Exhibit 10.3


 


Execution Version


 


REGISTRATION RIGHTS AGREEMENT


 


THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”),
dated as of February 23, 2022, is made and entered into by and among Clean Earth Acquisitions Corp., a Delaware corporation (the
 “Company”), Clean Earth Acquisitions Sponsor, LLC, a Delaware limited liability company (the “Sponsor”),
and the undersigned parties listed under “Holder” on the signature pages hereto (each such party, together with the Sponsor
and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 6.2 of this Agreement, a “Holder”
and collectively the “Holders”).


 


RECITALS


 


WHEREAS,
the Holders collectively currently own 7,666,667 shares of the Company’s Class B common stock, par value $0.0001 per share
(the “Class B Common Stock”);


 


WHEREAS,
the Class B Common Stock are convertible into the Company’s Class A common stock, par value $0.0001 per share (the “Common
Stock”), at the time of the initial Business Combination (as defined below) on a one-for-one basis, subject to adjustment,
on the terms and conditions provided in the Company’s amended and restated certificate of incorporation, as may be amended from
time to time;


 


WHEREAS,
on February 23, 2022, the Company and the Sponsor entered into that certain Private Placement Units Purchase Agreement, pursuant
to which the Sponsor agreed to purchase 800,000 units at a price of $10.00 per private placement unit (the “Private Placement
Units”), with each unit consisting of one share of Common Stock and one-half of one warrant to purchase Common Stock (the
 “Private Placement Warrants”), in a private placement transaction (or up to 890,000 Private Placement Units
if the over-allotment option in connection with the Company’s initial public offering is exercised in full) occurring simultaneously
with the closing of the Company’s initial public offering;


 


WHEREAS,
in order to finance the Company’s transaction costs in connection with an intended Business Combination, the Sponsor or certain
of the Company’s officers or directors may, but are not obligated to, loan the Company funds as the Company may require, of which
up to $1,500,000 of such loans may be convertible into an additional 150,000 Private Placement Units (the “Working Capital
Units”) at a price of $10.00 per Working Capital Unit at the option of the lender; and


 


WHEREAS,
the Company and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain registration
rights with respect to certain securities of the Company, as set forth in this Agreement.


 


NOW, THEREFORE,
in consideration of the mutual representations, covenants and agreements contained herein, and certain other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:


 


ARTICLE I 


DEFINITIONS


 


1.1. Definitions. The terms defined
in this Article I shall, for all purposes of this Agreement, have the respective meanings set forth below:


 


“Adverse Disclosure”
shall mean any public disclosure of material non-public information, which disclosure, in the good faith judgment of the principal executive
officer or principal financial officer of the Company, after consultation with counsel to the Company, (i) would be required to be
made in any Registration Statement or Prospectus in order for the applicable Registration Statement or Prospectus not to contain any untrue
statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the case of any prospectus
and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (ii) would not be required
to be made at such time if the Registration Statement were not being filed, and (iii) the Company has a bona fide business purpose
for not making such information public.


 








    


     


    

  


“Agreement” shall have the meaning given
in the Preamble.


 


“Board” shall mean the
Board of Directors of the Company.


 


“Business Combination”
shall mean any merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination
with one or more businesses, involving the Company.


 


“Commission” shall mean
the U.S. Securities and Exchange Commission.


 


“Common Stock” shall
have the meaning given in the Recitals hereto.


 


“Company” shall have
the meaning given in the Preamble.


 


“Demand Registration”
shall have the meaning given in subsection 2.1.1.


 


“Demanding Holder” shall
have the meaning given in subsection 2.1.1.


 


“Exchange Act” shall
mean the Securities Exchange Act of 1934, as it may be amended from time to time.


 


“Form S-1” shall
have the meaning given in subsection 2.1.1.


 


“Form S-3” shall
have the meaning given in subsection 2.3.1.


 


“Founder Shares” shall
mean the Class B Common Stock and shall be deemed to include the shares of Common Stock issuable upon conversion thereof.


 


“Founder Shares Lock-up Period”
shall mean, with respect to the Founder Shares, the period ending on the earlier of (A) one year after the completion of the Company’s
initial Business Combination and (B) subsequent to the Business Combination, (x) if the closing 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.


 


“Holders” shall have
the meaning given in the Preamble.


 


“Insider Letter” shall
mean that certain letter agreement, dated as of the date hereof, by and between the Company, the Sponsor and each of the Company’s
officers, directors and director nominees.


 


“Maximum Number of Securities”
shall have the meaning given in subsection 2.1.4.


 


“Misstatement” shall
mean an untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration Statement
or Prospectus, or necessary to make the statements in a Registration Statement or Prospectus (in the case of a Prospectus, in the light
of the circumstances under which they were made) not misleading.


 


“Nominee” is defined
in Section 6.1.


 


“Permitted Transferees”
shall mean any person or entity to whom a Holder of Registrable Securities is permitted to transfer such Registrable Securities prior
to the expiration of the Founder Shares Lock-up Period, Private Placement Lock-up Period or any other lock-up period, as the case may
be, under the Insider Letter, the Private Placement Unit Purchase Agreement, this Agreement and any other applicable agreement between
such Holder and the Company, and to any transferee thereafter.


 






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“Piggyback Registration”
shall have the meaning given in subsection 2.2.1.


 


“Private Placement Lock-up Period”
shall mean, with respect to Private Placement Units that are held by the initial purchasers of such Private Placement Units or their Permitted
Transferees, the Common Stock, the Private Placement Warrants and any of the Common Stock issued or issuable upon the exercise or conversion
of the Private Placement Warrants and that are held by the initial purchasers of the Private Placement Units or their Permitted Transferees,
the period ending 30 days after the completion of the Company’s initial Business Combination.


 


“Private Placement Warrants”
shall have the meaning given in the Recitals hereto.


 


“Private Placement Units”
shall have the meaning given in the Recitals hereto.


 


“Prospectus” shall mean
the prospectus included in any Registration Statement, as supplemented by any and all prospectus supplements and as amended by any and
all post-effective amendments and including all material incorporated by reference in such prospectus.


 


“Registrable Security”
shall mean (a) the Founder Shares (including any shares of Common Stock or other equivalent equity security issued or issuable upon
the conversion of any such Founder Shares or exercisable for Common Stock), (b) the Private Placement Units (including the Common
Stock, the Private Placement Warrants and any shares of the Common Stock issued or issuable upon the exercise of any such Private Placement
Warrants), (c) the Working Capital Units (including the Common Stock, the Private Placement Warrants contained in the Working Capital
Units, and any shares of the Common Stock issued or issuable upon the conversion of such warrants) (d) any outstanding shares of
the Common Stock or any other equity security (including the shares of the Common Stock issued or issuable upon the exercise of any other
equity security) of the Company held by a Holder as of the date of this Agreement, and (e) any other equity security of the Company
issued or issuable with respect to any such shares of the Common Stock by way of a stock dividend or stock split or in connection with
a combination of shares, recapitalization, merger, consolidation or reorganization; provided, however, that, as
to any particular Registrable Security, such securities shall cease to be Registrable Securities when: (i) 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; (ii) such securities shall have been otherwise
transferred, new certificates for such securities not bearing a legend restricting further transfer shall have been delivered by the Company
and subsequent public distribution of such securities shall not require registration under the Securities Act; (iii) such securities
shall have ceased to be outstanding; or (iv) such securities have been sold to, or through, a broker, dealer or underwriter in a
public distribution or other public securities transaction.


 


“Registration” shall
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.


 


“Registration Expenses”
shall mean the out-of-pocket expenses of a Registration, including, without limitation, the following:


 


(A) all registration and filing fees (including
fees with respect to filings required to be made with the Financial Industry Regulatory Authority, Inc.) and any securities exchange
on which the Common Stock is then listed;


 


(B) fees and expenses of compliance with
securities or blue sky laws (including reasonable fees and disbursements of counsel for the Underwriter(s) in connection with blue
sky qualifications of Registrable Securities);


 


(C) printing, messenger, telephone and delivery
expenses;


 


(D) reasonable fees and disbursements of
counsel for the Company;


 


(E) reasonable fees and disbursements of
all independent registered public accountants of the Company incurred specifically in connection with such Registration; and


 






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(F) reasonable fees and expenses of one (1) legal
counsel selected by the majority-in-interest of the Demanding Holders initiating a Demand Registration to be registered for offer and
sale in the applicable Registration or the Takedown Requesting Holder initiating an Underwritten Shelf Takedown.


  


“Registration Statement”
shall mean any registration statement that covers the Registrable Securities pursuant to the provisions of this Agreement, including the
Prospectus included in such registration statement, amendments (including post-effective amendments) and supplements to such registration
statement, and all exhibits to and all material incorporated by reference in such registration statement.


 


“Requesting Holder”
shall have the meaning given in subsection 2.1.1.


 


“Securities Act” shall
mean the Securities Act of 1933, as amended from time to time.


 


“Shelf” shall have the
meaning given in subsection 2.3.1.


 


“Sponsor” shall have
the meaning given in the Recitals hereto.


 


“Sponsor Director” means
an individual elected to the Board that has been nominated by the Sponsor pursuant to this Agreement.


 


“Subsequent Shelf Registration”
shall have the meaning given in subsection 2.3.2.


 


“Takedown Requesting Holder”
shall have the meaning given in subsection 2.3.3.


 


“Underwriter” shall
mean 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.


 


“Underwritten Registration”
or “Underwritten Offering” shall mean a Registration in which securities of the Company are sold to an Underwriter
in a firm commitment underwriting for distribution to the public.


 


“Underwritten Shelf Takedown”
shall have the meaning given in subsection 2.3.3.


 


“Working Capital Units”
shall have the meaning given in the Recitals hereto.


 


ARTICLE II 


REGISTRATIONS


 


2.1. Demand Registration.


 


2.1.1. Request for Registration. Subject
to the provisions of subsection 2.1.4 and Section 2.4 hereof, at any time and from time to time
on or after the date the Company consummates the Business Combination, the Holders of at least a majority in interest of the then-outstanding
number of Registrable Securities (the “Demanding Holders”) may make a written demand for Registration of all
or part of their Registrable Securities, which written demand shall describe the amount and type of securities to be included in such
Registration and the intended method(s) of distribution thereof (such written demand a “Demand Registration”).
The Company shall, within five (5) days of the Company’s receipt of the Demand Registration, notify, in writing, all other
Holders of Registrable Securities of such demand, and each Holder of Registrable Securities who thereafter wishes to include all or a
portion of such Holder’s Registrable Securities in a Registration pursuant to a Demand Registration (each such Holder that includes
all or a portion of such Holder’s Registrable Securities in such Registration, a “Requesting Holder”)
shall so notify the Company, in writing, within three (3) business days after the receipt by the Holder of the notice from the Company.
Upon receipt by the Company of any such written notification from a Requesting Holder(s) to the Company, such Requesting Holder(s) shall
be entitled to have their Registrable Securities included in a Registration pursuant to a Demand Registration and the Company shall effect,
as soon thereafter as practicable, but not more than forty five (45) days immediately after the Company’s receipt of the Demand
Registration, the Registration of all Registrable Securities requested by the Demanding Holders and Requesting Holders pursuant to such
Demand Registration. Under no circumstances shall the Company be obligated to effect more than an aggregate of two (2) Registrations
pursuant to a Demand Registration under this subsection 2.1.1 with respect to any or all Registrable Securities; provided, however,
that a Registration shall not be counted for such purposes unless a Form S-1 or any similar long-form registration statement that
may be available at such time (“Form S-1”) has become effective and all of the Registrable Securities requested
by the Requesting Holders to be registered on behalf of the Requesting Holders in such Form S-1 Registration have been sold, in accordance
with Section 3.1 of this Agreement; provided, further, that an Underwritten Shelf Takedown
shall not count as a Demand Registration.


 






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2.1.2. Effective Registration.
Notwithstanding the provisions of subsection 2.1.1 above or any other part of this Agreement, a Registration
pursuant to a Demand Registration shall not count as a Registration unless and until (i) the Registration Statement filed with
the Commission with respect to a Registration pursuant to a Demand Registration has been declared effective by the Commission and
(ii) the Company has complied with all of its obligations under this Agreement with respect
thereto; provided, further, that if, after such Registration Statement has been declared effective, an
offering of Registrable Securities in a Registration pursuant to a Demand Registration is subsequently interfered with by any stop
order or injunction of the Commission, federal or state court or any other governmental agency the Registration Statement with
respect to such Registration shall 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 initiating
such Demand Registration thereafter affirmatively elect to continue with such Registration and accordingly notify the Company in
writing, but in no event later than five (5) days, of such election; provided, further, that the
Company shall not be obligated or required to file another Registration Statement until the Registration Statement that has been
previously filed with respect to a Registration pursuant to a Demand Registration becomes effective or is subsequently
terminated.


 


2.1.3. Underwritten Offering. Subject
to the provisions of subsection 2.1.4 and Section 2.4 hereof, if a majority-in-interest of the
Demanding Holders so advise the Company as part of their Demand Registration that the offering of the Registrable Securities pursuant
to such Demand Registration shall be in the form of an Underwritten Offering, then the right of such Demanding Holder or Requesting Holder
(if any) to include its Registrable Securities in such Registration shall be conditioned upon such Holder’s participation in such
Underwritten Offering and the inclusion of such Holder’s Registrable Securities in such Underwritten Offering to the extent provided
herein. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this subsection
2.1.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten
Offering by the majority-in-interest of the Demanding Holders initiating the Demand Registration.


 


2.1.4. Reduction of Underwritten Offering.
If the managing Underwriter(s) in an Underwritten Registration pursuant to a Demand Registration, in good faith, advise the Company,
the Demanding Holders and the Requesting Holders (if any) in writing that the dollar amount or number of Registrable Securities that the
Demanding Holders and the Requesting Holders (if any) desire to sell, taken together with all other Common Stock or other equity securities
that the Company desires to sell and the Common Stock, if any, as to which a Registration has been requested pursuant to separate written
contractual piggy-back registration rights held by any other stockholders who desire to sell, exceeds the maximum dollar amount or maximum
number of equity securities that can be sold in the Underwritten 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 such
securities, as applicable, the “Maximum Number of Securities”), then the Company shall include in such Underwritten
Offering, as follows: (i) first, the Registrable Securities of the Demanding Holders and the Requesting Holders (if any) (pro rata
based on the respective number of Registrable Securities that each Demanding Holder and Requesting Holder (if any) has requested be included
in such Underwritten Registration and the aggregate number of Registrable Securities that the Demanding Holders and Requesting Holders
have requested be included in such Underwritten Registration (such proportion is referred to herein as “Pro Rata”))
that can be sold without exceeding the Maximum Number of Securities; (ii) second, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clause (i), the Common Stock or other equity securities that the Company desires to sell, which
can be sold without exceeding the Maximum Number of Securities; and (iii) third, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clauses (i) and (ii), the Common Stock or other equity securities of other persons or entities
that the Company is obligated to register in a Registration pursuant to separate written contractual arrangements with such persons and
that can be sold without exceeding the Maximum Number of Securities.


 






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2.1.5. Demand Registration Withdrawal.
A majority-in-interest of the Demanding Holders initiating a Demand Registration or a majority-in-interest of the Requesting Holders (if
any), pursuant to a Registration under subsection 2.1.1 shall have the right to withdraw from a Registration pursuant
to such Demand Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter(s) (if any)
of their intention to withdraw from such Registration prior to the effectiveness of the Registration Statement filed with the Commission
with respect to the Registration of their Registrable Securities pursuant to such Demand Registration. Notwithstanding anything to the
contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with a Registration
pursuant to a Demand Registration prior to its withdrawal under this subsection 2.1.5.


  


2.2. Piggyback Registration.


 


2.2.1. Piggyback 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, for its own account or for the account of stockholders of the Company (or by the Company and by
the stockholders of the Company including, without limitation, pursuant to Section 2.1 hereof), 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 stockholders, (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 give written notice of such proposed filing
to all of the Holders of Registrable Securities as soon as practicable but not less than seven (7) days before the anticipated filing
date of such Registration Statement, which notice shall (A) 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(s), if any, in such offering, and (B) offer
to all of the Holders of Registrable Securities the opportunity to register the sale of such number of Registrable Securities as such
Holders may request in writing within three (3) business days after receipt of such written notice (such Registration a “Piggyback
Registration”). The Company shall, in good faith, cause such Registrable Securities to be included in such Piggyback Registration
and shall use its best efforts to cause the managing Underwriter(s) of a proposed Underwritten Offering to permit the Registrable
Securities requested by the Holders pursuant to this subsection 2.2.1 to be included in a Piggyback Registration on the
same terms and conditions as any similar securities of the Company included in such Registration and to permit the sale or other disposition
of such Registrable Securities in accordance with the intended method(s) of distribution thereof. All such Holders proposing to distribute
their Registrable Securities through an Underwritten Offering under this subsection 2.2.1 shall enter into an underwriting
agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company. The notice periods set
forth in this subsection 2.2.1 shall not apply to an Underwritten Shelf Takedown conducted in accordance with subsection
2.3.3.


 


2.2.2. Reduction of Piggyback
Registration. If the managing Underwriter(s) in an Underwritten Registration that is to be a Piggyback Registration (other
than Underwritten Shelf Takedown), in good faith, advise the Company and the Holders of Registrable Securities participating in the
Piggyback Registration in writing that the dollar amount or number of the shares of Common Stock that the Company desires to sell,
taken together with (i) the Common Stock, if any, as to which Registration has been demanded pursuant to separate written
contractual arrangements with persons or entities other than the Holders of Registrable Securities hereunder, (ii) the
Registrable Securities as to which registration has been requested pursuant Section 2.2 hereof, and
(iii) the Common Stock, if any, as to which Registration has been requested pursuant to separate written contractual piggy-back
registration rights of other stockholders of the Company, exceeds the Maximum Number of Securities, then:


 


(a) If the Registration is undertaken for
the Company’s account, the Company shall include in any such Registration (A) first, the Common Stock or other equity securities
that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent
that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising
their rights to register their Registrable Securities pursuant to subsection 2.2.1, Pro Rata, which can be sold without exceeding
the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing
clauses (A) and (B), the Common Stock, if any, as to which Registration has been requested pursuant to written contractual piggy-back
registration rights of other stockholders of the Company, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth,
to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A), (B) and (C), the Common
Stock or other equity securities for the account of other persons or entities that the Company is obligated to register pursuant to separate
written contractual arrangements with such persons or entities, which can be sold without exceeding the Maximum Number of Securities;


 






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(b) If the Registration is pursuant to a
request by persons or entities other than the Holders of Registrable Securities, then the Company shall include in any such Registration
(A) first, the Common Stock or other equity securities, if any, of such requesting persons or entities, other than the Holders of
Registrable Securities, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the
Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their
rights to register their Registrable Securities pursuant to subsection 2.2.1, Pro Rata, which can be sold without exceeding
the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing
clauses (A) and (B), the Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding
the Maximum Number of Securities; and (D) fourth, to the extent that the Maximum Number of Securities has not been reached under
the foregoing clauses (A), (B) and (C), the Common Stock or other equity securities for the account of other persons or entities
that the Company is obligated to register pursuant to separate written contractual arrangements with such persons or entities, which can
be sold without exceeding the Maximum Number of Securities.


 


2.2.3. Piggyback Registration Withdrawal.
Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback Registration for any or no reason whatsoever upon
written notification to the Company and the Underwriter(s) (if any) of his, her or its intention to withdraw from such Piggyback
Registration prior to the effectiveness of the Registration Statement filed with the Commission with respect to such Piggyback Registration.
The Company (whether on its own good faith determination or as the result of a request for withdrawal by persons pursuant to separate
written contractual obligations) may withdraw a Registration Statement filed with the Commission in connection with a Piggyback Registration
at any time prior to the effectiveness of such Registration Statement. Notwithstanding anything to the contrary in this Agreement, the
Company shall be responsible for the Registration Expenses incurred in connection with the Piggyback Registration prior to its withdrawal
under this subsection 2.2.3.


 


2.2.4. Unlimited Piggyback Registration
Rights. For purposes of clarity, any Registration effected pursuant to Section 2.2 hereof shall not be counted
as a Registration pursuant to a Demand Registration effected under Section 2.1 hereof.


 


2.3. Shelf Registrations.


 


2.3.1. The Holders of Registrable Securities may
at any time, and from time to time, request in writing that the Company, pursuant to Rule 415 under the Securities Act (or any successor
rule promulgated thereafter by the Commission), register the resale of any or all of their Registrable Securities on Form S-3
or similar short form registration statement that may be available at such time (“Form S-3”), or if the
Company is ineligible to use Form S-3, on Form S-1; a registration statement filed pursuant to this subsection 2.3.1
(a “Shelf”) shall provide for the resale of the Registrable Securities included therein pursuant to any method
or combination of methods legally available to, and requested by, any Holder. Within three (3) days of the Company’s receipt
of a written request from a Holder or Holders of Registrable Securities for a Registration on a Shelf, the Company shall promptly give
written notice of the proposed Registration to all other Holders of Registrable Securities, and each Holder of Registrable Securities
who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in such Registration shall so notify the
Company, in writing, within three (3) business days after the receipt by the Holder of the notice from the Company. As soon as practicable
thereafter, but not more than ten (10) days after the Company’s initial receipt of such written request for a Registration
on a Shelf, the Company shall register all or such portion of such Holder’s Registrable Securities as are specified in such written
request, together with all or such portion of Registrable Securities of any other Holder or Holders joining in such request as are specified
in the written notification given by such Holder or Holders; provided, however, that the Company shall not be obligated to effect any
such Registration pursuant to this subsection 2.3.1 if the Holders of Registrable Securities, together with the Holders
of any other equity securities of the Company entitled to inclusion in such Registration, propose to sell the Registrable Securities and
such other equity securities (if any) at any aggregate price to the public of less than $10,000,000. The Company shall maintain each Shelf
in accordance with the terms hereof, and shall prepare and file with the SEC such amendments, including post-effective amendments, and
supplements as may be necessary to keep such Shelf continuously effective, available for use and in compliance with the provisions of
the Securities Act until such time as there are no longer any Registrable Securities included on such Shelf. In the event the Company
files a Shelf on Form S-1, the Company shall use its commercially reasonable efforts to convert the Form S-1 to a Form S-3
as soon as practicable after the Company is eligible to use Form S-3.


 






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2.3.2. If any Shelf ceases to be effective
under the Securities Act for any reason at any time while Registrable Securities included thereon are still outstanding, the Company
shall use its commercially reasonable efforts to as promptly as is reasonably practicable cause such Shelf to again become effective
under the Securities Act (including obtaining the prompt withdrawal of any order suspending the effectiveness of such Shelf), and
shall use its commercially reasonable efforts to as promptly as is reasonably practicable amend such Shelf in a manner reasonably
expected to result in the withdrawal of any order suspending the effectiveness of such Shelf or file an additional registration
statement (a “Subsequent Shelf Registration”) registering the resale of all Registrable Securities
including on such Shelf, and pursuant to any method or combination of methods legally available to, and requested by, any Holder. If
a Subsequent Shelf Registration is filed, the Company shall use its commercially reasonable efforts to (i) cause such
Subsequent Shelf Registration to become effective under the Securities Act as promptly as is reasonably practicable after the filing
thereof and (ii) keep such Subsequent Shelf Registration continuously effective, available for use and in compliance with the
provisions of the Securities Act until such time as there are no longer any Registrable Securities included thereon. Any such
Subsequent Shelf Registration shall be on Form S-3 to the extent that the Company is eligible to use such form. Otherwise, such
Subsequent Shelf Registration shall be on another appropriate form. In the event that any Holder holds Registrable Securities that
are not registered for resale on a delayed or continuous basis, the Company, upon request of a Holder shall promptly use its
commercially reasonable efforts to cause the resale of such Registrable Securities to be covered by either, at the Company’s
option, a Shelf (including by means of a post-effective amendment) or a Subsequent Shelf Registration and cause the same to become
effective as soon as practicable after such filing and such Shelf or Subsequent Shelf Registration shall be subject to the terms
hereof; provided, however, the Company shall only be required to cause such Registrable Securities to be so
covered once annually after inquiry of the Holders.


 


2.3.3. At any time and from time to time after
a Shelf has been declared effective by the Commission, the Sponsor may request to sell all or any portion of its Registrable Securities
in an underwritten offering that is registered pursuant to the Shelf (each, an “Underwritten Shelf Takedown”); provided that
the Company shall only be obligated to effect an Underwritten Shelf Takedown if such offering shall include securities with a total offering
price (including piggyback securities and before deduction of underwriting discounts) reasonably expected to exceed, in the aggregate,
$10,000,000. All requests for Underwritten Shelf Takedowns shall be made by giving written notice to the Company at least 48 hours prior
to the public announcement of such Underwritten Shelf Takedown, which shall specify the approximate number of Registrable Securities proposed
to be sold in the Underwritten Shelf Takedown and the expected price range (net of underwriting discounts and commissions) of such Underwritten
Shelf Takedown. The Company shall include in any Underwritten Shelf Takedown the securities requested to be included by any holder (each
a “Takedown Requesting Holder”) at least 24 hours prior to the public announcement of such Underwritten Shelf
Takedown pursuant to written contractual piggyback registration rights of such holder (including to those set forth herein). The Sponsor
shall have the right to select the underwriter(s) for such offering (which shall consist of one or more reputable nationally recognized
investment banks), subject to the Company’s prior approval which shall not be unreasonably withheld, conditioned or delayed. For
purposes of clarity, any Registration effected pursuant to this subsection 2.3.3 shall not be counted as a Registration
pursuant to a Demand Registration effected under Section 2.1 hereof.


 


2.3.4. If the managing Underwriter(s) in
an Underwritten Shelf Takedown, in good faith, advises the Company, the Sponsor and the Takedown Requesting Holders (if any) in writing
that the dollar amount or number of Registrable Securities that the Sponsor and the Takedown Requesting Holders (if any) desire to sell,
taken together with all other Common Stock or other equity securities that the Company desires to sell, exceeds the Maximum Number of
Securities, then the Company shall include in such Underwritten Shelf Takedown, as follows: (i) first, the Registrable Securities
of the Sponsor that can be sold without exceeding the Maximum Number of Securities; (ii) second, to the extent that the Maximum Number
of Securities has not been reached under the foregoing clause (i), the Common Stock or other equity securities that the Company desires
to sell, which can be sold without exceeding the Maximum Number of Securities; and (iii) third, to the extent that the Maximum Number
of Securities has not been reached under the foregoing clauses (i) and (ii), the Common Stock or other equity securities of the Takedown
Requesting Holders, if any, that can be sold without exceeding the Maximum Number of Securities, determined Pro Rata based on the respective
number of Registrable Securities that each Takedown Requesting Holder has so requested to be included in such Underwritten Shelf Takedown.


 






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2.3.5. The Sponsor shall have the right to withdraw
from an Underwritten Shelf Takedown for any or no reason whatsoever upon written notification to the Company and the Underwriter(s) (if
any) of its intention to withdraw from such Underwritten Shelf Takedown prior to the public announcement of such Underwritten Shelf Takedown.
Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in
connection with an Underwritten Shelf Takedown prior to a withdrawal under this subsection 2.3.5.


 


2.4. Restrictions on Registration Rights.
If (A) during the period starting with the date sixty (60) days prior to the Company’s good faith estimate of the date of the
filing of, and ending on a date one hundred and twenty (120) days after the effective date of, a Company initiated Registration and provided
that the Company has delivered written notice to the Holders prior to receipt of a Demand Registration pursuant to subsection
2.1.1 and it continues to actively employ, in good faith, all reasonable efforts to cause the applicable Registration Statement
to become effective; (B) the Holders have requested an Underwritten Registration and the Company and the Holders are unable to obtain
the commitment of Underwriter(s) to firmly underwrite the offer; or (C) in the good faith judgment of the Board such Registration
would be seriously detrimental to the Company and the Board concludes as a result that it is essential to defer the filing of such Registration
Statement at such time, then in each case the Company shall furnish to such Holders a certificate signed by the Chairman of the Board
stating that in the good faith judgment of the Board it would be seriously detrimental to the Company for such Registration Statement
to be filed in the near future and that it is therefore essential to defer the filing of such Registration Statement. In such event, the
Company shall have the right to defer such filing for a period of not more than thirty (30) days; provided, however, that the Company
shall not defer its obligation in this manner more than once in any 12-month period. Notwithstanding anything to the contrary contained
in this Agreement, no Registration shall be effected or permitted and no Registration Statement shall become effective, with respect to
any Registrable Securities held by any Holder, until after the expiration of the Founder Shares Lock-Up Period or the Private Placement
Lock-Up Period, as the case may be.


 


ARTICLE III 


COMPANY PROCEDURES


 


3.1. General Procedures. If at any
time on or after the date the Company consummates a Business Combination the Company is required to effect the Registration of Registrable
Securities, the Company shall use its best efforts to effect such Registration to permit the sale of such Registrable Securities in accordance
with the intended plan of distribution thereof, and pursuant thereto the Company shall, as expeditiously as possible:


 


3.1.1. prepare and file with the Commission as
soon as practicable a Registration Statement with respect to such Registrable Securities and use its reasonable best efforts to cause
such Registration Statement to become effective and remain effective until all Registrable Securities covered by such Registration Statement
have been sold;


 


3.1.2. prepare and file with the Commission such
amendments and post-effective amendments to the Registration Statement, and such supplements to the Prospectus, as may be requested by
the Holders or any Underwriter(s) of Registrable Securities or as may be required by the rules, regulations or instructions applicable
to the registration form used by the Company or by the Securities Act or rules and regulations thereunder to keep the Registration
Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance with the intended plan
of distribution set forth in such Registration Statement or supplement to the Prospectus;


 


3.1.3. prior to filing a Registration Statement
or Prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriter(s), if any, and 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 Underwriter(s) and the Holders of Registrable Securities included in such Registration or the legal counsel for
any such Holders may request in order to facilitate the disposition of the Registrable Securities owned by such Holders;


 






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3.1.4. prior to any public offering of Registrable
Securities, 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 or take any action
to which it would be subject to general service of process or taxation in any such jurisdiction where it is not then otherwise so subject;


  


3.1.5. cause all such Registrable Securities to
be listed on each securities exchange or automated quotation system on which similar securities issued by the Company are then listed;


 


3.1.6. provide a transfer agent or warrant agent,
as applicable, and registrar for all such Registrable Securities no later than the effective date of such Registration Statement;


 


3.1.7. advise each seller of such Registrable
Securities, promptly after it shall receive notice or obtain knowledge thereof, of the issuance of any stop order by the Commission suspending
the effectiveness of such Registration Statement or the initiation or threatening of any proceeding for such purpose and promptly use
its reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop order should be issued;


 


3.1.8. at least five (5) days prior to the
filing of any Registration Statement or Prospectus or any amendment or supplement to such Registration Statement or Prospectus (other
than by way of a document incorporated by reference) furnish a copy thereof to each seller of such Registrable Securities or its counsel;


 


3.1.9. notify the Holders at any time when a Prospectus
relating to such Registration Statement is required to be delivered under the Securities Act, of the happening of any event as a result
of which the Prospectus included in such Registration Statement, as then in effect, includes a Misstatement, and then to correct such
Misstatement as set forth in Section 3.4 hereof;


 


3.1.10. permit a representative of the Holders,
the Underwriter(s), if any, and any attorney or accountant retained by such Holders or Underwriter(s) to participate, at each such
person’s own expense, in the preparation of the Registration Statement, and cause the Company’s officers, directors and employees
to supply all information reasonably requested by any such representative, Underwriter(s), attorney or accountant in connection with the
Registration; provided, however, that such representatives or Underwriter(s) enter into a confidentiality
agreement, in form and substance reasonably satisfactory to the Company, prior to the release or disclosure of any such information;


 


3.1.11. obtain a “cold comfort” letter
from the Company’s independent registered public accountants in the event of an Underwritten Registration, in customary form and
covering such matters of the type customarily covered by “cold comfort” letters as the managing Underwriter(s) may reasonably
request, and reasonably satisfactory to a majority-in-interest of the participating Holders;


 


3.1.12. on the date the Registrable Securities
are delivered for sale pursuant to such Registration, obtain an opinion, dated such date, of counsel representing the Company for the
purposes of such Registration, addressed to the Holders, the placement agent or sales agent, if any, and the Underwriter(s), if any, covering
such legal matters with respect to the Registration in respect of which such opinion is being given as the Holders, placement agent, sales
agent, or Underwriter(s) may reasonably request and as are customarily included in such opinions and negative assurance letters,
and reasonably satisfactory to a majority in interest of the participating Holders;


 


3.1.13. in the event of any Underwritten Offering,
enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing Underwriter(s) of
such offering;


 


3.1.14. make available to its security holders,
as soon as reasonably practicable, an earnings statement covering the period of at least twelve (12) months beginning with the first day
of the Company’s first full calendar quarter after the effective date of the Registration Statement which satisfies the provisions
of Section 11(a) of the Securities Act and Rule 158 thereunder (or any successor rule promulgated thereafter by the
Commission);


 






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3.1.15. if the Registration involves the Registration
of Registrable Securities involving gross proceeds in excess of $50,000,000, 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(s) in
any Underwritten Offering; and


 


3.1.16. otherwise, in good faith, cooperate reasonably
with, and take such customary actions as may reasonably be requested by the Holders, in connection with such Registration.


 


3.2. Registration Expenses. The Registration
Expenses of all Registrations shall be borne by the Company. It is acknowledged by the Holders that the Holders shall bear all incremental
selling expenses relating to the sale of Registrable Securities, such as Underwriter(s)’ commissions and discounts, brokerage fees,
Underwriter marketing costs and, other than as set forth in the definition of “Registration Expenses,” all reasonable fees
and expenses of any legal counsel representing the Holders.


 


3.3. Requirements for Participation in
Underwritten Offerings. No person may participate in any Underwritten Offering for equity securities of the Company pursuant to a
Registration initiated by the Company hereunder unless such person (i) agrees to sell such person’s securities on the basis
provided in any underwriting arrangements approved by the Company and (ii) completes and executes all customary questionnaires, powers
of attorney, indemnities, lock-up agreements, underwriting agreements and other customary documents as may be reasonably required under
the terms of such underwriting arrangements.


 


3.4. Suspension of Sales; Adverse Disclosure.
Upon receipt of written notice from the Company that a Registration Statement or Prospectus contains a Misstatement, each of the Holders
shall forthwith discontinue disposition of Registrable Securities until it has received copies of a supplemented or amended Prospectus
correcting the Misstatement (it being understood that the Company hereby covenants to prepare and file such supplement or amendment as
soon as practicable after the time of such notice), or until it is advised in writing by the Company that the use of the Prospectus may
be resumed. If the filing, initial effectiveness or continued use of a Registration Statement in respect of any Registration at any time
would require the Company to make an Adverse Disclosure or would require the inclusion in such Registration Statement of financial statements
that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written notice
of such action to the Holders, delay the filing or initial effectiveness of, or suspend use of, such Registration Statement for the shortest
period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be necessary for such purpose.
In the event the Company exercises its rights under the preceding sentence, the Holders agree to suspend, immediately upon their receipt
of the notice referred to above, their use of the Prospectus relating to any Registration in connection with any sale or offer to sell
Registrable Securities. The Company shall immediately notify the Holders of the expiration of any period during which it exercised its
rights under this Section 3.4.


 


3.5. Reporting Obligations. As long
as any Holder shall own Registrable Securities, the Company, at all times while it shall be a reporting company under the Exchange Act,
covenants to file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to
be filed by the Company after the date hereof pursuant to Sections 13(a) or 15(d) of the Exchange Act and to promptly furnish
the Holders with true and complete copies of all such filings. The Company further covenants that it shall take such further action as
any Holder may reasonably request, all to the extent required from time to time to enable such Holder to sell shares of the Common Stock
held by such Holder without registration under the Securities Act within the limitation of the exemptions provided by Rule 144 promulgated
under the Securities Act (or any successor rule promulgated thereafter by the Commission, to the extent that such rule or such
successor rule is available to the Company), including providing any legal opinions. Upon the request of any Holder, the Company
shall deliver to such Holder a written certification of a duly authorized officer as to whether it has complied with such requirements.


 






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ARTICLE IV 


INDEMNIFICATION AND CONTRIBUTION


 


4.1. Indemnification.


 


4.1.1. The Company agrees to indemnify, to the
extent permitted by law, each Holder of Registrable Securities, its officers and directors and each person who controls such Holder (within
the meaning of the Securities Act) against all losses, claims, damages, liabilities and expenses (including attorneys’ fees) caused
by any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus
or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated therein or
necessary to make the statements therein not misleading, except insofar as the same are caused by or contained in any information furnished
in writing to the Company by such Holder expressly for use therein. The Company shall indemnify the Underwriter(s), their officers and
directors and each person who controls such Underwriter(s) (within the meaning of the Securities Act) to the same extent as provided
in the foregoing with respect to the indemnification of the Holder.


  


4.1.2. In connection with any Registration
Statement in which a Holder of Registrable Securities is participating, such Holder shall furnish to the Company in writing such
information and affidavits as the Company reasonably requests for use in connection with any such Registration Statement or
Prospectus and, to the extent permitted by law, shall indemnify the Company, its directors and officers and agents and each person
who controls the Company (within the meaning of the Securities Act) against any losses, claims, damages, liabilities and expenses
(including without limitation reasonable attorneys’ fees) resulting from any untrue statement of material fact contained in
the Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission of a
material fact required to be stated therein or necessary to make the statements therein not misleading, but only to the extent that
such untrue statement or omission is contained in any information or affidavit so furnished in writing by such Holder expressly for
use therein; provided, however, that the obligation to indemnify shall be several, not joint and several,
among such Holders of Registrable Securities, and the liability of each such Holder of Registrable Securities shall be in proportion
to and limited to the net proceeds received by such Holder from the sale of Registrable Securities pursuant to such Registration
Statement. The Holders of Registrable Securities shall indemnify the Underwriter(s), their officers, directors and each person who
controls such Underwriter(s) (within the meaning of the Securities Act) to the same extent as provided in the foregoing with
respect to indemnification of the Company.


 


4.1.3. Any person entitled to indemnification
herein shall (i) give prompt written notice to the indemnifying party of any claim with respect to which it seeks indemnification
(provided that the failure to give prompt notice shall not impair any person’s right to indemnification hereunder to the extent
such failure has not materially prejudiced the indemnifying party) and (ii) unless in such indemnified party’s reasonable judgment
a conflict of interest between such indemnified and indemnifying parties may exist with respect to such claim, permit such indemnifying
party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party. If such defense is assumed, the
indemnifying party shall not be subject to any liability for any settlement made by the indemnified party without its consent (but such
consent shall not be unreasonably withheld). An indemnifying party who is not entitled to, or elects not to, assume the defense of a claim
shall not be obligated to pay the fees and expenses of more than one counsel for all parties indemnified by such indemnifying party with
respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of interest may exist between such indemnified
party and any other of such indemnified parties with respect to such claim. No indemnifying party shall, without the consent of the indemnified
party, consent to the entry of any judgment or enter into any settlement which cannot be settled in all respects by the payment of money
(and such money is so paid by the indemnifying party pursuant to the terms of such settlement) or which settlement does not include as
an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect
to such claim or litigation.


 


4.1.4. The indemnification provided for under
this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of the indemnified party or
any officer, director or controlling person of such indemnified party and shall survive the transfer of securities. The Company and each
Holder of Registrable Securities participating in an offering also agrees to make such provisions as are reasonably requested by any indemnified
party for contribution to such party in the event the Company’s or such Holder’s indemnification is unavailable for any reason.


 


4.1.5. If the indemnification provided under Section 4.1 hereof
from the indemnifying party is unavailable or insufficient to hold harmless an indemnified party in respect of any losses, claims, damages,
liabilities and expenses referred to herein, then the indemnifying party, in lieu of indemnifying the indemnified party, shall contribute
to the amount paid or payable by the indemnified party as a result of such losses, claims, damages, liabilities and expenses in such proportion
as is appropriate to reflect the relative fault of the indemnifying party and the indemnified party, as well as any other relevant equitable
considerations. The relative fault of the indemnifying party and indemnified party shall be determined by reference to, among other things,
whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission to
state a material fact, was made by, or relates to information supplied by, such indemnifying party or indemnified party, and the indemnifying
party’s and indemnified party’s relative intent, knowledge, access to information and opportunity to correct or prevent such
action; provided, however, that the liability of any Holder under this subsection 4.1.5 shall
be limited to the amount of the net proceeds received by such Holder in such offering giving rise to such liability. The amount paid or
payable by a party as a result of the losses or other liabilities referred to above shall be deemed to include, subject to the limitations
set forth in subsections 4.1.1, 4.1.2 and 4.1.3 above, any legal or other fees, charges
or expenses reasonably incurred by such party in connection with any investigation or proceeding. The parties hereto agree that it would
not be just and equitable if contribution pursuant to this subsection 4.1.5 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 this subsection
4.1.5. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall
be entitled to contribution pursuant to this subsection 4.1.5 from any person who was not guilty of such fraudulent misrepresentation.


 






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ARTICLE V 


MISCELLANEOUS


 


5.1. Notices. Any notice or communication
under this Agreement must be in writing and given by (i) deposit in the United States mail, addressed to the party to be notified,
postage prepaid and registered or certified with return receipt requested, (ii) delivery in person or by courier service providing
evidence of delivery, or (iii) transmission by hand delivery, electronic mail, telecopy, telegram or facsimile. Each notice or communication
that is mailed, delivered, or transmitted in the manner described above shall be deemed sufficiently given, served, sent, and received,
in the case of mailed notices, on the third business day following the date on which it is mailed and, in the case of notices delivered
by courier service, hand delivery, electronic mail, telecopy, telegram or facsimile, at such time as it is delivered to the addressee
(with the delivery receipt or the affidavit of messenger) or at such time as delivery is refused by the addressee upon presentation. Any
notice or communication under this Agreement must be addressed, if to the Company, to: Clean Earth Acquisitions Corp., Attention: Aaron
Ratner, 12600 Hill Country Blvd, Building R, Suite 275, Bee Cave, Texas 78738, with a copy to Proskauer Rose LLP, Attention: Will
Chuchawat, 2029 Century Park East, Suite 2400, Los Angeles, CA 90067, and, if to any Holder, at such Holder’s address or facsimile
number as set forth in the Company’s books and records. Any party may change its address for notice at any time and from time to
time by written notice to the other parties hereto, and such change of address shall become effective thirty (30) days after delivery
of such notice as provided in this Section 5.1.


 


5.2. Assignment; No Third Party Beneficiaries.


 


5.2.1. 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.


 


5.2.2. Prior to the expiration of the Founder
Shares Lock-up Period or the Private Placement Lock-up Period, as the case may be, no Holder may assign or delegate such Holder’s
rights, duties or obligations under this Agreement, in whole or in part, except in connection with a transfer of Registrable Securities
by such Holder to a Permitted Transferee.


 


5.2.3. This Agreement and the provisions hereof
shall be binding upon and shall inure to the benefit of each of the parties and its successors and the permitted assigns of the Holders,
which shall include Permitted Transferees.


 


5.2.4. This Agreement shall not confer any rights
or benefits on any persons that are not parties hereto, other than as expressly set forth in this Agreement and Section 5.2 hereof.


 


5.2.5. No assignment by any party hereto of such
party’s rights, duties and obligations hereunder shall be binding upon or obligate the Company unless and until the Company shall
have received (i) written notice of such assignment as provided in Section 5.1 hereof and (ii) the written
agreement of the assignee, in a form reasonably satisfactory to the Company, to be bound by the terms and provisions of this Agreement
(which may be accomplished by an addendum or certificate of joinder to this Agreement). Any transfer or assignment made other than as
provided in this Section 5.2 shall be null and void.


 






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5.3. 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.


 


5.4. Counterparts. This Agreement
may be executed in multiple counterparts (including facsimile or PDF counterparts), each of which shall be deemed an original, and all
of which together shall constitute the same instrument, but only one of which need be produced. Signatures to this Agreement transmitted
via facsimile or e-mail shall be valid and effective to bind the party so signing (including any electronic signature covered by the U.S.
federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or other applicable law, e.g.,
www.docusign.com).


 


5.5. 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.


 


5.5. Governing Law; Venue. NOTWITHSTANDING
THE PLACE WHERE THIS AGREEMENT MAY BE EXECUTED BY ANY OF THE PARTIES HERETO, THE PARTIES EXPRESSLY AGREE THAT THIS AGREEMENT SHALL
BE GOVERNED BY AND CONSTRUED UNDER THE LAWS OF THE STATE OF NEW YORK AS APPLIED TO AGREEMENTS AMONG NEW YORK RESIDENTS ENTERED INTO AND
TO BE PERFORMED ENTIRELY WITHIN NEW YORK, WITHOUT REGARD TO THE CONFLICT OF LAW PROVISIONS OF SUCH JURISDICTION.


 


5.7. 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 SPONSOR IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT HEREOF.


 


5.8. Amendments and Modifications.
Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities at the time in
question, compliance with any of the provisions, covenants and conditions set forth in this Agreement may be waived, or any of such provisions,
covenants or conditions may be amended or modified; provided, however, that notwithstanding the foregoing, any amendment hereto or waiver
hereof that adversely affects one Holder, solely in its capacity as a holder of the shares of capital stock of the Company, in a manner
that is materially different from the other Holders (in such capacity) shall require the consent of the Holder so affected. No course
of dealing between any Holder or the Company and any other party hereto or any failure or delay on the part of a Holder or the Company
in exercising any rights or remedies under this Agreement shall operate as a waiver of any rights or remedies of any Holder or the Company.
No single or partial exercise of any rights or remedies under this Agreement by a party shall operate as a waiver or preclude the exercise
of any other rights or remedies hereunder or thereunder by such party.


 


5.9. 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.


 


5.10. 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.


 






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5.11. 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 Holders
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.


 


5.12. Other Registration Rights.
The Company represents and warrants that no person, other than a Holder of Registrable Securities, has any right to require the
Company to register any securities of the Company for sale or to include such securities of the Company in any Registration filed by
the Company for the sale of securities for its own account or for the account of any other person. Further, the Company represents
and warrants that this Agreement supersedes any other registration rights agreement or agreement with similar terms and conditions
and in the event of a conflict between any such agreement or agreements and this Agreement, the terms of this Agreement shall
prevail.


 


5.13. Term. This Agreement shall terminate
upon the earlier of (i) the tenth anniversary of the date of this Agreement and (ii) the date as of which no Registrable Securities
remain outstanding. The provisions of Section 3.5 and Article IV shall survive any
termination.


 


[SIGNATURE PAGES FOLLOW]


 






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IN
WITNESS WHEREOF, the undersigned have caused this Agreement to be executed as of the date first written above.


 


	 	COMPANY:
	 	 
	 	CLEAN EARTH ACQUISITIONS CORP.
	 	   	 
	 	By:	/s/
Aaron T. Ratner 
	 	Name:	Aaron Ratner
	 	Title:	Chief Executive Officer
	 	 
	 	HOLDERS:
	 	 
	 	CLEAN EARTH ACQUISITIONS SPONSOR, LLC
	 	   	 
	 	By:	/s/
Alex Greystoke
	 	Name:	Alex Greystoke
	 	Title:	Managing Member



 


[Signature Page to Registration Rights
Agreement]


 






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