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TABLE OF CONTENTS
FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA INDEX TO FINANCIAL STATEMENTS
TABLE OF CONTENTS
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Table of Contents

As filed with the Securities and Exchange Commission on September 15,November 9, 2020

Registration No. 333-            333-248803


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549



Amendment No. 3
to

FORM S-4
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933



TRINE ACQUISITION CORP.
(Exact name of registrant as specified in its charter)



Delaware 6770 82-2044042
(State or other jurisdiction of
incorporation or organization)
 (Primary Standard Industrial
Classification Code Number)
 (I.R.S. Employer
Identification Number)

405 Lexington Avenue, 48th Floor
New York, NY 10174
Telephone: (212) 503-2855
(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)



Mark J. Coleman, Esq.
Executive Vice President and General Counsel
405 Lexington Avenue, 48th Floor
New York, NY 10174
Telephone: (212) 503-2850
(Name, address, including zip code, and telephone number, including area code, of agent for service)



Copies to:

Edward Ackerman
Jeffrey D. Marell
Raphael M. Russo
Paul, Weiss, Rifkind, Wharton &
Garrison LLP
1285 Avenue of the Americas
New York, NY 10019
Telephone: (212) 373-3000
 Ric Fulop
Meg Broderick
Elizabeth Linardos
Desktop Metal, Inc.
63 Third Avenue
Burlington, MA 01803
Telephone: (978) 224-1244
 John H. Chory
Susan L. Mazur
Ryan J. Maierson
Emily E. Taylor
Latham & Watkins LLP
200 Clarendon Street, 27th Floor
Boston, MA 02116
Telephone: (617) 948-6000



Approximate date of commencement of proposed sale of the securities to the public:
As soon as practicable after this registration statement becomes effective and upon completion of the merger.

          If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box:    o

          If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

          If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

          Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or 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):

Large accelerated filer o Accelerated filer o Non-accelerated filer ý Smaller reporting company o

Emerging growth company ý

          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 7(a)(2)(B) of the Securities Act. o

          If applicable, place an ý in the box to designate the appropriate rule provision relied upon in conducting this transaction:

          Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer) o

          Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer) o



          The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

CALCULATION OF REGISTRATION FEE

        
 
Title of each class of securities
to be registered

 Amount to be
registered

 Proposed maximum
offering price per
unit

 Proposed maximum
aggregate offering
price

 Amount of
registration fee

 

Class A Common Stock, par value $0.0001 per share

 183,000,000(1) N/A $2,100,840,000(2) $272,690(3)

 

(1)
Based on the maximum number of common stock, par value $0.0001 per share ("Class A common stock"), of the registrant estimated to be issued in connection with the merger described herein (the "Business Combination"). This number is based on the product of (a) the sum of (i) 31,716,208, the aggregate number of shares of common stock, par value $0.0001 per share, of Desktop Metal, Inc. ("Desktop Metal"), outstanding as of August 26, 2020, which number excludes shares of Desktop Metal common stock owned by Trine Acquisition Corp. ("Trine") or Desktop Metal (as treasury stock or otherwise), (ii) 100,038,109, the aggregate number of shares of preferred stock, par value $0.0001 per share, of Desktop Metal, outstanding as of August 26, 2020, which number excludes shares of Desktop Metal common stock owned by Trine or Desktop Metal (as treasury stock or otherwise), (iii) 566,947, the aggregate number of shares of Desktop Metal common stock issuable upon the cashless exercise of the Desktop Metal warrants outstanding as of August 26, 2020 and (iv) 17,416,528, the aggregate number of shares of common stock of Desktop Metal issuable pursuant to outstanding stock options, restricted stock awards and restricted stock unit awards of Desktop Metal outstanding as of August 26, 2020, and (b) an exchange ratio of 1.221218442.

(2)
Pursuant to Rules 457(c), 457(f)(1) and 457(f)(3) promulgated under the Securities Act and solely for the purpose of calculating the registration fee, the proposed maximum aggregate offering price is an amount equal to $2,100,840,000, calculated as the product of (i) 183,000,000 shares of Class A common stock, the estimated maximum number of shares of Class A common stock that may be issued in the Business Combination in exchange for cancelled shares of common stock and preferred stock and awards of Desktop Metal, Inc. (calculated as shown in note (1) above) and (ii) $11.48, the average of the high and low trading prices of Class A common stock on September 9, 2020 (within five business days prior to the date of this Registration Statement).

(3)
Calculated pursuant to Rule 457 of the Securities Act by multiplying the proposed maximum aggregate offering price of securities to be registered by 0.0001298.

   


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The information in this preliminary proxy statement/consent solicitation statement/prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary proxy statement/consent solicitation statement/prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

PRELIMINARY PROXY STATEMENT/CONSENT SOLICITATION STATEMENT/PROSPECTUS
DATED SEPTEMBER 15,NOVEMBER 9, 2020, SUBJECT TO COMPLETION

GRAPHIC

Dear Stockholder:

           On August 26, 2020, Trine Acquisition Corp. ("Trine") and Sparrow Merger Sub, Inc. ("Merger Sub"), a wholly owned subsidiary of Trine, entered into an Agreement and Plan of Merger (as it may be amended and/or restated from time to time, the "Merger Agreement") with Desktop Metal, Inc. ("Desktop Metal"). If the Merger Agreement is adopted by Desktop Metal's stockholders, the Merger Agreement and the transactions contemplated thereby, including the issuance of Class A common stock to be issued as the merger consideration, is approved by Trine's stockholders, and the business combination is subsequently completed, Merger Sub will merge with and into Desktop Metal with Desktop Metal surviving the merger as a wholly owned subsidiary of Trine (the "Business Combination").

           Each share of each series of Desktop Metal preferred stock issued and outstanding immediately prior to the effective time of the Business Combination (other than shares owned by Desktop Metal as treasury stock or dissenting shares) will be converted into the right to receive a number of shares of Trine Class A common stock (deemed to have a value of $10 per share) with an aggregate implied value equal to the product of the liquidation amount (as described in Desktop Metal's certificate of incorporation ("Desktop Metal's charter")) for such series of preferred stock multiplied by the number of shares of such series of Desktop Metal preferred stock outstanding immediately prior to the effective time as if the Business Combination were a Deemed Liquidation Event (as defined in Desktop Metal's charter) (the "aggregate preferred stock consideration") divided by the number of shares of such series of Desktop Metal preferred stock outstanding immediately prior to the effective time of the Business Combination.

           Each share of Desktop Metal common stock issued and outstanding immediately prior to the effective time of the Business Combination (other than shares owned by Desktop Metal as treasury stock or dissenting shares) will be converted into the right to receive a number of shares of Trine Class A common stock (deemed to have a value of $10 per share) with an aggregate implied value equal to $1,830,000,000 minus the aggregate implied value of the aggregate preferred stock consideration divided by the number of shares of Desktop Metal common stock outstanding on a fully diluted basis immediately prior to the effective time of the Business Combination.

           Based on the number of shares of Desktop Metal preferred stock outstanding, the number of shares of Desktop Metal common stock outstanding and the number of outstanding stock options, warrants, restricted stock awards and restricted stock unit awards of Desktop Metal, in each case as of ,September 3, 2020, (i) the estimated exchange ratio of shares of Trine's Class A common stock for each share of Desktop Metal common stock and preferred stock is 1.221218442, (ii) the total number of shares of Trine's Class A common stock expected to be issued to holders of shares of Desktop Metal capital stock in connection with the closing of the Business Combination is approximately ,161.2 million, (iii) and holders of shares of Desktop Metal commoncapital stock as of immediately prior to the closing of the Business Combination will hold, in the aggregate, approximately %71.3% of the issued and outstanding shares of Trine's Class A common stock immediately following the closing of the Business Combination. Trine's units, Class A common stock and public warrants are publicly traded on the New York Stock Exchange (the "NYSE"). We intend to apply to list Trine's Class A common stock and public warrants on the NYSE under the symbols "DM" and "DM.WS", respectively, upon the closing of the Business Combination. Trine will not have units traded following closing of the Business Combination. Following the closing of the Business Combination, Trine intends to change its name to Desktop Metal, Inc.

           In connection with the execution of the Merger Agreement, Trine entered into subscription agreements (together with any subscription agreements to be entered into by Trine following the execution of the Merger Agreement, collectively, the "Subscription Agreements") with certain parties subscribing for shares of Class A common stock (together with any parties entering into Subscription Agreements following the execution of the Merger Agreement, the "Subscribers") pursuant to which the Subscribers have agreed to purchase, and Trine has agreed to sell the Subscribers, an aggregate of 27,497,500 shares of Class A common stock, for a purchase price of $10.00 per share and at an aggregate purchase price of $274,975,000. The obligations to consummate the transactions contemplated by the Subscription Agreements are conditioned upon, among other things, customary closing conditions and the consummation of the transactions contemplated by the Merger Agreement. See "Other Agreements—Subscription Agreements".

           Trine will hold a special meeting of stockholders (the "Special Meeting") to consider matters relating to the proposed Business Combination. Trine and Desktop Metal cannot complete the Business Combination unless Trine's stockholders consent to the approval of the Merger Agreement and the transactions contemplated thereby, including the issuance of Trine's Class A common stock to be issued as the merger consideration, and Desktop Metal's stockholders consent to adoption and approval of the Merger Agreement and the transactions contemplated thereby. Trine and Desktop Metal are sending you this proxy statement/consent solicitation statement/prospectus to ask you to vote in favor of these and the other matters described in this proxy statement/consent solicitation statement/prospectus.

           The Special Meeting will be held at 9:00 a.m. eastern time, on ,December 8, 2020, in virtual format.

           YOUR VOTE IS VERY IMPORTANT, REGARDLESS OF THE NUMBER OF SHARES OF COMMON STOCK YOU OWN. To ensure your representation at the Special Meeting, please complete and return the enclosed proxy card or submit your proxy by following the instructions contained in this proxy statement/consent solicitation statement/prospectus and on your proxy card. Please submit your proxy promptly whether or not you expect to attend the meeting. Submitting a proxy now will NOT prevent you from being able to vote in person (which would include presence at a virtual meeting) at the meeting. If you hold your shares in "street name", you should instruct your broker, bank or other nominee how to vote in accordance with the voting instruction form you receive from your broker, bank or other nominee.

           The Trine board of directors has unanimously approved the Merger Agreement and the transactions contemplated thereby and recommends that Trine stockholders vote "FOR" the approval of the Merger Agreement, "FOR" the issuance of Class A common stock to be issued as the merger consideration and "FOR" the other matters to be considered at the Special Meeting.

           The Desktop Metal board of directors has unanimously approved the Merger Agreement and the transactions contemplated thereby and recommends that Desktop Metal stockholders consent to adopt and approve in all respects the Merger Agreement and the transactions contemplated thereby (the "Desktop Metal Merger Proposal").

           This proxy statement/consent solicitation statement/prospectus provides you with detailed information about the proposed Business Combination. It also contains or references information about Trine and Desktop Metal and certain related matters. You are encouraged to read this proxy statement/consent solicitation statement/prospectus carefully. In particular, you should read the "Risk Factors" section beginning on page 2528 for a discussion of the risks you should consider in evaluating the proposed Business Combination and how it will affect you.

           If you have any questions regarding the accompanying proxy statement/consent solicitation statement/prospectus, you may contact Innisfree M&A Incorporated, Trine's proxy solicitor, at (877) 456-3463.

Sincerely,

Leo Hindery, Jr.
Chief Executive Officer and Chairman of the Board of Directors

/s/ LEO HINDERY, JR.

Leo Hindery, Jr.
Chief Executive Officer and Chairman of the Board of Directors

           Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the Business Combination, the issuance of shares of Class A common stock in connection with the Business Combination or the other transactions described in this proxy statement/consent solicitation statement/prospectus, or passed upon the adequacy or accuracy of the disclosure in this proxy statement/consent solicitation statement/prospectus. Any representation to the contrary is a criminal offense.

           This proxy statement/consent solicitation statement/prospectus is dated                        , 2020, and is first being mailed to stockholders of Trine on or about                        , 2020.


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TRINE ACQUISITION CORP.
405 Lexington Avenue, 48th Floor
New York, NY 10174

NOTICE OF
SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD ON ,DECEMBER 8, 2020

TO THE STOCKHOLDERS OF TRINE ACQUISITION CORP.

        NOTICE IS HEREBY GIVEN that a special meeting of stockholders of Trine Acquisition Corp. ("Trine"), a Delaware corporation, will be held at 9:00 a.m. eastern time, on ,December 8, 2020, in virtual format (the "Special Meeting"). You are cordially invited to attend the Special Meeting, which will be held for the following purposes:


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        These items of business are described in the attached proxy statement/consent solicitation statement/prospectus, which we encourage you to read in its entirety before voting. Only holders of record of Trine common stock at the close of business on ,October 30, 2020 (the "Trine Record Date") are entitled to notice of the Special Meeting and to vote and have their votes counted at the Special Meeting and any adjournments or postponements of the Special Meeting.

        Pursuant to Trine's Existing Charter, Trine will provide holders of its Public Shares with the opportunity to redeem their Public Shares for cash equal to their pro rata share of the aggregate amount on deposit in Trine's trust account, which holds the proceeds of the Trine IPO (as defined herein), as of two business days prior to the consummation of the transactions contemplated by the Business Combination Proposal (including interest earned on the funds held in the trust account and not previously released to Trine to pay its taxes). For illustrative purposes, based on funds in the trust account of approximately $$305.4 million on ,October 30, 2020, the estimated per share redemption price would have been approximately $            ,$10.17, excluding additional interest earned on the funds held in the trust account and not previously released to Trine to pay taxes. Public stockholders (as defined herein) may elect to redeem their shares even if they vote for the Business Combination Proposal. A holder of Public Shares, together with any affiliate of his or any other person with whom he is acting in concert or as a "group" (as defined in Section 13(d)(3) of the Exchange Act), will be restricted from seeking redemption rights with respect to more than 15% of the Public Shares without the consent of Trine. Accordingly, all Public Shares in excess of 15% held by a public stockholder, together with any affiliate of such holder or any other person with whom such holder is acting in concert or as a "group," will not be redeemed for cash without the consent of Trine. Trine Sponsor IH, LLC, a Delaware limited liability company (the "Sponsor"), and Trine's directors and officers have agreed to waive their redemption rights in connection with the consummation of the Business Combination with respect to any shares of common stock they may hold. Currently, the Initial Stockholders (as defined herein) own 20% of Trine common stock, consisting of the Founder Shares (as defined herein). Founder Shares will be excluded from the pro rata calculation used to determine the per-share redemption price. The Sponsor and Trine's directors and officers have agreed to vote any shares of common stock owned by them in favor of each of the proposals presented at the Special Meeting.

        After careful consideration, Trine's board of directors (the "Trine Board") has determined that the Business Combination Proposal, the Charter Amendment Proposal, the Charter Approval Proposal, the Governance Proposal, the Director Election Proposal, the Merger Issuance Proposal, the Subscription Agreements Proposal, the Incentive Plan Proposal and the Adjournment Proposal are fair to and in the best interests of Trine and its stockholders and unanimously recommends that you vote or give instruction to vote "FOR" the Business Combination Proposal, "FOR" the Charter Amendment Proposal, "FOR" the Charter Approval Proposal, "FOR" the Governance Proposal, "FOR" the Director Election Proposal, "FOR" the Merger Issuance Proposal, "FOR" the Subscription Agreements Proposal, "FOR" the Incentive Plan Proposal and "FOR" the Adjournment Proposal, if presented.

        Consummation of the Business Combination is conditional on approval of each of the Business Combination Proposal, the Charter Amendment Proposal, the Charter Approval Proposal, the Merger Issuance Proposal, the Subscription Agreements Proposal and the Incentive Plan Proposal. If any of these proposals is not approved, the other proposals, except the Adjournment Proposal, will not be presented to stockholders for a vote. The proxy statement/consent solicitation statement/prospectus accompanying this notice explains the Merger Agreement and the transactions contemplated thereby, as well as the proposals to be considered at the Special Meeting. Please review the proxy statement/consent solicitation statement/prospectus carefully.


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        All Trine stockholders are cordially invited to attend the Special Meeting in virtual format. Trine stockholders may attend, vote and examine the list of Trine stockholders entitled to vote at the Special Meeting by visiting https://www.cstproxy.com/trineacquisitioncorp/sm2020 and entering the control number found on their proxy card, voting instruction form or notice included in their proxy materials. In light of public health concerns regarding the coronavirus ("COVID-19") pandemic, the Special Meeting will be held in virtual meeting format only. You will not be able to attend the Special Meeting physically. To ensure your representation at the Special Meeting, you are urged to complete, sign, date and return the enclosed proxy card as soon as possible. If your shares are held in an account at a brokerage firm or bank, you must instruct your broker or bank on how to vote your shares.

        Your vote is important regardless of the number of shares you own. Whether you plan to attend the Special Meeting or not, please sign, date and return the enclosed proxy card as soon as possible in the envelope provided. If your shares are held in "street name" or are in a margin or similar account, you should contact your broker to ensure that votes related to the shares you beneficially own are properly counted.

        Thank you for your participation. We look forward to your continued support.

  By Order of the Board of Directors

 

 

/s/ LEO HINDERY, JR.

Leo Hindery, Jr.
Chief Executive Officer and Chairman of the Board of Directors

                        , 2020

        IF YOU RETURN YOUR PROXY CARD WITHOUT AN INDICATION OF HOW YOU WISH TO VOTE, YOUR SHARES WILL BE VOTED IN FAVOR OF EACH OF THE PROPOSALS. TO EXERCISE YOUR REDEMPTION RIGHTS, YOU MUST ELECT TO HAVE TRINE REDEEM YOUR SHARES FOR A PRO RATA PORTION OF THE FUNDS HELD IN THE TRUST ACCOUNT AND TENDER YOUR SHARES TO TRINE'S TRANSFER AGENT AT LEAST TWO (2) BUSINESS DAYS PRIOR TO THE VOTE AT THE SPECIAL MEETING. YOU MAY TENDER YOUR SHARES BY EITHER DELIVERING YOUR SHARE CERTIFICATE TO THE TRANSFER AGENT OR BY DELIVERING YOUR SHARES ELECTRONICALLY USING THE DEPOSITORY TRUST COMPANY'S DWAC (DEPOSIT AND WITHDRAWAL AT CUSTODIAN) SYSTEM. IF THE BUSINESS COMBINATION IS NOT COMPLETED, THEN THESE SHARES WILL NOT BE REDEEMED FOR CASH. IF YOU HOLD THE SHARES IN STREET NAME, YOU WILL NEED TO INSTRUCT THE ACCOUNT EXECUTIVE AT YOUR BANKS OR BROKERS TO WITHDRAW THE SHARES FROM YOUR ACCOUNT IN ORDER TO EXERCISE YOUR REDEMPTION RIGHTS. SEE "TRINE'S SPECIAL MEETING OF STOCKHOLDERS—REDEMPTION RIGHTS" FOR MORE SPECIFIC INSTRUCTIONS.


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LOGO

Desktop Metal, Inc.
63 Third Avenue
Burlington, MA 01803

NOTICE OF SOLICITATION OF WRITTEN CONSENT

To Stockholders of Desktop Metal, Inc.:

        Pursuant to an Agreement and Plan of Merger, dated as of August 26, 2020 (as it may be amended and/or restated from time to time, the "Merger Agreement"), by and among Trine Acquisition Corp. ("Trine"), Sparrow Merger Sub, Inc., a wholly owned subsidiary of Trine ("Merger Sub"), and Desktop Metal, Inc. ("Desktop Metal"), Merger Sub will be merged with and into Desktop Metal, with Desktop Metal surviving the merger as a wholly owned subsidiary of Trine (the "Business Combination").

        The accompanying proxy statement/consent solicitation statement/prospectus is being delivered to you on behalf of the Desktop Metal board of directors to request that Desktop Metal stockholders as of the record date of ,August 25, 2020 (the "Desktop Metal Record Date") approve the adoption of the Merger Agreement and the Business Combination by executing and returning the written consent furnished with the accompanying proxy statement/consent solicitation statement/prospectus (the "Desktop Metal Merger Proposal").

        The accompanying proxy statement/consent solicitation statement/prospectus describes the Merger Agreement, the Business Combination and the actions to be taken in connection with the Business Combination and provides additional information about the parties involved. Please give this information your careful attention. A copy of the Merger Agreement is attached as Annex A to the accompanying proxy statement/consent solicitation statement/prospectus.

        A summary of the appraisal that may be available to you is described in "Appraisal Rights" beginning on page 271273 of the accompanying proxy statement/consent solicitation statement/prospectus. Please note that if you wish to exercise appraisal rights you must not sign and return a written consent approving the adoption of the Merger Agreement and the Business Combination. However, so long as you do not return a written consent at all, it is not necessary to affirmatively vote against or disapprove the adoption of the Merger Agreement or the Business Combination. In addition, you must take all other steps necessary to perfect your appraisal rights.

        The Desktop Metal board of directors has considered the Business Combination and the terms of the Merger Agreement and unanimously approved and declared advisable the Merger Agreement and the Business Combination, upon the terms and conditions set forth in the Merger Agreement, and unanimously determined that the Merger Agreement and the Business Combination are in the best interests of Desktop Metal and its stockholders.

        Please complete, date and sign the written consent furnished with the accompanying proxy statement/consent solicitation statement/prospectus and return it promptly to Desktop Metal by one of the means described in "Desktop Metal's Solicitation of Written Consents" beginning on page 7376 of the accompanying proxy statement/consent solicitation statement/prospectus.

  By Order of the Board of Directors,

 

 

/s/ RIC FULOP

Ric Fulop
Chairman of the Board of Directors and Chief Executive Officer

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TABLE OF CONTENTS

 
 Page 

BASIS OF PRESENTATION AND GLOSSARY

  i 

TRADEMARKS, TRADE NAMES AND SERVICE MARKS

  iii 

QUESTIONS AND ANSWERS

  iv 

SUMMARY

  1 

Summary Historical Financial Data For Trine

  1517 

Summary Historical Financial Data For Desktop Metal

  1618 

Summary Unaudited Pro Forma Condensed Combined Financial Information

  1820 

Unaudited Historical Comparative and Pro Forma Combined Per Share Data of Trine and Desktop Metal

  2022 

MARKET PRICE AND DIVIDEND INFORMATION

  2124 

FORWARD-LOOKING STATEMENTS; MARKET, RANKING AND OTHER INDUSTRY DATA

  2225 

RISK FACTORS

  2528 

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

  6164 

DESKTOP METAL'S SOLICITATION OF WRITTEN CONSENTS

  7376 

TRINE'S SPECIAL MEETING OF STOCKHOLDERS

  7578 

PROPOSAL NO. 1—THE BUSINESS COMBINATION PROPOSAL

  8386 

PROPOSAL NO. 2—THE CHARTER AMENDMENT PROPOSAL

  8487 

PROPOSAL NO. 3—THE CHARTER APPROVAL PROPOSAL

  8588 

PROPOSAL NO. 4—THE GOVERNANCE PROPOSAL

  8891 

PROPOSAL NO. 5—THE DIRECTOR ELECTION PROPOSAL

  8992 

PROPOSAL NO. 6—THE MERGER ISSUANCE PROPOSAL

  9295 

PROPOSAL NO. 7—THE SUBSCRIPTION AGREEMENTS PROPOSAL

  9396 

PROPOSAL NO. 8—THE INCENTIVE PLAN PROPOSAL

  9497 

PROPOSAL NO. 9—THE ADJOURNMENT PROPOSAL

  103105 

INFORMATION ABOUT TRINE

  104106 

MANAGEMENT OF TRINE

  106108 

SELECTED HISTORICAL FINANCIAL INFORMATION OF TRINE

  113115 

TRINE'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

  114116 

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF TRINE AND THE POST-COMBINATION COMPANY

  119121 

INFORMATION ABOUT DESKTOP METAL

  122126 

MANAGEMENT OF DESKTOP METAL

  139143 

SELECTED HISTORICAL CONSOLIDATED FINANCIAL INFORMATION OF DESKTOP METAL

  148152 

DESKTOP METAL'S MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

  150153 

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF DESKTOP METAL

  167170 

MANAGEMENT OF THE POST-COMBINATION COMPANY FOLLOWING THE BUSINESS COMBINATION

  172175 

THE BUSINESS COMBINATION

  177180 

REGULATORY APPROVALS REQUIRED FOR THE BUSINESS COMBINATION

  197203 

ANTICIPATED ACCOUNTING TREATMENT

  198204 

PUBLIC TRADING MARKETS

  199205 

THE MERGER AGREEMENT

  200206 

OTHER AGREEMENTS

  224230 

MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES

  227233 

COMPARISON OF STOCKHOLDERS' RIGHTS

  234240 

DESCRIPTION OF CAPITAL STOCK OF THE POST-COMBINATION COMPANY

  251257 

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 Page 

CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

  256262 

PRICE RANGE OF SECURITIES AND DIVIDENDS

  263269 

EXPERTS

  264270 

LEGAL MATTERS

  265271 

OTHER MATTERS

  266272 

APPRAISAL RIGHTS

  267273 

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA INDEX TO FINANCIAL STATEMENTS

  F-1 

ANNEX A—AGREEMENT AND PLAN OF MERGER

  A-i 

ANNEX B—PROPOSED SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF TRINE

  B-1 

ANNEX C—GENERAL CORPORATION LAW OF THE STATE OF DELAWARE SECTION 262

  C-1 

ANNEX D—DESKTOP METAL, INC. 2020 INCENTIVE AWARD PLAN

  D-1 

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BASIS OF PRESENTATION AND GLOSSARY

        As used in this proxy statement/consent solicitation statement/prospectus, unless otherwise noted or the context otherwise requires, references to:

        "Available Cash" are to, as of immediately prior to the consummation of the Business Combination, the aggregate amount equal to (i) the cash available to be released from Trine's trust account; plus (ii) all other cash and cash equivalents; minus (iii) the aggregate amount of cash proceeds that will be required to satisfy the redemption of any Public Shares pursuant to the redemption offer (to the extent not already paid); plus (iv) $274,975,000;

        "Code" are to the Internal Revenue Code of 1986, as amended;

        "common stock" are to Trine's Class A common stock and Class B common stock;

        "Company Owners" are to the stockholders of Desktop Metal prior to the closing of the Business Combination;

        "Completion Window" are to the period following the completion of the Trine IPO at the end of which, if Trine has not completed its initial business combination, it will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem 100% of the outstanding Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the funds held in the trust account and not previously released to Trine to pay its taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish public stockholders' rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of Trine's remaining stockholders and the Trine Board, dissolve and liquidate, subject to Trine's obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. The Completion Window ends on March 19, 2021;

        "DGCL" are to the Delaware General Corporation Law, as amended;

        "Exchange Act" are to the Securities Exchange Act of 1934, as amended;

        "Founder Shares" are to shares of Trine's Class B common stock and Trine's Class A common stock issued upon the automatic conversion thereof at the time of Trine's initial business combination as provided herein. The 7,503,750 Founder Shares are held of record by the Initial Stockholders as of the Trine Record Date;

        "GAAP" are to generally accepted accounting principles in the United States, as applied on a consistent basis.

        "Initial Stockholders" are to the Sponsor and certain directors of Trine who hold Founder Shares as of the date of this proxy statement/consent solicitation statement/prospectus;

        "Investment Company Act" are to the Investment Company Act of 1940, as amended.

        "Post-Combination Company" are to Trine following the consummation of the Business Combination and the other transactions contemplated by the Merger Agreement.

        "private placement warrants" are to Trine's warrants issued to the Sponsor in a private placement simultaneously with the closing of the Trine IPO;

        "Public Shares" are to shares of Trine's Class A common stock sold as part of the units in the Trine IPO (whether they were purchased in the Trine IPO or thereafter in the open market);

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        "public stockholders" are to the holders of Trine's Public Shares, including the Sponsor and Trine's directors and officers to the extent the Sponsor and Trine's directors or officers purchase Public Shares; provided, that each of their status as a "public stockholder" shall only exist with respect to such Public Shares;

        "public warrants" are to Trine's warrants sold as part of the units in the Trine IPO (whether they were purchased in the Trine IPO or thereafter in the open market);

        "SEC" are to the Securities and Exchange Commission;

        "Securities Act" are to the Securities Act of 1933, as amended;

        "Sponsor" are to Trine Sponsor IH, LLC, a Delaware limited liability company;

        "Sponsor Agreement" are to the Sponsor Agreement, dated August 26, 2020, among Desktop Metal, Trine, the Sponsor and Trine's directors and officers;

        "Trine IPO" are to the initial public offering by Trine which closed on March 19, 2019;

        "Trine warrants" are to the warrants exercisable to purchase Class A common stock of Trine;

        "VWAP" are to volume weighted average price; and

        "warrants" are to the public warrants and the private placement warrants.

        Unless specified otherwise, amounts in this proxy statement/consent solicitation statement/prospectus are presented in United States ("U.S.") dollars.

        Defined terms in the financial statements contained in this proxy statement/consent solicitation statement/prospectus have the meanings ascribed to them in the financial statements.

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TRADEMARKS, TRADE NAMES AND SERVICE MARKS

        Trine, Desktop Metal and Desktop Metal's subsidiaries own or have rights to trademarks, trade names and service marks that they use in connection with the operation of their business. In addition, their names, logos and website names and addresses are their trademarks or service marks. Other trademarks, trade names and service marks appearing in this proxy statement/consent solicitation statement/prospectus are the property of their respective owners. Solely for convenience, in some cases, the trademarks, trade names and service marks referred to in this proxy statement/consent solicitation statement/prospectus are listed without the applicable ®, ™ and SM symbols, but they will assert, to the fullest extent under applicable law, their rights to these trademarks, trade names and service marks.

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QUESTIONS AND ANSWERS

        The questions and answers below highlight only selected information from this proxy statement/consent solicitation statement/prospectus and only briefly address some commonly asked questions about the Business Combination, the Special Meeting, the proposals to be presented at the Special Meeting, including with respect to the proposed Business Combination, and the consent solicitation. The following questions and answers do not include all the information that is important to Trine and Desktop Metal stockholders. You are urged to read carefully this entire proxy statement/consent solicitation statement/prospectus, including the Annexes and the other documents referred to herein, to fully understand the Business Combination, the voting procedures for the Special Meeting and the consent solicitation.

QUESTIONS AND ANSWERS ABOUT THE BUSINESS COMBINATION

Q:    WHAT IS THE BUSINESS COMBINATION?

A:
Trine, Merger Sub, a wholly owned subsidiary of Trine, and Desktop Metal have entered into the Merger Agreement, pursuant to which Merger Sub will merge with and into Desktop Metal with Desktop Metal surviving the merger as a wholly owned subsidiary of Trine.

Q:    WHY AM I RECEIVING THIS DOCUMENT?

A:
Trine is sending this proxy statement/consent solicitation statement/prospectus to its stockholders to help them decide how to vote their shares of Trine common stock with respect to the matters to be considered at the Special Meeting. Desktop Metal is also providing these consent solicitation materials to the holders of Desktop Metal common stock and preferred stock in order to solicit such holders' written consent to the Desktop Metal Merger Proposal.

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Q:    WHAT WILL DESKTOP METAL STOCKHOLDERS RECEIVE IN THE BUSINESS COMBINATION?

A:
If the Business Combination is completed, each share of each series of Desktop Metal preferred stock issued and outstanding immediately prior to the effective time of the Business Combination (other than shares owned by Desktop Metal as treasury stock or dissenting shares) will be converted into the right to receive a number of shares of Trine Class A common stock (deemed to have a value of $10 per share) with an aggregate implied value equal to the product of the liquidation amount (as described in Desktop Metal's charter) for such series of preferred stock multiplied by the number of shares of such series of Desktop Metal preferred stock outstanding immediately prior to the effective time as if the Business Combination were a Deemed Liquidation Event (as defined in Desktop Metal's charter) (the "aggregate preferred stock consideration") divided by the number of shares of such series of Desktop Metal preferred stock outstanding immediately prior to the effective time of the Business Combination.

Q:    WHEN DO YOU EXPECT THE BUSINESS COMBINATION TO BE COMPLETED?

A:
It is currently anticipated that the Business Combination will be consummated promptly following the Special Meeting, which is set for ,December 8, 2020; however, such meeting could be adjourned, as described herein. However, neither Trine nor Desktop Metal can assure you of when or if the Business Combination will be completed and it is possible that factors outside of the control of both companies could result in the Business Combination being completed at a different time or not at all. Trine must first obtain the approval of its stockholders for certain of the proposals set forth in this proxy statement/consent solicitation statement/prospectus for their approval, Desktop Metal must first obtain the written consent of its stockholders for the Business Combination and Trine and Desktop Metal must also first obtain certain necessary regulatory approvals and satisfy other closing conditions. See "The Merger Agreement—Conditions to the Business Combination" beginning on page 224.226.

Q:    WHAT HAPPENS IF THE BUSINESS COMBINATION IS NOT COMPLETED?

A:
If the Business Combination is not completed, Desktop Metal stockholders will not receive any consideration for their shares of Desktop Metal capital stock. Instead, Desktop Metal will remain an independent company. Under specified circumstances, Desktop Metal will be required to pay to

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QUESTIONS AND ANSWERS ABOUT TRINE'S SPECIAL STOCKHOLDER MEETING

Q:    WHEN AND WHERE IS THE SPECIAL MEETING?

A:
The Special Meeting will be held at 9:00 a.m. eastern time, on ,December 8, 2020, in virtual format. Trine stockholders may attend, vote and examine the list of Trine stockholders entitled to vote at the Special Meeting by visiting https://www.cstproxy.com/trineacquisitioncorp/sm2020 and entering the control number found on their proxy card, voting instruction form or notice included in their proxy materials. In light of public health concerns regarding the COVID-19 pandemic, the Special Meeting will be held in virtual meeting format only. You will not be able to attend the Special Meeting physically.

Q:    WHAT AM I BEING ASKED TO VOTE ON AND WHY IS THIS APPROVAL NECESSARY?

A:
The stockholders of Trine are being asked to vote on the following:

1.
A proposal to adopt the Merger Agreement and the transactions contemplated thereby. See the section entitled "Proposal No. 1—The Business Combination Proposal."

2.
A proposal to adopt the Charter Amendment in the form attached to the Merger Agreement as Exhibit D. See the section entitled "Proposal No. 2—The Charter Amendment Proposal."

3.
A proposal to adopt the Proposed Charter in the form attached hereto as Annex B. See the section entitled "Proposal No. 3—The Charter Approval Proposal."

4.
A separate proposal with respect to certain governance provisions in the Proposed Charter, which are being separately presented in accordance with SEC requirementsorder to give holders of Trine's common stock the opportunity to present their separate views on important corporate governance procedures and which will be voted upon on a non-binding advisory basis. See the section entitled "Proposal No. 4—The Governance Proposal."

5.
A proposal to elect 1110 directors to serve on the Board until the 2021 annual meeting of stockholders, in the case of Class I directors, the 2022 annual meeting of stockholders, in the case of Class II directors, and the 2023 annual meeting of stockholders, in the case of Class III directors, and, in each case, until their respective successors are duly elected and qualified. See the section entitled "Proposal No. 5—The Director Election Proposal."

6.
A proposal to approve, for purposes of complying with applicable listing rules of the NYSE, the issuance of shares of Class A common stock pursuant to the Business Combination. See the section entitled "Proposal No. 6—The Merger Issuance Proposal."

7.
A proposal to approve, for purposes of complying with applicable listing rules of the NYSE, the issuance of shares of Class A common stock pursuant to the Subscription Agreements. See the section entitled "Proposal No. 7—The Subscription Agreements Proposal."

8.
A proposal to approve and adopt the Incentive Plan. See the section entitled "Proposal No. 8—The Incentive Plan Proposal."

9.
A proposal to approve the adjournment of the Special Meeting to a later date or dates, if necessary, to permit further solicitation and vote of proxies in the event that there are insufficient votes for, or otherwise in connection with, the approval of the Business Combination Proposal, the Charter Amendment Proposal, the Charter Approval Proposal, the Merger Issuance Proposal, the Subscription Agreements Proposal or the Incentive Plan

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