Exhibit 10.8


 


______________, 2018


 


Trident Acquisitions Corp.


77 Water Street, Fl 8


New York, NY 10005


 


Ladies and Gentlemen:


 


Trident Acquisitions Corp. (the “Company”),
a blank check company formed for the purpose of acquiring one or more businesses or entities (a “Business Combination”),
intends to register its securities under the Securities Act of 1933, as amended (“Securities Act”), in connection with
its initial public offering (“IPO”), pursuant to a registration statement on Form S-1 (“Registration Statement”).


 


The undersigned hereby commits that it will
purchase an aggregate of [·] units of the Company (“Private Units”),
each Private Unit consisting of one share of Common Stock of the Company, par value $0.001 per share (the “Common Stock”),
and one warrant to purchase a share of Common Stock (a “Warrant”), at $10.00 per Private Unit, for an aggregate purchase
price of $[·] (the “Private Unit Purchase Price”).


 


At least twenty-four (24) hours prior to the
effective date of the Registration Statement, the undersigned will cause the Private Unit Purchase Price to be delivered to Continental
Stock Transfer & Trust Company (“Continental”) by wire transfer as set forth in the instructions attached as Exhibit
A to hold in a non-interest bearing account until the Company consummates the IPO.


 


The consummation of the purchase and issuance
of the Private Units shall occur simultaneously with the consummation of the IPO. Simultaneously with the consummation of the IPO,
Continental shall deposit the Private Unit Purchase Price, without interest or deduction, into the trust fund (“Trust Fund”)
established by the Company for the benefit of the Company’s public stockholders as described in the Registration Statement.
If the Company does not complete the IPO within ten (10) days from the date of this letter, the Purchase Price (without interest
or deduction) will be returned to the undersigned.


 


Each of the Company, Chardan Capital
Markets, LLC (“Chardan”) and the undersigned acknowledges and agrees that Continental is serving hereunder solely
as a convenience to the parties to facilitate the purchase of the Private Units and Continental’s sole obligation under
this letter agreement is to act with respect to holding and disbursing the Purchase Price for the Private Units as
described above. Continental shall not be liable to the Company, Chardan or the undersigned or any other person or entity in
respect of any act or failure to act hereunder or otherwise in connection with performing its services hereunder unless
Continental has acted in a manner constituting gross negligence or willful misconduct. The Company and the undersigned shall
indemnify Continental against any claim made against it (including reasonable attorney’s fees) by reason of it acting
or failing to act in connection with this letter agreement except as a result of its gross negligence or willful misconduct.
Continental may rely and shall be protected in acting or refraining from acting upon any written notice, instruction or
request furnished to it hereunder and believed by it to be genuine and to have been signed or presented by the proper party
or parties.


 


The Private Units will be identical to the
units to be sold by the Company in the IPO. Additionally, the undersigned agrees:


 


		·	to vote the Common Stock included in the Private Units in favor of any proposed Business Combination;



 




     


     


    

 


		·	not to propose, or vote in favor of, an amendment to the Company’s Amended and Restated Certificate of Incorporation
that would affect the substance or timing of the Company’s obligation to redeem 100% of the Company’s shares of Common
Stock sold in the IPO if the Company does not complete an initial Business Combination within 18 months from the closing of the
IPO (or 21 months, as applicable), unless the Company provides the holders of shares of Common Stock sold in the IPO 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 of the Trust Fund, including interest earned on Trust Fund and not previously released to the Company to pay the
Company’s franchise and income taxes, divided by the number of then outstanding shares of Common Stock sold in the IPO;



 


		·	not to convert any Common Stock included in the Private Units into the right to receive cash from the Trust Fund in connection
with a shareholder vote to approve either a Business Combination or an amendment to the provisions of the Company’s Amended
and Restated Certificate of Incorporation, or to tender the Private Units in connection with a tender offer conducted prior to
the closing of a Business Combination;



 


		·	the undersigned will not participate in any liquidation distribution with respect to the Private Units (but will participate
in liquidation distributions with respect to any units or Common Stock purchased by the undersigned in the IPO or in the open market)
if the Company fails to consummate a Business Combination;



 


		·	that the Private Units and underlying securities will not be transferable until after the consummation of a Business Combination
except (i) to the Company’s pre-IPO stockholders, or to the Company’s officers, directors, advisors and employees,
(ii) transfers to the undersigned’s affiliates or its members upon its liquidation, (iii) to relatives and trusts for estate
planning purposes, (iv) by virtue of the laws of descent and distribution upon death, (v) pursuant to a qualified domestic relations
order, (vi) by private sales at prices no greater than the price at which the Private Units were originally purchased or (vii)
to the Company for cancellation in connection with the consummation of a Business Combination, in each case (except for clause
vii) where the transferee agrees to the terms of the transfer restrictions; and



 


		·	the Private Units will include any additional terms or restrictions as is customary in other similarly structured blank check
company offerings or as may be reasonably required by the underwriters in the IPO in order to consummate the IPO, each of which
will be set forth in the Registration Statement.



 


The undersigned acknowledges and agrees that
the purchaser of the Private Units will execute agreements in form and substance typical for transactions of this nature necessary
to effectuate the foregoing agreements and obligations prior to the consummation of the IPO as are reasonably acceptable to the
undersigned, including but not limited to an insider letter.


 




     


     


    

 


The undersigned hereby represents and warrants
that:


 


		(a)	it has been advised that the Private Units have not been registered under the Securities Act;



 


		(b)	it will be acquiring the Private Units for its account for investment purposes only;



 


		(c)	it has no present intention of selling or otherwise disposing of the Private Units in violation of the securities laws of the
United States;



 


		(d)	it is an “accredited investor” as defined by Rule 501 of Regulation D promulgated under the Securities Act of 1933,
as amended;



 


		(e)	it has had both the opportunity to ask questions and receive answers from the officers and directors of the Company and all
persons acting on its behalf concerning the terms and conditions of the offer made hereunder;



 


		(f)	it is familiar with the proposed business, management, financial condition and affairs of the Company;



 


		(g)	it has full power, authority and legal capacity to execute and deliver this letter and any documents contemplated herein or
needed to consummate the transactions contemplated in this letter; and



 


		(h)	this letter constitutes its legal, valid and binding obligation, and is enforceable against it.



 


This letter agreement constitutes the entire agreement between
the undersigned and the Company with respect to the purchase of the Private Units, and supersedes all prior and contemporaneous
understandings, agreements, representations and warranties, both written and oral, with respect to the same.


 


	 	Very truly yours,
	 	 
	 	[·]
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 


 


	Accepted and Agreed:	 
	 	 
	TRIDENT ACQUISITIONS CORP. 	 
	 	 	 	 
	By:	 	 
	 	Name: 	 	 
	 	Title: 	 	 


 




     


     


    

 


Exhibit A


 


Wire Instructions