Document:

Exhibit 10.1

 

March
14, 2019

 

Trine
Acquisition Corp.

405
Lexington Avenue, 48th Floor

New York, New York 10174

 

	Re:	Initial
    Public Offering

 

Ladies
and Gentlemen:

 

This
letter (this “Letter Agreement”) is being delivered to you in accordance with the
Underwriting Agreement (the “Underwriting Agreement”) entered into by and among Trine Acquisition Corp.,
a Delaware corporation (the “Company”), and BTIG, LLC and Cantor Fitzgerald & Co., as representatives
(the “Representatives”) of the several underwriters (each, an “Underwriter”
and collectively, the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”),
of 30,015,000 of the Company’s units (including up to 3,915,000 units that may be purchased to cover over-allotments, if
any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par value
$0.0001 per share (the “Common Stock”), and one half of one redeemable warrant. Each
whole warrant (each, a “Warrant”) entitles the holder thereof to purchase one share of Common Stock
at a price of $11.50 per share, subject to adjustment. The Units will be sold in the Public Offering pursuant to a registration
statement on Form S-1 and prospectus (the “Prospectus”) filed by the Company with the U.S. Securities
and Exchange Commission (the “Commission”) and the Company has applied to have the Units listed on the
New York Stock Exchange. Certain capitalized terms used herein are defined in paragraph 12 hereof.

 

In
order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each of Trine Sponsor
IH LLC (the “Sponsor”) and the undersigned individuals, each of whom is a member of the Company’s
board of directors and/or management team (each, an “Insider” and collectively, the “Insiders”),
hereby agrees with the Company as follows:

 

	 	1.	The
    Sponsor and each Insider agrees that if the Company seeks stockholder approval of a proposed Business Combination, then in
    connection with such proposed Business Combination, it, he or she shall (i) vote any shares of Capital Stock owned by it,
    him or her in favor of any proposed Business Combination and (ii) not redeem any shares of Common Stock owned by it, him or
    her in connection with such stockholder approval.  If the Company engages in a tender offer in connection with any proposed
    Business Combination, each Insider agrees that it, he or she will not seek to sell its, his or her shares of Common Stock
    to the Company in connection with such tender offer.

 

	 	2.	The Sponsor
    and each Insider hereby agrees that in the event that the Company fails to consummate a Business Combination within 24 months
    from the closing of the Public Offering, or such later period approved by the Company’s stockholders in accordance with
    the Company’s amended and restated certificate of incorporation (the “Charter”), the Sponsor and each Insider
    shall take all reasonable steps to cause the Company to (i) cease all operations except for the purpose of winding up, (ii)
    as promptly as reasonably possible but not more than 10 business days thereafter, subject to lawfully available funds therefor,
    redeem 100% of the Common Stock sold as part of the Units in the Public Offering (the “Offering Shares”),
    at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account (as defined below),
    including interest earned on the funds held in the Trust Account and not previously released to the Company to pay its taxes
    (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Offering Shares,
    which redemption will completely extinguish all Public Stockholders’ rights as stockholders (including the right to
    receive further liquidation distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible
    following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board
    of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Delaware law to provide
    for claims of creditors and other requirements of applicable law. The Sponsor and each Insider agrees not to propose any amendment
    to the Charter to modify the substance or timing of the ability of holders of Offering Shares to seek redemption in connection
    with a Business Combination or the Company’s obligation to redeem 100% of the Offering Shares if the Company does not
    complete a Business Combination by the date set forth in the Charter, unless the Company provides its public stockholders
    with the opportunity to redeem their shares of Common Stock upon approval of any such amendment 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 the Company to pay its taxes, divided by the number of then outstanding Offering
    Shares.

 

    1

     

    

 

The
Sponsor and each Insider acknowledges that it, he or she has no right, title, interest or claim of any kind in or to any monies
held in the Trust Account or any other asset of the Company as a result of any liquidation of the Company with respect to the
Founder Shares held by it, him or her. The Sponsor and each Insider hereby further waives, with respect to any shares of Common
Stock held by it, him or her, if any, any redemption rights it, he or she may have in connection with the consummation of a Business
Combination, including, without limitation, any such rights available in the context of a stockholder vote to approve such Business
Combination or a stockholder vote to approve an amendment to the Charter to modify the substance or timing of the Company’s
obligation to redeem 100% of the Offering Shares if the Company has not consummated a Business Combination within the time period
set forth in the Charter or in the context of a tender offer made by the Company to purchase shares of Common Stock (although
the Sponsor, the Insiders and their respective affiliates shall be entitled to redemption and liquidation rights with respect
to any Offering Shares it or they hold if the Company fails to consummate a Business Combination within the time period set forth
in the Charter).

  

	 	3.	During
    the period commencing on the effective date of the Underwriting Agreement and ending 180 days after such date, the Sponsor
    and each Insider shall not, without the prior written consent of the Representatives, (i) sell, offer to sell, contract or
    agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly
    or indirectly, or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within
    the meaning of Section 16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules
    and regulations of the Commission promulgated thereunder, with respect to any Units, shares of Common Stock, Founder Shares,
    Warrants or any securities convertible into, or exercisable, or exchangeable for, shares of Common Stock owned by it, him
    or her, (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic
    consequences of ownership of any Units, shares of Common Stock, Founder Shares, Warrants or any securities convertible into,
    or exercisable, or exchangeable for, shares of Common Stock owned by it, him or her, whether any such transaction is to be
    settled by delivery of such securities, in cash or otherwise, or (iii) publicly announce any intention to effect any transaction
    specified in clause (i) or (ii). Each of the Insiders and the Sponsor acknowledges and agrees that, prior to the effective
    date of any release or waiver, of the restrictions set forth in this paragraph 3 or paragraph 7 below, the Company shall announce
    the impending release or waiver by press release through a major news service at least two business days before the effective
    date of the release or waiver. Any release or waiver granted shall only be effective two business days after the publication
    date of such press release. The provisions of this paragraph will not apply if the release or waiver is effected solely to
    permit a transfer not for consideration and the transferee has agreed in writing to be bound by the same terms described in
    this Letter Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer.

 

    2

     

    

 

	 	4.	In the
    event of the liquidation of the Trust Account upon the failure of the Company to consummate its initial Business Combination
    within the time period set forth in the Charter, the Sponsor (the “Indemnitor”) agrees to indemnify
    and hold harmless the Company against any and all loss, liability, claim, damage and expense whatsoever (including, but not
    limited to, any and all legal or other expenses reasonably incurred in investigating, preparing or defending against any litigation,
    whether pending or threatened) to which the Company may become subject as a result of any claim by (i) any third party for
    services rendered or products sold to the Company or (ii) any prospective target business with which the Company has entered
    into a written letter of intent, confidentiality or other similar agreement or Business Combination agreement (a “Target”);
    provided, however, that such indemnification of the Company by the Indemnitor shall (x) apply only to the extent necessary
    to ensure that such claims by a third party or a Target do not reduce the amount of funds in the Trust Account to below the
    lesser of (i) $10.00 per Offering Share and (ii) the actual amount per Offering Share held in the Trust Account as of the
    date of the liquidation of the Trust Account, if less than $10.00 per Offering Share is then held in the Trust Account due
    to reductions in the value of the trust assets, less interest earned on the Trust Account which may be withdrawn to pay taxes,
    (y) shall not apply to any claims by a third party or a Target which executed a waiver of any and all rights to the monies
    held in the Trust Account (whether or not such waiver is enforceable) and (z) shall not apply to any claims under the Company’s
    indemnity of the Underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended.
    The Indemnitor shall have the right to defend against any such claim with counsel of its choice reasonably satisfactory to
    the Company if, within 15 days following written receipt of notice of the claim to the Indemnitor, the Indemnitor notifies
    the Company in writing that it shall undertake such defense.

 

	 	5.	To the
    extent that the Underwriters do not exercise their over-allotment option to purchase up to an additional 3,915,000 Units within
    45 days from the date of the Prospectus (and as further described in the Prospectus), the Sponsor agrees to forfeit, at no
    cost, a number of Founder Shares in the aggregate equal to 978,750 multiplied by a fraction, (i) the numerator of which is
    3,915,000 minus the number of Units purchased by the Underwriters upon the exercise of their over-allotment option, and (ii)
    the denominator of which is 3,915,000. The forfeiture will be adjusted to the extent that the over-allotment option is not
    exercised in full by the Underwriters so that the Initial Stockholders will own an aggregate of 20.0% of the Company’s
    issued and outstanding shares of Capital Stock after the Public Offering. 

 

    3

     

    

 

	 	6.	(a)
    The Sponsor and each Insider (other than the Company’s independent directors and any director affiliated with HPS Investment
    Partners, LLC, a member of the Sponsor, and its affiliates, or “HPS”) hereby agrees not to participate
    in the formation of, or become an officer or director of, any other any other special purpose acquisition company with a class
    of securities registered under the Exchange Act until the Company has entered into a definitive agreement regarding an initial
    Business Combination or unless the Company has failed to complete a Business Combination within the time period set forth
    in the Charter.

 

(b)
The Sponsor and each Insider hereby agrees and acknowledges that: (i) the Underwriters and the Company would be irreparably injured
in the event of a breach by such Sponsor or an Insider of its, his or her obligations under paragraphs 1, 2, 3, 4, 5, 6(a), 7(a),
and 7(b), as applicable, of this Letter Agreement (ii) monetary damages may not be an adequate remedy for such breach and (iii)
the non-breaching party shall be entitled to injunctive relief, in addition to any other remedy that such party may have in law
or in equity, in the event of such breach.

 

	 	7.	(a)
    The Sponsor and each Insider agrees that it, he or she shall not Transfer any Founder Shares (or shares of Common Stock issuable
    upon conversion thereof) until the earlier of (A) one year after the completion of the Company’s initial Business Combination
    or (B) subsequent to the Business Combination, (x) if the last sale price of the Common Stock equals or exceeds $12.00 per
    share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading
    days within any 30-trading day period commencing at least 150 days after the Company’s initial Business Combination
    or (y) the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar
    transaction that results in all of the Company’s stockholders having the right to exchange their shares of Common Stock
    for cash, securities or other property (the “Founder Shares Lock-up Period”).

 

(b)
The Sponsor and each Insider agrees that it, he or she shall not Transfer any Private Placement Warrants (or shares of Common
Stock issued or issuable upon the exercise of the Private Placement Warrants), until 30 days after the completion of a Business
Combination (the “Private Placement Warrants Lock-up Period”,
together with the Founder Shares Lock-up Period, the “Lock-up Periods”).

 

(c)
Notwithstanding the provisions set forth in paragraphs 7(a) and (b), Transfers of the Founder Shares, Private Placement Warrants
and shares of Common Stock issued or issuable upon the exercise or conversion of the Private Placement Warrants or the Founder
Shares and that are held by the Sponsor, any Insider or any of their permitted transferees (that have complied with this paragraph
7(c)), are permitted (a) to the Company’s officers or directors, any affiliate or family member of any of the Company’s
officers or directors or any affiliate of the Sponsor or to any member(s) of the Sponsor or any of their affiliates; (b) in the
case of an individual, by gift to a member of such individual’s immediate family or to a trust, the beneficiary of which
is a member of such individual’s immediate family, an affiliate of such individual or to a charitable organization; (c)
in the case of an individual, by virtue of laws of descent and distribution upon death of such individual; (d) in the case of
an individual, pursuant to a qualified domestic relations order; (e) by private sales or transfers made in connection with any
contingent forward purchase agreement or similar arrangement or in connection with the consummation of an initial Business Combination
at prices no greater than the price at which the shares or warrants were originally purchased; (f) in the event of the Company’s
liquidation prior to the completion of an initial Business Combination; or (g) by virtue of the laws of the State of Delaware
or the Sponsor’s limited liability company agreement upon dissolution of the Sponsor or (h) in the event of the Company’s
liquidation, merger, capital stock exchange, reorganization or other similar transaction which results in all of its stockholders
having the right to exchange their shares of Common Stock for cash, securities or other property subsequent to our completion
of our initial business combination ; provided, however, that in the case of clauses (a) through (e) or (g), these
permitted transferees must enter into a written agreement with the Company agreeing to be bound by the transfer restrictions herein.

 

    4

     

    

 

	 	8.	The
    Sponsor and each Insider represents and warrants that it, he or she has never been suspended or expelled from membership in
    any securities or commodities exchange or association or had a securities or commodities license or registration denied, suspended
    or revoked. Each Insider’s biographical information furnished to the Company (including any such information included
    in the Prospectus) is true and accurate in all respects and does not omit any material information with respect to the Insider’s
    background. Each Insider’s questionnaire furnished to the Company is true and accurate in all respects. Each Insider
    represents and warrants that: it, he or she is not subject to or a respondent in any legal action for, any injunction, cease-and-desist
    order or order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any
    jurisdiction; it, he or she has never been convicted of, or pleaded guilty to, any crime (i) involving fraud, (ii) relating
    to any financial transaction or handling of funds of another person, or (iii) pertaining to any dealings in any securities
    and it, he or she is not currently a defendant in any such criminal proceeding.

 

	 	9.	[intentionally
    omitted]

 

	 	10.	Except
    as disclosed in the Prospectus, neither the Sponsor nor any officer, nor any affiliate of the Sponsor or any officer, nor
    any director of the Company, shall receive from the Company any finder’s fee, reimbursement, consulting fee, monies
    in respect of any repayment of a loan or other compensation prior to, or in connection with any services rendered in order
    to effectuate, the consummation of the Company’s initial Business Combination (regardless of the type of transaction
    that it is), other than the following, none of which will be made from the proceeds held in the Trust Account prior to the
    completion of the initial Business Combination: repayment of a loan and advances up to an aggregate of $300,000 made to the
    Company by the Sponsor; payment to a member of the Sponsor for certain office space, utilities and secretarial and administrative
    support as may be reasonably required by the Company for a total of $35,000 per month; beginning in October 2018, payment
    to the Company’s President of a fee of approximately $12,500 per month, one-half of which will accrue and become payable
    following the IPO and the other one-half of which will accrue and become payable on the consummation of an initial Business
    Combination; beginning in November 2018, payments to the Company’s Chief Financial Officer of a fee of approximately
    $16,667 per month; in April 2019 such amount will increase to $25,000 per month, which will be payable until the earlier of
    the consummation of an initial Business Combination or the Company’s liquidation; reimbursement for any reasonable out-of-pocket
    expenses related to identifying, investigating and consummating an initial Business Combination, and repayment of loans, if
    any, and on such terms as to be determined by the Company from time to time, made by the Sponsor or any of the Company’s
    officers or directors to finance transaction costs in connection with an intended initial Business Combination, provided,
    that, if the Company does not consummate an initial Business Combination, a portion of the working capital held outside the
    Trust Account may be used by the Company to repay such loaned amounts so long as no proceeds from the Trust Account are used
    for such repayment. Up to $1,500,000 of such loans may be convertible into warrants at a price of $1.00 per warrant at the
    option of the lender. Such warrants would be identical to the Private Placement Warrants, including as to exercise price,
    exercisability and exercise period; the Company may pay HPS and its affiliated funds, separate accounts and other investment
    vehicles or entities (“HPS Funds”) affiliated with one of the Company’s directors, fees in
    connection with potentially providing financing or other investments in connection with the Company’s initial Business
    Combination. The amount of any fees the Company would pay to HPS or the HPS Funds will be subject to the review of the Company’s
    audit committee pursuant to the audit committee’s policies and procedures relating to transactions that may present
    conflicts of interest.

 

    5

     

    

 

	 	11.	The
    Sponsor and each Insider has full right and power, without violating any agreement to which it is bound (including, without
    limitation, any non-competition or non-solicitation agreement with any employer or former employer), to enter into this Letter
    Agreement and, as applicable, to serve as an officer and/or director on the board of directors of the Company and hereby consents
    to being named in the Prospectus as an officer and/or director of the Company.

 

	 	12.	As used
    herein, (i) “Business Combination” shall mean a merger, capital stock exchange,
    asset acquisition, stock purchase, reorganization or similar business combination, involving the Company and one or more businesses;
    (ii) “Capital Stock” shall mean, collectively, the Common Stock and the Founder Shares; (iii) “Founder Shares”
    shall mean (a) the 7,503,750 shares of the Company’s Class B common stock, par value $0.0001 per share, initially issued
    to the Sponsor (up to 978,750 Shares of which are subject to complete or partial forfeiture by the Sponsor if the over-allotment
    option is not exercised by the Underwriters) for an aggregate purchase price of $25,000, or $0.004 per share, prior to the
    consummation of the Public Offering; (iv) “Initial Stockholders” shall mean the Sponsor and
    any Insider that holds Founder Shares; (v) “Private Placement Warrants”
    shall mean the Warrants to purchase up to 7,720,000 shares of Common Stock of the Company (or 8,503,000 shares of Common Stock
    if the over-allotment option is exercised in full) that the Sponsor has agreed to purchase for an aggregate purchase price
    of $7,720,000 in the aggregate (or $8,503,000 if the over-allotment option is exercised in full), or $1.00 per Warrant, in
    a private placement that shall occur simultaneously with the consummation of the Public Offering; (vi) “Public Stockholders”
    shall mean the holders of securities issued in the Public Offering; (vii) “Trust Account” shall
    mean the trust fund into which a portion of the net proceeds of the Public Offering shall be deposited; and (viii) “Transfer”
    shall mean the (a) sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase
    or otherwise dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent
    position or liquidation with respect to or decrease of a call equivalent position within the meaning of Section 16 of the
    Exchange Act, and the rules and regulations of the Commission promulgated thereunder with respect to, any security, (b) entry
    into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership
    of any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c)
    public announcement of any intention to effect any transaction specified in clause (a) or (b).

 

    6

     

    

 

	 	13.	The
    Company will maintain an insurance policy or policies providing directors’ and officers’ liability insurance,
    and each Director shall be covered by such policy or policies, in accordance with its or their terms, to the maximum extent
    of the coverage available for any of the Company’s directors or officers.

 

	 	14.	This
    Letter Agreement constitutes the entire agreement and understanding of the parties hereto in respect of the subject matter
    hereof and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or
    oral, to the extent they relate in any way to the subject matter hereof or the transactions contemplated hereby. This Letter
    Agreement may not be changed, amended, modified or waived (other than to correct a typographical error) as to any particular
    provision, except by a written instrument executed by all parties hereto.

 

	 	15.	No party
    hereto may assign either this Letter Agreement or any of its rights, interests, or obligations hereunder without the prior
    written consent of the other parties. Any purported assignment in violation of this paragraph shall be void and ineffectual
    and shall not operate to transfer or assign any interest or title to the purported assignee. This Letter Agreement shall be
    binding on the Sponsor and each Insider and their respective successors, heirs and assigns and permitted transferees.

 

	 	16.	Nothing
    in this Letter Agreement shall be construed to confer upon, or give to, any person or corporation other than the parties hereto
    any right, remedy or claim under or by reason of this Letter Agreement or of any covenant, condition, stipulation, promise
    or agreement hereof. All covenants, conditions, stipulations, promises and agreements contained in this Letter Agreement shall
    be for the sole and exclusive benefit of the parties hereto and their successors, heirs, personal representatives and assigns
    and permitted transferees.

 

	 	17.	This Letter Agreement may
    be executed in any number of original or facsimile counterparts and each of such counterparts shall for all purposes be deemed
    to be an original, and all such counterparts shall together constitute but one and the same instrument.

 

	 	18.	This Letter Agreement shall
    be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity
    or enforceability of this Letter Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid
    or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Letter Agreement
    a provision as similar in terms to such invalid or unenforceable provision as may be possible and be valid and enforceable.

 

    7

     

    

 

	 	19.	This Letter Agreement shall
    be governed by and construed and enforced in accordance with the laws of the State of New York, without giving effect to conflicts
    of law principles that would result in the application of the substantive laws of another jurisdiction. The parties hereto
    (i) all agree that any action, proceeding, claim or dispute arising out of, or relating in any way to, this Letter Agreement
    shall be brought and enforced in the courts of New York City, in the State of New York, and irrevocably submit to such jurisdiction
    and venue, which jurisdiction and venue shall be exclusive and (ii) waive any objection to such exclusive jurisdiction and
    venue or that such courts represent an inconvenient forum.

 

	 	20.	Any notice, consent or request
    to be given in connection with any of the terms or provisions of this Letter Agreement shall be in writing and shall be sent
    by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or facsimile
    transmission.

 

	 	21.	This Letter Agreement shall
    terminate on the earlier of (i) the expiration of the Lock-up Periods or (ii) the liquidation of the Company; provided, however,
    that this Letter Agreement shall earlier terminate in the event that the Public Offering is not consummated and closed by
    June 30, 2019; provided further that paragraph 4 of this Letter Agreement shall survive such liquidation.

 

[Signature
Page Follows]

  

    8

     

    

 

Sincerely,

  

		TRINE SPONSOR
    IH, LLC

 

	 	By:	 /s/
    Leo Hindery Jr.
	 	 	Leo
                                         Hindery Jr., as Managing Member of

        Robin
        Trine Holdings, LLC,

        A
Member of Trine Sponsor IH, LLC

	 	 	 
	 	By:	 /s/ Tom Wasserman
	 	 	By:
                                         Tom Wasserman, as Managing Director of 

        HPS
        Investment Partners, LLC​,

        A
        Member of Trine Sponsor IH, LLC

  

	 	By:	 /s/ Leo
    Hindery, Jr.
	 	 	Name:  Leo
    Hindery, Jr.

 

	 	By:	 /s/ Ian
    G. Gilchrist
	 	 	Name:  Ian
    G. Gilchrist

 

	 	By:	 /s/ Mark
    J. Coleman
	 	 	Name:  Mark
    J. Coleman

 

	 	By:	 /s/ Pierre
    M. Henry
	 	 	Name:  Pierre
    M. Henry

 

	 	By:	 /s/  Josephine
    Linden
	 	 	Name:  Josephine
    Linden
	 	 	 
	 	By:	 /s/ Marc
    Nathanson
	 	 	Name:  Marc
    Nathanson

 

	 	By:	 /s/
    Kent R. Sander
	 	 	Name: 
    Kent R. Sander

 

	 	By:	 /s/ Tom
    Wasserman
	 	 	Name:  Tom
    Wasserman
	 	 	 
	 	By:	 /s/ Abbas
    F. Zuaiter
	 	 	Name:  Abbas
    F. Zuaiter

 

	Acknowledged
    and Agreed:	 
	 	 
	TRINE
    ACQUISITION CORP.	 
	 	 	 
	By:	/s/
    Leo Hindery, Jr.	 
	 	Name:
    Leo Hindery, Jr.	 
	 	Title:
    Chief Executive Officer	 

 

[Signature
Page to Letter Agreement]

 

 

9Exhibit
10.2

 

INVESTMENT
MANAGEMENT TRUST AGREEMENT

 

This
Investment Management Trust Agreement (this “Agreement”) is made effective as of March 14, 2019, by
and between Trine Acquisition Corp., a Delaware corporation (the “Company”), and Continental Stock Transfer
& Trust Company, a New York corporation (the “Trustee”).

 

WHEREAS,
the Company’s registration statements on Form S-1, File Nos. 333-229853 and 333-230295 (collectively, the “Registration Statement”)
and prospectus (the “Prospectus”) for the initial public offering of the Company’s units (the
“Units”), each of which consists of one share of the Company’s Class A common stock, par value
$0.0001 per share (the “Common Stock”), and one half of one redeemable warrant, each whole warrant entitling
the holder thereof to purchase one share of Common Stock (such initial public offering hereinafter referred to as the “Offering”),
has been declared effective as of the date hereof by the U.S. Securities and Exchange Commission; and

 

WHEREAS,
the Company has entered into an Underwriting Agreement (the “Underwriting Agreement”)
with BTIG, LLC and Cantor Fitzgerald & Co. as representatives (the “Representatives”) of the several
underwriters (the “Underwriters”) named therein; and

 

WHEREAS,
as described in the Prospectus, $261,000,000 of the gross proceeds of the Offering and sale of the Private Placement Warrants
(as defined in the Underwriting Agreement) (or $300,150,000, if the Underwriters’ over-allotment option is exercised in
full) will be delivered to the Trustee to be deposited and held in a segregated trust account located at all times in the United
States (the “Trust Account”) for the benefit of the Company and the holders of the
Common Stock included in the Units issued in the Offering as hereinafter provided (the amount to be delivered to the Trustee (and
any interest subsequently earned thereon) is referred to herein as the “Property,” the stockholders
for whose benefit the Trustee shall hold the Property will be referred to as the “Public Stockholders,”
and the Public Stockholders and the Company will be referred to together as the “Beneficiaries”);

 

WHEREAS,
pursuant to the Underwriting Agreement, a portion of the Property equal to $9,135,000 , or $10,505,250 if the Underwriters’
over-allotment option is exercised in full, is attributable to deferred underwriting discounts and commissions that will be payable
by the Company to the Underwriters upon and concurrently with the consummation of the Business Combination (as defined below)
(the “Deferred Discount”); and

 

WHEREAS,
the Company and the Trustee desire to enter into this Agreement to set forth the terms and conditions pursuant to which the Trustee
shall hold the Property.

 

NOW
THEREFORE, IT IS AGREED:

 

1.
Agreements and Covenants of Trustee. The Trustee hereby agrees and covenants to:

 

(a)
Hold the Property in trust for the Beneficiaries in accordance with the terms of this Agreement in the Trust Account established
by the Trustee in the United States at J.P. Morgan Chase Bank, N.A. and at a brokerage institution selected by the Trustee that
is reasonably satisfactory to the Company;

 

(b)
Manage, supervise and administer the Trust Account subject to the terms and conditions set forth herein;

 

(c)
In a timely manner, upon the written instruction of the Company, invest and reinvest the Property solely in United States government
securities within the meaning of Section 2(a)(16) of the Investment Company Act of 1940, as amended, having a maturity of 180
days or less, or in money market funds meeting the conditions of paragraphs (d)(1), (d)(2), (d)(3) and (d)(4) of Rule 2a-7 promulgated
under the Investment Company Act of 1940, as amended (or any successor rule), which invest only in direct U.S. government treasury
obligations, as determined by the Company; it being understood that the Trust Account will earn no interest while account funds
are uninvested awaiting the Company’s instructions hereunder and the Trustee may earn bank credits or other consideration;

 

    1

     

    

 

(d)
Collect and receive, when due, all interest or other income arising from the Property, which shall become part of the “Property,”
as such term is used herein;

 

(e)
Promptly notify the Company and the Representative of all communications received by the Trustee with respect to any Property
requiring action by the Company;

 

(f)
Supply any necessary information or documents as may be requested by the Company (or its authorized agents) in connection with
the Company’s preparation of the tax returns relating to assets held in the Trust Account;

 

(g)
Participate in any plan or proceeding for protecting or enforcing any right or interest arising from the Property if, as and when
instructed by the Company to do so;

 

(h)
Render to the Company monthly written statements of the activities of, and amounts in, the Trust Account reflecting all receipts
and disbursements of the Trust Account;

 

(i)
Commence liquidation of the Trust Account only after and promptly after (x) receipt of, and only in accordance with, the terms
of a letter from the Company (“Termination Letter”) in a form substantially similar
to that attached hereto as either Exhibit A or Exhibit B, as applicable, signed on behalf of the Company by its
Chief Executive Officer, Chief Financial Officer, President, Executive Vice President, Vice President, Secretary or Chairman of
the board of directors of the Company (the “Board”) or other authorized officer of the Company, and
complete the liquidation of the Trust Account and distribute the Property in the Trust Account, including interest not previously
released to the Company to pay its taxes (less up to $100,000 of interest that may be released to the Company to pay dissolution
expenses), only as directed in the Termination Letter and the other documents referred to therein, or (y) upon the date which
is, the later of (1) 24 months after the closing of the Offering and (2) such later date as may be approved by the Company’s
stockholders in accordance with the Company’s amended and restated certificate of incorporation if a Termination Letter
has not been received by the Trustee prior to such date, in which case the Trust Account shall be liquidated in accordance with
the procedures set forth in the Termination Letter attached as Exhibit B and the Property in the Trust Account, including
interest not previously released to the Company to pay its taxes (less up to $100,000 of interest that may be released to the
Company to pay dissolution expenses) shall be distributed to the Public Stockholders of record as of such date; and provided,
however, that in the event the Trustee receives a Termination Letter in a form substantially similar to Exhibit B
hereto, or if the Trustee begins to liquidate the Property because it has received no such Termination Letter by the date specified
in clause (y) of this Section 1(i), the Trustee shall keep the Trust Account open until twelve (12) months following the date
the Property has been distributed to the Public Stockholders.

 

(j)
Upon written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto
as Exhibit C, withdraw from the Trust Account and distribute to the Company the amount of interest earned on the Property
requested by the Company to cover any tax obligation owed by the Company as a result of assets of the Company or interest or other
income earned on the Property, which amount shall be delivered directly to the Company by electronic funds transfer or other method
of prompt payment, and the Company shall forward such payment to the relevant taxing authority; provided, however,
that to the extent there is not sufficient cash in the Trust Account to pay such tax obligation, the Trustee shall liquidate such
assets held in the Trust Account as shall be designated by the Company in writing to make such distribution, so long as there
is no reduction in the principal amount initially deposited in the Trust Account; provided, further, that if the
tax to be paid is a franchise tax, the written request by the Company to make such distribution shall be accompanied by a copy
of the franchise tax bill from the State of Delaware for the Company (it being acknowledged and agreed that any such amount in
excess of interest income earned on the Property shall not be payable from the Trust Account). The written request of the Company
referenced above shall constitute presumptive evidence that the Company is entitled to said funds, and the Trustee shall have
no responsibility to look beyond said request;

 

    2

     

    

 

(k)
Upon written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto
as Exhibit D, the Trustee shall distribute on behalf of the Company the amount requested by the Company to be used to redeem
shares of Common Stock from Public Stockholders properly submitted in connection with a stockholder vote to approve an amendment
to the Company’s amended and restated certificate of incorporation to modify the substance or timing of the ability of Public
Stockholders to seek redemption in connection with an initial Business Combination or the Company’s obligation to redeem
100% of its public shares of Common Stock if the Company has not consummated an initial Business Combination within such time
as is described in Section 1(i) of the Agreement. The written request of the Company referenced above shall constitute presumptive
evidence that the Company is entitled to distribute said funds, and the Trustee shall have no responsibility to look beyond said
request; and

 

(l)
Not make any withdrawals or distributions from the Trust Account other than pursuant to Section 1(i), (j) or (k)
above.

 

2.
Agreements and Covenants of the Company. The Company hereby agrees and covenants to:

 

(a)
Give all instructions to the Trustee hereunder in writing, signed by the Company’s Chairman of the Board, Chief Executive
Officer, Chief Financial Officer, President, Executive Vice President, Vice President or Secretary. In addition, except with respect
to its duties under Sections 1(i), 1(j) and 1(k) hereof, the Trustee shall be entitled to rely on, and shall
be protected in relying on, any verbal or telephonic advice or instruction which it, in good faith and with reasonable care, believes
to be given by any one of the persons authorized above to give written instructions, provided that the Company shall promptly
confirm such instructions in writing;

 

(b)
Subject to Section 4 hereof, hold the Trustee harmless and indemnify the Trustee from and against any and all expenses,
including reasonable counsel fees and disbursements, or losses suffered by the Trustee in connection with any action taken by
it hereunder and in connection with any action, suit or other proceeding brought against the Trustee involving any claim, or in
connection with any claim or demand, which in any way arises out of or relates to this Agreement, the services of the Trustee
hereunder, or the Property or any interest earned on the Property, except for expenses and losses resulting from the Trustee’s
gross negligence, fraud or willful misconduct. Promptly after the receipt by the Trustee of notice of demand or claim or the commencement
of any action, suit or proceeding, pursuant to which the Trustee intends to seek indemnification under this Section 2(b),
it shall notify the Company in writing of such claim (hereinafter referred to as the “Indemnified Claim”).
The Trustee shall have the right to conduct and manage the defense against such Indemnified Claim; provided that the Trustee
shall obtain the consent of the Company with respect to the selection of counsel, which consent shall not be unreasonably withheld.
The Trustee may not agree to settle any Indemnified Claim without the prior written consent of the Company, which such consent
shall not be unreasonably withheld. The Company may participate in such action with its own counsel;

 

(c)
Pay the Trustee the fees set forth on Schedule A hereto, including an initial acceptance fee, annual administration fee,
and transaction processing fee which fees shall be subject to modification by the parties from time to time. It is expressly understood
that the Property shall not be used to pay such fees unless and until the closing of the Business Combination (defined below).
The Company shall pay the Trustee the initial acceptance fee and the first annual administration fee at the consummation of the
Offering. The Trustee shall refund to the Company the annual administration fee (on a pro rata basis) with respect to any period
after the liquidation of the Trust Account. The Company shall not be responsible for any other fees or charges of the Trustee
except as set forth in this Section 2(c), Schedule A and as may be provided in Section 2(b) hereof;

 

(d)
In connection with any vote of the Company’s stockholders regarding a merger, capital stock exchange, asset acquisition,
stock purchase, reorganization or similar business combination involving the Company and one or more businesses (the “Business Combination”),
provide to the Trustee an affidavit or certificate of the inspector of elections for the stockholder meeting verifying the vote
of such stockholders regarding such Business Combination;

 

(e)
Provide the Representative with a copy of any Termination Letter(s) and/or any other correspondence that is sent to the Trustee
with respect to any proposed withdrawal from the Trust Account promptly after it issues the same;

 

    3

     

    

 

(f)
Unless otherwise agreed between the Company and the Representative, ensure that any Instruction Letter (as defined in Exhibit
A) delivered in connection with a Termination Letter in the form of Exhibit A expressly provides that the Deferred Discount is
paid directly to the account or accounts directed by the Representative on behalf of the Underwriters prior to any transfer of
the funds held in the Trust Account to the Company or any other person;

 

(g)
Instruct the Trustee to make only those distributions that are permitted under this Agreement, and refrain from instructing the
Trustee to make any distributions that are not permitted under this Agreement; and

 

(h)
Within four (4) business days after the Underwriters exercise the over-allotment option (or any unexercised portion thereof) or
such over-allotment expires, provide the Trustee with a notice in writing of the total amount of the Deferred Discount, which
shall in no event be less than $9,135,000.

 

3.
Limitations of Liability. The Trustee shall have no responsibility or liability to:

 

(a)
Imply obligations, perform duties, inquire or otherwise be subject to the provisions of any agreement or document other than this
Agreement and that which is expressly set forth herein;

 

(b)
Take any action with respect to the Property, other than as directed in Section 1 hereof, and the Trustee shall have no
liability to any third party except for liability arising out of the Trustee’s gross negligence, fraud or willful misconduct;

 

(c)
Institute any proceeding for the collection of any principal and income arising from, or institute, appear in or defend any proceeding
of any kind with respect to, any of the Property unless and until it shall have received instructions from the Company given as
provided herein to do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any expenses incident
thereto;

 

(d)
Refund any depreciation in principal of any Property;

 

(e)
Assume that the authority of any person designated by the Company to give instructions hereunder shall not be continuing unless
provided otherwise in such designation, or unless the Company shall have delivered a written revocation of such authority to the
Trustee;

 

(f)
The other parties hereto or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or
omitted, in good faith and in the Trustee’s best judgment, except for the Trustee’s gross negligence, fraud or willful
misconduct. The Trustee may rely conclusively and shall be protected in acting upon any order, notice, demand, certificate, opinion
or advice of counsel (including counsel chosen by the Trustee, which counsel may be the Company’s counsel), statement, instrument,
report or other paper or document (not only as to its due execution and the validity and effectiveness of its provisions, but
also as to the truth and acceptability of any information therein contained) which the Trustee believes, in good faith and with
reasonable care, to be genuine and to be signed or presented by the proper person or persons. The Trustee shall not be bound by
any notice or demand, or any waiver, modification, termination or rescission of this Agreement or any of the terms hereof, unless
evidenced by a written instrument delivered to the Trustee, signed by the proper party or parties and, if the duties or rights
of the Trustee are affected, unless it shall give its prior written consent thereto;

 

(g)
Verify the accuracy of the information contained in the Registration Statement;

 

    4

     

    

 

(h)
Provide any assurance that any Business Combination entered into by the Company or any other action taken by the Company is as
contemplated by the Registration Statement;

 

(i)
File information returns with respect to the Trust Account with any local, state or federal taxing authority or provide periodic
written statements to the Company documenting the taxes payable by the Company, if any, relating to any interest income earned
on the Property;

 

(j)
Prepare, execute and file tax reports, income or other tax returns and pay any taxes with respect to any income generated by,
and activities relating to, the Trust Account, regardless of whether such tax is payable by the Trust Account or the Company,
including, but not limited to, franchise and income tax obligations, except pursuant to Section 1(j) hereof; or

 

(k)
Verify calculations, qualify or otherwise approve the Company’s written requests for distributions pursuant to Sections
1(i), 1(j) or 1(k) hereof.

 

4.
Trust Account Waiver. The Trustee has no right of set-off or any right, title, interest or claim of any kind (“Claim”)
to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust Account
that it may have now or in the future. In the event the Trustee has any Claim against the Company under this Agreement, including,
without limitation, under Section 2(b) or Section 2(c) hereof, the Trustee shall pursue such Claim solely against
the Company and its assets outside the Trust Account and not against the Property or any monies in the Trust Account.

 

5.
Termination. This Agreement shall terminate as follows:

 

(a)
If the Trustee gives written notice to the Company that it desires to resign under this Agreement, the Company shall use its reasonable
efforts to locate a successor trustee, pending which the Trustee shall continue to act in accordance with this Agreement. At such
time that the Company notifies the Trustee that a successor trustee has been appointed and has agreed to become subject to the
terms of this Agreement, the Trustee shall transfer the management of the Trust Account to the successor trustee, including but
not limited to the transfer of copies of the reports and statements relating to the Trust Account, whereupon this Agreement shall
terminate; provided, however, that in the event that the Company does not locate a successor trustee within ninety
(90) days of receipt of the resignation notice from the Trustee, the Trustee may submit an application to have the Property deposited
with any court in the State of New York or with the United States District Court for the Southern District of New York and upon
such deposit, the Trustee shall be immune from any liability whatsoever; or

 

(b)
At such time that the Trustee has completed the liquidation of the Trust Account and its obligations in accordance with the provisions
of Section 1(i) hereof (which section may not be amended under any circumstances) and distributed the Property in accordance
with the provisions of the Termination Letter, this Agreement shall terminate except with respect to Section 2(b).

 

6.
Miscellaneous.

 

(a)
The Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below with respect
to funds transferred from the Trust Account. The Company and the Trustee will each restrict access to confidential information
relating to such security procedures to authorized persons. Each party must notify the other party immediately if it has reason
to believe unauthorized persons may have obtained access to such confidential information, or of any change in its authorized
personnel. In executing funds transfers, the Trustee shall rely upon all information supplied to it by the Company, including,
account names, account numbers, and all other identifying information relating to a Beneficiary, Beneficiary’s bank or intermediary
bank. Except for any liability arising out of the Trustee’s gross negligence, fraud or willful misconduct, the Trustee shall
not be liable for any loss, liability or expense resulting from any error in the information or transmission of the funds.

 

    5

     

    

 

(b)
This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New York, without giving
effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. This
Agreement may be executed in several original or facsimile counterparts, each one of which shall constitute an original, and together
shall constitute but one instrument.

 

(c)
This Agreement contains the entire agreement and understanding of the parties hereto with respect to the subject matter hereof.
This Agreement or any provision hereof may only be changed, amended or modified (other than to correct a typographical error)
by a writing signed by each of the parties hereto.

 

(d)
This Agreement or any provision hereof may only be changed, amended or modified pursuant to Section 6(c) hereof with the
Consent of the Stockholders. For purposes of this Section 6(d), the “Consent of the Stockholders”
means receipt by the Trustee of a certificate from the inspector of elections of the stockholder meeting certifying that the Company’s
stockholders of record as of a record date established in accordance with Section 213(a) of the Delaware General Corporation Law,
as amended (“DGCL”) (or any successor rule), who hold sixty-five percent (65%) or more of all then outstanding
shares of the Common Stock and Class B common stock, par value $0.0001 per share, of the Company voting together as a single class,
have voted in favor of such change, amendment or modification. No such amendment will affect any Public Stockholder who has otherwise
indicated his election to redeem his shares of Common Stock in connection with a stockholder vote sought to amend this Agreement
to modify the substance or timing of the Company’s obligation to redeem 100% of the Common Stock if the Company does not
complete its initial Business Combination within the time frame specified in the Company’s amended and restated certificate
of incorporation. Except for any liability arising out of the Trustee’s gross negligence, fraud or willful misconduct, the
Trustee may rely conclusively on the certification from the inspector or elections referenced above and shall be relieved of all
liability to any party for executing the proposed amendment in reliance thereon.

 

(e)
The parties hereto consent to the jurisdiction and venue of any state or federal court located in the City of New York, State
of New York, for purposes of resolving any disputes hereunder. AS TO ANY CLAIM, CROSS-CLAIM OR COUNTERCLAIM IN ANY WAY RELATING
TO THIS AGREEMENT, EACH PARTY WAIVES THE RIGHT TO TRIAL BY JURY.

 

(f)
Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing
and shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery
or by electronic mail:

 

if
to the Trustee, to:

 

Continental
Stock Transfer & Trust Company

1
State Street, 30th Floor

New
York, NY 10004

Attn:
Francis Wolf and Celeste Gonzalez

Email: 
fwolf@continentalstock.com

            cgonzalez@continentalstock.com

 

if
to the Company, to:

 

Trine
Acquisition Corp.

Mark
J. Coleman, Esq.

Executive Vice President and General Counsel

405 Lexington Avenue, 48th Floor

New York, New York 10174

 

    6

     

    

 

in
each case, with copies to:

 

Ellenoff
Grossman & Schole LLP

1345
Avenue of the Americas

New
York, NY 10105

Attn:
Stuart Neuhauser, Esq.

Email:
sneuhauser@egsllp.com

 

and

 

BTIG,
LLC 

825
Third Avenue, 6th Floor 

New
York, NY, 10022 

Email:
equitycapitalmarkets@btig.com

 

and

 

Cantor
Fitzgerald & Co.

499
Park Avenue

New
York, New York 10022

Attn:
General Counsel 

Fax
No.: (212) 829-4708

 

and

 

Christian
O. Nagler, Esq.

Kirkland & Ellis LLP

601 Lexington Avenue

New York, NY 10022

Tel: (212) 446-4800

Fax: (212) 446-4900

 

(g)
Each of the Company and the Trustee hereby represents that it has the full right and power and has been duly authorized to enter
into this Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that
it shall not make any claims or proceed against the Trust Account, including by way of set-off, and shall not be entitled to any
funds in the Trust Account under any circumstance.

 

(h)
This Agreement is the joint product of the Trustee and the Company and each provision hereof has been subject to the mutual consultation,
negotiation and agreement of such parties and shall not be construed for or against any party hereto.

 

(i)
This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts
shall together constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or electronic
transmission shall constitute valid and sufficient delivery thereof.

 

(j)
Each of the Company and the Trustee hereby acknowledges and agrees that BTIG, LLC and Cantor Fitzgerald & Co. on behalf of
the Underwriters are third party beneficiaries of this Agreement.

 

(k)
Except as specified herein, no party to this Agreement may assign its rights or delegate its obligations hereunder to any other
person or entity.

 

[Signature
Page Follows]

 

    7

     

    

 

IN WITNESS WHEREOF,
the parties have duly executed this Investment Management Trust Agreement as of the date first written above.

 

	 	CONTINENTAL
    STOCK TRANSFER & TRUST COMPANY, as Trustee
	 	 	 
	 	By:	 /s/
    Francis Wolf Jr.
	 	 	Name:
    Francis Wolf Jr.
	 	 	Title:
    Vice President
	 	 	 
	 	TRINE
    ACQUISITION CORP.
	 	 	 
	 	By:	/s/
Leo Hindery, Jr.
	 	 	Name:
    Leo Hindery, Jr.
	 	 	Title:
    Chief Executive Officer

 

[Signature
Page to Investment Management Trust Agreement]

 

    8

     

    

 

SCHEDULE
A

 

	Fee Item	 	Time and method of payment	 	Amount	 
	Initial set-up fee.	 	Initial closing of Offering by wire transfer.	 	$	3,500	 
	Trustee administration fee	 	Payable annually. First year fee payable, at initial closing of Offering by wire transfer, thereafter by wire transfer or check.	 	$	10,000	 
	Transaction processing fee for disbursements to Company under Sections 1(i) and (j)	 	Deduction by Trustee from accumulated income following disbursement made to Company under Section 1	 	$	250	 
	Paying Agent services as required pursuant to Section 1(i), (j) and (k)	 	Billed to Company upon delivery of service pursuant to Section 1(i), (j) and (k)	 	 	Prevailing rates	 

 

    9

     

    

 

EXHIBIT
A

 

[Letterhead
of Company]

 

[Insert
date]

 

Continental
Stock Transfer & Trust Company

1
State Street, 30th Floor

New
York, New York 10004

Attn:
Francis Wolf and Celeste Gonzalez

 

	 	Re:	Trust
    Account No.      Termination Letter

 

Ladies
and Gentlemen:

 

Pursuant
to Section 1(i) of the Investment Management Trust Agreement between Trine Acquisition Corp. (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 14, 2019 (the
“Trust Agreement”), this is to advise you that the Company has entered into an agreement
with              (the “Target Business”) to consummate a business
combination with Target Business (the “Business Combination”) on or about [insert
date]. The Company shall notify you at least forty-eight (48) hours in advance of the actual date of the consummation of the Business
Combination (the “Consummation Date”). Capitalized terms used but not defined herein
shall have the meanings set forth in the Trust Agreement.

 

In
accordance with the terms of the Trust Agreement, we hereby authorize you to commence to liquidate all of the assets of the Trust
Account on [insert date], and to transfer the proceeds to a segregated account held by you on behalf of the Beneficiaries to the
effect that, on the Consummation Date, all of the funds held in the Trust Account will be immediately available for transfer to
the account or accounts that the Company shall direct on the Consummation Date (including as directed to it by the Representative
on behalf of the Underwriters (with respect to the Deferred Discount)). It is acknowledged and agreed that while the funds are
on deposit in the trust operating account at J.P. Morgan Chase Bank, N.A. awaiting distribution, the Company will not earn any
interest or dividends.

 

On
the Consummation Date (i) counsel for the Company shall deliver to you written notification that the Business Combination has
been consummated, or will be consummated concurrently with your transfer of funds to the accounts as directed by the Company (the
“Notification”) and (ii) the Company shall deliver to you (a) a certificate of the Chief Executive Officer,
which verifies that the Business Combination has been approved by a vote of the Company’s stockholders, if a vote is held
and (b) a joint written instruction signed by the Company and the Representative with respect to the transfer of the funds held
in the Trust Account, including payment of amounts owed to public stockholders who have properly exercised their redemption rights
and payment of the Deferred Discount to the Representative from the Trust Account (the “Instruction Letter”).
You are hereby directed and authorized to transfer the funds held in the Trust Account immediately upon your receipt of the Notification
and the Instruction Letter, in accordance with the terms of the Instruction Letter. In the event that certain deposits held in
the Trust Account may not be liquidated by the Consummation Date without penalty, you will notify the Company in writing of the
same and the Company shall direct you as to whether such funds should remain in the Trust Account and be distributed after the
Consummation Date to the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed
expenses related to liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated.

 

In
the event that the Business Combination is not consummated on the Consummation Date described in the notice thereof and we have
not notified you on or before the original Consummation Date of a new Consummation Date, then upon receipt by the Trustee of written
instructions from the Company, the funds held in the Trust Account shall be reinvested as provided in Section 1(c) of the Trust
Agreement on the business day immediately following the Consummation Date as set forth in such notice as soon thereafter as possible.

 

    10

     

    

 

	 	Very
    truly yours,
	 	 
	 	Trine
    Acquisition Corp.
	 	 	 
	 	By:	       
	 	 	Name: 
	 	 	Title:
     

 

	cc:	BTIG,
        LLC

        Cantor
        Fitzgerald & Co.

 

    11

     

    

 

EXHIBIT
B

 

[Letterhead
of Company]

 

[Insert
date]

 

Continental
Stock Transfer & Trust Company

1
State Street, 30th Floor

New
York, New York 10004

Attn:
Francis Wolf and Celeste Gonzalez

 

	 	Re:	Trust
    Account No.      Termination Letter

 

Ladies
and Gentlemen:

 

Pursuant
to Section 1(i) of the Investment Management Trust Agreement between Trine Acquisition Corp. (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 14, 2019 (the
“Trust Agreement”), this is to advise you that the Company has been unable to effect
a business combination with a Target Business (the “Business Combination”) within
the time frame specified in Section 1(i) of the Trust Agreement. Capitalized terms used but not defined herein shall have the
meanings set forth in the Trust Agreement.

 

In
accordance with the terms of the Trust Agreement, we hereby authorize you to liquidate all of the assets in the Trust Account
on             , 20     and to transfer the total proceeds into a segregated
account held by you on behalf of the Beneficiaries to await distribution to the Public Stockholders. The Company has selected 
           (1) as the effective date for the purpose of determining when the Public Stockholders
will be entitled to receive their share of the liquidation proceeds. You agree to be the Paying Agent of record and, in your separate
capacity as Paying Agent, agree to distribute said funds directly to the Company’s Public Stockholders in accordance with
the terms of the Trust Agreement and the Amended and Restated Certificate of Incorporation of the Company. Upon the distribution
of all the funds, net of any payments necessary for reasonable unreimbursed expenses related to liquidating the Trust Account,
your obligations under the Trust Agreement shall be terminated, except to the extent otherwise provided in Section 1(j)
of the Trust Agreement.

 

	 (1)	24
    months from the closing of the Offering.

 

	 	Very
    truly yours,
	 	 
	 	Trine
    Acquisition Corp.
	 	 	 
	 	By:	
	 	 	Name: 
	 	 	Title:
     

 

	cc:	BTIG,
        LLC

        Cantor
        Fitzgerald & Co.

 

 

    12

     

    

 

EXHIBIT
C

 

[Letterhead
of Company]

 

[Insert
date]

 

Continental
Stock Transfer & Trust Company

1
State Street, 30th Floor

New
York, New York 10004

Attn:
Francis Wolf and Celeste Gonzalez

 

	 	Re:	Trust
    Account No.      Withdrawal Instruction

 

Ladies
and Gentlemen:

 

Pursuant
to Section 1(j) of the Investment Management Trust Agreement between Trine Acquisition Corp. (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 14, 2019 (the
“Trust Agreement”), the Company hereby requests that you deliver to the Company $ 
       of the interest income earned on the Property as of the date hereof. Capitalized terms used but not
defined herein shall have the meanings set forth in the Trust Agreement.

 

The
Company needs such funds to pay for the tax obligations as set forth on the attached tax return or tax statement. In accordance
with the terms of the Trust Agreement, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly
upon your receipt of this letter to the Company’s operating account at:

 

[WIRE
INSTRUCTION INFORMATION]

 

	 	Very
    truly yours,
	 	 
	 	Trine
    Acquisition Corp.
	 	 	 
	 	By:	
	 	 	Name: 
	 	 	Title:
     

 

	cc:	BTIG,
        LLC

        Cantor
        Fitzgerald & Co.

 

    13

     

    

 

EXHIBIT
D

 

[Letterhead
of Company]

 

[Insert
date]

 

Continental
Stock Transfer & Trust Company

1
State Street, 30th Floor

New
York, New York 10004

Attn:
Francis Wolf and Celeste Gonzalez

 

	 	Re:	Trust
    Account No.      Shareholder Redemption Withdrawal Instruction

 

Gentlemen:

 

Pursuant
to Section 1(k) of the Investment Management Trust Agreement between Trine Acquisition Corp. (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 14, 2019 (the
“Trust Agreement”), the Company hereby requests that you deliver to the redeeming
Public Stockholders of the Company $         of the principal and interest income earned on the Property
as of the date hereof to a segregated account held by you on behalf of the Beneficiaries. Capitalized terms used but not defined
herein shall have the meanings set forth in the Trust Agreement.

 

The
Company needs such funds to pay its Public Stockholders who have properly elected to have their shares of Common Stock redeemed
by the Company in connection with a stockholder vote to approve an amendment to the Company’s amended and restated certificate
of incorporation to modify the substance or timing of the Company’s obligation to redeem 100% of public shares of Common
Stock if the Company has not consummated an initial Business Combination within such time as is described in Section 1(i) of the
Trust Agreement. As such, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your
receipt of this letter to a segregated account held by you on behalf of the Beneficiaries.

 

	 	Very
    truly yours,
	 	 
	 	Trine
    Acquisition Corp.
	 	 	 
	 	By:	
	 	 	Name:
	 	 	Title:
      

  

	Cc:	BTIG,
        LLC

        Cantor
        Fitzgerald & Co.

 

 14

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