Document:

Exhibit 10.6

 

Orisun Acquisition Corp.

555 Madison Avenue, Room 543

New York, NY 10022

 

Ladies and Gentlemen:

 

Orisun Acquisition 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 20,000 units of the Company (“Private Units”), each Private Unit consisting of one share
of common stock of the Company, par value $0.00001 per share (the “Common Stock”), one warrant that is exercisable
to purchase one-half of one share of Common Stock (each a “Warrant”), and one right to receive one-tenth (1/10) of
a share of Common Stock (each a “Right”), at $10.00 per Private Unit, for a purchase price of $200,000 (the “Private
Unit Purchase Price”).

 

The undersigned hereby
agrees that it will purchase an additional amount of units of the Company (“Over-Allotment Units”), up to a maximum
of 3,000 Over-Allotment Units, or a maximum purchase price of $30,000 (“Over-Allotment Unit Purchase Price”, together
with the Private Unit Purchase Price, the “Purchase Price”), in the event that the underwriters in the IPO exercise
the over-allotment option, such that the amount held in the trust account (as described in the Registration Statement) does not
fall below $10.00 per share for each share of Common Stock sold in the IPO.

 

The consummation of the
purchase and issuance of the Private Units shall occur simultaneously with the consummation of the IPO and the consummation of
the purchaser and issuance of the Over-Allotment Units shall occur simultaneously with the closing of any exercise of the over-allotment
option related to the IPO.

 

The Private Units and
Over-Allotment 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 and Over-Allotment 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 12 months from the
closing of the IPO (or up to 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 and Over-Allotment 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 and Over-Allotment 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 and Over-Allotment 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, Over-Allotment 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
or the undersigned’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 made in connection with
the consummation of a Business Combination 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 so long as any transfer is conducted in compliance
with FINRA Rule 5110(g)(2); and

 

		●	the Private Units and Over-Allotment 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 and Over-Allotment 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 and Over-Allotment Units have not been registered under
the Securities Act;

 

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

 

		(c)	it has no present intention of selling or otherwise disposing of the Private Units and Over-Allotment
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;

 

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		(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.

 

The undersigned agrees that, in
accordance with FINRA Rule 5110(g)(1), it will not sell, transfer, assign, pledge or hypothecate in whole or in part any Private
Units, shares of Common Stock, warrants and rights underlying the Private Units, or shares of Common Stock that are issuable pursuant
to the warrants or rights included in the Private Units (in whole or in part) or any interest herein, or subject any such securities
to any hedging, short sale, derivative or put or call transaction that would result in the economic disposition of such securities,
for a lock-up period of 180 days following the effective date of the Registration Statement or the commencement of sales in the
IPO to anyone other than (i) an underwriter or a selected dealer participating in the IPO or (ii) any officer or partner of any
such underwriter or selected dealer. Additionally, certain registration rights have been provided with respect to the Private Units
purchased by the undersigned and other holders, which registration rights will at all times be in compliance with FINRA Rule 5110(f)(2)(G)(iii)-(v).

 

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

 

	 	Very truly yours,
	 	 
	 	Chardan Capital Markets, LLC
	 	 	 
	 	By: 	 
	 	Name: 	       
	 	Title:	 

 

	Accepted and Agreed:	 
	 	 
	ORISUN ACQUISITION CORP. 	 
	 	 	 
	By: 	 	 
	 	Name: Wei Chen 	 
	 	Title: Chief Executive Officer	 

 

Subscription
Agreement for Private Units

 

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Exhibit A

 

Wire Instructions

 

Bank Name: Citigroup Private Bank

Bank Address: 153 East 53rd Street, New York, NY 10022

Account Name: Loeb & Loeb LLP - Trust Account

Account Number: 24576266

Routing/ABA Number (Domestic Wires): 021000089

Swift Code (Foreign Wire): CITIUS33

Reference: Orisun 232137-10001

 

 

5Exhibit 10.7

 

THIS
NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). THIS NOTE HAS BEEN
ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF
UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH
REGISTRATION IS NOT REQUIRED.

 

PROMISSORY
NOTE

  

	Principal
    Amount: $300,000	Dated
    as of December 28, 2018

  

Orisun
Delaware Corp., a Delaware corporation (the “Maker”), promises to pay to the order of Everstone Investments
LLC or its registered assigns or successors in interest (the “Payee”) the principal sum of Three hundred thousand
dollars ($300,000) in lawful money of the United States of America, on the terms and conditions described below. All payments
on this Note shall be made by check or wire transfer of immediately available funds or as otherwise determined by the Maker to
such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note.

 

		1.	Principal.
                                         The principal balance of this Promissory Note (this “Note”) shall
                                         be payable promptly after the date on which the Maker consummates an initial public offering
                                         of its securities or the date on which the Company determines not to conduct an initial
                                         public offering of its securities. The principal balance may be prepaid at any time.

 

		2.	Interest.
                                         No interest shall accrue on the unpaid principal balance of this Note.

 

		3.	Application
                                         of Payments. All payments shall be applied first to payment in full of any costs
                                         incurred in the collection of any sum due under this Note, including (without limitation)
                                         reasonable attorney’s fees, then to the payment in full of any late charges and
                                         finally to the reduction of the unpaid principal balance of this Note.

 

		4.	Events
                                         of Default. The following shall constitute an event of default (“Event of
                                         Default”):

 

		(a)	Failure
                                         to Make Required Payments. Failure by Maker to pay the principal of this Note within
                                         five (5) business days following the date when due.

 

		(b)	Voluntary
                                         Liquidation, Etc. The commencement by Maker of a proceeding relating to its bankruptcy,
                                         insolvency, reorganization, rehabilitation or other similar action, or the consent by
                                         it to the appointment of, or taking possession by, a receiver, liquidator, assignee,
                                         trustee, custodian, sequestrator (or other similar official) for Maker or for any substantial
                                         part of its property, or the making by it of any assignment for the benefit of creditors,
                                         or the failure of Maker generally to pay its debts as such debts become due, or the taking
                                         of corporate action by Maker in furtherance of any of the foregoing.

  

     

     

    

 

		(c)	Involuntary
                         Bankruptcy, Etc. The entry of a decree or order for relief by a court having jurisdiction in the
                         premises in respect of maker in an involuntary case under any applicable bankruptcy, insolvency or similar
                         law, for the appointing of a receiver, liquidator, assignee, custodian, trustee, sequestrator (or similar
                         official) for Maker or for any substantial part of its property, or ordering the winding-up or liquidation
                         of the affairs of Maker, and the continuance of any such decree or order unstayed and in effect for a
                         period of 60 consecutive days.

 

	5.	Remedies.

 

		(a)	Upon
                                         the occurrence of an Event of Default specified in Section 4(a) hereof, Payee may, by
                                         written notice to Maker, declare this Note to be due immediately and payable, whereupon
                                         the unpaid principal amount of this Note, and all other amounts payable thereunder, shall
                                         become immediately due and payable without presentment, demand, protest or other notice
                                         of any kind, all of which are hereby expressly waived, anything contained herein or in
                                         the documents evidencing the same to the contrary notwithstanding.

 

		(b)	Upon
                                         the occurrence of an Event of Default specified in Sections 4(b) and 4(c), the unpaid
                                         principal balance of this Note, and all other sums payable with regard to this Note,
                                         shall automatically and immediately become due and payable, in all cases without any
                                         action on the part of Payee.

 

		6.	Waivers.
                        Maker and all endorsers and guarantors of, and sureties for, this Note waive presentment for payment,
                        demand, notice of dishonor, protest, and notice of protest with regard to the Note, all errors, defects
                        and imperfections in any proceedings instituted by Payee under the terms of this Note, and all benefits
                        that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal,
                        or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale
                        under execution, or providing for any stay of execution, exemption from civil process, or extension of
                        time for payment; and Maker agrees that any real estate that may be levied upon pursuant to a judgment
                        obtained by virtue hereof, on any writ of execution issued hereon, may be sold upon any such writ in whole
                        or in part in any order desired by Payee.

 

		7.	Unconditional
                        Liability. Maker hereby waives all notices in connection with the delivery, acceptance, performance,
                        default, or enforcement of the payment of this Note, and agrees that its liability shall be unconditional,
                        without regard to the liability of any other party, and shall not be affected in any manner by any indulgence,
                        extension of time, renewal, waiver or modification granted or consented to by Payee, and consents to any
                        and all extensions of time, renewals, waivers, or modifications that may be granted by Payee with respect
                        to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors,
                        or sureties may become parties hereto without notice to Maker or affecting Maker’s liability hereunder.

  

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		8.	Notices.
                        Any notice called for hereunder shall be deemed properly given if (i) sent by certified mail, return
                        receipt requested, (ii) personally delivered, (iii) dispatched by any form of private or governmental
                        express mail or delivery service providing receipted delivery or (iv) sent by facsimile or (v) to the
                        following addresses or to such other address as either party may designate by notice in accordance with
                        this Section:

 

If
to Maker:

 

Orisun
Acquisition Corp.

Address:

Attn:
Wei Chen

 

If
to Payee:

 

Everstone
Investments LLC

Address:

Attn:
Wei Chen

 

Notice
shall be deemed given on the earlier of (i) actual receipt by the receiving party, (ii) the date shown on a facsimile transmission
confirmation, (iii) the date reflected on a signed delivery receipt, or (iv) two (2) Business Days following tender of delivery
or dispatch by express mail or delivery service.

 

		9.	Construction.
                                         THIS NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF NEW YORK,
                                         WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

 

		10.	Jurisdiction.
                                         The courts of New York have exclusive jurisdiction to settle any dispute arising
                                         out of or in connection with this agreement (including a dispute relating to any non-contractual
                                         obligations arising out of or in connection with this agreement) and the parties submit
                                         to the exclusive jurisdiction of the courts of New York.

 

		11.	Severability.
                                         Any provision contained in this Note which is prohibited or unenforceable in any
                                         jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition
                                         or unenforceability without invalidating the remaining provisions hereof, and any such
                                         prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable
                                         such provision in any other jurisdiction.

 

		12.	Trust
                                         Waiver. Notwithstanding anything herein to the contrary, the Payee hereby waives
                                         any and all right, title, interest or claim of any kind (“Claim”)
                                         in or to any amounts contained in the trust account in which the proceeds of the initial
                                         public offering (the “IPO”) conducted by the Maker and the proceeds
                                         of the sale of securities in a private placement to occur prior to the effectiveness
                                         of the IPO, as described in greater detail in the registration statement and prospectus
                                         to be filed with the Securities and Exchange Commission in connection with the IPO, will
                                         be placed, and hereby agrees not to seek recourse, reimbursement, payment or satisfaction
                                         for any Claim from the trust account or any distribution therefrom for any reason whatsoever.

 

		13.	Amendment;
                                         Waiver. Any amendment hereto or waiver of any provision hereof may be made with,
                                         and only with, the written consent of the Maker and the Payee.

  

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		14.	Assignment.
                                         No assignment or transfer of this Note or any rights or obligations hereunder may
                                         be made by any party hereto (by operation of law or otherwise) without the prior written
                                         consent of the other party hereto and any attempted assignment without the required consent
                                         shall be void.

 

		15.	Further
                                         Assurance. The Maker shall, at its own cost and expense, execute and do (or procure
                                         to be executed and done by any other necessary party) all such deeds, documents, acts
                                         and things as the Payee may from time to time require as may be necessary to give full
                                         effect to this Promissory Note.

 

IN
WITNESS WHEREOF, Maker, intending to be legally bound hereby, has caused this Note to be duly executed on the day and year first
above written.

 

	 	ORISUN
    ACQUISITION CORP.
	 	 
	 	By:	/s/
    Wei Chen
	 	 	Name: 	Wei
    Chen
	 	 	Title:	President
    and Chairman of the Board

 

 

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