		(227,451	)		—			—			—			—			—			—
Other comprehensive loss		—		—		—		—		—			1,397			—			1,397			167			1,564			—			—			—			—			—			—
Redeemable convertible preferred stock dividends		—		—		—		—		—			—			(6,846	)		(6,846	)		—			(6,846	)		—			—			—			—			—			—
Common stock dividends ($1.09 per share)		—		—		—		—		—			—			(63,107	)		(63,107	)		—			(63,107	)		—			—			—			—			—			—
Allocation of ESOP shares to participants for compensation		—		—		2,490		—		—			—			—			2,490			—			2,490			—			—			(248	)		3,094			—			3,094
ESOP special dividend compensation		—		—		101,189		—		—			—			—			101,189			—			101,189			—			—			(11,645	)		145,563			—			145,563
Exercise of common stock options		114		1		1,667		7		(207	)		—			—			1,461			—			1,461			—			—			—			—			—			—
Restricted stock awards		31		—		—		3		(92	)		—			—			(92	)		—			(92	)		—			—			—			—			—			—
Stock-based compensation expense		—		—		1,841		—		—			—			—			1,841			—			1,841			—			—			—			—			—			—
ESOP distribution in common stock		174		2		2,820		—		—			—			—			2,822			—			2,822			(226	)		(2,822	)		—			—			—			(2,822	)
Balance at June 30, 2019		58,283	$	11,439	$	501,046		484	$	(10,162	)	$	(24,470	)	$	(278,727	)	$	199,126		$	13,058		$	212,184			22,385		$	279,816			2,559		$	(31,659	)	$	—		$	248,157
Balance at September 30, 2018																																														57,525	$	11,433	$	381,475		441	$	(9,035	)	$	(22,843	)	$	11,631		$	372,661		$	16,790		$	389,451			22,810		$	285,117			14,836		$	(185,376	)	$	8,968		$	108,709

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY AND MEZZANINE EQUITY (CONTINUED)

	Common Stock				Paid -In		Common Stock in Treasury					Accumulated Other Compre-hensive			Retained (Deficit)			Total ADS Stockholders’			Non- controlling Interest in			Total Stock- holders’			Redeemable Convertible Preferred Stock						Deferred Compensation Unearned ESOP Shares						Total Mezzanine
	Shares		Amount		Capital		Shares		Amount			Loss			Earnings			Equity			Subsidiaries			Equity			Shares			Amount			Shares			Amount			Equity
Balance at July 1, 2019		58,283	$	11,439	$	501,046		484	$	(10,162	)	$	(24,470	)	$	(278,727	)	$	199,126		$	13,058		$	212,184			22,385		$	279,816			2,559		$	(31,659	)	$	248,157
Net income		—		—		—		—		—			—			7,589			7,589			873			8,462			—			—			—			—			—
Other comprehensive income		—		—		—		—		—			(1,957	)		—			(1,957	)		(353	)		(2,310	)		—			—			—			—			—
Redeemable convertible preferred stock dividends		—		—		—		—		—			—			(1,349	)		(1,349	)		—			(1,349	)		—			—			—			—			—
Common stock dividends ($0.09 per share)		—		—		—		—		—			—			(5,238	)		(5,238	)		—			(5,238	)		—			—			—			—			—
Allocation of ESOP shares to participants for compensation		—		—		2,392		—		—			—			—			2,392			—			2,392			—			—			(247	)		3,094			3,094
Exercise of common stock options		54		1		763		—		—			—			—			764			—			764			—			—			—			—			—
Restricted stock awards		57		1		—		—		—			—			—			1			—			1			—			—			—			—			—
Stock-based compensation expense		—		—		3,171		—		—			—			—			3,171			—			3,171			—			—			—			—			—
ESOP distribution in common stock		2		—		31		—		—			—			—			31			—			31			(2	)		(31	)		—			—			(31	)
Common Stock Offering		10,350		104		293,544		—		—			—			—			293,648			—			293,648			—			—			—			—			—
Balance at September 30, 2019		68,746		11,545		800,947		484		(10,162	)		(26,427	)		(277,725	)		498,178			13,578			511,756			22,383		$	279,785			2,312		$	(28,565	)	$	251,220
Balance at April 1, 2019		57,964	$	11,436	$	391,039		474	$	(9,863	)	$	(25,867	)	$	17,582		$	384,327		$	13,986		$	398,313			22,611		$	282,638			14,452		$	(180,316	)	$	102,322
Net loss		—		—		—		—		—			—			(218,767	)		(218,767	)		(222	)		(218,989	)		—			—			—			—			—
Other comprehensive loss		—		—		—		—		—			(560	)		—			(560	)		(186	)		(746	)		—			—			—			—			—
Redeemable convertible preferred stock dividends		—		—		—		—		—			—			(8,195	)		(8,195	)		—			(8,195	)		—			—			—			—			—
Common stock dividends ($1.18 per share)		—		—		—		—		—			—			(68,345	)		(68,345	)		—			(68,345	)		—			—			—			—			—
Allocation of ESOP shares to participants for compensation		—		—		4,882		—		—			—			—			4,882			—			4,882			—			—			(495	)		6,188			6,188
ESOP special dividend compensation		—		—		101,189		—		—			—			—			101,189			—			101,189			—			—			(11,645	)		145,563			145,563
Exercise of common stock options		168		2		2,430		7		(207	)		—			—			2,225			—			2,225			—			—			—			—			—
Restricted stock awards		88		1		—		3		(92	)		—			—			(91	)		—			(91	)		—			—			—			—			—
Stock-based compensation expense		—		—		5,012		—		—			—			—			5,012			—			5,012			—			—			—			—			—
ESOP distribution in common stock		176		2		2,851		—		—			—			—			2,853			—			2,853			(228	)		(2,853	)		—			—			(2,853	)
Common Stock Offering		10,350		104		293,544		—		—			—			—			293,648			—			293,648			—			—			—			—			—
Balance at September 30, 2019		68,746		11,545		800,947		484		(10,162	)		(26,427	)		(277,725	)		498,178			13,578			511,756			22,383		$	279,785			2,312		$	(28,565	)	$	251,220

Description of Business - Advanced Drainage Systems, Inc. and subsidiaries (collectively referred to as “ADS” or the “Company”), incorporated in Delaware, designs, manufactures and markets high performance thermoplastic corrugated pipe and related water management products, primarily in North and South America and Europe. ADS’s broad product line includes corrugated high density polyethylene (or “HDPE”) pipe, polypropylene (or “PP”) pipe and related water management products.

On July 31, 2019, the Company completed its acquisition (the “Acquisition”) of Infiltrator Water Technologies Ultimate Holdings, Inc. (“Infiltrator Water Technologies”). Infiltrator Water Technologies is a leading national provider of plastic leach field chambers and systems, septic tanks and accessories, primarily for use in residential applications. Infiltrator Water Technologies’ products are used in on-site septic wastewater treatment systems in the United States and Canada. Infiltrator Water Technologies manufactures and sells StormTech and ARC Septic Chambers to certain entities affiliated with ADS. See “Note 3. Acquisitions” for additional information on the Acquisition.

The Company is managed ~~based primarily on the geographies in which it operates~~ and reports results of operations in ~~two~~3 reportable segments: ~~Domestic~~Pipe, Infiltrator Water Technologies and International. The Company also reports its Allied Products and all other business segments as Allied Products and Other.

Historically, sales of the Company’s products have been higher in the first and second quarters of each fiscal year due to favorable weather and longer daylight conditions accelerating construction activity during these periods. Seasonal variations in operating results may also be impacted by inclement weather conditions, such as cold or wet weather, which can delay projects.

Basis of Presentation - The Company prepares its Condensed Consolidated Financial Statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The Condensed Consolidated Balance Sheet as of March 31, 2019 was derived from audited financial statements included in the Annual Report on Form 10-K for the year ended March 31, 2019 (“Fiscal 2019 Form 10-K”). The accompanying unaudited Condensed Consolidated Financial Statements contain all adjustments, of a normal recurring nature, necessary to present fairly its financial position as of ~~June~~September 30, 2019 and the results of operations and cash flows for the three and six months ended ~~June~~September 30, 2019. The interim Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements, including the notes thereto, filed in the Company’s Fiscal 2019 Form 10-K.

Principles of Consolidation - The Condensed Consolidated Financial Statements include the Company, its wholly-owned subsidiaries, its majority-owned subsidiaries and variable interest entities (“VIEs”) of which the Company is the primary beneficiary. The Company uses the equity method of accounting for equity investments where it exercises significant influence but does not hold a controlling financial interest. Such investments are recorded in Other assets in the Condensed Consolidated Balance Sheets and the related equity earnings from these investments are included in Equity in net loss of unconsolidated affiliates in the Condensed Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation.

~~Acquisition of Infiltrator Water Technologies~~ - On July 31, 2019, the Company completed its acquisition (the “Acquisition”) of Infiltrator Water Technologies Ultimate Holdings, Inc. (“IWT” or “Infiltrator”). IWT manufactures and sells wastewater systems for homes and provides drainage chambers for septic and storm water management. The Acquisition will combine the Company's industry leading position in stormwater management with IWT's leading platform in onsite septic waste management. See “Note 15. Subsequent Events” for additional information on the Acquisition.

Leases - In February 2016, the Financial Accounting Standards Board (the “FASB”) issued an accounting standard update (“ASU”) which amends the guidance for leases (“ASC 842”). This standard contains principles that will require an entity to recognize most leases on the balance sheet by recording a right-of-use asset and a lease liability, unless the lease is a short-term lease that has an accounting lease term of twelve

months or less. The standard also contains other changes to the current lease guidance that may result in changes to how entities determine which contractual arrangements qualify as a lease, the accounting for

executory costs, such as property taxes and insurance, as well as which lease origination costs will be capitalizable. In July 2018, the FASB amended ASC 842 to provide another transition method, allowing a cumulative effect adjustment to the opening balance of retained earnings during the period of adoption. The Company adopted these standards effective April 1, 2019 using the transition method in the July 2018 ASU which does not require adjustments to comparative periods or require modified disclosures for those periods and includes transition relief practical expedients. “Note 4.5. Leases” for further information on the adoption of the new lease ASUs.

Hedge Accounting - In August 2017, the FASB issued an ASU which expanded an entity’s ability to apply hedge accounting for non-financial and financial risk components and provided a simplified approach for fair value hedging of interest rate risk. The standard also refined how entities assess hedge effectiveness. The Company adopted this standard effective April 1, 2019. The new standard did not have an impact on the Condensed Consolidated Financial Statements.

Measurement of Credit Losses - In June 2016, the FASB issued an ASU which provides amended guidance on the measurement of credit losses on financial instruments, including trade receivables. This standard requires the use of an impairment model referred to as the current expected credit loss model. This standard is effective for fiscal years beginning after December 15, 2019, including interim periods within those years, and early adoption is permitted for fiscal years beginning after December 15, 2018. The Company expects to adopt this standard effective April 1, 2020. The Company is currently evaluating the impact of this standard on the Condensed Consolidated Financial Statements.

Except for the pronouncements described above, there have been no new accounting pronouncements issued or adopted since the filing of the Fiscal 2019 Form 10-K that have significance, or potential significance, to the Condensed Consolidated Financial Statements.

In fiscal 2018, the Company initiated restructuring activities (the “2018 Restructuring Plan”), which concluded during fiscal 2019. The following table summarizes the activity included in Loss on disposal of assets and costs from exit and disposal activities recorded during the three and six months ended ~~June~~September 30, 2019 and 2018:

	Three Months Ended June 30,					Three Months Ended September 30,					Six Months Ended September 30,
	2019		2018			2019		2018			2019		2018
	(In thousands)					(In thousands)					(In thousands)
Accelerated depreciation						$	—	$	430		$	—	$	430
Plant severance	$	—	$	(35	)		—		118			—		83
Product optimization							—		303			—		303
Other restructuring activities		—		31			—		171			—		202
Total 2018 Restructuring Plan activities	$	—	$	(4	)	$	—	$	1,022		$	—	$	1,018
Loss on other disposals and partial disposals of property, plant and equipment		707		1,108
Loss (gain) on other disposals and partial disposals of property, plant and equipment							444		(698	)		1,151		410
Acquisition related severance costs							1,560		—			1,560		—
Total loss on disposal of assets and costs from exit and disposal activities	$	707	$	1,104		$	2,004	$	324		$	2,711	$	1,428

~~All~~Approximately $0.7 million of the Total 2018 Restructuring Plan activities related to the ~~Domestic~~Pipe reporting segment for the three and six months ended ~~June~~September 30, ~~2018.~~2018, respectively. There was $0.3 million of the

Total 2018 Restructuring Plan activities related to the International reporting segment for the three and six months ended September 30, 2018.

A reconciliation of the beginning and ending amounts of restructuring liability related to the 2018 Restructuring Plan at ~~June~~September 30, 2019 and 2018 is as follows:

	Three Months Ended June 30,						Six Months Ended September 30,
	2019			2018			2019			2018
	(In thousands)						(In thousands)
Balance at the beginning of the period	$	1,696		$	3,901		$	1,696		$	3,901
Expenses		—			55			—			214
Non-cash expenses		—			(59	)		—			59
Payments		(598	)		(1,074	)		(842	)		(1,867	)
Balance at the end of the period	$	1,098		$	2,823		$	854		$	2,307

As of ~~June~~September 30, 2019, the Company had $0.2 million of long-term severance liability related to the restructuring activities recorded in other liabilities in the Condensed Consolidated Balance Sheet. The current portion of the restructuring liability is recorded in Other accrued liabilities in the Condensed Consolidated Balance Sheet.

Acquisition of Infiltrator Water Technologies - On July 31, 2019 (the “Closing Date”), the Company completed its Acquisition of Infiltrator Water Technologies pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) dated July 31, 2019. Infiltrator Water Technologies manufactures and sells wastewater systems for homes and provides drainage chambers for septic and storm water management. The total fair value of consideration transferred was $1,146.0 million. The Merger Agreement was funded through the new Senior Secured Credit Facilities as further described in “Note 11. Debt”. The results of operations of Infiltrator Water Technologies are included in the Condensed Consolidated Statements of Operations after July 31, 2019.

The following table summarizes the consideration transferred and the preliminary purchase price allocation of the assets acquired and liabilities assumed. The Company’s estimates and assumptions are subject to change during the measurement period (up to one year from the Closing Date), as the Company continues to finalize the valuations of assets acquired and liabilities assumed. Such finalizations may result in material changes from the preliminary purchase price allocations.

The fair value of consideration transferred includes $6.0 million of Infiltrator Water Technologies payable to the Company and $6.6 million of Infiltrator Water Technologies receivable due from the Company.

The goodwill of $567.0 million represents the excess of consideration transferred over the fair value of assets acquired and liabilities assumed and is attributable to expected revenue synergies, as well as operating efficiencies and cost savings. The goodwill is not deductible for tax purposes and is assigned to the Infiltrator Water Technologies segment.

Of the $109.9 million of preliminary purchase price allocated to deferred tax liabilities, $59.8 million related to the step up of GAAP basis for fair market valuations, while the remaining $50.1 million were acquired deferred tax liabilities. Of the total $59.8 million, $55.7 million was attributed to intangible assets. See “Note 13. Income Taxes” for additional information.

The purchase price excludes transaction costs. During the three and six months ended September 30, 2019, the Company incurred $16.6 million and $20.8 million, respectively, of transaction costs related to the Acquisition such as legal, accounting, valuation and other professional services. The Company estimates approximately $7.3 million of transaction costs during the six months ended September 30, 2019 were not deductible for tax purposes. These costs are included in general and administrative expenses in the Condensed Consolidated Statements of Operations and Condensed Consolidated Statements of Comprehensive Income.

The identifiable intangible assets recorded in connection with the closing of the Acquisition are based on valuations including customer relationships, patents and developed technology, and tradename and trademarks totaling $475.0 million. Customer relationships are amortized using an accelerated method over an estimated useful life of 15 years. Patents and developed technology and tradename and trademarks are on a straight-line basis over the respective useful lives of 10 and 20 years.

The net sales and income before taxes of Infiltrator Water Technologies since the acquisition are included in the Condensed Consolidated Statements of Operations for the three and six months ended September 30, 2019 were $52.7 million and $6.9 million, respectively.

The unaudited pro forma information for the three and six months ended September 30, 2019 and 2018 presented below includes the effects of the Acquisition as if it had been consummated as of April 1, 2018, with adjustments to give effect to pro forma events that are directly attributable to the Acquisition. Adjustments include those related to the amortization of acquired intangible assets, increases in interest expense due to additional borrowings incurred to finance the Acquisition, transaction costs, the elimination of transactions between the Company and Infiltrator Water Technologies and the estimated tax impacts thereof. The unaudited pro forma information does not reflect any operating efficiency or potential cost savings that could result from the consolidation of Infiltrator Water Technologies. Accordingly, the unaudited pro forma information is presented for informational purposes only and is not necessarily indicative of the actual results of the combined company if the Acquisition had occurred at the beginning of the period presented, nor is it indicative of the future results of operations.

Revenue Disaggregation - The Company disaggregates net sales by ~~geographic region~~Domestic, International and Infiltrator Water Technologies and further disaggregates Domestic and International by product type, consistent with its reportable segment disclosure. This disaggregation level best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. Refer to “Note ~~14.~~15. Business Segments Information” for the Company’s disaggregation of Net sales by reportable segment.

Contract Balances - The Company recognizes a contract asset representing the Company’s right to recover products upon the receipt of returned products and a contract liability for the customer refund. The following table presents the balance of the Company’s contract asset and liability as of ~~June~~September 30, 2019 and March 31, 2019:

	June 30, 2019		March 31, 2019		September 30, 2019		March 31, 2019
	(In thousands)				(In thousands)
Contract asset - product returns	$	787	$	646	$	1,069	$	646
Refund liability		1,698		1,372		2,429		1,372

ASC 842 Adoption - The Company adopted the provisions of ASC 842 beginning on April 1, 2019 using the transition methodology in ASC 842 which does not require adjustments to comparative periods or require modified disclosures. The Company elected the transition relief practical ~~expedients.~~expedient package as described in ASC 842-10-65-1. ASC 842 provides lessees with the option of electing an accounting policy, by class of underlying asset, in which the lessee may choose not to separate nonlease components from lease components. The Company elected this practical expedient for leases of certain classes of ~~equipment.~~equipment, including forklifts and fleet tractors and trailers. The Company also elected the accounting policy to not recognize the right-of-use asset and lease liability for leases with an initial expected term of 12 months or less (“Short-term leases”). The adoption of ASC 842 resulted in the recording of $13.3 million of additional lease liabilities and right-of-use assets to the beginning balance of the Company’s Condensed Consolidated Balance Sheet. Infiltrator Water Technologies adopted ASC 842 on July 31, 2019 using the same methodology and policy elections taken by the Company on April 1, 2019. The Infiltrator Water Technologies adoption of ASC 842 resulted in the recording of $11.2 million of additional lease liabilities and corresponding right-of-use assets to the beginning balance of the Company’s Condensed Consolidated Balance ~~Sheet.~~Sheet as of September 30, 2019. The adoption did not have an impact on the Company’s Condensed Consolidated Statement of Operations and Condensed Consolidated Statement of Cash Flows.

Nature of the Company’s Leases - The Company has operating and finance leases for plants, yards, corporate offices, tractors, trailers and other equipment. The Company’s leases have a remaining term of less than one year to 30 ~~years, some~~years. A portion of ~~which~~the Company’s yard leases include ~~options~~an option to extend the leases for up to 5 years. The Company has included renewal options which are reasonably certain to be excised in its right-of-use asset and lease liability.

The Company’s lease payments are generally fixed. Certain equipment leases contain residual value guarantees that create a contingent obligation on the part of the Company to compensate the lessor if the leased asset cannot be sold for an amount in excess of a specified minimum value at the conclusion of the lease term. The calculation is based on the original cost of the transportation equipment, less lease payments made, compared to a percentage of the transportation equipment’s fair market value at the time of sale. All leased units covered by this guarantee have been classified as finance leases and a corresponding finance lease obligation was recorded. Therefore, no contingent obligation is needed.

For all leases with an initial expected term of more than 12 months, the Company recorded, at the adoption date of ASC 842 or lease commencement date for leases entered into after the adoption date, a lease liability, which is the lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. The Company will utilize its collateralized incremental borrowing rate commensurate to the lease term as the discount rate for its leases, unless the Company can specifically determine the lessor’s implicit rate. The incremental borrowing rate for each is lease is determined based on ~~its term and~~the Company’s credit rating, adjusted for the impacts of ~~collateral.~~collateral, and the lease term.

Lease ~~Expense~~Cost - The components of lease ~~expense~~cost for the three and six months ended ~~June~~September 30, 2019 was as follows:

(Amounts in thousands)	Income Statement Classification	2019		Income Statement Classification	Three Months Ended September 30, 2019		Six Months Ended September 30, 2019
Operating lease cost	��
Operating lease expense	Cost of goods sold	$	948
Operating lease expense	General and administrative		90
Short-term lease expense	Cost of goods sold		736
Operating lease cost				Cost of goods sold	$	1,179	$	2,127
Operating lease cost				General and administrative		399		489
Short-term lease cost				Cost of goods sold		588		1,324
Total operating lease cost		$	1,774		$	2,166	$	3,940
Finance lease cost
Amortization of right-of-use assets	Cost of goods sold		4,554	Cost of goods sold		5,345		9,899
Amortization of right-of-use assets	General and administrative		356	General and administrative		361		717
Interest on lease liabilities	Interest expense		1,159	Interest expense		1,168		2,327
Total finance lease cost		$	6,069		$	6,874	$	12,943

Supplemental cash flow information related to leases for the six months ended September 30, 2019 was as follows:

~~Supplemental cash flow information related to leases for the three months ended June 30, 2019 was as follows:~~

Supplemental balance sheet information related to leases as of ~~June~~September 30, 2019 was as follows:

(Amounts in thousands)	Balance Sheet Classification	2019			Balance Sheet Classification	2019
Operating leases
Right-of-use assets	Other assets	$	13,203		Other assets	$	24,010
Current lease liabilities	Other accrued liabilities		3,809		Other accrued liabilities		6,604
Non-current lease liabilities	Other liabilities		9,407		Other liabilities		17,340
Total operating lease liabilities		$	13,216			$	23,944
Finance leases
Right-of-use assets	Property, plant and equipment		106,018		Property, plant and equipment		102,948
Current lease liabilities	Current maturities of finance lease obligations		22,695		Current maturities of finance lease obligations		22,555
Non-current lease liabilities	Long-term finance lease obligations		56,368		Long-term finance lease obligations		52,746
Total finance lease liabilities		$	79,063			$	75,301

Weighted average lease term
Operating leases			8.36				7.18
Finance leases			11.15				10.88
Weighted average discount rate
Operating leases			3.54	%			3.53	%
Finance leases			4.98	%			4.96	%

The following is a schedule by year of future minimum lease payments on a rolling twelve-month basis under operating and finance leases and the present value of the net minimum lease payments as of ~~June~~September 30, 2019:

(Amounts in thousands)	Operating Leases		Finance Leases		Operating Leases		Finance Leases
Year 1	$	4,154	$	26,010	$	7,443	$	25,926
Year 2		3,607		21,732		6,012		21,258
Year 3		2,362		17,117		3,742		15,777
Year 4		1,261		10,780		2,409		9,722
Year 5		842		6,553		1,663		5,740
Thereafter		4,296		7,528		6,719		6,525
Total minimum lease payments	$	16,522	$	89,720	$	27,988	$	84,948
Less: amount representing interest		3,306		10,657		4,044		9,647
Present value of net minimum lease payments	$	13,216	$	79,063	$	23,944	$	75,301

As of March 31, 2019, total contractual obligations for capital and operating leases were as follows:

	June 30, 2019		March 31, 2019		September 30, 2019		March 31, 2019
	(In thousands)				(In thousands)
Raw materials	$	44,607	$	47,910	$	60,243	$	47,910
Finished goods		185,677		216,630		188,671		216,630
Total inventories	$	230,284	$	264,540	$	248,914	$	264,540

When applying fair value principles in the valuation of assets and liabilities, the Company is required to maximize the use of quoted market prices and minimize the use of unobservable inputs. The Company has not changed its valuation techniques used in measuring the fair value of any financial assets or liabilities during the fiscal periods presented. The fair value estimates take into consideration the credit risk of both the Company and its counterparties.

When active market quotes are not available for financial assets and liabilities, the Company uses industry standard valuation models. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including credit risk, interest rate curves, foreign currency rates and forward and spot prices for currencies. In circumstances where market-based observable inputs are not available, management judgment is used to develop assumptions to estimate fair value. Generally, the fair value of Level 3 instruments is estimated as the net present value of expected future cash flows based on internal and external inputs.

Recurring Fair Value Measurements - The assets and liabilities carried at fair value as of the periods presented were as follows:

	June 30, 2019								September 30, 2019
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
	(In thousands)								(In thousands)
Assets:
Derivative assets – diesel fuel contracts	$	151	$	—	$	151	$	—	$	20	$	—	$	20	$	—
Total assets at fair value on a recurring basis	$	151	$	—	$	151	$	—	$	20	$	—	$	20	$	—
Liabilities:
Derivative liabilities – diesel fuel contracts	$	314	$	—	$	314	$	—	$	81	$	—	$	81	$	—
Interest rate swaps		638		—		638		—
Contingent consideration for acquisitions		57		—		—		57
Foreign exchange forward contracts		53		—		53		—
Total liabilities at fair value on a recurring basis	$	1,062	$	—	$	1,005	$	57	$	81	$	—	$	81	$	—

For the ~~three~~six months ended ~~June~~September 30, 2019 and 2018, respectively, there were no0 transfers in or out of Levels 1, 2 or 3.

Valuation of Contingent Consideration for Acquisitions - The method used to price these liabilities is considered Level 3. Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3) for the periods presented were as follows:

	Three Months Ended June 30,						Three Months Ended September 30,						Six Months Ended September 30,
	2019			2018			2019			2018			2019			2018
	(In thousands)						(In thousands)						(In thousands)
Balance at the beginning of the period	$	203		$	578		$	57		$	460		$	203		$	578
Change in fair value		—			2			40			7			40			9
Payments of contingent consideration liability		(146	)		(120	)		(17	)		(142	)		(163	)		(262	)
Balance at the end of the period	$	57		$	460		$	80		$	325		$	80		$	325

Valuation of Debt - The carrying amounts of current financial assets and liabilities approximate fair value because of the immediate or short-term maturity of these items, or in the case of derivative instruments, because they are recorded at fair value. The carrying and fair value of the Company’s Senior Notes (as defined below and further discussed in “Note 11. Debt”) were $350.0 million and $355.3 million, respectively, as of September 30, 2019. The fair value of the Senior Notes was determined based on a quoted market data for the Company’s Senior Notes. The categorization of the framework used to evaluate the Senior Notes is considered Level 2.

The carrying and fair value of the Company’s Prudential Senior Notes (as defined below and further discussed in “Note 13. Debt” to the Company’s audited financial statements included in the Fiscal 2019 Form 10-K)

were ~~$100.0 million and $100.5 million, respectively, as of June~~zero at September 30, 2019, and $100.0 million and $98.9 million, respectively, at March 31, 2019. The fair value of the Prudential Senior Notes was determined

based on a comparison of the interest rate and terms of such borrowings to the rates and terms of similar debt available for the period. The Company believes the carrying amount on the remaining long-term debt, including debt under the Term Loan Facility and PNC Credit Agreement (as defined below), is not materially different from its fair value as the interest rates and terms of the borrowings are similar to currently available borrowings. The categorization of the framework used to evaluate this debt is considered Level 2.

The Company uses ~~interest rate swaps,~~ commodity options in the form of collars and swaps, and has previously used interest rate swaps and foreign currency forward contracts to manage its various exposures to interest rate, commodity price fluctuations and foreign currency exchange rate fluctuations. Interest rate swap gains and losses resulting from the difference between the spot rate and applicable base rate is recorded in the Condensed Consolidated Statements of Operations in Interest expense. For collars, commodity swaps and foreign currency forward contracts, contract settlement gains and losses are recorded in the Condensed Consolidated Statements of Operations in Derivative gains and other income, net. Gains and losses related to mark-to-market adjustments for changes in fair value of the derivative contracts are also recorded in the Condensed Consolidated Statements of Operations in Derivative gains and other income, net.

The Company recorded net losses and net (gains) on mark-to-market adjustments for changes in the fair value of derivatives contracts as well as net losses and net (gains) on the settlement of derivative contracts as follows:

	Three Months Ended June 30,						Three Months Ended September 30,					Six Months Ended September 30,
	2019			2018			2019		2018			2019			2018
	(In thousands)						(In thousands)					(In thousands)
Diesel fuel option collars	$	69		$	(12	)	$	7	$	154		$	76		$	142
Interest rate swaps		1,726			(613	)		—		(430	)		1,726			(1,043	)
Foreign exchange forward contracts		(7	)		—			—		—			(7	)		—
Total net unrealized mark-to-market loss (gains)	$	1,788		$	(625	)
Total net unrealized mark-to-market (gains) loss							$	7	$	(276	)	$	1,795		$	(901	)
Diesel fuel option collars		7			(308	)		150		(266	)		157			(574	)
Foreign exchange forward contracts		—			(51	)		102		(39	)		102			(90	)
Interest rate swaps		(166	)		(25	)		710		(67	)		544			(92	)
Total net realized gains	$	(159	)	$	(384	)
Total net realized loss (gains)							$	962	$	(372	)	$	803		$	(755	)

A summary of the fair value of derivatives is included in “Note 6.7. Fair Value Measurement.” ~~On July 24, 2019, the Company liquidated its interest rate swap, diesel fuel option collars and foreign exchange forward contracts.~~

The Company is required to apply the two-class method to compute both basic and diluted net income per share. The two-class method is an earnings allocation formula that treats participating securities as having rights to earnings that would otherwise have been available to common stockholders.

The following table presents information necessary to calculate net income per share for the periods presented, as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding because their inclusion would have been anti-dilutive:

	Three Months Ended June 30,						Three Months Ended September 30,						Six Months Ended September 30,
(In thousands, except per share data)	2019			2018			2019			2018			2019			2018
NET INCOME PER SHARE—BASIC:
Net (loss) income attributable to ADS	$	(226,356	)	$	32,280
Net income (loss) attributable to ADS							$	7,589		$	28,670		$	(218,767	)	$	60,950
Adjustments for:
Dividends to redeemable convertible preferred stockholders		(6,841	)		(497	)		(1,355	)		(478	)		(8,196	)		(975	)
Dividends paid to unvested restricted stockholders		(328	)		(15	)		(4	)		(15	)		(330	)		(30	)
Net (loss) income available to common stockholders and participating securities		(233,525	)		31,768
Net income (loss) available to common stockholders and participating securities								6,230			28,177			(227,293	)		59,945
Undistributed income allocated to participating securities		—			(2,712	)		(204	)		(2,310	)		—			(5,022	)
Net (loss) income available to common stockholders – Basic	$	(233,525	)	$	29,056
Net income (loss) available to common stockholders – Basic							$	6,026		$	25,867		$	(227,293	)	$	54,923
Weighted average number of common shares outstanding – Basic		57,576			56,594			60,222			56,929			58,906			56,776
Net (loss) income per common share – Basic	$	(4.06	)	$	0.51
Net income (loss) per common share – Basic							$	0.10		$	0.45		$	(3.86	)	$	0.97
NET INCOME PER SHARE—DILUTED:
Net (loss) income available to common stockholders – Diluted	$	(233,525	)	$	29,056
Net income (loss) available to common stockholders – Diluted							$	6,026		$	25,867		$	(227,293	)	$	54,923
Weighted average number of common shares outstanding – Basic		57,576			56,594			60,222			56,929			58,906			56,776
Assumed exercise of stock options		—			564			576			629			—			598
Restricted stock								78			—			—			—
Weighted average number of common shares outstanding – Diluted		57,576			57,158			60,876			57,558			58,906			57,374
Net (loss) income per common share – Diluted	$	(4.06	)	$	0.51
Net income (loss) per common share – Diluted							$	0.10		$	0.45		$	(3.86	)	$	0.96
Potentially dilutive securities excluded as anti-dilutive		10,806			6,166			15,084			6,303			13,269			6,229

Common Stock Offering – On September 10, 2019, the Company issued and sold an aggregate of 10,350,000 shares of common stock, $0.01 par value per share, which included the full exercise of the underwriters’ option to purchase additional shares, at a price of $29.75 per share, before underwriting discounts and commissions. The common stock was sold pursuant to the Company’s shelf registration statement and related prospectus supplement. The Company received proceeds of $293.6 million from the issuance after deducting underwriting discounts and commissions and offering expenses. The Company used the net proceeds for the repayment of a portion of the outstanding borrowings under the Senior Secured Credit Facility.

Stockholders’ Equity - The Company did ~~not~~0t repurchase any shares of common stock during the three and six months ended ~~June~~September 30, 2019 and 2018. ~~The~~In February 2017, the Company’s Board of Directors’ ~~in February 2017~~ authorized the Company to repurchase up to $50 million of ADS common stock in accordance with applicable securities laws. As of ~~June~~September 30, 2019, approximately $42.1 million of common stock may be repurchased under the authorization. The repurchase program does not obligate the Company to acquire any particular amount of common stock and may be suspended or terminated at any time at the Company’s discretion.

Special Dividend and the Employees Stock Ownership Plan (“ESOP”) - During the three months ended June 30, 2019, the Board of Directors approved a special cash dividend of $1.00 per share and a quarterly ~~dividend~~dividends of $0.09. The special and quarterly dividend were paid to all stockholders on June 14, 2019 to stockholders of record at the close of business on June 3, 2019. The total dividend payment was $81.6 million. The dividends

received by the unallocated redeemable convertible preferred stock held in the ESOP trust was used to pay $12.0 million of the ESOP loan back to the Company resulting in approximately 11.6 million shares of the Company’s redeemable convertible preferred stock being allocated to ESOP participants. The Company recognized $246.8 million in stock-based compensation expense based on the fair value on the date the Board of Directors approved the special dividend. The Board of Director’s approval committed the ESOP to use those proceeds to pay down the ESOP loan. The special dividend compensation expense was recognized in Cost of goods sold - ESOP special dividend compensation and Selling, general and administrative expenses - ESOP special dividend compensation on the Company’s Consolidated Statement of Operations. The

Company’s ESOP is further described in ~~“Note16.~~“Note 16. Employee Benefit Plans” to the Company’s audited financial statements included in the Fiscal 2019 Form 10-K.

ADS Mexicana - ADS conducts business in Mexico and Central America through its joint venture ADS Mexicana, S.A. de C.V. (together with its affiliate ADS Corporativo, S.A. de C.V., “ADS Mexicana”). ADS owns 51% of the outstanding stock of ADS Mexicana and consolidates ADS Mexicana for financial reporting purposes.

On June 22, 2018, the Company and ADS Mexicana entered into an Intercompany Revolving Credit Promissory Note (the “Intercompany Note”) with a borrowing capacity of $12.0 million. The Intercompany Note matures on June 22, 2022. The other joint venture partner indemnifies the Company for 49% of any unpaid borrowing. The interest rates under the Intercompany Note are determined by certain base rates or London Interbank Offered Rate (“LIBOR”) plus an applicable margin based on the Leverage Ratio. As of ~~June~~September 30, 2019, there were no0 borrowings under the Intercompany Note.

South American Joint Venture - The Tuberias Tigre - ADS Limitada joint venture (the “South American Joint Venture”) manufactures and sells HDPE corrugated pipe in certain South American markets. ADS owns 50% of the South American Joint Venture. The Company has concluded that it is appropriate to account for these investments using the equity method, whereby the Company’s share of the income or loss of the joint venture is reported in the Condensed Consolidated Statements of Operations under Equity in net loss (income) of unconsolidated affiliates and the Company’s investment in the joint venture is included in Other assets in the Condensed Consolidated Balance Sheets. ADS is the guarantor of 50% of the South American Joint Venture’s credit facility, and the debt guarantee is shared equally with the joint venture partner. The Company’s maximum potential obligation under this guarantee is $11.0 million as of ~~June~~September 30, 2019. The maximum borrowings permitted under the South American Joint Venture’s credit facility are $22.0 million. This credit facility allows borrowings in either Chilean pesos or US dollars at a fixed interest rate determined at inception of each draw on the facility. The guarantee of the South American Joint Venture’s debt expires on December 31, 2020. ADS does not anticipate any required contributions related to the balance of this credit facility. As of ~~June~~September 30, 2019 and March 31, 2019, the outstanding principal balances of the credit facility including letters of credit were ~~$12.2~~$11.2 million and $12.3 million, respectively. As of ~~June~~September 30, 2019, there were no0 U.S. dollar denominated loans. The weighted average interest rate as of ~~June~~September 30, 2019 was ~~5.6%~~5.3% on Chilean peso denominated loans.

ADS and the South American Joint Venture have shared services arrangements in order to execute the joint venture services. In addition, the South American Joint Venture has entered into agreements for pipe and other product sales to ADS and its other related parties, which totaled ~~$0.4~~$0.1 million and $0.5 million for the three and six months ended ~~June~~September 30, 2019, and 0 and $0.6 million for the three and six months ended ~~June~~September 30, 2018. ADS pipe sales to the South American Joint Venture were ~~$0.3~~$0.1 million and ~~$0.2~~$0.4 million for the three and six months ended ~~June~~September 30, 2019, and $0.4 million and $0.6 million for the three and six months ended September 30, 2018, respectively.

Tigre USA - Tigre USA was a joint venture that ADS no longer has an ownership interest in, but the owner is the partner for the South American Joint Venture.

ADS purchased ~~$0.5~~$0.6 million and $1.2 million of Tigre USA manufactured products for use in the production of ADS products during the three and six months ended ~~June~~September 30, ~~2019~~2019. ADS purchased $0.7 million and ~~2018.~~

Tigre USA manufactured products for use in the production of ADS products during the three and six months ended September 30, 2018.

	June 30, 2019			March 31, 2019			September 30, 2019			March 31, 2019
	(In thousands)						(In thousands)
Term Loan Facility							$	700,000		$	—
Senior Notes								350,000			—
Revolving Credit Facility	$	156,200		$	134,400			—			—
Senior Notes payable		100,000			100,000
PNC Credit Agreement								—			134,400
Prudential Senior Notes								—			100,000
Equipment financing		2,195			2,427			1,963			2,427
Total		258,395			236,827			1,051,963			236,827
Unamortized debt issuance costs		(2,119	)		(2,293	)		(2,614	)		(2,293	)
Current maturities		(25,939	)		(25,932	)		(6,195	)		(25,932	)
Long-term debt obligation	$	230,337		$	208,602		$	1,043,154		$	208,602

~~Letters of credit outstanding at June 30, 2019 and March~~Bridge Credit Facility

On July 31, 2019 amounted to $8.4 million and $8.5 million, respectively, and reduce the availability of the existing revolving credit facilities under the Company’s Second Amended and Restated Credit Agreement (the “PNC Credit Agreement”) with PNC Bank, National Association, as administrative agent and various financial institutions thereto.

~~In July~~ 2019, the Company entered into a credit agreement ~~(as amended, amended and restated, supplemented or otherwise modified from time to time, the “Credit~~(the “Base Credit Agreement”) by and among the Company, as borrower, Barclays Bank PLC, as administrative agent, the several lenders from time to time party thereto.

The Base Credit Agreement provided for a term loan facility in an initial aggregate principal amount of up to $1.3 billion (the “Bridge Loan Facility”), a revolving credit facility in an initial aggregate principal amount of up to $350 million (the “Bridge Revolving Credit Facility”), a letter of credit sub-facility in the initial aggregate available amount of up to $50 million, as a sublimit of such Revolving Credit Facility (the “Bridge L/C Facility”) and a swing line sub-facility in the aggregate available amount of up to $50 million, as a sublimit of the Revolving Credit Facility (together with the Bridge Loan Facility, the Bridge Revolving Credit Facility and the Bridge L/C Facility, the “Bridge Credit Facility”).

On July 31, 2019, the Company borrowed approximately $1.3 billion under the Bridge Loan Facility and $145 million under the Bridge Revolving Credit Facility, which amounts were to (i) finance the consideration paid in connection with the closing of the Acquisition, (ii) repay the total outstanding amount as of the Closing Date under the Company’s then existing revolving credit facility with PNC, (iii) repay outstanding amounts of existing indebtedness incurred by Infiltrator Water Technologies under its outstanding credit facility in effect prior to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Bridge Loan Facility. Approximately $300.0 million of outstanding borrowings under the Base Credit Agreement were repaid on September 10, 2019 with proceeds from the Company’s public offering of common stock as further described in “Note 9, Net Income Per Share and Stockholders’ Equity” and approximately $300.0 million of outstanding borrowings under the Bridge Loan Facility were repaid on September 23, 2019 with proceeds from the Company’s offering of $350.0 million Senior Notes, as defined and further described below.

As a result of this borrowing, on July 31, 2019, the Company initially capitalized approximately $46.9 million of deferred financing fees associated with the Bridge Credit Facility. This amount was later reduced by $14.9 million due to refunds received by ADS. The remaining deferred financing costs were written off due to loss on early extinguishment of debt resulting from the $300.0 million principal payment primarily from the Common Stock Offering, $300.0 million principal payment from the issuance of Senior Notes due 2027, and $700 million principal payment from the issuance of the Senior Secured Credit Facility on September 24, 2019. These financings resulted in the Company treating the Bridge Credit Facility as having been extinguished and replaced with the Common Stock Offering, Senior Notes due 2027 and the syndicated Senior Secured Credit Facility for accounting purposes under ASC 470-50. The loss on early extinguishment of debt, which is included in interest expense in the Company's Condensed Consolidated Statements of Operations, primarily reflects the write-off of unamortized debt issuance costs and discounts.

On July 29, 2019, the Company repaid in full all of its and its subsidiaries’ indebtedness and other obligations totaling $104.4 million under that certain Second Amended and Restated Private Shelf Agreement, dated as of June 22, 2017 (as amended the “Shelf Note Agreement”) of the Company’s Senior Notes (“Prudential Senior Notes”), by and among the Company, as issuer, the guarantors from time to time a party thereto, ~~and Barclays Bank PLC and Morgan Stanley Senior Funding,~~PGIM, Inc., as ~~joint lead arrangers, joint bookrunners, syndication agents~~a purchaser and ~~documentation agents.~~the other purchasers from time to time a party thereto. The Company repaid the outstanding indebtedness under the Shelf Note Agreement using borrowings from the Company’s Second Amended and Restated Credit Agreement (the “PNC Credit Agreement”) as in effect as of July 29, 2019. Concurrently with the repayment, the Shelf Noteholders authorized and directed PNC Bank, National Association, in its capacity as Collateral Agent (as defined in the Shelf Note Agreement) to release the security interests and liens securing the Shelf Note Agreement and the Shelf Note Agreement was terminated.

As a result of the repayment described above, the Company expensed approximately $4.2 million primarily consisting of prepayment premiums associated with the debt payoff activity and the write-off of unamortized deferred financing fees, as the payoff meets the criteria to be accounted for as a debt extinguishment.

On the Closing Date, using borrowings of the new Bridge Loan Facility the Company ~~borrowed under the Credit Agreement to repay the outstanding~~repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $239.2 million under the PNC Credit Agreement. ~~See “Note 15. Subsequent Events”~~Concurrently with the repayment, all security interests and liens held by the Collateral Agent (as defined in the PNC Credit Agreement) securing the PNC Credit Agreement were terminated and released and the PNC Credit Agreement was terminated.

As a result of the repayment described above, the Company expensed approximately $2.0 million primarily consisting of the write-off of unamortized deferred financing fees associated with the debt payoff activity, as the payoff meets the criteria to be accounted for ~~additional details~~as a debt extinguishment.

Letters of credit outstanding at March 31, 2019 amounted to $8.5 million, and reduced the availability of the revolving credit facilities under the PNC Credit Agreement with PNC Bank, National Association, as administrative agent and various financial institutions thereto at March 31, 2019.

On September 23, 2019, the Company issued $350.0 million aggregate principal amount of 5.0% senior notes due 2027 (the “Senior Notes”) pursuant to an Indenture, dated September 23, 2019 (the “Indenture”), among the Company, the guarantors party thereto (the “Guarantors”) and U.S. Bank National Association, as Trustee (the “Trustee”). The Senior Notes are guaranteed by each of the Company’s present and future direct and indirect wholly owned domestic subsidiaries that is a guarantor under the Company's Senior Secured Credit Facility. The Senior Notes were offered and sold either to persons reasonably believed to be “qualified institutional buyers” pursuant to Rule 144A under the Securities Act of 1933 (the “Securities Act”) or to persons outside the United States under Regulation S of the Securities Act.

Interest on the Senior Notes will be payable semi-annually in cash in arrears on March 31 and September 30 of each year, commencing on March 31, 2020, at a rate of 5.0% per annum. The Senior Notes will mature on September 30, 2027. The Company used the majority of the net proceeds from the offering of the Senior Notes for the repayment of $300.0 million of its outstanding borrowings under the Company’s Bridge Loan Facility. The deferred financing costs associated with the Senior Notes totaled $2.1 million as of September 30, 2019 and are recorded as a direct reduction from the carrying amount of the related debt.

The Company may redeem the Senior Notes, in whole or in part, at any time on or after September 30, 2022 at established redemption prices. At any time prior to September 30, 2022, the Company may also redeem up to 40% of the Senior Notes with net cash proceeds of certain equity offerings at a redemption price equal to 105.0% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, at any time prior to September 30, 2022, the Company may redeem the Senior Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date plus an applicable “make-whole” premium.

The Indenture contains customary events of default, including, among other things, payment default, failure to comply with covenants or agreements contained in the Indenture or the Senior Notes and certain provisions related to bankruptcy events. The Indenture also contains customary negative covenants.

On September 24, 2019, the Company successfully completed a $700 million syndication of the remaining balance of the Bridge Credit Facility subsequent to the aforementioned Common Stock Offering and Senior Notes due 2027 and in connection with the syndication, the Company amended the Base Credit Agreement (the “Senior Secured Credit Facility”). The Senior Secured Credit Facility reduced the applicable margin utilized in the determination of the interest rate, as well as other provisions.

The Senior Secured Credit Facility provides for a term loan facility in an initial aggregate principal amount of $700 million (the “Term Loan Facility”), a revolving credit facility in an initial aggregate principal amount of up to $350 million (the “Revolving Credit Facility”), a letter of credit sub-facility in the initial aggregate available amount of up to $50 million, as a sublimit of such Revolving Credit Facility (the “L/C Facility”) and a swing line sub-facility in the aggregate available amount of up to $50 million, as a sublimit of the Revolving Credit Facility (together with the Term Loan Facility, the Revolving Credit Facility and the L/C Facility, the “Senior Secured Credit Facility”). Letters of credit outstanding at September 30, 2019 amounts to $8.5 million and reduced the availability of the Revolving Credit Facility.

In connection with entering into the Senior Secured Credit Facility, the Company capitalized approximately $0.4 million in deferred financing fees. To the extent not previously paid, all then-outstanding amounts under the Term Loan Facility are due and payable on the maturity date of the Term Loan Facility, which is seven years from the Closing Date. Borrowings under the Revolving Credit Facility are available beginning on September 24, 2019 and, to the extent not previously paid, all then-outstanding amounts under the Revolving Credit Facility are due and payable on the maturity date of the Revolving Credit Facility, which is five years from the Closing Date.

At the option of the Company, borrowings under the Term Loan Facility and under the Revolving Credit Facility (subject to certain limitations) bear interest at either a base rate (as determined pursuant to the Senior Secured Credit Facility) or at a Eurocurrency Rate, based on LIBOR (as defined in the Senior Secured Credit Facility), plus the applicable margin as set forth therein from time to time. In the case of the Revolving Credit Facility, the applicable margin is based on the Company’s consolidated senior secured net leverage ratio (as defined in the Senior Secured Credit Facility). All borrowings under the Term Loan Facility used to finance the Merger Consideration as described above initially bear interest at a Eurocurrency Rate applicable to Eurocurrency Loans (as defined in the Senior Secured Credit Facility) denominated in U.S. Dollars.

The Company is also required to pay a commitment fee that is based upon the undrawn amounts of the Revolving Credit Facility at a rate per annum based upon a calculated ratio as prescribed within the Senior Secured Credit Facility. As of September 30, 2019, the rate the Company was committed to paying on the undrawn portion was equal to 0.2%.

The Company’s obligations under the Senior Secured Credit Facility have been secured by granting a first priority lien on substantially all of the Company’s assets (subject to certain exceptions and limitations), and each of Stormtech, LLC, Advanced Drainage of Ohio, Inc. and Infiltrator Water Technologies, LLC (collectively the “Guarantors”) has agreed to guarantee the obligations of the Company under the Senior Secured Credit Facility and to secure the obligations thereunder by granting a first priority lien in substantially all of such Guarantor’s assets (subject to certain exceptions and limitations).

Principal Maturities – Maturities of long-term debt ~~repayment.~~(excluding interest and deferred financing costs) as of September 30, 2019 are summarized below:

Purchase Commitments - The Company secures supplies of resin raw material by agreeing to purchase quantities during a future given period at a fixed price. These purchase contracts typically range from 1 to 12 months and occur in the ordinary course of business. Under such non-cancelable purchase contracts in place at ~~June~~September 30, 2019, the Company has agreed to purchase resin over the period ~~July~~October 2019 through December 2019 at a committed purchase cost of ~~$11.8~~$5.9 million.

The Company enters into equipment purchase contracts with manufacturers. Under such non-cancelable purchase contracts in place at September 30, 2019, the Company has agreed to purchase equipment to be delivered in fourth quarter of fiscal 2020 at a committed purchase cost of $1.4 million.

Litigation and Other Proceedings -– On July 29, 2015, a putative stockholder class action, Christopher Wyche, individually and on behalf of all others similarly situated v. Advanced Drainage Systems, Inc., et al. (Case No. 1:15-cv-05955-KPF), was commenced in the U.S. District Court for the Southern District of New York (the “District Court”), naming the Company, along with Joseph A. Chlapaty, the Company’s former Chief Executive Officer, and Mark B. Sturgeon, the Company’s former Chief Financial Officer, as defendants and alleging violations of the federal securities laws. An amended complaint was filed on April 28, 2016. The amended complaint alleged that the Company made material misrepresentations and/or omissions of material

fact in its public disclosures during the period from July 25, 2014 through March 29, 2016, in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder. On March 10, 2017, the District Court dismissed plaintiff’s claims against all defendants in their entirety and with prejudice. Plaintiff appealed to the United States Court of Appeals for the Second Circuit, and on October 13, 2017 the District Court’s judgment was affirmed by the Second Circuit. On October 27, 2017, plaintiff filed a petition for rehearing with the Second Circuit. The Second Circuit denied the petition for rehearing on November 28, 2017. On November 27, 2018, the plaintiff filed with the District Court a motion for relief from final judgment and for leave to file an amended complaint, which, the defendants opposed. On July 3, 2019, the District Court denied the plaintiff’s motion. ~~While it~~The Plaintiff did not appeal the District Court’s decision and the matter is ~~reasonably possible that this matter~~

~~ultimately could be decided unfavorably to the Company, the Company is currently unable to estimate the range of the possible losses, but it could be material.~~concluded.

The Company is involved from time to time in various legal proceedings that arise in the ordinary course of business, including but not limited to commercial disputes, environmental matters, employee related claims, intellectual property disputes and litigation in connection with transactions including acquisitions and divestitures. The Company does not believe that such litigation, claims, and administrative proceedings will have a material adverse impact on the Company’s financial position or results of operations. The Company records a liability when a loss is considered probable, and the amount can be reasonably estimated.

In March 2019, the Company initiated an internal investigation process, under the guidelines of the Company’s Code of Business Conduct and Ethics, into its consolidated joint venture affiliate ADS Mexicana’s senior management’s ethical and business conduct, as well as compliance of certain products with, along with considerations into, Mexican laws and regulations over the previous 12 months. The Company has recorded an accrual for the current estimate of probable losses resulting from the investigation which is not material to our Condensed Consolidated Financial Statements. However due to the inherent uncertainties in determining the use, installation application and location of our ADS Mexicana products sold, along with the consideration of Mexican laws and regulations related to warranty and product liability obligations, the Company is unable to determine the maximum potential future losses that may occur, which could be material to the Condensed Consolidated Financial Statements.

The Company’s effective tax rate will vary based on a variety of factors, including overall profitability, the geographical mix of income before taxes and related tax rates in jurisdictions where it operates and other one-time charges, as well as discrete events. For the three months ended June 30, 2019 and 2018, the Company utilized an effective tax rate of (10.9%) and 29.7%, respectively, to calculate its provision for income taxes. Consistent with the three months ended June 30, 2018, state and local income taxes and the Company’s ESOP increased the rate for the three months ended June

ADS has several programs for stock-based payments to employees and non-employee members of its Board of Directors, including stock options and restricted stock. Equity-classified restricted stock awards are measured based on the grant-date estimated fair value of each award. The Company accounts for all restricted stock granted to Directors as equity-classified awards. The Company recognized stock-based compensation expense in the following line items of the Condensed Consolidated Statements of Operations for the three and six months ended ~~June~~September 30, 2019 and 2018:

	Three Months Ended June 30,				Three Months Ended September 30,				Six Months Ended September 30,
	2019		2018		2019		2018		2019		2018
	(In thousands)				(In thousands)				(In thousands)
Component of income before income taxes:
Cost of goods sold	$	112	$	62	$	189	$	82	$	301	$	144
Selling expenses		56		36		179		50		235		86
General and administrative expenses		1,673		1,461		2,803		1,680		4,476		3,141
Total stock-based compensation expense	$	1,841	$	1,559	$	3,171	$	1,812	$	5,012	$	3,371

The following table summarizes stock-based compensation expense by award type for the three and six months ended ~~June~~September 30, 2019 and 2018:

	Three Months Ended June 30,				Three Months Ended September 30,				Six Months Ended September 30,
	2019		2018		2019		2018		2019		2018
	(In thousands)				(In thousands)				(In thousands)
Stock-based compensation expense:
Equity-classified Stock Options	$	551	$	773	$	700	$	795	$	1,251	$	1,568
Restricted Stock		642		543		957		528		1,599		974
Performance Units		372		—		1,201		235		1,573		332
Non-Employee Directors		276		243		313		254		589		497
Total stock-based compensation expense	$	1,841	$	1,559	$	3,171	$	1,812	$	5,012	$	3,371

On May 24, 2017, the Board of Directors approved the 2017 Omnibus Incentive Plan (the “2017 Incentive Plan”) which was approved by the Company’s stockholders on July 17, 2017. The 2017 Incentive Plan provides for the issuance of a maximum of 3.5 million shares of the Company’s common stock for awards made thereunder, which awards may consist of stock options, restricted stock, restricted stock units, stock appreciation rights, phantom stock, cash-based awards, performance awards (which may take the form of performance cash, performance units or performance shares) or other stock-based awards.

Restricted Stock - During the three and six months ended ~~June~~September 30, 2019, the Company granted 0.1 million and 0.2 million shares of restricted stock with a grant date fair value of ~~$3.3 million.~~$3.6 million and $6.9 million, respectively.

Performance Units - In addition, during the ~~three~~six months ended ~~June~~September 30, 2019, the Company granted 0.1 million performance units, subject to performance and services conditions. The grant date fair value of the performance units was $3.4 million, based on the market price of the Company’s common stock at the date of the grant. For the performance units, 50% of the award is based upon the achievement of certain levels of Return on Invested Capital for the performance period and 50% is based upon the achievement of certain levels of Free Cash Flow for the performance period. The performance units have a 3-year performance period from April 1, 2019 through March 31, 2022. The performance units, and any accrued dividend equivalents, will be settled in shares of the Company’s common stock, if the applicable performance and service conditions are satisfied.

Options - During the ~~three~~six months ended ~~June~~September 30, 2019, the Company granted 0.3 million nonqualified stock options under the 2017 Incentive Plan. The grant date fair value of the nonqualified stock options was $2.7 million. The Company estimates the fair value of stock options using a Black-Scholes option-pricing model. The following table summarizes the assumptions used in estimate the fair value of stock-options during the ~~three~~six months ended ~~June~~September 30, 2019:

~~The~~Following the Acquisition of Infiltrator Water Technologies, the Company revised its reportable segments to reflect how the Chief Operating Decision Maker (“CODM”) currently reviews financial information and makes operational decisions. After the Acquisition, ADS operates its business in ~~two~~3 distinct ~~operating~~reportable segments: “Pipe”, “International” and “Infiltrator Water Technologies.” “Allied Products & Other” represents the Company’s Allied Products and all other business segments. “Pipe” and “Allied Products & Other” were previously included as Domestic. With the change in reportable segments, ~~based on~~ the ~~markets it serves: “Domestic” and “International.” The Chief Operating Decision Maker evaluates~~CODM is now evaluating segment reporting based on Net ~~sales~~Sales and Segment Adjusted ~~EBITDA.~~Gross Profit. The Company ~~calculates~~calculated Segment Adjusted ~~EBITDA~~Gross Profit as net ~~income or loss before interest, income taxes,~~sales less costs of goods sold, depreciation and amortization, stock-based compensation ~~expense,~~and non-cash ~~charges~~charges. A measure of assets is not applicable, as segment assets are not regularly reviewed by the CODM for evaluating performance or allocating resources. The prior period segment results and related disclosures have been recast to conform to the current year presentation.

Pipe – The Pipe segment manufactures and markets high performance thermoplastic corrugated pipe throughout the United States. The Company maintains and serves these markets through product distribution relationships with many of the largest national and independent waterworks distributors, buying groups and co-ops, major national retailers as well as an extensive network of hundreds of small to medium-sized distributors across the U.S.

Products include single wall pipe, N-12 HDPE pipe sold into the Storm sewer, Infrastructure and Agriculture markets, High Performance polypropylene pipe sold into the Storm sewer, Infrastructure and sanitary sewer markets. Products are designed primarily for storm water management in the construction and infrastructure marketplace across a broad range of end markets and applications, including non-residential, residential, agriculture and infrastructure. Products are manufactured using HDPE and polypropylene plastic material.

Infiltrator Water Technologies – Infiltrator Water Technologies is a leading national provider of plastic leach field chambers and systems, septic tanks and accessories, primarily for use in residential applications. Infiltrator Water Technologies products are used in on-site septic wastewater treatment systems in the United States and Canada.

International – The International segment manufactures and markets pipe and allied products in certain regions outside of the United States, including Company owned facilities in Canada, subsidiaries that distribute to Europe and the Middle East, exports and through the Company’s joint ventures with local partners in Mexico and South America. The Company’s Mexican joint venture, ADS Mexicana, primarily serves the Mexican and Central American markets, while its South American Joint Venture, Tigre-ADS, is the primary channel to serve the South American markets. The Company’s International product lines include single wall pipe, N-12 HDPE pipe, high performance PP pipe and certain ~~other expenses.~~ geographies also sell our broad line of Allied Products.

Allied Products & Other – Allied Products and Other manufactures and markets products throughout the United States. Products include StormTech, Nyloplast, ARC Septic Chambers, Inserta Tee, BaySaver filters and water quality structures, Fittings, and FleXstorm. The Company maintains and serves these markets through product distribution relationships with many of the largest national and independent waterworks distributors, major national retailers as well as an extensive network of hundreds of small to medium-sized distributors across the U.S. The Company also sells through a broad variety of buying groups and co-ops in the United States.

The following table sets forth reportable segment information with respect to the amount of Net sales contributed by each class of similar products for the periods presented:

Three Months Ended
June 30,

2019

2018

(In thousands)

Domestic

Pipe

$
262,121

$
242,026

Allied Products

112,254

100,472

Total domestic

374,375

342,498

International

Pipe

29,284

34,448

Allied Products

10,049

10,901

Total international

39,333

45,349

Total Net sales

$
413,708

$
387,847

	Three Months Ended
	September 30, 2019								September 30, 2018
	Net Sales			Intersegment Net Sales			Net Sales from External Customers		Net Sales		Intersegment Net Sales		Net Sales from External Customers
Pipe	$	281,405		$	(342	)	$	281,063	$	249,380	$	—	$	249,380
Infiltrator Water Technologies		64,889			(12,189	)		52,700		—		—		—
International
International - Pipe		34,617			—			34,617		44,008		—		44,008
International - Allied Products		13,167			—			13,167		11,278		—		11,278
Total International		47,784			—			47,784		55,286		—		55,286
Allied Products & Other		114,358			—			114,358		101,889		—		101,889
Intersegment Eliminations		(12,531	)		12,531			—		—		—		—
Total Consolidated	$	495,905		$	—		$	495,905	$	406,555	$	—	$	406,555

	Six Months Ended
	September 30, 2019								September 30, 2018
	Net Sales			Intersegment Net Sales			Net Sales from External Customers		Net Sales		Intersegment Net Sales		Net Sales from External Customers
Pipe	$	543,586		$	(342	)	$	543,244	$	491,450	$	—	$	491,450
Infiltrator Water Technologies		64,889			(12,189	)		52,700		—		—		—
International
International - Pipe		63,902			—			63,902		78,456		—		78,456
International - Allied Products		23,216			—			23,216		22,179		—		22,179
Total International		87,118			—			87,118		100,635		—		100,635
Allied Products & Other		226,551			—			226,551		202,317		—		202,317
Intersegment Eliminations		(12,531	)		12,531			—		—		—		—
Total Consolidated	$	909,613		$	—		$	909,613	$	794,402	$	—	$	794,402

The following sets forth certain ~~additional~~ financial information attributable to the reportable segments for the periods ~~presented:~~presented.

Common Stock Dividend - During the third quarter of fiscal 2020, the Company declared a quarterly cash dividend of $0.09 per share of common stock. The ~~following sets forth certain additional financial information attributable~~dividend is payable on December 13, 2019 to stockholders of record at the ~~reportable segments as~~close of ~~the periods presented:~~business on November 29, 2019.

~~The following reconciles net (loss) income to segment adjusted EBITDA for the periods presented:~~

~~Acquisition of Infiltrator -~~ On July 31, 2019 (the “Closing Date”), the Company completed its Acquisition of IWT pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) dated July 31, 2019. IWT manufactures and sells wastewater systems for homes and provides drainage chambers for septic and storm water management. The Acquisition will combine the Company's industry leading position in stormwater management with IWT's leading platform in onsite septic waste management. The Merger Agreement was funded through the new Senior Secured Credit Facilities as further described below.

~~The following table summarizes the preliminary consideration paid, net of cash acquired. The amounts below are preliminary and are subject to closing adjustments as outlined in the Merger Agreement.~~

The following table summarizes the consideration paid and the preliminary purchase price allocation of the assets acquired and liabilities assumed. Due to the recent closing of the Acquisition, on July 31, 2019, the purchase price allocation for assets acquired and liabilities assumed is preliminary and will be finalized when valuations are complete and final assessments of the fair value of acquired assets and assumed liabilities are completed. Such finalizations may result in material changes from the preliminary purchase price allocations. The Company’s estimates and assumptions are subject to change during the measurement period (up to one year from the Closing Date), as the Company finalizes the valuations of assets acquired and liabilities assumed.

The preliminary goodwill of $578.7 million represents the excess of consideration transferred over the preliminary fair value of assets acquired and liabilities assumed and is attributable to expected revenue synergies, as well as operating efficiencies and cost savings. The Company does not expect any of this goodwill to be deductible for income tax purposes and is assessing the impact of the Acquisition on the Company’s reportable segments.

The preliminary purchase price excludes transaction costs. During the three months ended June 30, 2019, the Company incurred $4.2 million of transaction costs related to the Acquisition such as legal, accounting, valuation and other professional services. These costs are included in general and administrative expenses in the condensed consolidated statements of operations and comprehensive income.

The identifiable intangible assets recorded in connection with the closing of the Acquisition are based on preliminary valuations include customer relationships, patents and developed technology, and tradename and trademarks totaling $475.0 million. Customer relationships are expected to be amortized using an accelerated method over an estimated useful life of 15 years. Patents and developed technology and tradename and trademarks are expected to be amortized on a straight-line basis over the respective useful lives of 10 and 20 years.

The unaudited pro forma information for the three months ended June 30, 2019 and 2018 presented below includes the effects of the Acquisition as if it had been consummated as of April 1, 2018, with adjustments to give effect to pro forma events that are directly attributable to the Acquisition. Adjustments include those related to the amortization of acquired intangible assets, increases in interest expense due to additional borrowings incurred to finance the Acquisition, transaction costs, the elimination of transactions between the Company and IWT and the estimated tax impacts thereof. The three months ended June 30, 2019 supplemental pro forma earnings were adjusted to exclude transaction cost of $4.5 million incurred in the three months ended June 30, 2019. The June 30, 2018 supplemental pro forma earnings were adjusted to include these charges and an additional $12.5 million of transaction costs. The unaudited pro forma information does not reflect any operating efficiency or potential cost savings that could result from the

consolidation of IWT. Accordingly, the unaudited pro forma information is presented for informational purposes only and is not necessarily indicative of the actual results of the combined company if the Acquisition had occurred at the beginning of the period presented, nor is it indicative of the future results of operations.

~~New Senior Secured Credit Facilities~~ - On July 31, 2019, the Company entered into the Credit Agreement by and among the Company, as borrower, Barclays Bank PLC, as administrative agent, the several lenders from time to time party thereto, and Barclays Bank PLC and Morgan Stanley Senior Funding, Inc., as joint lead arrangers, joint bookrunners, syndication agents and documentation agents.

The Credit Agreement provides for a term loan facility in an initial aggregate principal amount of up to $1.3 billion (the “Term Loan Facility”), a revolving credit facility in an initial aggregate principal amount of up to $350 million (the “Revolving Credit Facility”), a letter of credit sub-facility in the initial aggregate available amount of up to $50 million, as a sublimit of such Revolving Credit Facility (the “L/C Facility”) and a swing line sub-facility in the aggregate available amount of up to $50 million, as a sublimit of the Revolving Credit Facility (together with the Term Loan Facility, the Revolving Credit Facility and the L/C Facility, the “Senior Secured Credit Facility”).

On the Closing Date, the Company borrowed under the Credit Agreement which was used to (i) finance the Merger Consideration paid in connection with the closing of the Acquisition, (ii) repay the total outstanding amount as of the Closing Date under the Company’s PNC Credit Agreement, (iii) repay outstanding amounts of existing indebtedness incurred by IWT under its outstanding credit facility in effect prior to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Credit Agreement.

The Term Loan Facility must be repaid in equal quarterly installments commencing on January 1, 2020 and continuing on the first day of each consecutive April, July, October and January thereafter. To the extent not previously paid, all then-outstanding amounts under the Term Loan Facility are due and payable on the maturity date of the Term Loan Facility, which is seven years from the Closing Date. Borrowings under the Revolving Credit Facility are available beginning on the Closing Date and, to the extent not previously paid, all then-outstanding amounts under the Revolving Credit Facility are due and payable on the maturity date of the Revolving Credit Facility, which is five years from the Closing Date.

At the option of the Company, borrowings under the Term Loan Facility and under the Revolving Credit Facility (subject to certain limitations) bear interest at either a base rate (as determined pursuant to the Credit Agreement) or at a Eurocurrency Rate (as defined in the Credit Agreement), plus the applicable margin as set forth therein from time to time. In the case of the Revolving Credit Facility, the applicable margin is based on the Company’s consolidated senior secured net leverage ratio (as defined in the Credit Agreement). All borrowings under the Term Loan Facility used to finance the Merger Consideration as described above initially bear interest at a Eurocurrency Rate applicable to Eurocurrency Loans (as defined in the Credit Agreement) denominated in U.S. Dollars. Beginning 53 days after the Closing Date, the applicable margin for the Term Loan Facility will be increased by 25 basis points every thirty days following the Closing Date until the earlier of (i) the Marketing Commencement Date (as defined in the Credit Agreement) or (ii) 113 days after the Closing Date.

The Company has agreed to secure all of its obligations under the Credit Agreement by granting a first priority lien on substantially all of its assets (subject to certain exceptions and limitations), and each of Stormtech, LLC, Advanced Drainage of Ohio, Inc. and Infiltrator Water Technologies, LLC (collectively the “Guarantors”) has agreed to guarantee the obligations of the Company under the Credit Agreement and to

~~secure the obligations thereunder by granting a first priority lien in substantially all of such Guarantor’s assets (subject to certain exceptions and limitations).~~

~~Repayment of Prudential Senior Notes -~~ On July 29, 2019, the Company repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $104.4 million under that certain Second Amended and Restated Private Shelf Agreement, dated as of June 22, 2017 (as amended the “Shelf Note Agreement”) of the Company’s Senior Notes (“Senior Notes”), by and among the Company, as issuer, the guarantors from time to time a party thereto, PGIM, Inc., as a purchaser and the other purchasers from time to time a party thereto (the “Shelf Noteholders”). The Company repaid the outstanding indebtedness under the Shelf Note Agreement using borrowings from the PNC Credit Agreement as in effect as of July 29, 2019. Concurrently with the repayment, the Shelf Noteholders authorized and directed PNC Bank, National Association, in its capacity as Collateral Agent (as defined in the Shelf Note Agreement) to release the security interests and liens securing the Shelf Note Agreement and the Shelf Note Agreement was terminated.

~~Repayment of PNC Credit Agreement -~~ On the Closing Date, using borrowings of the new Term Loan Facility the Company repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $239.2 million under the PNC Credit Agreement. Concurrently with the repayment, all security interests and liens held by the Collateral Agent (as defined in the PNC Credit Agreement) securing the PNC Credit Agreement were terminated and released and the PNC Credit Agreement was terminated.

Unless the context otherwise indicates or requires, as used in this Quarterly Report on Form 10-Q, the terms “we,” “our,” “us,” “ADS” and the “Company” refer to Advanced Drainage Systems, Inc. and its directly- and indirectly-owned subsidiaries as a combined entity, except where it is clear that the terms mean only Advanced Drainage Systems, Inc. exclusive of its subsidiaries.

Our fiscal year begins on April 1 and ends on March 31. Unless otherwise noted, references to “year” pertain to our fiscal year. For example, 2020 refers to fiscal 2020, which is the period from April 1, 2019 to March 31, 2020.

The following discussion and analysis of the financial condition and results of our operations should be read in conjunction with our Condensed Consolidated Financial Statements and related footnotes included elsewhere in this Quarterly Report on Form 10-Q and with the audited Consolidated Financial Statements included in our Fiscal 2019 Form 10-K, as filed with the Securities and Exchange Commission (the “SEC”) on May 30, 2019. In addition to historical condensed consolidated financial information, the following discussion contains forward-looking statements that reflect our plans, estimates and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. This discussion contains forward-looking statements that are based on the beliefs of our management, as well as assumptions made by, and information currently available to, our management. Our actual results could differ materially from those discussed in the forward-looking statements. For more information, see the section below entitled “Forward Looking Statements.”

We consolidate our joint ventures for purposes of GAAP, except for our South American Joint Venture.

We are the leading global manufacturer ~~of high performance thermoplastic corrugated pipe, providing a comprehensive suite~~ of water management products and ~~superior drainage~~ solutions for ~~use~~non-residential, residential, infrastructure and agricultural applications. With the acquisition of Infiltrator Water Technologies in the ~~underground~~second quarter of fiscal 2020, we are now a leading provider of plastic leach field chambers, septic tanks and accessories, for use primarily in residential applications.

Net sales increased $89.4 million or 22.0% to $495.9 million, as compared to $406.6 million in the prior year. Domestic pipe sales increased $32.0 million or 12.8% to $281.4 million. Allied & Other sales increased $12.5 million or 12.2% to $114.4 million. These increases were driven by strong performance in both the U.S. construction and ~~infrastructure marketplace. Our innovative products are used across a broad range of~~agriculture end ~~markets~~markets. International net sales decreased $7.5 million or 13.6% to $47.8 million, driven primarily by decreases in Canada and ~~applications, including non-residential, residential, agriculture and infrastructure applications. We have established a leading position in many of these end markets by leveraging our national~~Mexico sales. Infiltrator Water Technologies contributed an additional $64.9 million to net sales and distribution platform, our overall product breadth and scale and our manufacturing excellence. In the United States, our national footprint combined with our strong local presence and broad product offering make us the leader in an otherwise highly fragmented sector comprised of many smaller competitors. We believe the markets we serve in the United States represent approximately $11 billion of annual revenue opportunity. In addition, we believe the increasing acceptance of thermoplastic pipe products in international markets represents an attractive growth opportunity.quarter.

~~Our products are generally lighter, more durable, more cost effective and easier~~Gross profit increased $51.2 million or 53.6% to ~~install than comparable alternatives made with traditional materials. Following our entrance into the non-residential construction market with the introduction of N-12 corrugated polyethylene pipe~~$146.5 million as compared to $95.4 million in the ~~late 1980s, our pipe products have been displacing products made with traditional materials, such as reinforced concrete, corrugated steel and polyvinyl chloride (“PVC”), across~~prior year. The increase is primarily due to an ever expanding range of end markets. This has allowed us to consistently gain market share and achieve above-market growth throughout economic cycles. We expect to continue to drive conversion to our products from traditional materials as contractors, civil design engineers and municipal agencies increasingly acknowledge the superior physical attributes and compelling value proposition of our thermoplastic products. In addition, we believe that overall demand for our products will benefit as the regulatory environment continues to evolve.

~~Our broad product line includes HDPE pipe, PP~~increase in both pipe and ~~related water management products. Building on our core drainage businesses, we have aggressively pursued attractive ancillary~~allied product ~~categories such~~sales as ~~storm and septic chambers, PVC drainage structures, fittings and filters, and water quality filters and separators. We refer~~well as favorable material cost. Infiltrator Water Technologies contributed an additional $22.5 million to ~~these ancillary product categories~~gross profit in the quarter.

Adjusted EBITDA (Non-GAAP) increased $46.6 million or 65.2% to $118.2 million, as ~~Allied Products. Given~~compared to $71.5 million in the ~~scope~~prior year. The increase is primarily due to the factors mentioned above. As a percentage of ~~our overall~~net sales, ~~and distribution platform, we have been able~~Adjusted EBITDA was 23.8% as compared to ~~drive growth within our Allied Products and believe there are significant growth opportunities going forward.~~17.6% in the prior year.

~~Acquisition~~Net sales increased $115.2 million or 14.5% to $909.6 million, as compared to $794.4 million in the prior year. Domestic pipe sales increased $52.1 million or 10.6% to $543.6 million. Allied & Other sales increased $24.2 million or 12.0% to $226.6 million. These increases were driven by strong performance in both the U.S. construction and agriculture end markets. International net sales decreased $13.5 million or 13.4% to $87.1 million as compared to $100.6 million in the prior year, driven primarily by a decrease in Mexico sales. Infiltrator Water Technologies contributed an additional $64.9 million to net sales.

Gross profit decreased $110.7 million to $84.4 million due to the $168.6 million ESOP compensation expense described above. Excluding the one-time ESOP compensation, gross profit increased $57.9 million or 29.7%, primarily due to an increase in both pipe and allied product sales as well as favorable pricing and material cost. This was partially offset by unfavorable inventory absorption cost due to retention of key manufacturing employees during the fourth quarter of fiscal 2019 despite lower production volume. Infiltrator Water Technologies contributed an additional $22.5 million to gross profit.

~~On July 31, 2019,~~Adjusted EBITDA (Non-GAAP) increased $51.8 million or 35.3% to $198.5 million, as compared to $146.7 million in the ~~Company, Ocean Sub, Inc.,~~prior year, primarily as a ~~wholly-owned subsidiary~~result of the ~~Company (the “Merger Sub”), IWT and 2461461 Ontario Limited, entered into Merger Agreement, pursuant~~factors mentioned above. As a percentage of net sales, Adjusted EBITDA was 21.8% as compared to which Merger Sub merged with and into Infiltrator, with Infiltrator continuing as the surviving corporation and a wholly-owned subsidiary of the Company. The closing of the Merger took place simultaneously upon the Closing Date.

The Company paid aggregate purchase price of approximately $1,080.0 million billion in cash in connection with the Merger, net of cash acquired of $48.5 million, subject to certain post-closing purchase price adjustments as described18.5% in the Merger Agreement. Each holder of vested and unexercised Infiltrator stock options outstanding as of the Closing Date received cash in an amount equal to per share cash portion of Merger Consideration in excess of the applicable exercise price per share of such options, subject to adjustment. The Company financed the Merger Consideration with borrowings under the Company’s new credit agreement, which replaced the Company’s existing PNC Credit Agreement and Senior Notes, as further described below.

The Merger Agreement contains customary representations, warranties and covenants from Infiltrator, Merger Sub and the Company, which representations and warranties do not survive the consummation of the Merger. The Company has obtained a representation and warranty insurance policy that will provide a source of recourse for breaches of the representations and warranties of Infiltrator contained in the Merger Agreement, subject to a retention amount, exclusions, policy limits and certain other terms and conditions.

On July 31, 2019, the Company entered into the Credit Agreement by and among the Company, as borrower, Barclays Bank PLC, as administrative agent, the several lenders from time to time party thereto, Barclays Bank PLC and Morgan Stanley Senior Funding, Inc., as joint lead arrangers and joint bookrunners

The Credit Agreement provides for the Term Loan Facility in an initial aggregate principal amount of $1.3 billion, the Revolving Facility in an initial aggregate principal amount of up to $350 million, the L/C Facility in the initial aggregate available amount of up to $50 million, as a sublimit of such Revolving Facility and a swing line sub-facility in the aggregate available amount of up to $50 million, as a sublimit of the Revolving Facility.

On the Closing Date, the Company borrowed under the Credit Agreement which was used to (i) finance the Merger Consideration paid in connection with the closing of the Merger, (ii) and repay the total outstanding amount as of the Closing Date under the Company’s PNC Credit Agreement, (iii) repay outstanding amounts of existing indebtedness incurred by IWT under its outstanding credit facility in effect prior ~~to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Credit Agreement.~~

Additional information with regard to the Credit Facility and its terms is set forth in the Company’s Current Report on Form 8-K filed on August 1, 2019 and as set forth below under “Liquidity and Capital Resources.”

On July 29, 2019, the Company repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $104.4 million under the Shelf Note Agreement, dated as of June 22, 2017, by and among the Company, as issuer, the guarantors from time to time a party thereto, PGIM, Inc., as a purchaser and the other purchasers from time to time a party thereto. The Company repaid the outstanding indebtedness under the Shelf Note Agreement using borrowings from the PNC Credit Agreement with PNC Bank, National Association, as administrative agent, and various financial institutions party thereto as in effect as of July 29, 2019. Concurrently with the repayment, all security interests and liens securing the Shelf Note Agreement were terminated and released, and the Shelf Note Agreement was terminated. Additional information with regard to the Credit Facility and its terms is set forth in theyear.

~~Company’s Current Report on Form 8-K filed on August 1, 2019 and as set forth below under “— Liquidity and Capital Resources.”~~Results of Operations

~~On the Closing Date, using borrowings~~Comparison of the new Term Loan Facility, the Company repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $239.2 under the PNC Credit Agreement. Concurrently with the repayment, all security interests and liens securing the PNC Credit Agreement were terminated and released and the PNC Credit Agreement was terminated.

Three ~~months~~Months ended ~~June~~September 30, 2019 ~~Compared with three months~~to the Three Months ended ~~June~~September 30, 2018

The following table summarizes our operating results as a percentage of net sales that have been derived from our Condensed Consolidated Financial Statements for the three months ended ~~June~~September 30, 2019 and 2018. We believe this presentation is useful to investors in comparing historical results.

	For the Three Months Ended June 30,						For the Three Months Ended September 30,
	2019			2018			2019					2018
Consolidated Statements of Operations data:							(In thousands)					(In thousands)
Net sales		100.0	%		100.0	%	$	495,905		100.0	%	$	406,555	100.0	%
Cost of goods sold		74.3			74.3			349,381		70.5			311,182	76.5
Cost of goods sold - ESOP special dividend compensation		40.8			—
Gross profit		(15.0	)		25.7			146,524		29.5			95,373	23.5
Selling		6.4			6.2			29,971		6.0			24,731	6.1
General and administrative		7.6			5.5			48,030		9.7			21,584	5.3
Selling, general and administrative - ESOP special dividend compensation		18.9			—
Loss on disposal of assets and costs from exit and disposal activities		0.2			0.3			2,004		0.4			324	0.1
Intangible amortization		0.4			0.5			9,300		1.9			1,985	0.5
(Loss) income from operations		(48.4	)		13.2
Income (loss) from operations								57,219		11.5			46,749	11.5
Interest expense		1.3			1.0			52,332		10.6			4,531	1.1
Derivative gains and other income, net		—			(0.2	)
(Loss) income before income taxes		(49.7	)		12.4
Income tax expense		5.4			3.7
Derivative loss (gains) and other expense (income), net								175		—			94	—
Income (loss) before income taxes								4,712		1.0			42,124	10.4
Income tax (benefit) expense								(3,547	)	(0.7	)		12,194	3.0
Equity in net (income) loss of unconsolidated affiliates		(0.1	)		—			(203	)	—			558	0.1
Net (loss) income		(55.0	)		8.7
Less: net (loss) income attributable to noncontrolling interest		(0.3	)		0.4
Net (loss) income attributable to ADS		(54.7	%)		8.3	%
Net income (loss)								8,462		1.7			29,372	7.2
Less: net income (loss) attributable to noncontrolling interest								873		0.2			702	0.2
Net income (loss) attributable to ADS							$	7,589		1.5	%	$	28,670	7.1	%

Net sales - 27Net sales increased by $89.4 million, of which $52.7 million represented sales from Infiltrator Water Technologies. Net sales excluding Infiltrator Water Technologies are referred to as organic sales (Non-GAAP).

~~Net sales -~~ ~~Net sales increased over the comparable period in fiscal 2019.~~

Domestic net sales increased in the three months ended June 30, 2019, over the comparable period in the previous fiscal year. Our domestic pipe sales increase was primarily attributable to a $18.3 million increase in pipe volume and price increases and changes in product mix of $1.2 million. Allied Product sales increased by $11.8 million, or 11.7%.

International net sales decreased $6.0 million, or 13.3%, in the three months ended June 30, 2019 over the comparable period in the previous fiscal year. Our international pipe sales decreased by $5.2 million, or 15.0%, which was primarily attributable to volume decreases. In addition, Allied Product sales decreased $0.9 million.

Cost of goods sold and Gross profit - Cost of goods sold increased by ~~$19.1~~$38.2 million, or ~~6.6%~~12.3%, ~~Cost of goods sold - ESOP special dividend compensation increased by $168.6 million~~ and gross profit ~~decreased~~increased by ~~$161.8~~$51.2 million, or ~~162.4%~~53.6%, in the three months ended ~~June~~September 30, 2019 over the comparable period in the previous ~~fiscal~~ year. Gross profit excluding Infiltrator Water Technologies, referred to as organic gross profit (Non-GAAP), increased 31.1%.

The decrease in domestic gross profit of $161.3 million, or 176.4%, was primarily due to the ESOP special dividend compensation expense from the special dividend of $168.6 million allocated to Cost of goods sold. The decrease in gross profit due to the ESOP special dividend compensation expense was partially offset by the gross profit impact of the increased net sales discussed above. The increase in net sales was partially offset by increased labor and overhead costs of $18.7 million and increased material and transportation costs of $5.9 million.

International gross profit decreased $0.5 million, or 6.6%, in the three months ended June 30, 2019 compared to the same period in the previous fiscal year. The decrease is primarily due to the gross profit impact of the decreased net sales discussed above.

Selling expenses - As a percentage of net sales, selling expenses were relatively flat at ~~6.4%~~6.0% in the three months ended ~~June~~September 30, 2019 compared to ~~6.2%~~6.1% in three months ended ~~June~~September 30, 2018.

General and administrative expenses - General and administrative expenses for the three months ended ~~June~~September 30, 2019 increased ~~$10.1~~$26.4 million from the prior year period. The increase was primarily due to an increase of ~~$4.0~~$16.5 million in transaction costs ~~$2.2~~primarily related to the Acquisition, $4.8 million ~~of strategic~~increase in salary, bonus and stock-based compensation expenses to support growth and ~~operational improvement initiatives expenses, $1.7~~$3.3 million of ~~expenses related to our investigation into our consolidated joint venture and partially offset by $1.2 million of insurance proceeds received~~ in ~~fiscal 2019 that did not recur.~~

~~Selling,~~ general and administrative expenses ~~- ESOP special dividend compensation~~ - In the first quarter of fiscal 2020, we recorded $78.1 million of ESOP compensation expense due to the special dividend. See “Note 8. Net Income Per Share and Stockholders’ Equity” for additional information on the special dividend.at Infiltrator Water Technologies.

Loss on disposal of assets and costs from exit and disposal activities - In the three months ended ~~June~~September 30, 2019, we recorded a loss on the ~~sale~~disposal of assets and costs from exit and disposal activities of approximately $2.0 million compared to a $0.3 million loss on the disposal of property, plant and equipment from the prior year period. The increase is primarily due to $1.6 million of ~~approximately $0.7 million.~~Acquisition related severance costs incurred at Infiltrator Water Technologies. See “Note 2. Loss on Disposal of Assets and Costs from Exit and Disposal Activities” for additional discussion.

Intangible amortization - Intangible amortization ~~remained relatively flat~~increased as a percentage of net ~~sales.~~sales primarily due the addition of intangible assets related to the Acquisition.

Interest expense - Interest expense increased ~~$1.5~~$47.8 million in the three months ended ~~June~~September 30, 2019 compared to the same period in the previous fiscal ~~year,~~year. The increase was primarily due to ~~a $1.8~~$33.2 million ~~unrealized loss on~~of the write-off of deferred financing costs and $4.2 million prepayment penalty related to the extinguishment of debt instruments. The remainder of the increase was due to increased debt levels and changes in interest ~~rate swap.~~rates. See “Note 11. Debt” for additional discussion.

Derivative ~~gains~~loss (gains) and other ~~income,~~expense (income), net - Derivative ~~gains~~loss (gains) and other (expense) income decreased by ~~$0.7~~$0.1 million for the three months ended ~~June~~September 30, 2019 compared to the same period in the previous fiscal year.

Income tax (benefit) expense - For the three months ended September 30, 2019 and 2018, the effective tax rates were (75.3%) and 28.9%, respectively. The effective tax rate for the three months ended September 30, 2019 and September 30, 2018 differed primarily due to the Acquisition. See “Note 13. Income Taxes” for additional information.

Equity in net (income) loss of unconsolidated affiliates - Equity in net (income) loss of unconsolidated affiliates represents our proportionate share of income or loss attributed to our unconsolidated joint venture in which we have significant influence, but not control, over operations. The Equity in net (income) loss of unconsolidated affiliates decreased by $0.8 million for the three months ended September 30, 2019 as compared to the same period in the previous fiscal year. In fiscal 2019, our proportionate share of income or loss in BaySaver was included in equity in net (income) loss of unconsolidated affiliates.

Net income (loss) attributable to noncontrolling interest - Net income attributable to noncontrolling interest increased by $0.2 million for the three months ended September 30, 2019 to a net income of $0.9 million compared to a net income of $0.7 million in the same period in the previous fiscal year.

Comparison of the Six Months ended September 30, 2019 to the Six Months ended September 30, 2018

The following table summarizes our operating results as a percentage of net sales that have been derived from our Condensed Consolidated Financial Statements for the six months ended September 30, 2019 and 2018. We believe this presentation is useful to investors in comparing historical results.

Net sales - Net sales increased by $115.2 million, of which $52.7 million represented sales from Infiltrator Water Technologies. Net sales excluding Infiltrator Water Technologies are referred to as organic sales (Non-GAAP).

Cost of goods sold and Gross profit - Cost of goods sold increased by $57.3 million, or 9.6%, and gross profit decreased by $110.7 million, or 56.7% in the six months ended September 30, 2019 over the comparable period in the previous year. The decrease in gross profit was primarily due to the ESOP special dividend compensation expense from the special dividend of $168.6 million allocated to Cost of goods sold. Gross profit excluding Infiltrator Water Technologies, referred to as organic gross profit (Non-GAAP), increased 18.7%.

Selling expenses - As a percentage of net sales, selling expenses remained flat at 6.2% in the six months ended September 30, 2019 and 2018.

General and administrative expenses - General and administrative expenses for the six months ended September 30, 2019 increased $36.5 million from the prior year period. The increase was primarily due to an increase of $20.5 million in transaction costs primarily related to the Acquisition, $6.6 million increase in salary, bonus and stock-based compensation expenses to support growth, $3.3 million in general and administrative expenses at Infiltrator Water Technologies, $2.9 million of strategic growth and operational improvement initiatives expenses and $2.9 million of expenses related to our investigation into our consolidated joint venture.

Loss on disposal of assets and costs from exit and disposal activities - In the six months ended September 30, 2019, we recorded $2.7 million of expense related to loss on disposal of assets and costs from exit and disposal activities compared to $1.4 million in the six months ended September 30, 2018. The increase is primarily due to $1.6 million of Acquisition related severance costs. See “Note 2. Loss on Disposal of Assets and Costs from Exit and Disposal Activities” for additional discussion.

Intangible amortization - Intangible amortization increased as a percentage of net sales primarily due the addition of intangible assets related to the Acquisition.

Interest expense - Interest expense increased $49.3 million in the six months ended September 30, 2019 compared to the same period in the previous fiscal year. The increase was primarily due to $33.2 million of the write-off of deferred financing costs and $4.2 million prepayment penalty from the extinguishment of debt instruments. The remainder of the increase was due to increased debt levels and changes in interest rates. See “Note 11. Debt” for additional discussion.

Derivative losses (gains) and other expense (income), net – Derivative loss (gains) and other (expense) income, net decreased by $0.8 million for the six months ended September 30, 2019 compared to the same period in the previous fiscal year. The decrease is primarily due to changes in realized ~~and unrealized losses on~~ diesel fuel ~~option collar contracts in fiscal 2019.~~collars.

Income tax expense -– For the ~~three~~six months ended ~~June~~September 30, 2019 and 2018, the Company had effective tax rates ~~were (10.9%)~~of (9.4)% and ~~29.7%~~29.4%, respectively. The change in the effective tax rate was primarily due to a discrete income tax event related to stock appreciation from the additional ESOP shares ~~allocated.~~allocated and the Acquisition. See “Note ~~12.~~13. Income Taxes” for additional information.

Equity in net (income) loss of unconsolidated affiliates - Equity in net (income) loss of unconsolidated affiliates represents our proportionate share of income or loss attributed to our unconsolidated joint venture in which we have significant influence, but not control, over operations. The Equity in net (income) loss of unconsolidated affiliates increased ~~by $0.5~~to a $0.6 million income for the ~~three~~six months ended ~~June~~September 30, 2019 ~~as compared to~~from a $0.7 million loss for the ~~same period~~six months ended September 30, 2018. In fiscal 2019, our proportionate share of income or loss in ~~the previous fiscal year.~~BaySaver was included in equity in net (income) loss of unconsolidated affiliates.

Net income (loss) ~~income~~ attributable to noncontrolling interest - Net income (loss) ~~income~~ attributable to noncontrolling interest decreased ~~by $2.5~~from net income of $2.1 million for the ~~three~~six months ended ~~June~~September 30, ~~2019~~2018 to a net loss of ~~$1.1~~$0.2 million ~~compared~~for the six months ended September 30, 2019. The change is primarily attributable to ~~a net income of $1.4 million~~fluctuations in the ~~same period in the previous fiscal year. The decrease was primarily due to net loss at~~profitability of ADS ~~Mexicana and due to the acquisition of the noncontrolling interest in BaySaver.~~Mexicana.

~~In addition to financial results reported in accordance with GAAP, we have provided the following non-GAAP financial measures:~~ Adjusted EBITDA and Free Cash Flow. These non-GAAP financial measures are used in addition to and in conjunction with results presented in accordance with GAAP. However, these measures are not intended to be a substitute for those reported in accordance with GAAP. These measures may be different from non-GAAP financial measures used by other companies, even when similar terms are used to identify such measures.

Adjusted EBITDA Margin - Adjusted EBITDA aand Adjusted EBITDA Margin, which are non-GAAP financial ~~measure,~~measures, has been presented in this Quarterly Report on Form 10-Q as a supplemental ~~measure~~measures of financial performance that isare not required by, or presented in accordance with GAAP. We calculate ~~adjusted~~Adjusted EBITDA as net income (loss) before interest, income taxes, depreciation and amortization, stock-based compensation expense, non-cash charges and certain other expenses.

Adjusted EBITDA and Adjusted EBITDA Margin are included in this ~~Quarterly Report on~~ Form 10-Q because ~~it is a~~they are key ~~metric~~metrics used by management and our ~~Board~~board of ~~Directors~~directors to assess our consolidated financial performance. Adjusted EBITDA isand Adjusted EBITDA Margin are frequently used by analysts, investors and other interested parties to evaluate companies in our industry. In addition to covenant compliance and executive performance evaluations, we use ~~adjusted~~Adjusted EBITDA and Adjusted EBITDA Margin to supplement GAAP measures of performance to evaluate the

effectiveness of our consolidated business strategies, to make budgeting decisions and to compare our performance against that of other peer companies using similar measures. We use Adjusted EBITDA Margin to evaluate our ability to generate profitable sales.

Adjusted EBITDA isand Adjusted EBITDA Margin are not a GAAP ~~measure~~measures of our financial performance and should not be considered as ~~an alternative~~alternatives to net ~~(loss)~~ income as ~~a measure~~measures of financial performance or cash flows from operations or any other performance measure derived in accordance with GAAP, and it should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items. Adjusted EBITDA ~~contains~~and Adjusted EBITDA Margin contain certain other limitations, including the failure to reflect our cash expenditures, cash requirements for working capital needs, ~~and~~ cash costs to replace assets being depreciated and ~~amortized.~~amortized and interest expense, or the cash requirements necessary to service interest on principal payments on our indebtedness. In evaluating ~~adjusted~~Adjusted EBITDA and Adjusted EBITDA Margin, you should be aware that in the future we will incur expenses that are the same as or similar to some of the adjustments in this presentation, such as stock-based compensation expense, derivative fair value adjustments, and foreign currency transaction losses. ~~Our presentation of adjusted EBITDA should not be construed to imply that our future results will be unaffected by any such adjustments.~~ Management compensates for these limitations by relying on our GAAP results in addition to using ~~adjusted~~Adjusted EBITDA ~~as a supplemental measurement.~~and Adjusted EBITDA Margin supplementally. Our ~~measure~~measures of ~~adjusted~~Adjusted EBITDA isand Adjusted EBITDA Margin are not necessarily comparable to other similarly titled captions of other companies due to different methods of calculation.

The following table presents a reconciliation of Adjusted EBITDA to Net income, the most comparable GAAP measure, for each of the periods indicated.

	Three Months Ended June 30,						Three Months Ended September 30,						Six Months Ended September 30,
	2019			2018			2019			2018			2019			2018
	(In thousands)						(In thousands)						(In thousands)
Net (loss) income	$	(227,451	)	$	33,651
Net income (loss)							$	8,462		$	29,372		$	(218,989	)	$	63,023
Depreciation and amortization		16,694			17,827			26,566			17,536			43,260			35,363
Interest expense		5,264			3,802			52,332			4,531			57,596			8,333
Income tax expense		22,370			14,284
Income tax (benefit) expense								(3,547	)		12,194			18,823			26,478
EBITDA		(183,123	)		69,564			83,813			63,633			(99,310	)		133,197
Loss on disposal of assets and costs from exit and disposal activities		707			1,104			2,004			324			2,711			1,428
ESOP and stock-based compensation expense		7,425			5,580			8,657			6,180			16,082			11,760
ESOP special dividend compensation^(a)		246,752			—			—			—			246,752			—
Transaction costs^(b)		4,245			256			16,590			65			20,835			321
Inventory step up related to Infiltrator Water Technologies acquisition								5,773			—			5,773			—
Strategic growth and operational improvement initiatives^(c)		2,195			—			701			—			2,896			—
Other adjustments^(d)		2,095			(1,361	)		626			1,319			2,721			(42	)
Adjusted EBITDA	$	80,296		$	75,143		$	118,164		$	71,521		$	198,460		$	146,664
Adjusted EBITDA Margin								23.8	%		17.6	%		21.8	%		18.5	%

~~Free Cash Flow~~ - Free cash flow is a non-GAAP financial measure that comprises cash flow from operations less capital expenditures. Free cash flow is a measure used by management and our Board of Directors to assess our ability to generate cash. Accordingly, free cash flow has been presented in this Quarterly Report on Form 10-Q as a supplemental measure of liquidity that is not required by, or presented in accordance with GAAP, because management believes that free cash flow provides useful information to investors and others in understanding and evaluating our ability to generate cash flow from operations after capital expenditures.

Free cash flow is not a GAAP measure of our liquidity and should not be considered as an alternative to cash flow from operating activities as a measure of liquidity or any other liquidity measure derived in accordance with GAAP. Our measure of free cash flow is not necessarily comparable to other similarly titled captions of other companies due to different methods of calculation.

The following table presents ~~a reconciliation of free cash flow~~our Adjusted EBITDA for the Company prior to ~~Cash flow from operating activities,~~ the ~~most comparable GAAP measure, for each~~Acquisition (“Legacy ADS”), which consists of the ~~periods indicated.~~combination of the Segment Adjusted Gross Profit for Pipe, Allied Products & Other, and International plus the portion of corporate and selling expenses which impacts Adjusted EBITDA and Infiltrator Water Technologies prior to the Acquisition (“Legacy Infiltrator Water Technologies”), which consists of the combination of the Segment adjusted gross profit for Infiltrator Water Technologies plus the portion of corporate and selling expenses which impacts Adjusted EBITDA.

Our primary liquidity requirements are working capital, capital expenditures, debt service, and dividend payments for our convertible preferred stock and common stock. We have historically funded, and expect to continue to fund, our operations primarily through internally generated cash flow, debt financings, equity issuance and ~~capital~~finance and operating leases. From time to time, we may explore additional financing methods and other means to raise capital. There can be no assurance that any additional financing will be available to us on acceptable terms or at all.

As of ~~June~~September 30, 2019, we had ~~$6.9~~$13.6 million in cash that was held by our foreign subsidiaries. We continue to evaluate our strategy regarding foreign cash, but our earnings in foreign subsidiaries still remain indefinitely reinvested.

As further described below, onduring the second fiscal quarter ended September 30, 2019, the Company and certain of its subsidiaries entered into a series of transactions that resulted in the refinancing of the existing external borrowings of the Company with the new financings, as well as the completion of an underwritten public offering of common stock. These financing activities were effected in connection with the completion of the Acquisition of Infiltrator Water Technologies.

On July 29, 2019, wethe Company repaid in full all of ~~our~~its outstanding indebtedness and other obligations totaling $104.4 million under ~~our~~the Shelf Note Agreement by using borrowings from the Company’s existing credit facility under the PNC Credit Agreement. Concurrently with the repayment, all security interests and liens securing the Shelf Note Agreement were terminated and released, and the Shelf Note Agreement was terminated.

On July 31, 2019, the Company entered into the Base Credit Agreement with Barclays Bank PLC, as administrative agent and the several lenders from time to time party thereto, pursuant to which the Company borrowed under the Credit Agreement which borrowings were used to (i) finance the Merger Consideration for the acquisition of Infiltrator Water Technologies, (ii) repay the total outstanding amount under the existing PNC Credit Agreement, (iii) repay outstanding amounts of existing indebtedness incurred by Infiltrator Water Technologies under its outstanding credit facility in effect prior to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Credit Agreement.

Thereafter, on the Acquisition Closing Date, using borrowings of the ~~Term~~Bridge Loan Facility and Bridge Revolving Facility weunder the Bridge Credit Facility, the Company repaid in full all of ~~our~~its indebtedness and other obligations totaling $239.2 million under the PNC Credit Agreement. Concurrently with the repayment, all security interests and liens securing the PNC Credit Agreement were terminated and released and the PNC Credit Agreement was terminated.

On ~~July 31,~~September 10, 2019, the Company closed the underwritten public offering of common stock (the “Common Stock Offering”) and received net proceeds of approximately $293.6 million after deducting underwriting discounts and offering expenses, the proceeds of which were used in part to repay outstanding borrowings under the Bridge Credit Facility. On September 23, 2019, the Company issued $350.0 million aggregate principal amount of its Senior Notes, the proceeds of which were used in part to repay outstanding borrowings under the Bridge Credit Facility.

On September 24, 2019, the Company entered into the Senior Secured Credit ~~Agreement~~Facility that amended certain pricing and related terms under the Base Credit Agreement. In connection with ~~Barclays Bank PLC, as administrative agent and~~ the ~~several lenders from time to time party thereto, pursuant to which~~Senior Secured Credit Facility, the Company ~~borrowed~~also prepaid outstanding borrowings under the Term Loan Facility of the Senior Secured Credit ~~Agreement which was used to (i) finance the Merger Consideration for the acquisition~~Facility in an aggregate principal amount of ~~Infiltrator, (ii) repay the total outstanding amount under the existing PNC Credit Agreement, (iii) repay outstanding amounts of existing~~

indebtedness incurred by IWT under its outstanding credit facility in effect prior to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Credit Agreement.$600 million.

As of ~~June~~September 30, 2019, we had ~~$469.8~~$395.7 million in liquidity, including ~~$9.4~~$54.2 million of cash, ~~$385.4~~$341.5 million in borrowings available under our ~~existing PNC~~Revolving Credit Agreement, net of ~~$8.4~~$8.5 million of outstanding letters of credit, and $75.0 million under the Senior Notes, described below. All outstanding indebtedness under these borrowings were repaid in full in connection with the establishment of the new Credit Agreement, as further described below.credit. We believe that our cash on hand, together with the availability of borrowings under our new Credit ~~Facility~~Agreement and other financing arrangements and cash generated from operations, will be sufficient to meet our working capital requirements, anticipated capital expenditures, scheduled principal and interest payments on our indebtedness and the dividend payment requirement for our convertible preferred stock for at least the next twelve months.

Working Capital - Working capital ~~decreased~~increased to ~~$236.7~~$322.9 million as of ~~June~~September 30, 2019, from $260.2 million as of March 31, 2019. The ~~decrease~~increase in working capital is primarily due to the addition of Infiltrator Water Technologies working capital of $47.4 million. The increase in working capital, excluding the impact of Infiltrator Water Technologies, is due to an increase in cash and accounts receivable of $45.3 million and $42.3 million, respectively, and a decrease in current maturities of debt obligations of $19.7 million. These increases were partially offset by a decrease in Legacy ADS inventory of ~~$34.3~~$55.8 million and an increase ~~of $27.2 million~~ in accounts payable and other accrued liabilities ~~and an increase in accrued income taxes~~ of ~~$10.9~~$38.7 million. ~~These increases were partially offset by an increase in accounts receivable~~

Operating Cash Flows -Cash flows provided by operating activities for the ~~three~~six months ended ~~June~~September 30, 2019 was ~~$62.8~~$171.7 million as compared with cash provided by operating activities of ~~$9.8~~$58.2 million for the ~~three~~six months ended ~~June~~September 30, 2018. Cash flows from operating activities during the ~~three~~six months ended ~~June~~September 30, 2019 was primarily impacted by changes in working ~~capital.~~capital, including accounts receivable, inventory and current liabilities.

Investing Cash Flows - During the ~~three~~six months ended ~~June~~September 30, 2019 and 2018, cash used in investing activities was ~~$9.7~~$1,114.4 million and ~~$7.0~~$18.9 million, respectively. The increase in cash used for investing activities was primarily due to ~~increases~~the Acquisition of Infiltrator Water Technologies, net of cash acquired. Capital expenditures during the six months ended September 30, 2019 increased by $6.3 million compared to the same period in ~~capital expenditures and purchases of property, plant and equipment through financing.~~fiscal 2019. Our capital expenditures for the ~~three~~six months ended ~~June~~September 30, 2019 were used primarily for new equipment and facility expansions and upgrades.

Financing Cash Flows - During the ~~three~~six months ended ~~June~~September 30, 2019, cash ~~used in~~provided by financing activities was ~~$52.6~~$988.1 million due to the new Term Loan Facility, Senior Notes and common stock offering. These cash inflows were offset by the repayment of the PNC Credit Agreement and Prudential Senior Notes, the special and quarterly dividend ~~payment~~payments of ~~$69.6~~$76.3 million and payments on our finance lease obligations of ~~$6.0~~$12.3 million. ~~These uses were partially offset by $21.8 million of net borrowings on our PNC Credit Agreement.~~ The table below summarizes the cash flows from the Acquisition, and the related debt and equity transactions.

During the ~~three~~six months ended ~~June~~September 30, 2018, cash used in financing activities was ~~$1.6~~$39.1 million due to payments on the Prudential Senior notes, dividends paid and payments on our finance lease obligations offset by net borrowings on our PNC Credit Agreement.

Free Cash Flow and Free Cash Flow Conversion - Free cash flow is a non-GAAP financial measure that comprises cash flow from operations less capital expenditures. Free cash flow and free cash flow conversion are measures used by management and our Board of Directors to assess our ability to generate cash. Free cash flow conversion is a non-GAAP financial measure that comprises free cash flow divided by cash flow from operations. Accordingly, free cash flow and free cash flow conversion have been presented in this Quarterly Report on Form 10-Q as supplemental measures of liquidity that is not required by, or presented in accordance with GAAP, because management believes that free cash flow and free cash flow conversion provide useful information to investors and others in understanding and evaluating our ability to generate cash flow from operations after capital expenditures.

Free cash flow and free cash flow conversion are not GAAP measures of our liquidity and should not be considered as an alternative to cash flow from operating activities as a measure of liquidity or any other liquidity measure derived in accordance with GAAP. Our measures of free cash flow and free cash flow conversion are not necessarily comparable to other similarly titled captions of other companies due to different methods of calculation.

The following table presents a reconciliation of free cash flow and free cash flow conversion to Cash flow from operating activities, the most comparable GAAP measure, for each of the periods indicated.

Capital expenditures totaled ~~$9.7~~$25.6 million and ~~$6.9~~$19.3 million for the ~~three~~six months ended ~~June~~September 30, 2019 and 2018, respectively. Our capital expenditures for the ~~three~~six months ended ~~June~~September 30, 2019 were used primarily to support facility expansions, equipment replacements, our recycled resin initiatives and technology.

We currently anticipate that we will make capital expenditures of approximately ~~$55~~$85 to ~~$65~~$100 million in fiscal year 2020. Such capital expenditures are expected to be financed using funds generated by operations. As of ~~June~~September 30, 2019, there were no material contractual obligations or commitments related to these planned capital ~~expenditures.~~expenditures, except as disclosed in “Note 12. Commitments and Contingencies.”

The Company established the Advanced Drainage Systems, Inc. ESOP (the “ESOP” or the “Plan”) effective April 1, 1993 to enable eligible employees to acquire stock ownership in ADS in the form of redeemable convertible preferred shares. The Plan was funded by an existing tax-qualified profit-sharing retirement plan, as well as a 30-year term loan from ADS. Within 30 days following the repayment of the ESOP loan, which will occur no later than March 2023, the ESOP committee can direct the shares of redeemable convertible preferred stock owned by the ESOP to be converted into shares of the Company’s common stock.

The Company is obligated to make contributions to the Plan, which, when aggregated with the Plan’s dividends, equal the amount necessary to enable the Plan to make its regularly scheduled payments of principal and interest due on its term loan to ADS. Compensation expense is recognized based upon the average annual fair value of the shares during the period which ADS receives payments on the term loan, and the number of ESOP shares allocated to participant accounts.

As disclosed in “Note 16. Employee Benefit Plans” to the Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of our Fiscal 2019 Form 10-K, redeemable convertible preferred stock can convert to common stock upon retirement, disability, death, or vested terminations over the life of the Plan. As stated above, within 30 days following the repayment of the ESOP loan, all redeemable convertible preferred stock will be converted to common stock, which will be no later than March 2023.

The ESOP’s conversion of redeemable convertible preferred stock into common stock will have a meaningful impact on the Company’s net income, net income per share and common shares outstanding. The outstanding shares of common stock would be ~~30%~~29% greater after conversion.

Impact on Net Income - Following the repayment of the ESOP loan discussed above, the Company will no longer be required to apply the two-class method to determine Net income per share. In addition, the Company would not be required to recognize the fair value of ESOP deferred compensation attributable to the shares of redeemable convertible preferred shares allocated.

The impact of the ESOP on net income includes the fair value of ESOP deferred compensation attributable to the shares of redeemable convertible preferred stock allocated to employee ESOP accounts during the applicable period, which is a non-cash charge to our earnings and not deductible for income tax purposes.

	Three Months Ended June 30,					Three Months Ended September 30,				Six Months Ended September 30,
	2019			2018		2019		2018		2019			2018
	(In thousands)					(In thousands)				(In thousands)
Net (loss) income attributable to ADS	$	(226,356	)	$	32,280
Net income (loss) attributable to ADS						$	7,589	$	28,670	$	(218,767	)	$	60,950
ESOP special dividend compensation		246,752			—		—		—		246,752			—
ESOP deferred stock-based compensation		5,584			4,021		5,486		4,368		11,070			8,389

Impact on Common Stock Outstanding - The repayment of the ESOP loan and related conversion of redeemable convertible preferred shares will have an impact on the number of common shares outstanding. As shares are converted, the number of common shares outstanding will increase.

	Three Months Ended June 30,				Three Months Ended September 30,				Six Months Ended September 30,
	2019		2018		2019		2018		2019		2018
	(Shares in millions)				(Shares in millions)				(Shares in millions)
Weighted average common shares outstanding		57.6		56.6		60.2		56.9		58.9		56.8
Conversion of redeemable convertible shares		17.5		17.9		17.2		17.7		17.3		17.8

~~Secured Bank~~PNC Term Loans - On June 22, 2017, we entered into the PNC Credit Agreement, which amends and restates the original agreement dated as of June 12, 2013, ~~to provide~~which provided us with a $550 million revolving credit facility, which is more fully described in our Fiscal 2019 Form 10-K. O

Asn the Closing Date, using borrowings of ~~June 30, 2019,~~ the ~~outstanding principal drawn on~~new Term Loan Facility the Company repaid in full all of its and its subsidiaries indebtedness and other obligations totaling $239.2 million under the PNC Credit Agreement. Concurrently with the repayment, all security interests and liens held by the Collateral Agent (as defined in the PNC Credit Agreement) securing the PNC Credit Agreement were terminated and released and the PNC Credit Agreement was $156.2 million, with $385.4 million available to be drawn on the U.S. facility, net of $8.4 million of outstanding letters of credit. All outstanding indebtedness under the PNC Credit Agreement was repaid in full as of July 30, 2019 in connection with the establishment of the new Senior Secured Credit Facilities with Barclays Bank PLC, as further described below.terminated.

ADS Mexicana Revolving Credit Facility - The Company and ADS Mexicana entered into an Intercompany Revolving Credit Promissory Note (the “Intercompany Note”) with a capacity of $12.0 million on June 22, 2018. The Intercompany Note matures on June 22, 2022. The Intercompany Note indemnifies the ADS Mexicana joint

venture partner for 49% of any unpaid borrowing. The interest rates under the Intercompany Note are determined by certain base rates or LIBOR rates plus an applicable margin based on the Leverage Ratio. As of ~~June~~September 30, 2019, there were no borrowings under the Intercompany Note.

~~Fiscal 2019 Amendment to the Secured Bank Term Loans~~ - On July 9, 2018, the Company amended the PNC Credit Agreement and the Shelf Note Agreement to amend the definition of Consolidated EBITDA and changed the timing of the quarterly rate adjustments. In addition, the amendment to the PNC Credit Agreement clarified the process of a transition to replace LIBOR which is being phased out.

Prudential Senior Notes - On June 22, 2017, we entered into the Shelf Note Agreement to provide for the issuance of secured senior notes to the Shelf Note Lenders from time to time in the aggregate principal amount of up to $175 million, which is more fully described in our Fiscal 2019 Form 10-K. AsOn July 29, 2019, the Company repaid in full all of ~~June 30, 2019, we have $75~~its and its subsidiaries indebtedness and other obligations totaling $104.4 million ~~available for issuance of senior notes~~ under the Shelf Note ~~Agreement. At June 30, 2019,~~Agreement using borrowings from the ~~outstanding principal balance on these notes was $100 million. All outstanding indebtedness under~~PNC Credit Agreement as in effect as of July 29, 2019. Concurrently with the repayment, the Prudential Shelf Noteholders authorized and directed PNC Bank, National Association, in its capacity as Collateral Agent (as defined in the Shelf Note Agreement) to release the security interests and liens securing the Shelf Note Agreement and the Shelf Note Agreement was ~~repaid in full as of July 29, 2019, as further described below.~~terminated.

~~New Senior Secured~~Bridge Credit ~~Facilities~~Facility -– On July 31, 2019, we entered into the Base Credit Agreement with Barclays Bank PLC, as administrative agent and the several lenders from time to time party thereto. The Base Credit Agreement provides for up to $1.3 billion as a Term Loan Facility, up to $350 million as a Revolving Facility, up to $50 million as an L/C Facility and up to $50 million, as a sublimit of the Revolving Facility.

On July 31, 2019, the Company borrowed under the Base Credit Agreement which was used to (i) finance the Merger Consideration paid in connection with the closing of the ~~Merger,~~acquisition of Infiltrator Water Technologies by us which occurred on July 31, 2019 (the “Merger”), (ii) and repay the total outstanding amount as of the Closing Date

under the PNC Credit Agreement, (iii) repay outstanding amounts of existing indebtedness incurred by ~~IWT~~Infiltrator Water Technologies under its outstanding credit facility in effect prior to the Acquisition, and (iv) pay certain transaction fees and expenses associated with the Acquisition and the Base Credit Agreement.

New Senior Secured Credit Facility - On September 24, 2019, the joint lead arrangers informed the Company that the parties had successfully completed a syndication of the remaining balance of the Bridge credit Facility.The Senior Secured Credit Facility provided for a Term Loan Facility with an initial aggregate amount of $700 million, up to $350 million as a Revolving Facility, up to $50 million as an L/C Facility and up to $50 million, as a sublimit of the Revolving Facility.

The Term Loan Facility must be repaid in equal quarterly installments commencing on January 1, 2020 and continuing on the first day of each consecutive April, July, October and January thereafter. To the extent not previously paid, all then-outstanding amounts under the Term Loan Facility are due and payable on the maturity date of the Term Loan Facility, which is seven years from the Closing Date. Borrowings under the Revolving Facility are available beginning on the Closing Date and, to the extent not previously paid, all then-outstanding amounts under the Revolving Facility are due and payable on the maturity date of the Revolving Facility, which is five years from the Closing Date.

The Senior Secured Credit ~~Agreement~~Facility includes customary representations, warranties, covenants and events of default.

At the option of the Company, borrowings under the Term Loan Facility and under the Revolving Facility (subject to certain limitations) bear interest at either a base rate (as determined pursuant to the Senior Secured Credit ~~Agreement)~~Facility) or at a Eurocurrency Rate, based on LIBOR (as defined in the Senior Secured Credit ~~Agreement)~~Facility), plus the applicable margin as set forth therein from time to time. In the case of the Revolving Facility, the applicable margin is based on the Company’s consolidated senior secured net leverage ratio (as defined in the Senior Secured Credit ~~Agreement)~~Facility). All borrowings under the Term Loan Facility used to finance the Merger Consideration as described above initially bear interest at a Eurocurrency Rate (as defined in the Senior Secured Credit ~~Agreement)~~Facility). Beginning 53 days after the Closing Date, the applicable margin for the Term Loan Facility will be increased by 25 basis points every thirty days following the Closing Date until the earlier of (i) the Marketing Commencement Date (as defined in the Credit Agreement) or (ii) 113 days after the Closing Date.

The ~~Company has agreed to secure all of its~~Company’s obligations under the Credit Agreement have been secured by granting a first priority lien on substantially all of ~~its~~the Company’s assets (subject to certain exceptions and limitations), and each of Stormtech, LLC, Advanced Drainage of Ohio, Inc. and Infiltrator Water Technologies, LLC ~~(together with the Company,~~(collectively the “Guarantors”) has agreed to guarantee the obligations of the Company under the Senior Secured Credit ~~Agreement~~Facility and to secure the obligations thereunder by granting a first priority lien in substantially all of such Guarantor’s assets (subject to certain exceptions and limitations).

The Senior Secured Credit ~~Agreement~~Facility requires, if the aggregate amount of outstanding exposure under the Revolving Facility exceeds ~~$122,500,000~~$122.5 million at the end of any fiscal quarter, the Company to maintain a consolidated senior secured net leverage ratio (commencing with the fiscal quarter ending March 31, 2020) not to exceed 4.25 to 1.00 for any four consecutive fiscal quarter periods.

The Senior Secured Credit ~~Agreement~~Facility also includes other covenants, including negative covenants that, subject to certain exceptions, limit the Company’s and its restricted subsidiaries’ (as defined in the Senior Secured Credit Facility) ability to, among other things: (i) incur additional debt, including guarantees; (ii) create liens upon any of their property; (iii) enter into any merger, consolidation or amalgamation, liquidate, wind up or dissolve, or dispose of all or substantially all of their property or business; (iv) dispose of assets; (v) pay subordinated debt; (vi) make certain investments; (vii) enter into swap agreements; (viii) engage in transactions with affiliates; (ix) engage in new lines of business; (x) modify certain material contractual obligations, organizational documents, accounting policies or fiscal year; or (xi) create or permit restrictions on the ability of any subsidiary of any Loan Party (as defined in the Senior Secured Credit Facility) to pay dividends or make distributions to the Company or any of its subsidiaries.

The Senior Secured Credit Facility also contains customary provisions requiring the following mandatory prepayments (subject to certain exceptions and limitations): (i) annual prepayments (beginning with the fiscal year ending March 31, 2021) with a percentage of excess cash flow (as defined in the Senior Secured Credit Facility); (ii) 100% of the net cash proceeds from any non-ordinary course sale of assets and certain casualty or condemnation

events; and (iii) 100% of the net cash proceeds of indebtedness not permitted to be incurred under the Senior Secured Credit Facility.

Issuance of Senior Notes due 2027 - On September 23, 2019, the Company issued $350.0 million aggregate principal amount of its Senior Notes, pursuant to the Indenture among the Company, the Guarantors and the Trustee. The Senior Notes are guaranteed by each of the Company’s present and future direct and indirect wholly owned domestic subsidiaries that is a guarantor under the Company's Senior Secured Credit Facility. The Senior Notes were offered and sold either to persons reasonably believed to be “qualified institutional buyers” pursuant to Rule 144A under the Securities Act or to persons outside the United States under Regulation S of the Securities Act.

Interest on the Senior Notes will be payable semi-annually in cash in arrears on March 31 and September 30 of each year, commencing on March 31, 2020, at a rate of 5.000% per annum. The Senior Notes will mature on September 30, 2027. The Company used the majority of the net proceeds from the offering of the Senior Notes for the repayment of $300.0 million of its outstanding borrowings under the Company’s Bridge Loan Facility.

The Company may redeem the Senior Notes, in whole or in part, at any time on or after September 30, 2022 at established redemption prices. At any time prior to September 30, 2022, the Company may also redeem up to 40% of the Senior Notes with net cash proceeds of certain equity offerings at a redemption price equal to 105.000% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, at any time prior to September 30, 2022, the Company may redeem the Senior Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date plus an applicable “make-whole” premium.

The Senior Secured Credit Facility requires, if the aggregate amount of outstanding exposure under the Revolving Facility exceeds $122.5 million at the end of any fiscal quarter, the Company to maintain a consolidated senior secured net leverage ratio (commencing with the fiscal quarter ending March 31, 2020) not to exceed 4.25 to 1.00 for any four consecutive fiscal quarter periods.

The Senior Secured Credit Facility also includes other covenants, including negative covenants that, subject to certain exceptions, limit the Company’s and its restricted subsidiaries’ (as defined in the Credit Agreement) ability to, among other things: (i) incur additional debt, including guarantees; (ii) create liens upon any of their property; (iii) enter into any merger, consolidation or amalgamation, liquidate, wind up or dissolve, or dispose of all or substantially all of their property or business; (iv) dispose of assets; (v) pay subordinated debt; (vi) make certain investments; (vii) enter into swap agreements; (viii) engage in transactions with affiliates; (ix) engage in new lines of business; (x) modify certain material contractual obligations, organizational documents, accounting policies or fiscal year; or (xi) create or permit restrictions on the ability of any subsidiary of any Loan Party (as defined in the Senior Secured Credit ~~Agreement)~~Facility) to pay dividends or make distributions to the Company or any of its subsidiaries.

The Senior Secured Credit ~~Agreement~~Facility also contains customary provisions requiring the following mandatory prepayments (subject to certain exceptions and limitations): (i) annual prepayments (beginning with the fiscal year ending March 31, 2021) with a percentage of excess cash flow (as defined in the Senior Secured Credit ~~Agreement)~~Facility); (ii) 100% of the net cash proceeds from any non-ordinary course sale of assets and certain casualty or condemnation events; and (iii) 100% of the net cash proceeds of indebtedness not permitted to be incurred under the Senior Secured Credit ~~Agreement.~~

Our outstanding debt agreements and instruments contain various restrictive covenants including, but not limited to, limitations on additional indebtedness and capital distributions, including dividend payments. The two primary debt covenants of the PNC Credit Agreement and Senior Notes include a Leverage Ratio and an Interest Coverage Ratio maintenance covenant. For any relevant period of determination, the Leverage Ratio is calculated by dividing Total Consolidated Indebtedness (funded debt plus guarantees) by Consolidated EBITDA, as defined by the credit facility. The current upper limit is 4.0 times (or 4.25 as of the date of any acquisitions permitted under the amended agreement for which the aggregate consideration is $100.0 million or greater). The Interest Coverage Ratio is calculated by dividing the sum of Consolidated EBITDA by consolidated interest expense. The current minimum ratio is 3.0 times.Facility.

For further information, see “Note ~~13.~~11. Debt” to the Condensed Consolidated Financial Statements included in ~~“Item 8. Financial Statements and Supplementary Data” of our Fiscal 2019 Form 10-K.~~this Quarterly Report. We are in compliance with our debt covenants as of ~~June~~September 30, 2019.

~~Our new Credit Agreement also includes covenants, including negative covenants, as further described above.~~- 44 -

On August 1, 2019, the Company filed a universal shelf Registration Statement on Form S-3 (the “Registration Statement”) with the SEC in accordance with the Securities Act of 1933, as amended, ~~which has not yet been declared effective. Upon being~~Registration Statement was declared effective ~~the~~on August 14, 2019. The Registration Statement ~~will register~~registers debt securities, common stock, preferred stock, depositary shares, warrants, purchase contracts, units, subscription rights and any combination of the foregoing, for a maximum aggregate offering price of up to $500 million, which may be sold from time to time. The terms of any securities offered under the Registration Statement and intended use of proceeds will be established at the times of the offerings and will be described in prospectus supplements filed with the SEC at the times of the offerings. ~~Once declared effective, the~~The Registration Statement will have a three year ~~term.~~term from the date of effectiveness.

On September 10, 2019, the Company issued and sold an aggregate of 10,350,000 shares of common stock, $0.01 par value per share, which included the full exercise of the underwriters’ option to purchase additional shares, at a price of $29.75 per share, before underwriting discounts and commissions. The common stock was sold pursuant to the Company’s Registration Statement and related prospectus supplement. We received proceeds of approximately $293.6 million from the issuance after deducting underwriting discounts and commissions and estimated offering expenses payable by the Company. The Company used the net proceeds for the repayment of a portion of the outstanding borrowings under the Senior Secured Credit Facility, with the remaining proceeds used for general corporate purposes.

Excluding the guarantees of 50% of certain debt of our unconsolidated South American Joint Venture as further discussed in “Note 9.10. Related Party Transactions” to the Condensed Consolidated Financial Statements, we do not have any other off-balance sheet arrangements. As of ~~June~~September 30, 2019, our South American Joint Venture had

approximately $12.2 million of outstanding debt subject to our guarantees. We do not believe that this guarantee will have a current or future effect on our financial condition, results of operations, liquidity, or capital resources.

With the exception of the accounting pronouncements adopted during fiscal 2020 discussed in “Note 1. Background and Summary of Significant Accounting Policies” and “Note 4.5. Leases,” there have been no changes in critical accounting policies from those disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Fiscal 2019 Form 10-K.

This Quarterly Report on Form 10-Q (“Form 10-Q”) includes forward-looking statements. Some of the forward-looking statements can be identified by the use of terms such as “believes,” “expects,” “may,” “will,” “would,” “should,” “could,” “seeks,” “predict,” “potential,” “continue,” “intends,” “plans,” “projects,” “estimates,” “anticipates” or other comparable terms. These forward-looking statements include all matters that are not related to present facts or current conditions or that are not historical facts. They appear in a number of places throughout this Form 10-Q and include statements regarding our intentions, beliefs or current expectations concerning, among other things, our consolidated results of operations, financial condition, liquidity, prospects, growth strategies, and the industries in which we operate and include, without limitation, statements relating to our future performance.

Forward-looking statements are subject to known and unknown risks and uncertainties, many of which are beyond our control. We caution you that forward-looking statements are not guarantees of future performance and that our actual consolidated results of operations, financial condition, liquidity and industry development may differ materially from those made in or suggested by the forward-looking statements contained in this Quarterly Report on Form 10-Q. In addition, even if our actual consolidated results of operations, financial condition, liquidity and industry development are consistent with the forward-looking statements contained in this Form 10-Q, those results or developments may not be indicative of results or developments in subsequent periods. A number of important factors could cause actual results to differ materially from those contained in or implied by the forward-looking statements, including those reflected in forward-looking statements relating to our operations and business, the risks and uncertainties discussed in this Form 10-Q (including under the headings “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations”), and those described from time to time in our other filings with the SEC. Factors that could cause actual results to differ from those reflected in forward-looking statements relating to our operations and business include:

All forward-looking statements are made only as of the date of this report and we do not undertake any obligation, other than as may be required by law, to update or revise any forward-looking statements to reflect future events or developments. Comparisons of results for current and any prior periods are not intended to express any future trends, or indications of future performance, unless expressed as such, and should only be viewed as historical data.

We are subject to various market risks, primarily related to changes in interest rates, credit, raw material supply prices and, to a lesser extent, foreign currency exchange rates. Our financial position, results of operations or cash flows may be negatively impacted in the event of adverse movements in the respective market rates or prices in each of these risk categories. Our exposure in each category is limited to those risks that arise in the normal course of business, as we do not engage in speculative, non-operating transactions. Our exposure to market risk has not

materially changed from what we previously disclosed in Part II. Item 7A. “Quantitative and Qualitative Disclosures about Market Risk” of our Annual Report on Form 10-K for the fiscal year ended March 31, 2019.

The Company’s Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”) are responsible for evaluating the effectiveness of our disclosure controls and procedures as defined in the Securities Exchange Act of 1934, as amended (the “Exchange Act”) rules 13a-15(e) and 15d-15(e). The Company’s disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed in the Company’s reports under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to management, including the Company’s CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As previously disclosed in our Fiscal 2019 Form 10-K, we concluded that our internal control over financial reporting was not effective based upon the material weakness identified as of March 31, 2019. See “Item 9A - Controls and Procedures” in our Fiscal 2019 Form 10-K. Our CEO and CFO have concluded that the material weakness previously identified in the Fiscal 2019 Form 10-K was still present as of ~~June~~September 30, 2019 (the “Evaluation Date”). Based on the material weakness, and the evaluation of our disclosure controls and procedures, our CEO and CFO concluded that the Company’s disclosure controls and procedures were not effective as of the Evaluation Date.

There were no changes in the Company’s internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act that occurred during the three months ended ~~June~~September 30, 2019 that has materially affected, or is reasonably likely to materially affect, internal control over financial reporting.

During the three months ended September 30, 2019, the Company completed the Acquisition of Infiltrator Water Technologies, see “Note 3. Acquisitions” for additional information on the Acquisition. the Company is currently integrating Infiltrator Water Technologies into its operations and internal control processes and, pursuant to the SEC’s guidance that a recently acquired business may be excluded from the scope of an assessment of internal control over financial reporting in the year of acquisition, the scope of its assessment of the effectiveness of its internal controls over financial reporting at March 31, 2020 will exclude Infiltrator Water Technologies to the extent not integrated into the Company’s control environment.

On July 29, 2015, a putative stockholder class action, Christopher Wyche, individually and on behalf of all others similarly situated v. Advanced Drainage Systems, Inc., et al. (Case No. 1:15-cv-05955-KPF), was commenced in the U.S. District Court for the Southern District of New York (the “District Court”), naming the Company, along with Joseph A. Chlapaty, the Company’s former Chief Executive Officer, and Mark B. Sturgeon, the Company’s former Chief Financial Officer, as defendants and alleging violations of the federal securities laws. An amended complaint was filed on April 28, 2016. The amended complaint alleged that the Company made material misrepresentations and/or omissions of material fact in its public disclosures during the period from July 25, 2014 through March 29, 2016, in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder. On March 10, 2017, the District Court dismissed plaintiff’s claims against all defendants in their entirety and with prejudice. Plaintiff appealed to the United States Court of Appeals for the Second Circuit, and on October 13, 2017 the District Court’s judgment was affirmed by the Second Circuit. On October 27, 2017, plaintiff filed a petition for rehearing with the Second Circuit. The Second Circuit denied the petition for rehearing on November 28, 2017. On November 27, 2018, the plaintiff filed with the District Court a motion for relief from final judgment and for leave to file an amended complaint, which, the defendants opposed. On July 3, 2019, the District Court denied the plaintiff’s motion. ~~While it~~The Plaintiff did not appeal the District Court’s decision and the matter is ~~reasonably possible that this matter ultimately could be decided unfavorably to the Company, the Company is currently unable to estimate the range of the possible losses, but it could be material.~~concluded.

Please see “Note ~~11.~~12. Commitments and Contingencies,” of the Condensed Consolidated Financial Statements of this Quarterly Report on Form 10-Q for more information regarding legal proceedings.

The following risk factors are related to the acquisition of Infiltrator Water Technologies and related financings. Additional important risk factors that could affect our operations and financial performance, or that could cause results or events to differ from current expectations, are described in “Part I, Item 1A — Risk Factors” of our Fiscal 2019 Form 10-K. These factors are further supplemented by those discussed in “Part II, Item 7A — Quantitative and Qualitative Disclosures about Market Risk” of our Fiscal 2019 Form 10-K and in “Part I, Item 3 — Quantitative and Qualitative Disclosures about Market Risk” and “Part II, Item 1 — Legal Proceedings” of this Quarterly Report on Form 10-Q.

We may be unable to successfully integrate our and ~~Infiltrator’s~~Infiltrator Water Technologies’ businesses in order to realize the anticipated benefits of the acquisition or do so within the intended timeframe.

We will be required to devote significant management attention and resources to integrating the business practices and operations of Infiltrator Water Technologies with our business. We may be unable to realize the planned synergies from the acquisition or other benefits in the timeframe that we expect or at all. We continue to assess synergies that we may realize as a combined company, the realization of which will depend on a number of factors.

The success of the acquisition, including anticipated synergies, benefits and cost savings, will depend, in part, on our ability to successfully combine and integrate our current operations with ~~Infiltrator’s~~Infiltrator Water Technologies’ business. If we experience difficulties with the integration process or other unforeseen costs, the anticipated benefits and cost savings of the acquisition may not be realized fully or at all, or may take longer to realize than expected. The integration planning and implementation process will result in significant costs and divert management attention and resources. These integration matters could have an adverse effect on our combined company for an undetermined period after completion of the acquisition. In addition, the actual cost savings of the acquisition could be less than anticipated, or otherwise offset by other factors.

Additional difficulties we may encounter as part of the integration process include the following:

Any of these factors could adversely affect each company’s ability to maintain relationships with customers, suppliers, employees and other constituencies or our ability to achieve the anticipated benefits of the acquisition or could reduce each company’s earnings or otherwise adversely affect our business and financial results after the acquisition. These risks are not limited to our acquisition of Infiltrator Water Technologies and could also apply to our future acquisitions.

Uncertainties associated with our acquisition of Infiltrator Water Technologies may cause a loss of management personnel and other key employees, which could adversely affect our future business, operations and financial results.

The acquisition of Infiltrator Water Technologies could disrupt our and ~~Infiltrator’s~~Infiltrator Water Technologies’ businesses. We are dependent on the experience and industry knowledge of senior management and other key employees to execute our business plans, which could be disrupted by the unanticipated departure of any key member of our management team or employee base, as well as management or key employees of ~~Infiltrator.~~Infiltrator Water Technologies. Our and ~~Infiltrator’s~~Infiltrator Water Technologies’ current and prospective employees may experience uncertainty about their roles within our company, which may have an adverse effect on the ability of each of us to attract or retain key management and other key personnel.

Accordingly, no assurance can be given that we will be able to attract or retain our and ~~Infiltrator’s~~Infiltrator Water Technologies’ key management personnel and other key employees to the same extent that our companies have previously been able to attract or retain such employees. In addition, because of the specialized and technical nature of our business, our future performance is dependent on the continued service of, and on our ability to attract and retain, qualified management, engineering, technical, marketing and support personnel. Competition for such personnel is intense, and we may be unable to continue to attract or retain such personnel.

Our results after our acquisition of Infiltrator Water Technologies may suffer if we do not effectively manage our expanded operations following the acquisition.

Following our acquisition of Infiltrator Water Technologies, the size and complexity of our business will increase significantly beyond the current size of either our or ~~Infiltrator’s~~Infiltrator Water Technologies’ existing business. Our future success depends, in part, upon our ability to manage this expanded business, which will pose substantial challenges for management, including challenges related to the management and monitoring of new operations and new types of manufacturing processes and products and associated increased costs and complexity. There can be no assurances that we will be successful after completion of the acquisition or that we will realize the expected benefits currently anticipated from our acquisition of ~~Infiltrator.~~Infiltrator Water Technologies.

The business of Infiltrator Water Technologies may underperform relative to our expectations.

We may not be able to maintain the levels of revenue, earnings or operating efficiency that we and Infiltrator Water Technologies have achieved or might achieve separately. The business and financial performance of Infiltrator Water Technologies is subject to certain risks and uncertainties, including the risk of the loss of, or changes to, its relationships with its customers. We may be unable to achieve the same growth, revenues and profitability that Infiltrator Water Technologies has achieved in the past.

The unaudited pro forma financial information related to the acquisition may not accurately reflect our financial position or results of operations.

The unaudited pro forma financial information contained in “Note 153 - ~~Subsequent Events”~~Acquisitions” to the notes to our unaudited financial statements included in this Quarterly Report and the unaudited pro forma financing information included in our Current Report on Form 8-K dated August 1, 2019, was presented for illustrative purposes only and may not be an indication of what our financial position or results of operations would have been had the Merger been completed on the dates indicated. The unaudited pro forma financial information was derived from our audited and unaudited historical financial statements along with those of Infiltrator Water Technologies, and certain adjustments and assumptions were made regarding the combined company after giving effect to the Merger. The assets and liabilities of Infiltrator Water Technologies were measured at fair value based on various preliminary estimates using assumptions that ~~Infiltrator’s~~Infiltrator Water Technologies’ management believed to be reasonable utilizing information currently available. The process for estimating the fair value of acquired assets and assumed liabilities requires the use of judgment in determining the appropriate assumptions and estimates. These estimates and assumptions may be revised as additional information becomes available and as additional analyses are performed. Differences between preliminary estimates in the pro forma financial information and the final acquisition accounting will occur and could have a material impact on the pro forma financial information and the combined company’s financial position and future results of operations. In addition, the assumptions used in preparing the pro forma financial information may not prove to be accurate, and other factors may affect our financial condition or results of operations following the Merger. Any potential decline in our financial condition or results of operations may cause significant variations in the trading price of our common stock following the Merger.

Our level of indebtedness could adversely affect our business, financial conditions or results of operations and prevent us from fulfilling our obligations under the agreements governing the terms of our indebtedness.

As of September 30, 2019, we had, on a consolidated basis, total indebtedness (excluding capital lease obligations) of approximately $1,052 million (excluding $8.5 million of outstanding letters of credit), excluding $341.5 million of undrawn availability under the Revolving Credit Facility portion of the Senior Secured Credit Facility. Our indebtedness could have risks. For example, it could:

We expect to pay expenses and to pay principal and interest on current and future debt from cash provided by from operating activities. Therefore, our ability to meet these payment obligations will depend on future financial performance and cash availability, which is subject in part to numerous economic, business and financial factors beyond our control. If our cash flow and capital resources are insufficient to fund our debt obligations, we may be forced to reduce or delay expansion plans and capital expenditures, limit payment of dividends, sell material assets or operations, obtain additional capital or restructure our debt.

We borrowed under our new Credit Agreement to finance our acquisition of ~~Infiltrator.~~Infiltrator Water Technologies. Any failure by us to comply with operating and financial restrictions and covenants under the ~~new~~Senior Secured Credit Facility could result in the accelerated maturity of debt obligations, which could materially and adversely affect our liquidity.

In connection with our acquisition of Infiltrator Water Technologies, we replaced our ~~existing~~ PNC Credit Agreement and ~~Senior Notes~~Shelf Note Agreement with the Senior Secured Credit ~~Facilities~~Facility under the new Credit Agreement, which was used to finance the acquisition of ~~Infiltrator.~~Infiltrator Water Technologies. The ~~new senior credit facility was provided under the new~~ Credit Agreement ~~that~~ contains numerous restrictive covenants that limit our discretion in the operation of our business, which could, in turn, have a materially adverse effect on our business, financial condition and results of operations. If we are unable to generate sufficient cash flow or otherwise obtain the funds necessary to make required repayments under the Credit Agreement, or if we fail to comply with the requirements of the covenant pertaining to limitations on our indebtedness, we could ~~create~~trigger an event of default under the Credit Agreement. Any default that is not cured or waived could result in the acceleration of the obligations under the Credit Agreement. Any such default which actually causes an acceleration of obligations could have a material adverse effect on our liquidity and financial condition. Additionally, the covenants in the Credit Agreement may restrict the conduct of our business, which could adversely affect our business by, among other things, limiting our ability to take advantage of financings, mergers, acquisitions and other corporate opportunities that may be beneficial to our business. Our ability to comply with covenants contained in the Credit Agreement may be affected by events beyond our control, including prevailing economic, financial and industry conditions.

The credit agreement governing our Senior Secured Credit Facility and the Indenture governing our Senior Notes each permit us and our subsidiaries to incur substantial additional indebtedness. This could exacerbate the risks associated with our substantial indebtedness.

We and our subsidiaries may be able to incur substantial additional indebtedness, including additional secured debt, in the future. Although the terms of the Indenture governing the Senior Notes offered hereby and the Credit Agreement governing our Senior Secured Credit Facility contain restrictions on the incurrence of additional indebtedness, these restrictions are subject to a number of qualifications and exceptions and the indebtedness incurred in compliance with these restrictions could be substantial. As of September 30, 2019, after giving effect to the Transactions, we would have had, on a consolidated basis, total indebtedness (excluding capital lease obligations) of $1,052 million (excluding $8.5 million of outstanding letters of credit), excluding $341.5 million of undrawn availability under the Revolving Credit Facility portion of the Senior Secured Credit Facility. In addition,

the Indenture governing the Senior Notes allows us to issue additional notes under certain circumstances and to incur other types of indebtedness, which will also be guaranteed by the subsidiary guarantors. In addition, the Indenture does prevent us from incurring certain other liabilities that do not constitute “Indebtedness” (as defined in the Indenture). If new debt or other liabilities are added to our current debt levels, the related risks that we and our subsidiaries new face could intensify.

We may not be able to generate sufficient cash to service all of our indebtedness and may be forced to take other actions to satisfy our obligations under our indebtedness, which may not be successful.

Our ability to make scheduled payments on or to refinance our debt obligations and to fund working capital, planned capital expenditures and expansion efforts and any strategic alliances or acquisitions we may make in the future depends on our financial condition and operating performance, which are subject to prevailing economic and competitive conditions and to certain financial, business and other factors beyond our control. We may not be able to assure you that we will maintain a level of cash flows from operating activities sufficient to permit us to pay the principal, premium, if any, and interest on our debt.

If our cash flows and capital resources are insufficient to fund our debt service obligations, we may be forced to reduce or delay investments and capital expenditures, or to sell assets, seek additional capital, restructure or refinance our debt or sell assets. These alternative measures may not be successful and may not permit us to meet our scheduled debt service obligations. If our operating results and available cash are insufficient to meet our debt service obligations, we could face substantial liquidity problems and might be required to dispose of material assets or operations to meet our debt service and other obligations. We may not be able to consummate those dispositions or to obtain the proceeds sought from them, and these proceeds may not be adequate to meet any debt service obligations then due. Further, we may need to refinance all or a portion of our debt on or before maturity. Any refinancing of our debt could be at higher interest rates and may require us to comply with more onerous covenants, which could further restrict our business operations, and we cannot assure you that we will be able to refinance any of our debt on commercially reasonable terms or at all.

We may have future capital needs and may not be able to obtain additional financing on acceptable terms.

Although we believe that our current cash position and the additional committed funding available under our Senior Secured Credit Facility is sufficient for our current operations, any reductions in our available borrowing capacity, or our inability to renew or replace our debt facilities when required or when business conditions warrant, could have a material adverse effect on our business, financial condition and results of operations. The economic conditions, credit market conditions, and economic climate affecting our industry, as well as other factors, may constrain our financing abilities. Our ability to secure additional financing, if available, and to satisfy our financial obligations under indebtedness outstanding from time to time will depend upon our future operating performance, the availability of credit generally, economic conditions and financial, business and other factors, many of which are beyond our control. The market conditions and the macroeconomic conditions that affect our industry could have a material adverse effect on our ability to secure financing on favorable terms, if at all.

If financing is not available when needed, or is available on unfavorable terms, we may be unable to take advantage of business opportunities or respond to competitive pressures, any of which could have a material adverse effect on our business, financial condition and results of operations.

The agreements and instruments governing our indebtedness impose or will impose restrictions that may limit our operating and financial flexibility.

The operating and financial covenants and restrictions in each of the Credit Agreement that governs the Senior Secured Credit Facility and the Indenture that governs the Senior Notes may adversely affect our ability to finance our future operations or capital needs or engage in other business activities that may be in our interest. The agreements governing our indebtedness will restrict, subject to certain important exceptions and qualifications, our and our subsidiaries’ ability to, among other things:

These covenants could have the effect of limiting our flexibility in planning for or reacting to changes in our business and the markets in which we compete. In addition, the agreements governing our Senior Secured Credit Facility will require us to comply with a financial maintenance covenant. Operating results below current levels or other adverse factors, including a significant increase in interest rates, could result in our being unable to comply with the financial covenant contained in the Credit Agreement. If we violate covenants under the Credit Agreement and are unable to obtain a waiver from our lenders, our indebtedness under our Senior Secured Credit Facility would be in default and could be accelerated by our lenders. Because of cross-default provisions in the agreements and instruments governing our debt, a default under one agreement or instrument could result in a default under, and the acceleration of, our other debt.

If our indebtedness is accelerated, we may not be able to repay our indebtedness or borrow sufficient funds to refinance it. Even if we are able to obtain new financing, it may not be on commercially reasonable terms, on terms that are acceptable to us, or at all. If our indebtedness is in default for any reason, our business, financial condition and results of operations could be materially and adversely affected. In addition, complying with these covenants may also cause us to take actions that are not favorable to holders of the Senior Notes and may make it more difficult for us to successfully execute our business strategy and compete against companies that are not subject to such restrictions.

In February 2017, our Board of Directors authorized the repurchase of up to $50 million of our common stock. Repurchases of common stock will be made in accordance with applicable securities laws. We did not repurchase any shares of common stock during the three months ended ~~June~~September 30, 2019. As of ~~June~~September 30, 2019, approximately $42.1 million of common stock may be repurchased under the authorization. The stock repurchase program does not obligate us to acquire any particular amount of common stock and may be suspended or terminated at any time at our discretion.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value per share	WMS	New York Stock Exchange



PART I. FINANCIAL INFORMATION

Item 1.	Condensed Consolidated Financial Statements (Unaudited)	Page

	Condensed Consolidated Balance Sheets as of ~~June~~September 30, 2019 and March 31, 2019	1

	Condensed Consolidated Statements of Operations for the three and six months ended ~~June~~September 30, 2019 and 2018	2

	Condensed Consolidated Statements of Comprehensive Income (loss) for the three and six months ended ~~June~~September 30, 2019 and 2018	3

	Condensed Consolidated Statements of Cash Flows for the ~~three~~six months ended ~~June~~September 30, 2019 and 2018	4

	Condensed Consolidated Statements of Stockholders’ Equity and Mezzanine Equity for the three and six months ended ~~June~~September 30, 2019 and 2018	5

	Notes to the Condensed Consolidated Financial Statements	67

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	2530

Item 3.	Quantitative and Qualitative Disclosures About Market Risk	3847

Item 4.	Controls and Procedures	3948

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	4049

Item 1A.	Risk Factors	4049

Item 2.	Unregistered Sale of Equity Securities	4254

Item 3.	Defaults Upon Senior Securities	4254

Item 4.	Mine Safety Disclosures	4354

Item 5.	Other Information	4354

Item 6.	Exhibits	4455

Signatures		4556

(Amounts in thousands)	Amount
Cash	$	57,375
Total current assets, excluding cash		75,847
Property, plant and equipment, net		98,860
Goodwill		567,034
Intangible assets, net		475,000
Other assets		14,366
Total current liabilities		(22,756	)
Deferred tax liabilities		(109,926	)
Other liabilities		(9,274	)
Total fair value of consideration transferred	$	1,146,526

(Amounts in thousands)	Preliminary fair value		Estimated useful lives
Customer relationships	$	270,000	15 years
Patents and developed technology		140,000	10 years
Tradename and trademarks		65,000	20 years
Total identifiable intangible assets	$	475,000

(Amounts in thousands)	2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	2,616
Operating cash flows from finance leases		2,434
Financing cash flows from finance leases		12,375
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		4,774
Finance leases^(a)		1,469



Large Accelerated Filer	☒	Accelerated Filer	☐
Non-Accelerated Filer	☐	Smaller Reporting Company	☐
Emerging Growth Company	☐

(Amounts in thousands)	Operating Leases		Capital Leases
2020	$	4,159	$	26,604
2021		2,924		22,507
2022		1,814		18,064
2023		690		11,721
2024		325		7,143
Thereafter		2,236		8,198
Total minimum lease payments	$	12,148	$	94,237
Less: amount representing interest		—		9,565
Present value of net minimum lease payments	$	12,148	$	84,672

	March 31, 2019
	Total		Level 1		Level 2		Level 3
	(In thousands)
Assets:
Derivative assets – diesel fuel contracts	$	189	$	—	$	189	$	—
Interest rate swaps		1,088		—		1,088		—
Total assets at fair value on a recurring basis	$	1,277	$	—	$	1,277	$	—
Liabilities:
Derivative liability - diesel fuel contracts	$	283	$	—	$	283	$	—
Foreign exchange contracts		60		—		60		—
Contingent consideration for acquisitions		203		—		—		203
Total liabilities at fair value on a recurring basis	$	546	$	—	$	343	$	203

	Twelve Months Ended September 30,
(Amounts in thousands)	2020		2021		2022		2023		2024		Thereafter		Total
Principal maturities	$	6,195	$	7,931	$	7,084	$	7,000	$	7,000	$	1,016,753	$	1,051,963

		Three Months Ended ~~June~~September 30,
Common stock price		$27.44
Expected stock price volatility		30.9%
Risk-free interest rate		2.3%
Weighted-average expected option life (years)		6.0
Dividend yield		1.3%

	Domestic		International			Total
	(In thousands)
For the three months ended June 30, 2019
Net sales	$	374,375	$	39,333		$	413,708
Segment Adjusted EBITDA		74,328		5,968			80,296
Interest expense		5,188		76			5,264
Income tax expense		17,430		4,940			22,370
Depreciation and amortization		14,803		1,891			16,694
Equity in net income of unconsolidated affiliates		—		(434	)		(434	)
Capital expenditures		8,469		1,254			9,723
For the three months ended June 30, 2018
Net sales	$	342,498	$	45,349		$	387,847
Segment Adjusted EBITDA		68,832		6,311			75,143
Interest expense		3,757		45			3,802
Income tax expense		13,257		1,027			14,284
Depreciation and amortization		15,953		1,874			17,827
Equity in net loss of unconsolidated affiliates		—		133			133
Capital expenditures		5,881		993			6,874

	For the Six Months Ended September 30,
	2019					2018
Consolidated Statements of Operations data:	(In thousands)					(In thousands)
Net sales	$	909,613		100.0	%	$	794,402		100.0	%
Cost of goods sold		656,637		72.2			599,338		75.4
Cost of goods sold - ESOP special dividend compensation		168,610		18.5			—		—
Gross profit		84,366		9.3			195,064		24.6
Selling		56,336		6.2			48,896		6.2
General and administrative		79,463		8.7			42,966		5.4
Selling, general and administrative - ESOP special dividend compensation		78,142		8.6			—		—
Loss on disposal of assets and costs from exit and disposal activities		2,711		0.3			1,428		0.2
Intangible amortization		10,842		1.2			3,969		0.5
Income (loss) from operations		(143,128	)	(15.7	)		97,805		12.3
Interest expense		57,596		6.3			8,333		1.0
Derivative loss (gains) and other expense (income), net		79		—			(720	)	(0.1	)
Income (loss) before income taxes		(200,803	)	(22.1	)		90,192		11.4
Income tax (benefit) expense		18,823		2.1			26,478		3.3
Equity in net (income) loss of unconsolidated affiliates		(637	)	(0.1	)		691		0.1
Net income (loss)		(218,989	)	(24.1	)		63,023		7.9
Less: net income (loss) attributable to noncontrolling interest		(222	)	—			2,073		0.3
Net income (loss) attributable to ADS	$	(218,767	)	(24.1	)%	$	60,950		7.7	%

(Amounts in thousands)	Sources		Uses
Bridge Loan Facility	$	1,300,000	$	—
Bridge Revolver		145,000		—
PNC Credit Agreement draw		104,429		—
Prudential Senior Notes payoff		—		(104,429	)
PNC Credit Agreement payoff		—		(239,240	)
Acquisition of Infiltrator Water Technologies, fair value of consideration transferred		—		(1,146,526	)
Common stock offering, net of offering costs		293,648		—
Bridge Loan Facility - payment		—		(300,000	)
Proceeds from Senior Notes Issuance		350,000		—
Bridge Loan Facility - payment		—		(300,000	)
Term Loan Facility		700,000		—
Bridge Loan Facility - payment		—		(700,000	)
Debt issuance costs		—		(34,606	)
Cash to Balance Sheet		—		(68,276	)
Total	$	2,893,077	$	(2,893,077	)

	Payments Due by Period
(Amounts in thousands)	Total		Less than 1 Year		1-3 Years		3-5 Years		More than 5 Years
Contractual obligations:
Long-term debt⁽¹⁾	$	1,051,963	$	6,195	$	15,015	$	14,000	$	1,016,753
Interest payments⁽²⁾		347,930		48,808		96,464		95,308		107,350
Operating leases		27,988		7,443		9,754		4,072		6,719
Finance leases		84,948		25,926		37,035		15,462		6,525
Total	$	1,512,829	$	88,372	$	158,268	$	128,842	$	1,137,347

Exhibit Number		Exhibit Description

4.1*2.1		Agreement and Plan of Merger, dated as of July 31, 2019, among Advanced Drainage Systems, Inc., ADS Ocean Merger Sub. Inc., Infiltrator Water Technologies Ultimate Holdings, Inc. and 2461461 Ontario Limited, an Ontario corporation (incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on August, 1 2019).

4.1		Indenture, dated September 23, 2019 among Advanced Drainage Systems Inc. each of the guarantors party thereto and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K (file No 001-36557) filed with the Securities Exchange Commission on September 23, 2019).

4.2		Form of 5.000% Senior Note Due 2027 (included in Exhibit 4.1) (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on September 23, 2019).

10.1		Credit Agreement, dated as of July 31, 2019, by and among Advanced Drainage Systems, Inc., Barclays Bank PLC, as administrative agent, the several lenders from time to time party thereto, Barclays Bank PLC and Morgan Stanley Senior Funding, Inc., as joint lead arrangers, joint bookrunners, syndication agents and documentation agents (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on August 1, 2019.

10.2		Advanced Drainage Systems, Inc. ~~Employee Stock Ownership Plan,~~Guarantee and Collateral Agreement (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on August 1, 2019).

10.3		First Amendment to Credit Agreement, by and among the Advanced Drainage Systems, Inc. the banks and other financial institutions or entities parties thereto, constituting all the Lenders under the Credit Agreement, the Issuing Lenders party thereto and Barclays Bank PLC, as ~~amended May~~administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on September 30, ~~2019.~~2019).

31.1*		Certification of President and Chief Executive Officer of Advanced Drainage Systems, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2*		Certification of Executive Vice President and Chief Financial Officer of Advanced Drainage Systems, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1*		Certification of Principal Executive Officer of Advanced Drainage Systems, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2*		Certification of Principal Financial Officer of Advanced Drainage Systems, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

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104		The cover page for the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019, has been formatted in Inline XBRL.

ADVANCED DRAINAGE SYSTEMS, INC.

By:		/s/ D. Scott Barbour
		D. Scott Barbour
		President and Chief Executive Officer
		(Principal Executive Officer)

By:		/s/ Scott A. Cottrill
		Scott A. Cottrill
		Executive Vice President, Chief Financial Officer and Secretary
		(Principal Financial Officer)

By:		/s/ Tim A. Makowski
		Tim A. Makowski
		Vice President, Controller, and Chief Accounting Officer