References in this Quarterly Report on Form 10-Q (“Report”) to the “Partnership,” “CINR,” “Ciner Resources,” “we,” “our,” “us,” or like terms refer to Ciner Resources LP and its consolidated subsidiary, Ciner Wyoming LLC, which is referred to herein as “Ciner Wyoming.” References to “our general partner” or “Ciner GP” refer to Ciner Resource Partners LLC, the general partner of Ciner Resources LP and a direct wholly-owned subsidiary of Ciner Wyoming Holding Co. (“Ciner Holdings”), which is a direct wholly-owned subsidiary of Ciner Resources Corporation (“Ciner Corp”). Ciner Corp is a direct wholly-owned subsidiary of Ciner Enterprises Inc. (“Ciner Enterprises”), which is a direct wholly-owned subsidiary of WE Soda Ltd., a U.K. corporation (“WE Soda”). WE Soda is a direct wholly-owned subsidiary of KEW Soda Ltd., a U.K. corporation (“KEW Soda”), which is a direct wholly-owned subsidiary of Akkan Enerji ve Madencilik Anonim Şirketi (“Akkan”). Akkan is directly and wholly owned by Turgay Ciner, the Chairman of the Ciner Group (“Ciner Group”), a Turkish conglomerate of companies engaged in energy and mining (including soda ash mining), media and shipping markets. All of our soda ash processed is sold to various domestic and international customers including American Natural Soda Ash Corporation (“ANSAC”), which was an affiliate for export sales in 2020. As a result of terminating Ciner Corp’s membership in ANSAC effective as of the end of day on December 31, 2020, ANSAC is no longer an affiliate of the Partnership.

We include cross references to captions elsewhere in this Report where you can find related additional information. The following table of contents tells you where to find these captions.

The unaudited condensed consolidated financial statements are composed of Ciner Resources LP (the “Partnership,” “CINR,” “Ciner Resources,” “we,” “us,” or “our”), a publicly traded Delaware limited partnership, and its consolidated subsidiary, Ciner Wyoming LLC (“Ciner Wyoming”), which is in the business of mining trona ore to produce soda ash. The Partnership’s operations consist solely of its investment in Ciner Wyoming. The Partnership was formed in April 2013 by Ciner Wyoming Holding Co. (“Ciner Holdings”), a wholly-owned subsidiary of Ciner Resources Corporation (“Ciner Corp”). Ciner Corp is a direct wholly-owned subsidiary of Ciner Enterprises Inc. (“Ciner Enterprises”), which is a direct wholly-owned subsidiary of WE Soda Ltd., a U.K. corporation (“WE Soda”). WE Soda is a direct wholly-owned subsidiary of KEW Soda Ltd., a U.K. corporation (“KEW Soda”), which is a direct wholly-owned subsidiary of Akkan Enerji ve Madencilik Anonim Şirketi (“Akkan”). Akkan is directly and wholly owned by Turgay Ciner, the Chairman of the Ciner Group (“Ciner Group”), a Turkish conglomerate of companies engaged in energy and mining (including soda ash mining), media and shipping markets. The Partnership owns a controlling interest comprised of 51.0% membership interest in Ciner Wyoming. All of our soda ash processed is sold to various domestic and international customers, including American Natural Soda Ash Corporation (“ANSAC”), which was an affiliate for export sales in 2020. As a result of terminating Ciner Corp’s membership in ANSAC effective as of the end of day on December 31, 2020, ANSAC is no longer an affiliate of the Partnership. All mining and processing activities of Ciner Wyoming take place in one facility located in the Green River Basin of Wyoming.

The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”) applicable to interim period financial statements and reflect all adjustments, consisting of normal recurring accruals, which are necessary for fair presentation of the results of operations, financial position and cash flows for the periods presented. All intercompany transactions, balances, revenue and expenses have been eliminated in consolidation. The results of operations for the three and sixnine month periods ended JuneSeptember 30, 2021 and 2020 are not necessarily indicative of the operating results for the full year.

These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes to audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”) filed with the United States Securities and Exchange Commission (“SEC”) on March 16, 2021. There have been no material changes in the significant accounting policies followed by us during the sixnine months ended JuneSeptember 30, 2021 from those disclosed in the 2020 Annual Report.

NRP Trona LLC, a wholly-owned subsidiary of Natural Resource Partners L.P. ("NRP"), currently owns a 49.0% membership interest in Ciner Wyoming. NRP’s membership interest in Ciner Wyoming is reflected as the noncontrolling interest in the Partnership’s financial results.

As the Partnership earns substantially all of its revenues through the sale of soda ash mined at a single location, we have concluded that we have 1 operating segment for reporting purposes.

The preparation of these unaudited condensed consolidated financial statements, in accordance with GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the dates of the unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Furthermore, we considered the impact of the COVID-19 pandemic on the use of estimates and assumptions used for financial reporting. While our year-to-date production is recovering from the COVID-19 pandemic negative impact, as of June 30, 2021, asgiven we cannot predict the duration or the scope of the COVID-19 pandemic and its impact on our operations, the potential negative financial impact to our results cannot be reasonably estimated but could be material. As a result of these uncertainties, actual results could differ from those estimates and assumptions. If the economy or markets in which we operate remain weaker than pre-COVID-19 levels, our business, financial condition and results of operations may be further materially and adversely impacted.

We have evaluated subsequent events through the filing date of this Quarterly Report on Form 10-Q.

On October 31, 2018, the SEC issued a final rule that amends the current disclosure regime for SEC registrants with material mining operations. Among the final rule’s amendments is the addition of Subpart 1300 to SEC Regulation S-K. The purpose of the amendments is to provide investors with more comprehensive information while aligning the SEC’s disclosure requirements with the global regulatory standards outlined by the Committee for Mineral Reserves International Reporting Standards, which is commonly referred to as “CRIRSCO.” When assessing the materiality of mining operations to determine whether disclosures are required, registrants must consider operations in the aggregate (including all mining properties irrespective of the current stage of development or operation) and evaluate both quantitative and qualitative factors. Registrants must comply with the revised requirements for their first fiscal year beginning on or after January 1, 2021. Further, the disclosures required under the final rule must be supported by the work of a qualified person, such as a mine engineer. When a registrant first reports mineral reserves or resources, or makes a material change to such disclosures, it must file a technical report summary supporting the disclosure. Developing this detailed disclosure information (e.g., by using an expert) and maintaining appropriate disclosure controls and procedures over it will require significant time, resources, and effort. The Partnership continues to evaluate the impact this guidance will have on its disclosures and will include such disclosures in the Annual Report on Form 10-K for the year ended December 31, 2021.

In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”) providing temporary guidance to ease the potential burden in accounting for reference rate reform primarily resulting from the discontinuation of the London Inter-bank Offered Rate (“LIBOR,”), which is currently expected to occur on December 31, 2021. The amendments in ASU 2020-04 are elective and apply to all entities that have contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued. The new guidance provides the following optional expedients: (i) simplifies accounting analyses under current GAAP for contract modifications; (ii) simplifies the assessment of hedge effectiveness and allows hedging relationships affected by reference rate reform to continue; and (iii) allows a one-time election to sell or transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform. An entity may elect to apply the amendments prospectively from March 12, 2020 through December 31, 2022 by accounting topic. The Partnership continues to evaluate ASU 2020-04 but does not expect a material impact to the Partnership’s consolidated financial statements.

In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope (“ASU 2021-01”) to clarify that all derivative instruments affected by changes to the interest rates used for discounting, margining or contract price alignment (commonly referred to as the discounting transition) are in the scope of Accounting Standards Codification (“ASC”) 848. The amendments also clarify other aspects of the guidance in ASC 848 and addresses the effects of the cash compensation adjustment provided in the discounting transition on certain aspects of hedge accounting. The guidance in ASC 848 also allows entities to make a one-time election to sell and/or transfer to available for sale or trading any held-to-maturity debt securities that refer to an interest rate affected by reference rate reform and were classified as held to maturity before January 1, 2020. The original guidance and the recently issued ASU are effective as of their issuance dates. The relief provided is temporary and generally cannot be applied to contract modifications that occur after December 31, 2022 or hedging relationships entered into or evaluated after that date. However, the FASB has indicated that it will revisit the sunset date in ASC 848 after the LIBOR administrator makes a final decision on a phaseout date. The LIBOR administrator recently extended the publication of the overnight and the one-, three-, six- and 12-month USD LIBOR settings through June 30, 2023, when many existing contracts that reference LIBOR will have expired. The Partnership continues to evaluate ASU 2021-01 but does not expect a material impact to the Partnership’s consolidated financial statements.

Net income per unit applicable to limited partners is computed by dividing limited partners’ interest in net income attributable to Ciner Corp, after deducting the general partner’s interest and any incentive distributions, by the weighted average number of outstanding common units. Our net income is allocated to the general partner and limited partners in accordance with their respective partnership percentages, after giving effect to priority income allocations for incentive distributions, if any, to our general partner, pursuant to our partnership agreement. Earnings in excess of distributions are allocated to the general partner and limited partners based on their respective ownership interests. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income allocations used in the calculation of net income per unit.

In addition to the common units, we have also identified the general partner interest and incentive distribution rights (“IDRs”) as

based on the weighted-average number of common units outstanding during the period. Anti-dilutive units outstanding were immaterial for both the three and sixnine months ended JuneSeptember 30, 2021 and 2020.

The net income attributable to limited partner unitholders and the weighted average units for calculating basic and diluted net income per limited partner units were as follows:

Our general partner has considerable discretion in determining the amount of available cash, the amount of distributions and the decision to make any distribution. Although our partnership agreement requires that we distribute all of our available cash quarterly, there is no guarantee that we will make quarterly cash distributions to our unitholders, and we have no legal obligation to do so.

In an effort to achieve greater financial and liquidity flexibility during the COVID-19 pandemic, on August 3, 2020, each of the members of the board of managers of Ciner Wyoming approved a suspension of quarterly distributions to its members. In addition, effective August 3, 2020, in connection with the quarterly distribution for the quarter ended June 30, 2020, each of the members of the board of directors of our general partner approved a suspension of quarterly distributions to our unitholders.

In March 2021, the board of managers of Ciner Wyoming approved a special $8.0 million distribution to, amongst other things, provide the Partnership with funds to retire the Ciner Resources Credit Facility.

Management andIn October 2021, the board of directorsmanagers of our general partner will continue to evaluate, onCiner Wyoming approved a quarterly basis, whether it is appropriate to reinstate a$15.0 million distribution to ourthe members of Ciner Wyoming.

On October 29, 2021, the Partnership declared its third quarter 2021 quarterly cash distribution of $0.340 per unit. The quarterly cash distribution is payable on November 19, 2021 to unitholders which will be dependent in partof record on our cash reserves, liquidity, total debt levels and anticipated capital expenditures.November 9, 2021.

Our partnership agreement provides that our general partner initially will be entitled to 2.0% of all distributions that we make prior to our liquidation. Our general partner has the right, but not the obligation, to contribute up to a proportionate amount of capital to us in order to maintain its 2.0% general partner interest if we issue additional units. Our general partner’s approximate 2.0% interest, and

the percentage of our cash distributions to which our general partner is entitled from such approximate 2.0% interest, will be proportionately reduced if we issue additional units in the future (other than the issuance of common units upon a reset of the IDRs), and our general partner does not contribute a proportionate amount of capital to us in order to maintain its approximate 2.0% general partner interest. Our partnership agreement does not require that our general partner fund its capital contribution with cash. It may, instead, fund its capital contribution by contributing to us common units or other property.

IDRs represent the right to receive increasing percentages (13.0%, 23.0% and 48.0%) of quarterly distributions from operating surplus after we have achieved the minimum quarterly distribution and the target distribution levels. Our general partner currently holds the IDRs, but may transfer these rights separately from its general partner interest, subject to certain restrictions in our partnership agreement.

The following table illustrates the percentage allocations of distributions from operating surplus between the unitholders and our general partner based on the specified target distribution levels. The amounts set forth under the column heading "Marginal“Marginal Percentage Interest in Distributions"Distributions” are the percentage interests of our general partner and the unitholders in any distributions from operating surplus we distribute up to and including the corresponding amount in the column "Total“Total Quarterly Distribution per Unit Target Amount."” The percentage interests shown for our unitholders and our general partner for the minimum quarterly distribution also apply to quarterly distribution amounts that are less than the minimum quarterly distribution.distribution including for the declared quarterly distributions of $0.340 per unit for the third quarter of 2021. Under our partnership agreement, our general partner has considerable discretion to determine the amount of available cash (as defined therein) for distribution each quarter to the Partnership’s unitholders, including discretion to establish cash reserves that would limit the amount of available cash eligible for distribution to the Partnership’s unitholders for any quarter. The Partnership does not guarantee that it will pay the target amount of the minimum quarterly distribution listed below (or any distributions) on its units in any quarter. The percentage interests set forth below for our general partner (1) include a 2.0% general partner interest, (2) assume that our general partner has contributed any additional capital necessary to maintain its 2.0% general partner interest, (3) assume that our general partner has not transferred its IDRs, and (4) assume that we do not issue additional classes of equity securities.

Inventory consisted of the following:

Long-term debt, net of debt issuance costs, consisted of the following:

Aggregate maturities required on long-term debt as of JuneSeptember 30, 2021 are due in future years as follows:

On March 26, 2020, Ciner Wyoming and Banc of America Leasing & Capital, LLC, as lender (the “Equipment Financing Lender”), entered into an equipment financing arrangement (the “Ciner Wyoming Equipment Financing Arrangement”) including a Master Loan and Security Agreement, dated as of March 25, 2020 (as amended, the “Master Agreement”) and an Equipment Security Note Number 001, dated as of March 25, 2020 (the “Initial Secured Note”), which provides the terms and conditions for the debt financing of certain equipment related to Ciner Wyoming’s new natural gas-fired turbine co-generation facility that became operational in March 2020. Each equipment financing under the Ciner Wyoming Equipment Financing Arrangement will be evidenced by the execution of one or more equipment notes (including the Initial Secured Note) that incorporate the terms and conditions of the Master Agreement (each, an “Equipment Note”). In order to secure the payment and performance of Ciner Wyoming’s obligations under the Ciner Wyoming Equipment Financing Arrangement and other debt obligations owed by Ciner Wyoming to the Equipment Financing Lender, Ciner Wyoming granted to the Equipment Financing Lender a continuing security interest in all of Ciner Wyoming’s right, title and interest in and to the Equipment (as defined in the Master Agreement) and certain related collateral.

The Ciner Wyoming Equipment Financing Arrangement (1) prior to the Third Amendment to the Master Agreement (as defined below), incorporated all covenants in the Prior Ciner Wyoming Credit Facility, now or hereinafter existing, or in any applicable replacement credit facility accepted in writing by the Equipment Financing Lender, that are based upon a specified level or ratio relating to assets, liabilities, indebtedness, rentals, net worth, cash flow, earnings, profitability, or any other accounting-based measurement or test, and after the Third Amendment to the Master Agreement incorporates all covenants in the Ciner Wyoming Credit Facility (as defined below), now or hereinafter existing, or in any applicable replacement credit facility accepted in writing by the Equipment Financing Lender, that are based upon a specified level or ratio relating to assets, liabilities, indebtedness, rentals, net worth, cash flow, earnings, profitability, or any other accounting-based measurement or test, and (2) includes customary events of default subject to applicable grace periods, including, among others, (i) payment defaults, (ii) certain mergers or changes inthe occurrence of a change of control as a result of which Ciner Wyoming is directly or indirectly controlled by persons or entities not currently directly or indirectly controlling Ciner Wyoming, (iii) cross defaults with certain other indebtedness (a) to which the Equipment Financing Lender is a party or (b) to third parties in excess of $10 million, and (iv) the commencement of certain insolvency proceedings or related events identified in the Master Agreement. Upon the occurrence of an event of default, in its discretion, the Equipment Financing Lender may exercise certain remedies, including, among others, the ability to accelerate the maturity of any Equipment Note such that all amounts thereunder will become immediately due and payable, to take possession of the Equipment identified in any Equipment Note, and to charge Ciner Wyoming a default rate of interest on all then outstanding or thereafter incurred obligations under the Ciner Wyoming Equipment Financing Arrangement.

Among other things, the Initial Secured Note:

In connection with the Second Ciner Wyoming Amendment to the Master Agreement (as defined below), the Master Agreement was amended to incorporate, among other things, the modified covenants set forth in the Second Ciner Wyoming Amendment to the Master Agreement related to consolidated leverage ratios of Ciner Wyoming.

Ciner Wyoming’s balance under the Ciner Wyoming Equipment Financing Arrangement as of JuneSeptember 30, 2021 was $26.2$25.5 million ($26.025.3 million net of financing costs).

Management is not aware of any current circumstances that would result in an event of default under the Ciner Wyoming Equipment Financing Arrangement in the next twelve months.As of June 30, 2021, Ciner Wyoming was in compliance with all financial covenants of the Ciner Wyoming Equipment Financing Arrangement, as amended.

On August 1, 2017, Ciner Wyoming entered into a Credit Agreement (as amended, the “Ciner“Prior Ciner Wyoming Credit Facility ” and together with the Ciner Wyoming Equipment Financing Arrangement, the “Ciner Wyoming Debt Agreements”Facility”) with each of the lenders listed on the respective signature pages thereof and PNC Bank, National Association (“PNC Bank”), as administrative agent, swing line lender and a Letter of Credit (“L/C”) issuer. The Prior Ciner Wyoming Credit Facility iswas a $225.0 million senior secured revolving credit facility with a syndicate of lenders, which will maturewould have matured on the fifth anniversary of the closing date of such credit facility. The Prior Ciner Wyoming Credit Facility providesprovided for revolving loans to fund working capital requirements, and capital expenditures, to consummate permitted acquisitions and for all other lawful partnership purposes. The Prior Ciner Wyoming Credit Facility hashad an accordion feature that allowsallowed Ciner Wyoming to increase the available revolving borrowings under the facility by up to an additional $75.0 million, subject to Ciner Wyoming receiving increased commitments from existing lenders or new commitments from new lenders and the satisfaction of certain other conditions. In addition, the Prior Ciner Wyoming Credit Facility includesincluded a sublimit up to $20.0 million for same-day swing line advances and a sublimit up to $40.0 million for letters of credit.

In addition, the Prior Ciner Wyoming Credit Facility containscontained various covenants and restrictive provisions that limitlimited (subject to certain exceptions) Ciner Wyoming’s ability to:

The Prior Ciner Wyoming Credit Facility containscontained events of default customary for transactions of this nature, including (i) failure to make payments required under the Prior Ciner Wyoming Credit Facility, (ii) failure to comply with covenants and financial ratios in the Prior Ciner Wyoming Credit Facility, (iii) the occurrence of a change of control, (iv) the institution of insolvency or similar proceedings against Ciner Wyoming and (v) the occurrence of a default under any other material indebtedness Ciner Wyoming may have. Upon the occurrence and during the continuation of an event of default, subject to the terms and conditions of the Ciner Wyoming Credit Facility, the administrative agent shall, at the request of the Required Lenders (as defined in the Ciner Wyoming Credit Facility), or

Loans under the Prior Ciner Wyoming Credit Facility bear interest at Ciner Wyoming’s option at either:

The Prior Ciner Wyoming Credit Facility hashad an interest rate floor of 0.50%.

The unused portion of the Prior Ciner Wyoming Credit Facility iswas subject to a per annum commitment fee and the applicable margin of the interest rate under the Prior Ciner Wyoming Credit Facility will bewas determined as follows:

In connection with the Facilities Agreement Default (defined below), Ciner Wyoming entered into a Third Amendment to the Prior Ciner Wyoming Credit Facility (the “Third Amendment”) in order to prevent an event of default thereunder that could have otherwise resulted from the Facilities Agreement lenders exercising the Equity Default Remedy as a remedy for the Facilities Agreement Default, or a future event of default under the Facilities Agreement. Such amendment (i) modified the definition of change of control to exclude any change in control that could arise from lender actions under the Facilities Agreement relating to any events of default under the Facilities Agreement; (ii) reduced the leverage ratio to 3.00 to 1.00 for the quarter ended June 30, 2021 and each fiscal quarter thereafter (from amendments prior to the Third Amendment, a leverage ratio of 4.50 to 1.0 or lower was required for the quarter ended March 31, 2021 and an interest coverage ratio of not less than 3.00 to 1.0 is required); and (iii) added a covenant that any borrowings under the Wyoming Credit Facility are secured by substantially all of Ciner Wyoming’s personal property, subject to certain exclusions. As of September 30, 2021, Ciner Wyoming was in compliance with all financial covenants of the Prior Ciner Wyoming Credit Facility.

On March 8, 2021, the Partnership terminated the Ciner Resources Credit Facility; the PartnershipFacility and repaid in full its obligations thereunder.

Ciner Enterprises, the entity that indirectly owns and controls the Partnership, has a credit agreement and certain related finance documents, to which WE Soda and Ciner Enterprises (as borrowers), and KEW Soda, WE Soda, WE Soda Kimya Yatırımları Anonim Şirketi, Ciner Kimya Yatırımları Sanayi ve Ticaret Anonim Şirketi, Ciner Enterprises, Ciner Holdings and Ciner Corp (as original guarantors and together with the borrowers, the “Ciner Obligors”), are parties (as amended and restated or otherwise modified, the “Facilities Agreement”). The Facilities Agreement expires on August 1, 2025.

Even though neither we nor Ciner Wyoming are a party or a guarantor under the Facilities Agreement while any amounts are outstanding under the Facilities Agreement we will be indirectly affected by certain affirmative and restrictive covenants that apply to WE Soda and its subsidiaries (which include us). Besides the customary covenants and restrictions, the Facilities Agreement includes provisions that, without a waiver or amendment approved by lenders, whose commitments are more than 66-2/3% of the total commitments under the Facilities Agreement to undertake such action, would (i) prevent certain transactions (including loans) with our affiliates, including such transactions that could reasonably be expected to materially and adversely affect the interests of certain finance parties, (ii) restrict the ability to amend our limited partnership agreement or the general partner’s limited liability company agreement or our other constituency documents if such amendment could reasonably be expected to materially and adversely affect the interests of the lenders to the Facilities Agreement, (iii) restrict the amount of certain of our capital expenditures if certain ratios are not achieved by the Ciner Obligors thereunder and (iv) prevent actions that enable certain restrictions or prohibitions on our ability to upstream cash (including via distributions) to the borrowers under the Facilities Agreement. Based onThe restrictions to the Partnership’s expansion capital expenditures, which existed at December 31, 2020, March 31, 2021, and June 30, 2021, no longer exists as of September 30, 2021 as the Ciner Obligors’ applicable ratios currently,met the Partnership’s expansion capital expenditures are prohibited until the Ciner Obligors’ applicable ratios are at specified levels pursuant to the Facilities Agreement.

In addition, Ciner Enterprises’ ownership in Ciner Holdings is subject to a lien under the Facilities Agreement, which enables the lenders under the Facilities Agreement to foreclose on such collateral and take control of Ciner Holdings, which controls the general partner of the Partnership, if any of the borrowers or guarantors under the Facilities Agreement are unable to satisfy its respective obligations under the Facilities Agreement.

Other non-current liabilities consisted of the following:

A reconciliation of the Partnership’s reclamation reserve liability is as follows:

The Partnership participates in various benefit plans offered and administered by Ciner Corp and is allocated its portions of the annual costs related thereto. The specific plans are as follows:

The postretirement benefits are accounted for by Ciner Corp on an accrual basis over an employee’s period of service. The postretirement plan, excluding pensions, are not funded, and Ciner Corp has the right to modify or terminate the plan. The Ciner Corp post-retirement plan had a net unfunded liability of $12.9 million and $13.1 million as of JuneSeptember 30, 2021 and December 31, 2020.2020, respectively.

The Partnership’s allocated portions of postretirement costs were $0.3$0.2 million for each of the three months ended JuneSeptember 30, 2021 and 2020 and were $0.5$0.7 million and $1.0 million for each of the sixnine months ended JuneSeptember 30, 2021 and 2020.2020, respectively.

In July 2013, our general partner established the Ciner Resource Partners LLC 2013 Long-Term Incentive Plan (as amended to date, the “Plan” or “LTIP”). Historically, the Plan was intended to provide incentives that will attract and retain valued employees, officers, consultants and non-employee directors by offering them a greater stake in our success and a closer identity with us, and to encourage ownership of our common units by such individuals. The Plan provides for awards in the form of common units, phantom units, distribution equivalent rights (“DERs”), cash awards and other unit-based awards.

All employees, officers, consultants and non-employee directors of us and our parents and subsidiaries are eligible to be selected to participate in the Plan. As of JuneSeptember 30, 2021, subject to further adjustment as provided in the Plan, a total of 0.7 million common units were available for awards under the Plan. Any common units tendered by a participant in payment of the tax liability with respect to an award, including common units withheld from any such award, will not be available for future awards under the Plan. Common units awarded under the Plan may be reserved or made available from our authorized and unissued common units or from common units reacquired (through open market transactions or otherwise). Any common units issued under the Plan through the assumption or substitution of outstanding grants from an acquired company will not reduce the number of common units available for awards under the Plan. If any common units subject to an award under the Plan are forfeited, any common units counted against the number of common units available for issuance pursuant to the Plan with respect to such award will again be available for awards under the Plan. The Partnership has made a policy election to recognize forfeitures as they occur in lieu of estimating future forfeiture activity under the Plan.

The following table presents a summary of activity on the Time Restricted Unit Awards:

We utilized a Monte Carlo simulation model to estimate the grant date fair value of TR Performance Unit Awards granted to employees, adjusted for market conditions. This type of award requires the input of highly subjective assumptions, including expected volatility and expected distribution yield. Historical and implied volatilities were used in estimating the fair value of these awards.

The following table presents a summary of activity on the TR Performance Unit Awards:

Vested 2019 Performance Unit Awards will be settled in our common units, with the number of such common units payable under the award for a given year in the Measurement Period to be calculated by multiplying the target number provided in the corresponding 2019 Performance Unit Award agreement by a payout multiplier, which may range from 0%-200% in each case, as determined by aggregating the corresponding weighted average assigned to the Performance Metrics. The 2019 Performance Unit Awards also contain DERs and entitle the recipient the right to receive an amount equal to the accumulated cash distributions made during the period with respect to each common unit issued. Upon vesting of the 2019 Performance Unit Awards, the award recipient is entitled to receive a cash payment equal to the sum of the distribution equivalents accumulated with respect to vested 2019 Performance Unit Awards during the period beginning on January 1, 2019 and ending on the applicable vesting date. The 2019 Performance Unit Awards granted to award recipients during 2019 have a performance cycle that began on January 1, 2019 and will end on December 31, 2021.

The following table presents a summary of activity on the 2019 Performance Unit Awards for the period:

A summary of the Partnership’s unrecognized compensation expense for its unvested restricted time and performance-based units, and the weighted-average periods over which the compensation expense is expected to be recognized are as follows: