Document:

Exhibit 4.2

 

NUMBER

C-

SHARES

 

SEE REVERSE FOR CERTAIN DEFINITIONS

CUSIP                

INTEGRATED ENERGY
TRANSITION ACQUISITION CORP. 

 

INCORPORATED UNDER
THE LAWS OF THE STATE OF DELAWARE

CLASS A COMMON STOCK

 

THIS CERTIFIES
THAT                     is the owner of                     fully paid and non-assessable shares of Class A common stock, par value $0.0001 per share (the “Common
Stock”), of Integrated Energy Transition Acquisition Corp., a Delaware corporation (the “Company”),
transferable on the books of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed.

 

This certificate is not valid unless countersigned by the Transfer
Agent and registered by the Registrar of the Company.

 

Witness the facsimile signature of a duly authorized signatory
of the Company.

 

	Authorized Signatory	 	Transfer Agent

 

     

     

    

 

INTEGRATED ENERGY
TRANSITION ACQUISITION CORP.

 

The Company
will furnish without charge to each stockholder who so requests, a statement of the powers, designations, preferences and relative,
participating, optional or other special rights of each class of equity or series thereof of the Company and the qualifications,
limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued
and shall be held subject to all the provisions of the Company’s amended and restated certificate of incorporation and all
amendments thereto and resolutions of the Board of Directors providing for the issue of securities (copies of which may be obtained
from the secretary of the Company), to all of which the holder of this certificate by acceptance hereof assents.

 

The following
abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out
in full according to applicable laws or regulations:

 

	TEN COM	—as tenants in common	UNIF GIFT MIN ACT	—                                 Custodian	
	TEN ENT	—as tenants by the entireties	 	(Cust)	(Minor)
	 	 	 	 	 
	JT TEN	—as joint tenants with right of survivorship and not

 as tenants in common

 	under Uniform Gifts to Minors
Act	 

 

(State)

 

Additional abbreviations
may also be used though not in the above list.

 

For value received,                       hereby sells,
assigns and transfers unto

 

(PLEASE INSERT SOCIAL
SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S))

 

(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE,
OF ASSIGNEE(S))

 

 shares of
Common Stock represented by the within Certificate, and hereby irrevocably constitutes and appoints

 

Attorney to transfer the said shares of Common Stock
on the books of the within named Company with full power of substitution in the premises.

 

Dated:

 

	 	Notice: The signature(s) to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

 

     

     

    

 

Signature(s) Guaranteed:

	 	 

 

	
        THE
SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT
UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER THE SECURITIES
EXCHANGE ACT OF 1934, AS AMENDED (OR ANY SUCCESSOR RULE).
	 

 

In each case, as more fully described in the Company’s preliminary prospectus dated [    ], 2021,
or any further amendments, revisions or changes to such prospectus made and released by the Company after such date, the holder(s)
of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust account established in
connection with the Company’s initial public offering only in the event that (i) the Company redeems the shares of Common
Stock sold in its initial public offering and liquidates because it does not consummate an initial business combination within
the period of time set forth in the Company’s amended and restated certificate of incorporation, as the same may be amended
from time to time (the “Charter”), (ii) the Company redeems the shares of Common Stock sold in its initial public
offering properly submitted in connection with a stockholder vote to approve an amendment to the Charter to modify the substance
or timing of the Company’s obligation to redeem 100% of the Common Stock if it does not consummate an initial business combination
within the period of time set forth in the Charter or with respect to any other material provisions relating to stockholders’
rights or pre- initial business combination activity, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective
shares of Common Stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder
approval of the proposed initial business combination) setting forth the details of a proposed initial business combination. In
no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust account.Exhibit 4.3

 

Form of Warrant Certificate
[FACE]

Number

 

Warrants

 

THIS WARRANT SHALL BE
VOID IF NOT EXERCISED PRIOR TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR IN THE WARRANT AGREEMENT DESCRIBED BELOW

 

INTEGRATED ENERGY
TRANSITION ACQUISITION CORP.

 

Incorporated Under
the Laws of the State of Delaware

 

CUSIP          

 

Warrant Certificate

 

This
Warrant Certificate certifies that                   , or registered assigns, is the registered holder of warrant(s) evidenced
hereby (the “Warrants” and each, a “Warrant”) to purchase shares of Class A
common stock,

 

$0.0001 par value per share
(the “Class A Common Stock”), of Integrated Energy Transition Acquisition Corp., a Delaware corporation
(the “Company”). Each whole Warrant entitles the holder, upon exercise during the period set forth in
the Warrant Agreement referred to below, to receive from the Company that number of fully paid and non- assessable shares of Class
A Common Stock as set forth below, at the exercise price (the “Warrant Price”) as determined pursuant
to the Warrant Agreement, payable in lawful money (or through “cashless exercise” as provided for in
the Warrant Agreement) of the United States of America upon surrender of this Warrant Certificate and payment of the Warrant Price
at the office or agency of the Warrant Agent referred to below, subject to the conditions set forth herein and in the Warrant Agreement.
Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement.

 

Each whole
Warrant is initially exercisable for one fully paid and non-assessable share of Class A Common Stock. No fractional shares will
be issued upon exercise of any Warrant. If, upon the exercise of Warrants, a holder would be entitled to receive a fractional interest
in a share of Class A Common Stock, the Company will, upon exercise, round down to the nearest whole number the number of shares
of Common Stock to be issued to the Warrant holder. The number of shares of Common Stock issuable upon exercise of the Warrants
is subject to adjustment upon the occurrence of certain events as set forth in the Warrant Agreement.

 

The initial
Warrant Price per share of Class A Common Stock for any Warrant is equal to $11.50 per share. The Warrant Price is subject to adjustment
upon the occurrence of certain events as set forth in the Warrant Agreement.

 

Subject
to the conditions set forth in the Warrant Agreement, the Warrants may be exercised only during the Exercise Period and to the
extent not exercised by the end of such Exercise Period, such Warrants shall become void. The Warrants may be redeemed, subject
to certain conditions, as set forth in the Warrant Agreement.

 

Reference
is hereby made to the further provisions of this Warrant Certificate set forth on the reverse hereof and such further provisions
shall for all purposes have the same effect as though fully set forth at this place.

 

This Warrant
Certificate shall not be valid unless countersigned by the Warrant Agent, as such term is used in the Warrant Agreement.

 

This Warrant
Certificate shall be governed by and construed in accordance with the internal laws of the State of New York.

 

     

     

    

 

	 	INTEGRATED ENERGY TRANSITION
    ACQUISITION CORP.
	 	 
	 	By:	 
	 	Name:	          
	 	Title:	 

 

 

	 	CONTINENTAL STOCK TRANSFER
    & TRUST COMPANY, as Warrant Agent
	 	 
	 	By:	 
	 	Name:	            
	 	Title:	 

 

     

     

    

 

[Form of Warrant Certificate]

 

[Reverse]

 

The Warrants
evidenced by this Warrant Certificate are part of a duly authorized issue of Warrants entitling the holder on exercise to receive
shares of Class A Common Stock and are issued or to be issued pursuant to a Warrant Agreement dated as of March [•], 2021
(the “Warrant Agreement”), duly executed and delivered by the Company to Continental Stock Transfer &
Trust Company, a New York corporation, as warrant agent (the “Warrant Agent”), which Warrant Agreement
is hereby incorporated by reference in and made a part of this instrument and is hereby referred to for a description of the rights,
limitation of rights, obligations, duties and immunities thereunder of the Warrant Agent, the Company and the holders (the words
 “holders” or “holder” meaning the Registered Holders or Registered Holder,
respectively) of the Warrants. A copy of the Warrant Agreement may be obtained by the holder hereof upon written request to the
Company. Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant
Agreement.

 

Warrants
may be exercised at any time during the Exercise Period set forth in the Warrant Agreement. The holder of Warrants evidenced by
this Warrant Certificate may exercise them by surrendering this Warrant Certificate, with the form of Election to Purchase set
forth hereon properly completed and executed, together with payment of the Warrant Price as specified in the Warrant Agreement
(or through “cashless exercise” as provided for in the Warrant Agreement) at the principal corporate trust office of
the Warrant Agent. In the event that upon any exercise of Warrants evidenced hereby the number of Warrants exercised shall be less
than the total number of Warrants evidenced hereby, there shall be issued to the holder hereof or his, her or its assignee, a new
Warrant Certificate evidencing the number of Warrants not exercised.

 

Notwithstanding
anything else in this Warrant Certificate or the Warrant Agreement, no Warrant may be exercised unless at the time of exercise
(i) a registration statement covering the issuance of the shares of Class A Common Stock to be issued upon exercise is effective
under the Securities Act and (ii) a prospectus thereunder relating to the shares of Common Stock is current, except through “cashless
exercise” as provided for in the Warrant Agreement.

 

The Warrant
Agreement provides that upon the occurrence of certain events the number of shares of Class A Common Stock issuable upon exercise
of the Warrants set forth on the face hereof may, subject to certain conditions, be adjusted. If, upon exercise of a Warrant, the
holder thereof would be entitled to receive a fractional interest in a share of Class A Common Stock, the Company shall, upon exercise,
round down to the nearest whole number of shares of Class A Common Stock to be issued to the holder of the Warrant.

 

Warrant
Certificates, when surrendered at the principal corporate trust office of the Warrant Agent by the Registered Holder thereof in
person or by legal representative or attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations
provided in the Warrant Agreement, but without payment of any service charge, for another Warrant Certificate or Warrant Certificates
of like tenor evidencing in the aggregate a like number of Warrants.

 

Upon due
presentation for registration of transfer of this Warrant Certificate at the office of the Warrant Agent a new Warrant Certificate
or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s)
in exchange for this Warrant Certificate, subject to the limitations provided in the Warrant Agreement, without charge except for
any tax or other governmental charge imposed in connection therewith.

 

The Company
and the Warrant Agent may deem and treat the Registered Holder(s) hereof as the absolute owner(s) of this Warrant Certificate (notwithstanding
any notation of ownership or other writing hereon made by anyone), for the purpose of any exercise hereof, of any distribution
to the holder(s) hereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice
to the contrary. Neither the Warrants nor this Warrant Certificate entitles any holder hereof to any rights of a stockholder of
the Company.

 

     

     

    

 

Election to Purchase

 

(To Be Executed Upon Exercise
of Warrant)

 

 

The
undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, to receive shares of
Class A Common Stock and herewith tenders payment for such shares of Class A Common Stock to the order of Integrated Energy
Transition Acquisition Corp. (the “Company”) in the amount of                 
$            in accordance with the terms hereof. The
undersigned requests that a certificate for such shares of Common Stock be registered in the name
of           , whose address
is             and that such shares of Class A Common
Stock be delivered to              , whose
address is             . If said number of shares of
Class A Common Stock is less than all of the shares of Class A Common Stock purchasable hereunder, the undersigned requests
that a new Warrant Certificate representing the remaining balance of such shares of Class A Common Stock be registered in the
name of           , whose address
is              and that such Warrant
Certificate be delivered to               ,
whose address is               .

 

In the
event that the Warrant has been called for redemption by the Company pursuant to Section 6.2 of the Warrant Agreement and
a holder thereof elects to exercise its Warrant pursuant to a Make-Whole Exercise, the number of shares of Class A Common Stock
that this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(c) or Section 6.2 of
the Warrant Agreement, as applicable.

 

In the
event that the Warrant is a Private Placement Warrant or a Working Capital Warrant that is to be exercised on a “cashless
basis” pursuant to subsection 3.3.1(c) of the Warrant Agreement, the number of shares of Class A Common Stock that
this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(c) of the Warrant Agreement.

 

In the
event that the Warrant is to be exercised on a “cashless basis” pursuant to Section 7.4 of the Warrant Agreement,
the number of shares of Class A Common Stock that this Warrant is exercisable for shall be determined in accordance with Section
7.4 of the Warrant Agreement.

 

In the
event that the Warrant may be exercised, to the extent allowed by the Warrant Agreement, through cashless exercise (i) the number
of shares of Class A Common Stock that this Warrant is exercisable for would be determined in accordance with the relevant section
of the Warrant Agreement which allows for such cashless exercise and (ii) the holder hereof shall complete the following: The undersigned
hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, through the cashless exercise provisions
of the Warrant Agreement, to receive shares of Class A Common Stock. If said number of shares is less than all of the shares of
Class A Common Stock purchasable hereunder (after giving effect to the cashless exercise), the undersigned requests that a new
Warrant Certificate representing the remaining balance of such shares of Common Stock be registered in the name of

          , whose address is                  and
that such Warrant Certificate be delivered to

                 , whose address is                 .

 

[Signature Page Follows]

 

     

     

    

 

Date:          ,
20             

	 	Signature
	 	 
	 	 
	 	 
	 	 
	 	(Address)
	 	 
	 	(Tax Identification Number)

 

Signature Guaranteed:

 

 

 

THE SIGNATURE(S) SHOULD BE
GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP
IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS AMENDED).

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