Exhibit 10.4


 


REGISTRATION RIGHTS AGREEMENT


 


THIS REGISTRATION RIGHTS AGREEMENT (this
“Agreement”) is entered into as of the 2nd day of August, 2019, by and among Orisun Acquisition Corp.,
a Delaware corporation (the “Company”) and the undersigned parties listed under Investor on the signature
page hereto (each, an “Investor” and collectively, the “Investors”).


 


WHEREAS, the Investors and the Company desire
to enter into this Agreement to provide the Investors with certain rights relating to the registration of the securities held by
them as of the date hereof;


 


NOW, THEREFORE, in consideration of the
mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree as follows:


 


1. DEFINITIONS. The following capitalized
terms used herein have the following meanings:


 


“Agreement” means
this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.


 


“Business Combination”
means the acquisition of direct or indirect ownership through a merger, share exchange, asset acquisition, share purchase, recapitalization,
reorganization or other similar type of transaction, of one or more businesses or entities.


 


“Commission” means
the Securities and Exchange Commission, or any other Federal agency then administering the Securities Act or the Exchange Act.


 


“Common Stock”
means the common stock, par value $0.00001 per share, of the Company.


 


“Company” is defined
in the preamble to this Agreement.


 


“Demand Registration”
is defined in Section 2.1.1.


 


“Demanding Holder”
is defined in Section 2.1.1.


 


“Exchange Act”
means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder,
all as the same shall be in effect at the time.


 


“Form S-3” is
defined in Section 2.3.


 


“Indemnified Party”
is defined in Section 4.3.


 


“Indemnifying Party”
is defined in Section 4.3.


 




     


     


    

 


“Initial Shares”
means all of the outstanding shares of Common Stock issued prior to the consummation of its initial public offering.


 


“Investor” is
defined in the preamble to this Agreement.


 


“Investor Indemnified Party”
is defined in Section 4.1.


 


“Maximum Number of Shares”
is defined in Section 2.1.4.


 


“Notices” is defined
in Section 6.3.


 


“Piggy-Back Registration”
is defined in Section 2.2.1.


 


“Over-Allotment Units”
means the additional number of Private Units the Investors will be required to purchase in the event that the underwriters in the
Company’s initial public offering exercise their over-allotment option, as described in the prospectus relating to the Company’s
initial public offering.


 


“Private Units”
means up to 238,000 Units, 220,000 of which the Investors are privately purchasing simultaneously with the consummation of the
Company’s initial public offering and up to 18,000 Private Units that the Investors have agreed to purchase if the underwriter
exercises its over-allotment option.


 


“Register,” “Registered”
and “Registration” mean a registration effected by preparing and filing a registration statement or similar
document in compliance with the requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder,
and such registration statement becoming effective.


 


“Registrable Securities”
means (i) the Initial Shares, (ii) the Private Units (and underlying securities), (iii) the Over-Allotment Units (and underlying
shares of Common Stock), if any, and (iv) any securities issuable upon conversion of loans from Investors to the Company for the
Company’s payment of its working capital, if any (the “Working Capital Loan Securities”). Registrable Securities
include any warrants, rights, shares of capital stock or other securities of the Company issued as a dividend or other distribution
with respect to or in exchange for or in replacement of such Initial Shares, Private Units (and underlying shares of Common Stock),
Over-Allotment Units (and underlying shares of Common Stock) and Working Capital Loan Securities. As to any particular Registrable
Securities, such securities shall cease to be Registrable Securities when: (a) a Registration Statement with respect to the sale
of such securities shall have become effective under the Securities Act and such securities shall have been sold, transferred,
disposed of or exchanged in accordance with such Registration Statement; (b) such securities shall have been otherwise transferred,
new certificates for them not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent
public distribution of them shall not require registration under the Securities Act; (c) such securities shall have ceased to be
outstanding, or (d) the Registrable Securities are freely saleable under Rule 144 without volume limitations.


 




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“Registration Statement”
means a registration statement filed by the Company with the Commission in compliance with the Securities Act and the rules and
regulations promulgated thereunder for a public offering and sale of equity securities, or securities or other obligations exercisable
or exchangeable for, or convertible into, equity securities (other than a registration statement on Form S-4 or Form S-8, or their
successors, or any registration statement covering only securities proposed to be issued in exchange for securities or assets of
another entity).


 


“Release Date”
means the date on which the Initial Shares are disbursed from escrow pursuant to Section 3 of that certain Stock Escrow Agreement
dated as of August 2, 2019 by and among the Investors and American Stock Transfer & Trust Company, LLC.


 


“Securities Act”
means the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder, all as the
same shall be in effect at the time.


 


“Underwriter”
means a securities dealer who purchases any Registrable Securities as principal in an underwritten offering and not as part of
such dealer’s market-making activities.


 


“Units” means
the units of the Company, each comprised of one share of Common Stock, one redeemable Warrant, and one right to receive one-tenth
(1/10) of a share of Common Stock.


 


“Warrant(s)” means
the warrants of the Company.


 


2. REGISTRATION RIGHTS.


 


2.1 Demand Registration.


 


2.1.1 Request for Registration. At
any time and from time to time on or after (i) the date that the Company consummates a Business Combination with respect to the
Private Units (or underlying shares of common stock), Over-Allotment Units (or underlying shares of Common Stock) and Working Capital
Loan Securities or (ii) three months prior to the Release Date with respect to all other Registrable Securities, the holders of
a majority-in-interest of the Registrable Securities, as the case may be, held by the Investors, officers or directors of the Company
or their affiliates, or the transferees of the Investors, may make a written demand, on no more than two occasions, for registration
under the Securities Act of all or part of their Registrable Securities, as the case may be (a “Demand Registration”).
Any demand for a Demand Registration shall specify the number of shares of Registrable Securities proposed to be sold and the intended
method(s) of distribution thereof. The Company will notify, in writing, all holders of Registrable Securities of the demand, with
ten (10) days of the Company’s receipt of such demand, and each holder of Registrable Securities who wishes to include all
or a portion of such holder’s Registrable Securities in the Demand Registration (each such holder including shares of Registrable
Securities in such registration, a “Demanding Holder”) shall so notify the Company within fifteen (15)
days after the receipt by the holder of the notice from the Company. Upon any such request, the Demanding Holders shall be entitled
to have their Registrable Securities included in the Demand Registration, subject to Section 2.1.4 and the provisos set forth in
Section 3.1.1. The Company shall not be obligated to effect more than an aggregate of two (2) Demand Registrations under this Section
2.1.1 in respect of all Registrable Securities.


 




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2.1.2 Effective Registration. A registration
will not count as a Demand Registration until the Registration Statement filed with the Commission with respect to such Demand
Registration has been declared effective and the Company has complied with all of its obligations under this Agreement with respect
thereto; provided, however, that if, after such Registration Statement has been declared effective, the offering of Registrable
Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other
governmental agency or court, the Registration Statement with respect to such Demand Registration will be deemed not to have been
declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii)
a majority-in-interest of the Demanding Holders thereafter elect to continue the offering; provided, further, that the Company
shall not be obligated to file a second Registration Statement until a Registration Statement that has been filed is counted as
a Demand Registration or is terminated.


 


2.1.3 Underwritten Offering. If a majority-in-interest
of the Demanding Holders so elect and such holders so advise the Company as part of their written demand for a Demand Registration,
the offering of such Registrable Securities pursuant to such Demand Registration shall be in the form of an underwritten offering.
In such event, the right of any holder to include its Registrable Securities in such registration shall be conditioned upon such
holder’s participation in such underwriting and the inclusion of such holder’s Registrable Securities in the underwriting
to the extent provided herein. All Demanding Holders proposing to distribute their Registrable Securities through such underwriting
shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such underwriting
by a majority-in-interest of the holders initiating the Demand Registration.


 


2.1.4 Reduction of Offering. If the
managing Underwriter or Underwriters for a Demand Registration that is to be an underwritten offering advises the Company and the
Demanding Holders in writing that the dollar amount or number of shares of Registrable Securities which the Demanding Holders desire
to sell, taken together with all other shares of Common stock or other securities which the Company desires to sell and the shares
of Common Stock, if any, as to which registration has been requested pursuant to written contractual piggy-back registration rights
held by other shareholders of the Company who desire to sell, exceeds the maximum dollar amount or maximum number of shares that
can be sold in such offering without adversely affecting the proposed offering price, the timing, the distribution method, or the
probability of success of such offering (such maximum dollar amount or maximum number of shares, as applicable, the “Maximum
Number of Shares”), then the Company shall include in such registration: (i) first, the Registrable Securities as
to which Demand Registration has been requested by the Demanding Holders (pro rata in accordance with the number of shares that
each such Person has requested be included in such registration, regardless of the number of shares held by each such Person (such
proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number
of Shares; (ii) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (i), the
shares of Common Stock or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number
of Shares; and (iii) third, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (i)
and (ii), the shares of Common Stock or other securities for the account of other persons that the Company is obligated to register
pursuant to written contractual arrangements with such persons and that can be sold without exceeding the Maximum Number of Shares.


 




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2.1.5 Withdrawal. If a majority-in-interest
of the Demanding Holders disapprove of the terms of any underwriting or are not entitled to include all of their Registrable Securities
in any offering, such majority-in-interest of the Demanding Holders may elect to withdraw from such offering by giving written
notice to the Company and the Underwriter or Underwriters of their request to withdraw prior to the effectiveness of the Registration
Statement filed with the Commission with respect to such Demand Registration. If the majority-in-interest of the Demanding Holders
withdraws from a proposed offering relating to a Demand Registration, then such registration shall not count as a Demand Registration
provided for in Section 2.1. Notwithstanding any such withdrawal, the Company shall pay all expenses incurred by the holders of
Registrable Securities in connection with such Demand Registration as provided in Section 3.3.


 


2.2 Piggy-Back Registration.


 


2.2.1 Piggy-Back Rights. If at any
time on or after the date the Company consummates a Business Combination the Company proposes to file a Registration Statement
under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable
for, or convertible into, equity securities, by the Company for its own account or for shareholders of the Company for their account
(or by the Company and by shareholders of the Company including, without limitation, pursuant to Section 2.1), other than a Registration
Statement (i) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange offer or offering
of securities solely to the Company’s existing shareholders, (iii) for an offering of debt that is convertible into equity
securities of the Company or (iv) for a dividend reinvestment plan, then the Company shall (x) give written notice of such proposed
filing to the holders of Registrable Securities as soon as practicable but in no event less than ten (10) days before the anticipated
filing date, which notice shall describe the amount and type of securities to be included in such offering, the intended method(s)
of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, of the offering, and (y) offer to the
holders of Registrable Securities in such notice the opportunity to register the sale of such number of shares of Registrable Securities
as such holders may request in writing within five (5) days following receipt of such notice (a “Piggy-Back Registration”).
The Company shall cause such Registrable Securities to be included in such registration and shall use its best efforts to cause
the managing Underwriter or Underwriters of a proposed underwritten offering to permit the Registrable Securities requested to
be included in a Piggy-Back Registration on the same terms and conditions as any similar securities of the Company and to permit
the sale or other disposition of such Registrable Securities in accordance with the intended method(s) of distribution thereof.
All holders of Registrable Securities proposing to distribute their securities through a Piggy-Back Registration that involves
an Underwriter or Underwriters shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters
selected for such Piggy-Back Registration.


 




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2.2.2 Reduction of Offering. If the
managing Underwriter or Underwriters for a Piggy-Back Registration that is to be an underwritten offering advises the Company and
the holders of Registrable Securities in writing that the dollar amount or number of shares of Common Stock which the Company desires
to sell, taken together with the shares of Common Stock, if any, as to which registration has been demanded pursuant to written
contractual arrangements with persons other than the holders of Registrable Securities hereunder, the Registrable Securities as
to which registration has been requested under this Section 2.2, and the shares of Common Stock, if any, as to which registration
has been requested pursuant to the written contractual piggy-back registration rights of other shareholders of the Company, exceeds
the Maximum Number of Shares, then the Company shall include in any such registration:


 


a) If the registration is undertaken
for the Company’s account: (A) first, the shares of Common Stock or other securities that the Company desires to sell that
can be sold without exceeding the Maximum Number of Shares; (B) second, to the extent that the Maximum Number of Shares has not
been reached under the foregoing clause (A), the shares of Common Stock or other securities, if any, comprised of Registrable Securities,
as to which registration has been requested pursuant to the applicable written contractual piggy-back registration rights of such
security holders, Pro Rata, that can be sold without exceeding the Maximum Number of Shares; and (C) third, to the extent that
the Maximum Number of Shares has not been reached under the foregoing clauses (A) and (B), the shares of Common Stock or other
securities for the account of other persons that the Company is obligated to register pursuant to written contractual piggy-back
registration rights with such persons and that can be sold without exceeding the Maximum Number of Shares;


 


b) If the registration is a “demand”
registration undertaken at the demand of persons other than either the holders of Registrable Securities, (A) first, the shares
of Common Stock or other securities for the account of the demanding persons that can be sold without exceeding the Maximum Number
of Shares; (B) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (A), the
shares of Common Stock or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number
of Shares; (C) third, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A) and
(B), collectively the shares of Common Stock or other securities comprised of Registrable Securities, Pro Rata, as to which registration
has been requested pursuant to the terms hereof, that can be sold without exceeding the Maximum Number of Shares; and (D) fourth,
to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A), (B) and (C), the shares of
Common Stock or other securities for the account of other persons that the Company is obligated to register pursuant to written
contractual arrangements with such persons, that can be sold without exceeding the Maximum Number of Shares.


 


2.2.3 Withdrawal. Any holder of Registrable
Securities may elect to withdraw such holder’s request for inclusion of Registrable Securities in any Piggy-Back Registration
by giving written notice to the Company of such request to withdraw prior to the effectiveness of the Registration Statement. The
Company (whether on its own determination or as the result of a withdrawal by persons making a demand pursuant to written contractual
obligations) may withdraw a Registration Statement at any time prior to the effectiveness of such Registration Statement. Notwithstanding
any such withdrawal, the Company shall pay all expenses incurred by the holders of Registrable Securities in connection with such
Piggy-Back Registration as provided in Section 3.3.


 




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2.2.4 Registrations on Form S-3. The
holders of Registrable Securities may at any time and from time to time, request in writing that the Company register the resale
of any or all of such Registrable Securities on Form S-3 or any similar short-form registration which may be available at such
time (“Form S-3”); provided, however, that the Company shall not be obligated to effect such request
through an underwritten offering. Upon receipt of such written request, the Company will promptly give written notice of the proposed
registration to all other holders of Registrable Securities, and, as soon as practicable thereafter, effect the registration of
all or such portion of such holder’s or holders’ Registrable Securities as are specified in such request, together
with all or such portion of the Registrable Securities or other securities of the Company, if any, of any other holder or holders
joining in such request as are specified in a written request given within fifteen (15) days after receipt of such written notice
from the Company; provided, however, that the Company shall not be obligated to effect any such registration pursuant to this Section
2.3: (i) if Form S-3 is not available for such offering; or (ii) if the holders of the Registrable Securities, together with the
holders of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities
and such other securities (if any) at any aggregate price to the public of less than $500,000. Registrations effected pursuant
to this Section 2.3 shall not be counted as Demand Registrations effected pursuant to Section 2.1.


 


3. REGISTRATION PROCEDURES.


 


3.1 Filings; Information. Whenever
the Company is required to effect the registration of any Registrable Securities pursuant to Section 2, the Company shall use its
best efforts to effect the registration and sale of such Registrable Securities in accordance with the intended method(s) of distribution
thereof as expeditiously as practicable, and in connection with any such request:


 


3.1.1 Filing Registration Statement.
The Company shall use its best efforts to, as expeditiously as possible after receipt of a request for a Demand Registration pursuant
to Section 2.1, prepare and file with the Commission a Registration Statement on any form for which the Company then qualifies
or which counsel for the Company shall deem appropriate and which form shall be available for the sale of all Registrable Securities
to be registered thereunder in accordance with the intended method(s) of distribution thereof, and shall use its best efforts to
cause such Registration Statement to become effective and use its best efforts to keep it effective for the period required by
Section 3.1.3; provided, however, that the Company shall have the right to defer any Demand Registration for up to thirty (30)
days, and any Piggy-Back Registration for such period as may be applicable to deferment of any demand registration to which such
Piggy-Back Registration relates, in each case if the Company shall furnish to the holders a certificate signed by Chief Executive
Officer or Chairman of the Company stating that, in the good faith judgment of the Board of Directors of the Company, it would
be materially detrimental to the Company and its shareholders for such Registration Statement to be effected at such time; provided
further, however, that the Company shall not have the right to exercise the right set forth in this provision more than once in
any 365-day period in respect of a Demand Registration hereunder.


 




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3.1.2 Copies. The Company shall, prior
to filing a Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge to the holders
of Registrable Securities included in such registration, and such holders’ legal counsel, copies of such Registration Statement
as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto
and documents incorporated by reference therein), the prospectus included in such Registration Statement (including each preliminary
prospectus), and such other documents as the holders of Registrable Securities included in such registration or legal counsel for
any such holders may request in order to facilitate the disposition of the Registrable Securities owned by such holders.


 


3.1.3 Amendments and Supplements. The
Company shall prepare and file with the Commission such amendments, including post-effective amendments, and supplements to such
Registration Statement and the prospectus used in connection therewith as may be necessary to keep such Registration Statement
effective and in compliance with the provisions of the Securities Act until all Registrable Securities and other securities covered
by such Registration Statement have been disposed of in accordance with the intended method(s) of distribution set forth in such
Registration Statement or such securities have been withdrawn.


 


3.1.4 Notification. After the filing
of a Registration Statement, the Company shall promptly, and in no event more than two (2) business days after such filing, notify
the holders of Registrable Securities included in such Registration Statement of such filing, and shall further notify such holders
promptly and confirm such advice in writing in all events within two (2) business days of the occurrence of any of the following:
(i) when such Registration Statement becomes effective; (ii) when any post-effective amendment to such Registration Statement becomes
effective; (iii) the issuance or threatened issuance by the Commission of any stop order (and the Company shall take all actions
required to prevent the entry of such stop order or to remove it if entered); and (iv) any request by the Commission for any amendment
or supplement to such Registration Statement or any prospectus relating thereto or for additional information or of the occurrence
of an event requiring the preparation of a supplement or amendment to such prospectus so that, as thereafter delivered to the purchasers
of the securities covered by such Registration Statement, such prospectus will not contain an untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary to make the statements therein (in the case of the
prospectus, in the light of the circumstances under which they were made), not misleading, and promptly make available to the holders
of Registrable Securities included in such Registration Statement any such supplement or amendment; except that before filing with
the Commission a Registration Statement or prospectus or any amendment or supplement thereto, including documents incorporated
by reference, the Company shall furnish to the holders of Registrable Securities included in such Registration Statement and to
the legal counsel for any such holders, copies of all such documents proposed to be filed sufficiently in advance of filing to
provide such holders and legal counsel with a reasonable opportunity to review such documents and comment thereon, and the Company
shall not file any Registration Statement or prospectus or amendment or supplement thereto, including documents incorporated by
reference, to which such holders or their legal counsel shall object.


 




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3.1.5 State Securities Laws Compliance.
The Company shall use its best efforts to (i) register or qualify the Registrable Securities covered by the Registration Statement
under such securities or “blue sky” laws of such jurisdictions in the United States as the holders of Registrable Securities
included in such Registration Statement (in light of their intended plan of distribution) may request and (ii) take such action
necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such
other governmental authorities as may be necessary by virtue of the business and operations of the Company and do any and all other
acts and things that may be necessary or advisable to enable the holders of Registrable Securities included in such Registration
Statement to consummate the disposition of such Registrable Securities in such jurisdictions; provided, however, that the Company
shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify
but for this paragraph or subject itself to taxation in any such jurisdiction.


 


3.1.6 Agreements for Disposition. The
Company shall enter into customary agreements (including, if applicable, an underwriting agreement in customary form) and take
such other actions as are reasonably required in order to expedite or facilitate the disposition of such Registrable Securities.
The representations, warranties and covenants of the Company in any underwriting agreement which are made to or for the benefit
of any Underwriters, to the extent applicable, shall also be made to and for the benefit of the holders of Registrable Securities
included in such registration statement. No holder of Registrable Securities included in such registration statement shall be required
to make any representations or warranties in the underwriting agreement except, if applicable, with respect to such holder’s
organization, good standing, authority, title to Registrable Securities, lack of conflict of such sale with such holder’s
material agreements and organizational documents, and with respect to written information relating to such holder that such holder
has furnished in writing expressly for inclusion in such Registration Statement.


 


3.1.7 Cooperation. The principal executive
officer of the Company, the principal financial officer of the Company, the principal accounting officer of the Company and all
other officers and members of the management of the Company shall cooperate fully in any offering of Registrable Securities hereunder,
which cooperation shall include, without limitation, the preparation of the Registration Statement with respect to such offering
and all other offering materials and related documents, and participation in meetings with Underwriters, attorneys, accountants
and potential investors.


 


3.1.8 Records. The Company shall make
available for inspection by the holders of Registrable Securities included in such Registration Statement, any Underwriter participating
in any disposition pursuant to such registration statement and any attorney, accountant or other professional retained by any holder
of Registrable Securities included in such Registration Statement or any Underwriter, all financial and other records, pertinent
corporate documents and properties of the Company, as shall be necessary to enable them to exercise their due diligence responsibility,
and cause the Company’s officers, directors and employees to supply all information requested by any of them in connection
with such Registration Statement.


 




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3.1.9 Opinions and Comfort Letters.
In the case of any underwritten offering or if reasonably requested by any participant in any other offering pursuant to a Registration
Statement filed pursuant to this Agreement, the Company shall obtain opinions of counsel representing the Company for the purposes
of a registration pursuant to this Agreement, addressed to the holders participating in such registration, the placement agent
or sales agent, if any, and the Underwriters, if any, covering such legal matters with respect to such registration in respect
of which such opinion is being given as such holders, placement agent, sales agent, or Underwriter may reasonably request and as
are customarily included in such opinions and negative assurance letters, and reasonably satisfactory to a holders of a majority-in-interest
of the Registrable Securities included in such registration. In the case of any underwritten offering or if reasonably requested
by any participant in any other offering pursuant to a Registration Statement filed pursuant to this Agreement, the Company shall
obtain a “cold comfort” letters from the Company’s independent registered public accountants in the event of
an underwritten public offering pursuant to this Agreement, in customary form and covering such matters of the type customarily
covered by “cold comfort” letters as the managing Underwriter may reasonably request, and reasonably satisfactory to
a holders of a majority-in-interest of the Registrable Securities included in such registration. The Company shall furnish to each
holder of Registrable Securities included in any Registration Statement a signed counterpart, addressed to such holder, of (i) any
opinion of counsel to the Company delivered to any Underwriter and (ii) any comfort letter from the Company’s independent
public accountants delivered to any Underwriter.


 


3.1.10 Earnings Statement. The Company
shall comply with all applicable rules and regulations of the Commission and the Securities Act, and make available to its shareholders,
as soon as practicable, an earnings statement covering a period of twelve (12) months, which earnings statement shall satisfy the
provisions of Section 11(a) of the Securities Act and Rule 158 thereunder.


 


3.1.11 Listing. The Company shall use
its best efforts to cause all Registrable Securities included in any registration to be listed on such exchanges or otherwise designated
for trading in the same manner as similar securities issued by the Company are then listed or designated or, if no such similar
securities are then listed or designated, in a manner satisfactory to the holders of a majority of the Registrable Securities included
in such registration.


 


3.1.12 Road Show. If the registration
involves the registration of Registrable Securities involving gross proceeds in excess of $5,000,000, the Company shall use its
reasonable efforts to make available senior executives of the Company to participate in customary “road show” presentations
that may be reasonably requested by the Underwriter in any underwritten offering.


 


3.2 Obligation to Suspend Distribution.
Upon receipt of any notice from the Company of the happening of any event of the kind described in Section 3.1.4(iv), or, in the
case of a resale registration on Form S-3 pursuant to Section 2.3 hereof, upon any suspension by the Company, pursuant to a written
insider trading compliance program adopted by the Company’s Board of Directors, of the ability of all “insiders”
covered by such program to transact in the Company’s securities because of the existence of material non-public information,
each holder of Registrable Securities included in any registration shall immediately discontinue disposition of such Registrable
Securities pursuant to the Registration Statement covering such Registrable Securities until such holder receives the supplemented
or amended prospectus contemplated by Section 3.1.4(iv) or the restriction on the ability of “insiders” to transact
in the Company’s securities is removed, as applicable, and, if so directed by the Company, each such holder will deliver
to the Company all copies, other than permanent file copies then in such holder’s possession, of the most recent prospectus
covering such Registrable Securities at the time of receipt of such notice.


 




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3.3 Registration Expenses. The Company
shall bear all costs and expenses incurred in connection with any Demand Registration pursuant to Section 2.1, any Piggy-Back Registration
pursuant to Section 2.2, and any registration on Form S-3 effected pursuant to Section 2.3, and all expenses incurred in performing
or complying with its other obligations under this Agreement, whether or not the Registration Statement becomes effective, including,
without limitation: (i) all registration and filing fees; (ii) fees and expenses of compliance with securities or “blue sky”
laws (including fees and disbursements of counsel in connection with blue sky qualifications of the Registrable Securities); (iii)
printing expenses; (iv) the Company’s internal expenses (including, without limitation, all salaries and expenses of its
officers and employees); (v) the fees and expenses incurred in connection with the listing of the Registrable Securities as required
by Section 3.1.11; (vi) Financial Industry Regulatory Authority fees; (vii) fees and disbursements of counsel for the Company and
fees and expenses for independent certified public accountants retained by the Company (including the expenses or costs associated
with the delivery of any opinions or comfort letters requested pursuant to Section 3.1.9); (viii) the reasonable fees and expenses
of any special experts retained by the Company in connection with such registration and (ix) the reasonable fees and expenses of
one legal counsel selected by the holders of a majority-in-interest of the Registrable Securities included in such registration.
The Company shall have no obligation to pay any underwriting discounts or selling commissions attributable to the Registrable Securities
being sold by the holders thereof, which underwriting discounts or selling commissions shall be borne by such holders. Additionally,
in an underwritten offering, all selling shareholders and the Company shall bear the expenses of the Underwriter pro rata in proportion
to the respective amount of shares each is selling in such offering.


 


3.4 Information. The holders of Registrable
Securities shall provide such information as may reasonably be requested by the Company, or the managing Underwriter, if any, in
connection with the preparation of any Registration Statement, including amendments and supplements thereto, in order to effect
the registration of any Registrable Securities under the Securities Act pursuant to Section 2 and in connection with the Company’s
obligation to comply with Federal and applicable state securities laws.


 


3.5 Limitations on Registration Rights.
Notwithstanding anything herein to the contrary, (i) Chardan may not exercise its rights under Sections 2.1 and 2.2 hereunder after
five (5) and seven (7) years after the effective date of the registration statement relating to the Company’s initial public
offering, respectively, and (ii) Chardan may not exercise its rights under Section 2.1 more than one time.


 




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4. INDEMNIFICATION AND CONTRIBUTION.


 


4.1 Indemnification by the Company.
The Company agrees to indemnify and hold harmless each Investor and each other holder of Registrable Securities, and each of their
respective officers, employees, affiliates, directors, partners, members, attorneys and agents, and each person, if any, who controls
an Investor and each other holder of Registrable Securities (within the meaning of Section 15 of the Securities Act or Section
20 of the Exchange Act) (each, an “Investor Indemnified Party”), from and against any expenses, losses,
judgments, claims, damages or liabilities, whether joint or several, arising out of or based upon any untrue statement (or allegedly
untrue statement) of a material fact contained in any Registration Statement under which the sale of such Registrable Securities
was registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration
Statement, or any amendment or supplement to such Registration Statement, or arising out of or based upon any omission (or alleged
omission) to state a material fact required to be stated therein or necessary to make the statements therein not misleading, or
any violation by the Company of the Securities Act or any rule or regulation promulgated thereunder applicable to the Company and
relating to action or inaction required of the Company in connection with any such registration; and the Company shall promptly
reimburse the Investor Indemnified Party for any legal and any other expenses reasonably incurred by such Investor Indemnified
Party in connection with investigating and defending any such expense, loss, judgment, claim, damage, liability or action; provided,
however, that the Company will not be liable in any such case to the extent that any such expense, loss, claim, damage or liability
arises out of or is based upon any untrue statement or allegedly untrue statement or omission or alleged omission made in such
Registration Statement, preliminary prospectus, final prospectus, or summary prospectus, or any such amendment or supplement, in
reliance upon and in conformity with information furnished to the Company, in writing, by such selling holder expressly for use
therein. The Company also shall indemnify any Underwriter of the Registrable Securities, their officers, affiliates, directors,
partners, members and agents and each person who controls such Underwriter on substantially the same basis as that of the indemnification
provided above in this Section 4.1.


 


4.2 Indemnification by Holders of Registrable
Securities. Each selling holder of Registrable Securities will, in the event that any registration is being effected under
the Securities Act pursuant to this Agreement of any Registrable Securities held by such selling holder, indemnify and hold harmless
the Company, each of its directors and officers and each Underwriter (if any), and each other selling holder and each other person,
if any, who controls another selling holder or such Underwriter within the meaning of the Securities Act, against any losses, claims,
judgments, damages or liabilities, whether joint or several, insofar as such losses, claims, judgments, damages or liabilities
(or actions in respect thereof) arise out of or are based upon any untrue statement or allegedly untrue statement of a material
fact contained in any Registration Statement under which the sale of such Registrable Securities was registered under the Securities
Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement, or any amendment
or supplement to the Registration Statement, or arise out of or are based upon any omission or the alleged omission to state a
material fact required to be stated therein or necessary to make the statement therein not misleading, if the statement or omission
was made in reliance upon and in conformity with information furnished in writing to the Company by such selling holder expressly
for use therein, and shall reimburse the Company, its directors and officers, and each other selling holder or controlling person
for any legal or other expenses reasonably incurred by any of them in connection with investigation or defending any such loss,
claim, damage, liability or action. Each selling holder’s indemnification obligations hereunder shall be several and not
joint and shall be limited to the amount of any net proceeds actually received by such selling holder.


 




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4.3 Conduct of Indemnification Proceedings.
Promptly after receipt by any person of any notice of any loss, claim, damage or liability or any action in respect of which indemnity
may be sought pursuant to Section 4.1 or 4.2, such person (the “Indemnified Party”) shall, if a claim in respect thereof
is to be made against any other person for indemnification hereunder, notify such other person (the “Indemnifying Party”)
in writing of the loss, claim, judgment, damage, liability or action; provided, however, that the failure by the Indemnified Party
to notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability which the Indemnifying Party may have
to such Indemnified Party hereunder, except and solely to the extent the Indemnifying Party is actually prejudiced by such failure.
If the Indemnified Party is seeking indemnification with respect to any claim or action brought against the Indemnified Party,
then the Indemnifying Party shall be entitled to participate in such claim or action, and, to the extent that it wishes, jointly
with all other Indemnifying Parties, to assume control of the defense thereof with counsel satisfactory to the Indemnified Party.
After notice from the Indemnifying Party to the Indemnified Party of its election to assume control of the defense of such claim
or action, the Indemnifying Party shall not be liable to the Indemnified Party for any legal or other expenses subsequently incurred
by the Indemnified Party in connection with the defense thereof other than reasonable costs of investigation; provided, however,
that in any action in which both the Indemnified Party and the Indemnifying Party are named as defendants, the Indemnified Party
shall have the right to employ separate counsel (but no more than one such separate counsel) to represent the Indemnified Party
and its controlling persons who may be subject to liability arising out of any claim in respect of which indemnity may be sought
by the Indemnified Party against the Indemnifying Party, with the fees and expenses of such counsel to be paid by such Indemnifying
Party if, based upon the written opinion of counsel of such Indemnified Party, representation of both parties by the same counsel
would be inappropriate due to actual or potential differing interests between them. No Indemnifying Party shall, without the prior
written consent of the Indemnified Party, consent to entry of judgment or effect any settlement of any claim or pending or threatened
proceeding in respect of which the Indemnified Party is or could have been a party and indemnity could have been sought hereunder
by such Indemnified Party, unless such judgment or settlement includes an unconditional release of such Indemnified Party from
all liability arising out of such claim or proceeding.


 


4.4 Contribution.


 


4.4.1 If the indemnification provided for
in the foregoing Sections 4.1, 4.2 and 4.3 is unavailable to any Indemnified Party in respect of any loss, claim, damage, liability
or action referred to herein, then each such Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute
to the amount paid or payable by such Indemnified Party as a result of such loss, claim, damage, liability or action in such proportion
as is appropriate to reflect the relative fault of the Indemnified Parties and the Indemnifying Parties in connection with the
actions or omissions which resulted in such loss, claim, damage, liability or action, as well as any other relevant equitable considerations.
The relative fault of any Indemnified Party and any Indemnifying Party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by such Indemnified Party or such Indemnifying Party and the parties’ relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or omission.


 




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4.4.2 The parties hereto agree that it would
not be just and equitable if contribution pursuant to this Section 4.4 were determined by pro rata allocation or by any other method
of allocation which does not take account of the equitable considerations referred to in the immediately preceding Section 4.4.1.


 


4.4.3 The amount paid or payable by an Indemnified
Party as a result of any loss, claim, damage, liability or action referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Party in connection
with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 4.4, no holder of Registrable
Securities shall be required to contribute any amount in excess of the dollar amount of the net proceeds (after payment of any
underwriting fees, discounts, commissions or taxes) actually received by such holder from the sale of Registrable Securities which
gave rise to such contribution obligation. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f)
of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.


 


5. RULE 144.


 


5.1 Rule 144. The Company covenants
that it shall file any reports required to be filed by it under the Securities Act and the Exchange Act and shall take such further
action as the holders of Registrable Securities may reasonably request, all to the extent required from time to time to enable
such holders to sell Registrable Securities without registration under the Securities Act within the limitation of the exemptions
provided by Rule 144 under the Securities Act, as such Rules may be amended from time to time, or any similar rule or regulation
hereafter adopted by the Commission. Upon the request of any holder of Registrable Securities, the Company shall deliver to such
Holder a written certification of a duly authorized officer as to (A) whether the Company has filed (i) all reports and
other materials required to be filed pursuant to Sections 13(a) or 15(d) of the Exchange Act, as applicable, during the preceding
12 months (or for such shorter period that the Company was required to file such reports and materials), other than Current
Reports on Form 8-K and (ii) current “Form 10 information” (within the meaning of Rule 144 under the Securities
Act) with the Commission reflecting the Company’s status as an entity that is no longer an issuer described in paragraph
(i)(1)(i) of Rule 144 under the Securities Act and (B) the first date that the Company filed “Form 10 information”
(within the meaning of Rule 144 under the Securities Act) with the Commission.


 


6. MISCELLANEOUS.


 


6.1 Other Registration Rights. The
Company represents and warrants that, except as disclosed in the Company’s registration statement on Form S-1 (File No. 333-232356),
no person, other than the holders of the Registrable Securities, has any right to require the Company to register any shares of
the Company’s capital stock for sale or to include shares of the Company’s capital stock in any registration filed
by the Company for the sale of shares of capital stock for its own account or for the account of any other person.


 




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6.2 Assignment; No Third Party Beneficiaries.
This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company
in whole or in part. This Agreement and the rights, duties and obligations of the holders of Registrable Securities hereunder may
be freely assigned or delegated by such holder of Registrable Securities in conjunction with and to the extent of any transfer
of Registrable Securities by any such holder. This Agreement and the provisions hereof shall be binding upon and shall inure to
the benefit of each of the parties, to the permitted assigns of the Investors or holder of Registrable Securities or of any assignee
of the Investors or holder of Registrable Securities. This Agreement is not intended to confer any rights or benefits on any persons
that are not party hereto other than as expressly set forth in Article 4 and this Section 6.2. Any additional holder of Registrable
Securities may become party to this Agreement by executing and delivering a joinder to the Company and the Sponsor in form and
substance reasonably satisfactory to the Company.


 


6.3 Notices. All notices, demands,
requests, consents, approvals or other communications (collectively, “Notices”) required or permitted
to be given hereunder or which are given with respect to this Agreement shall be in writing and shall be personally served, delivered
by reputable air courier service with charges prepaid, or transmitted by hand delivery, telegram, telex or facsimile, addressed
as set forth below, or to such other address as such party shall have specified most recently by written notice. Notice shall be
deemed given on the date of service or transmission if personally served or transmitted by telegram, telex or facsimile; provided,
that if such service or transmission is not on a business day or is after normal business hours, then such notice shall be deemed
given on the next business day. Notice otherwise sent as provided herein shall be deemed given on the next business day following
timely delivery of such notice to a reputable air courier service with an order for next-day delivery.


 


To the Company:


 


Orisun Acquisition Corp.


555 Madison Avenue, Room 543


New York, NY 10022


Attn: Wei Chen, Chief Executive Officer


 


with a copy to:


 


Loeb & Loeb LLP


345 Park Avenue


New York, NY 10154


Attn: Giovanni Caruso, Esq.


 


To an Investor, to the address set forth below such
Investor’s name on Exhibit A hereto.


 


6.4 Severability. This 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 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 Agreement a provision as similar in terms
to such invalid or unenforceable provision as may be possible that is valid and enforceable.


 




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6.5 Counterparts. This Agreement
may be executed in multiple counterparts, each of which shall be deemed an original, and all of which taken together shall constitute
one and the same instrument.


 


6.6 Entire Agreement. This Agreement
(including all agreements entered into pursuant hereto and all certificates and instruments delivered pursuant hereto and thereto)
constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior and contemporaneous
agreements, representations, understandings, negotiations and discussions between the parties, whether oral or written.


 


6.7 Modifications and Amendments.
No amendment, modification or termination of this Agreement shall be binding upon any party unless executed in writing by such
party.


 


6.8 Titles and Headings. Titles and
headings of sections of this Agreement are for convenience only and shall not affect the construction of any provision of this
Agreement.


 


6.9 Waivers and Extensions. Any party
to this Agreement may waive any right, breach or default which such party has the right to waive, provided that such waiver will
not be effective against the waiving party unless it is in writing, is signed by such party, and specifically refers to this Agreement.
Waivers may be made in advance or after the right waived has arisen or the breach or default waived has occurred. Any waiver may
be conditional. No waiver of any breach of any agreement or provision herein contained shall be deemed a waiver of any preceding
or succeeding breach thereof nor of any other agreement or provision herein contained. No waiver or extension of time for performance
of any obligations or acts shall be deemed a waiver or extension of the time for performance of any other obligations or acts.


 


6.10 Remedies Cumulative. In the
event that the Company fails to observe or perform any covenant or agreement to be observed or performed under this Agreement,
the Investor or any other holder of Registrable Securities may proceed to protect and enforce its rights by suit in equity or action
at law, whether for specific performance of any term contained in this Agreement or for an injunction against the breach of any
such term or in aid of the exercise of any power granted in this Agreement or to enforce any other legal or equitable right, or
to take any one or more of such actions, without being required to post a bond. None of the rights, powers or remedies conferred
under this Agreement shall be mutually exclusive, and each such right, power or remedy shall be cumulative and in addition to any
other right, power or remedy, whether conferred by this Agreement or now or hereafter available at law, in equity, by statute or
otherwise.


 


6.11 Governing Law. This Agreement
shall be governed by, interpreted under, and construed in accordance with the internal laws of the State of New York applicable
to agreements made and to be performed within the State of New York, without giving effect to any choice-of-law provisions thereof
that would compel the application of the substantive laws of any other jurisdiction. The venue for any action taken with respect
to the Agreement shall be any state or federal court in New York County in the State of New York.


 




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6.12 Waiver of Trial by Jury. Each
party hereby irrevocably and unconditionally waives the right to a trial by jury in any action, suit, counterclaim or other proceeding
(whether based on contract, tort or otherwise) arising out of, connected with or relating to this Agreement, the transactions contemplated
hereby, or the actions of the Investor in the negotiation, administration, performance or enforcement hereof.


 


[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


 




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IN WITNESS WHEREOF, the parties have caused
this Registration Rights Agreement to be executed and delivered by their duly authorized representatives as of the date first written
above.


 


	 	COMPANY:
	 	 
	 	ORISUN ACQUISITION CORP.
	 	 
	 	By:	/s/ Wei Chen
	 	Name:	Wei Chen
	 	Title:	Chief Executive Officer
	 	 	 
	 	INVESTORS:
	 	 
	 	EVERSTONE INVESTMENTS LLC
	 	 	 
	 	By:	/s/ Wei Chen
	 	Name:	Wei Chen
	 	Title:	Managing Member
	 	 	 
	 	Lu Zhou
	 	 	 
	 	/s/ Lu Zhou
	 	 	 
	 	Ling Wu
	 	 	 
	 	/s/ Ling Wu
	 	 	 
	 	Tony Chi Ming Chan
	 	 	 
	 	/s/ Tony Chi Ming Chan
	 	 	 
	 	Lihua Zheng
	 	 	 
	 	/s/ Lihua Zheng


 


	 	CHARDAN CAPITAL MARKETS, LLC
	 	 	 
	 	By:	/s/ George Kaufman
	 	Name:	George Kaufman
	 	Title:	Managing Director


 


Signature Page to Registration Rights Agreement


 




     


     


    

 


EXHIBIT A


 


Name and Address of Initial Shareholders


To all Initial Shareholders:


 


c/o Orisun Acquisition Corp.


555 Madison Avenue, Room 543


New York, NY 10022


 


To Chardan Capital Markets, LLC:


 


Chardan Capital Markets, LLC


17 State Street, 21st Floor


New York, New York 10004