Exhibit 10.3


 


INVESTMENT MANAGEMENT TRUST AGREEMENT


 


This Investment Management Trust
Agreement (this “Agreement”) is made effective as of [●], 2021, by and between Cactus Acquisition Corp.
1 Limited, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company,
a New York corporation (the “Trustee”).


 


WHEREAS, the Company’s
registration statement on Form S-1, File No. 333-258042 (the “Registration Statement”) and prospectus (the “Prospectus”)
for the initial public offering of the Company’s units (the “Units”), each of which consists of one of the Company’s
Class A ordinary shares, par value $0.0001 per share (the “Ordinary Shares”), and one-half of one warrant, each
whole warrant entitling the holder thereof to purchase one Ordinary Share (such initial public offering hereinafter referred to as the
“Offering”), has been declared effective as of the date hereof by the U.S. Securities and Exchange Commission;
and


 


WHEREAS, the Company has
entered into an Underwriting Agreement (the “Underwriting Agreement”) with Moelis & Company LLC and Oppenheimer
& Co. Inc., as co-representatives (the “Co-Representatives”) of the several underwriters (the “Underwriters”)
named therein; and


 


WHEREAS, as described
in the Prospectus, $102,000,000 of the gross proceeds of the Offering and sale of the Private Placement Warrants (as defined in the Underwriting
Agreement) (or $117,000,000 if the Underwriters’ over-allotment option is exercised in full) will be delivered to the Trustee to
be deposited and held in a trust account located at all times in the United States (the “Trust Account”) for
the benefit of the Company and the holders of Ordinary Shares included in the Units issued in the Offering as hereinafter provided (the
amount to be delivered to the Trustee (and any interest subsequently earned thereon) is referred to herein as the “Property,”
the shareholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public Shareholders,”
and the Public Shareholders and the Company will be referred to together as the “Beneficiaries”); and


 


WHEREAS, the Company and
the Trustee desire to enter into this Agreement to set forth the terms and conditions pursuant to which the Trustee shall hold the Property.


 


NOW THEREFORE, IT IS AGREED:


 


1. Agreements
and Covenants of Trustee. The Trustee hereby agrees and covenants to:


 


(a) Hold
the Property in trust for the Beneficiaries in accordance with the terms of this Agreement in the Trust Account established by the Trustee
in the United States at [●] (or at another U.S. chartered commercial bank with consolidated assets of $100 billion or more), and
at a brokerage institution selected by the Trustee that is reasonably satisfactory to the Company;


 


(b) Manage,
supervise and administer the Trust Account subject to the terms and conditions set forth herein;


 


(c) In
a timely manner, upon the written instruction of the Company in a form substantially similar to that attached hereto as Exhibit A, either
(a) invest and reinvest the Property in United States “government securities” within the meaning of Section 2(a)(16) of the
Investment Company Act of 1940, as amended (the “Investment Company Act”), having a maturity of 185 days or less, and/or in
any open ended investment company registered under the Investment Company Act that holds itself out as a money market fund selected by
the Company meeting the conditions of paragraph (d) of Rule 2a-7 promulgated under the Investment Company Act, which invest only in direct
U.S. government treasury obligations or (b) cause the brokerage institution referred to in 1(a) above to place the Property in a cash
demand deposit account; it being understood that unless the Company instructs the Trustee to do either of the foregoing, the Trust Account
will earn no interest while account funds are uninvested awaiting the Company’s instructions hereunder and the Trustee may earn
bank credits or other consideration during such periods;


 






    


    


    

 


(d) Collect
and receive, when due, all interest or other income arising from the Property, which shall become part of the “Property,”
as such term is used herein;


 


(e) Promptly
notify the Company and the Co-Representatives of all communications received by the Trustee with respect to any Property requiring action
by the Company;


 


(f) Supply
any necessary information or documents as may be requested by the Company (or its authorized agents) in connection with the Company’s
preparation of the tax returns relating to assets held in the Trust Account or in connection with the preparation or completing of the
audit of the Company’s financial statements by the Company’s auditors;


 


(g) Participate
in any plan or proceeding for protecting or enforcing any right or interest arising from the Property if, as and when instructed by the
Company to do so;


 


(h) Render
to the Company monthly written statements of the activities of, and amounts in, the Trust Account reflecting all receipts and disbursements
of the Trust Account;


 


(i) Commence
liquidation of the Trust Account only after and promptly after (x) receipt of, and only in accordance with, the terms of a letter from
the Company (“Termination Letter”) in a form substantially similar to that attached hereto as either Exhibit
A or Exhibit B, as applicable, signed on behalf of the Company by its Chief Executive Officer or Chairman of the
board of directors of the Company (the “Board”), and in the case of Exhibit A, jointly signed by
the Co-Representatives, and complete the liquidation of the Trust Account and distribute the Property in the Trust Account, including
interest (which interest shall be net of any taxes payable and, in the case of a Termination Letter in a form substantially similar to
that attached hereto as Exhibit B, less up to $100,000 of interest to pay dissolution expenses), only as directed in the Termination
Letter and the other documents referred to therein, or (y) upon the date which is the later of (i) 18 months after the closing of the
Offering and (ii) such later date as may be approved by the Company’s shareholders in accordance with the Company’s amended
and restated memorandum and articles of association, if a Termination Letter has not been received by the Trustee prior to such date,
in which case the Trust Account shall be liquidated in accordance with the procedures set forth in the Termination Letter attached as Exhibit
B and the Property in the Trust Account, including interest (which interest shall be net of any taxes payable and less up to
$100,000 of interest to pay dissolution expenses), shall be distributed to the Public Shareholders of record as of such date; provided, however,
that in the event the Trustee receives a Termination Letter in a form substantially similar to Exhibit B hereto, or if
the Trustee begins to liquidate the Property because it has received no such Termination Letter by the date specified in clause (y) of
this Section ‎1(i), the Trustee shall keep the Trust Account open until twelve (12) months following the date
the Property has been distributed to the Public Shareholders;


 


(j) Upon
written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto as Exhibit C,
withdraw from the Trust Account and distribute to the Company the amount of interest earned on the Property requested by the Company to
cover any tax obligation owed by the Company as a result of assets of the Company or interest or other income earned on the Property,
which amount shall be delivered directly to the Company by electronic funds transfer or other method of prompt payment, and the Company
shall forward such payment to the relevant taxing authority, as applicable; provided, however, that to the extent
there is not sufficient cash in the Trust Account to pay such tax obligation, the Trustee shall liquidate such assets held in the Trust
Account as shall be designated by the Company in writing to make such distribution so long as there is no reduction in the principal amount
initially deposited in the Trust Account. The written request of the Company referenced above shall constitute presumptive evidence that
the Company is entitled to said funds, and the Trustee shall have no responsibility to look beyond said request;


 






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(k) Upon
written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto as Exhibit D,
the Trustee shall distribute to the Public Shareholders of record as of such date the amount requested by the Company to be used to redeem
Ordinary Shares from Public Shareholders properly submitted in connection with a shareholder vote to approve an amendment to the Company’s
amended and restated memorandum and articles of association (i) that would affect the ability of holders of public Ordinary Shares to
exercise redemption rights or modify the substance or timing of the Company’s obligation to redeem 100% of its public Ordinary Shares
if the Company has not consummated an initial Business Combination within such time as is described in the Company’s amended and
restated memorandum and articles of association or (ii) with respect to any other provision relating to shareholders’ rights or
pre-initial Business Combination activity; and


 


(l) Not
make any withdrawals or distributions from the Trust Account other than pursuant to Sections ‎1(i), ‎1(j)
or ‎1(k) above.


 


2. Agreements
and Covenants of the Company. The Company hereby agrees and covenants to:


 


(a) Give
all instructions to the Trustee hereunder in writing, signed by the Company’s Chief Executive Officer or Chairman of the Board.
In addition, except with respect to its duties under Sections ‎1(i), ‎1(j) and ‎1(k) hereof,
the Trustee shall be entitled to rely on, and shall be protected in relying on, any verbal or telephonic advice or instruction which it,
in good faith and with reasonable care, believes to be given by any one of the persons authorized above to give written instructions,
provided that the Company shall promptly confirm such instructions in writing;


 


(b) Subject
to Section ‎4 hereof, hold the Trustee harmless and indemnify the Trustee from and against any and all
out-of-pocket expenses, including reasonable counsel fees and disbursements, or losses suffered by the Trustee in connection with any
action taken by it hereunder and in connection with any action, suit or other proceeding brought against the Trustee involving any claim,
or in connection with any claim or demand, which in any way arises out of or relates to this Agreement, the services of the Trustee hereunder,
or the Property or any interest earned on the Property, except for expenses and losses resulting from the Trustee’s gross negligence,
fraud or willful misconduct. Promptly after the receipt by the Trustee of notice of demand or claim or the commencement of any action,
suit or proceeding, pursuant to which the Trustee intends to seek indemnification under this Section ‎2(b),
it shall notify the Company in writing of such claim (hereinafter referred to as the “Indemnified Claim”). The
Trustee shall have the right to conduct and manage the defense against such Indemnified Claim; provided that the Trustee
shall obtain the consent of the Company with respect to the selection of counsel, which consent shall not be unreasonably withheld or
delayed. The Trustee may not agree to settle any Indemnified Claim without the prior written consent of the Company, which such consent
shall not be unreasonably withheld or delayed. The Company may participate in such action with its own counsel;


 


(c) Pay
the Trustee the fees set forth on Schedule A hereto, including an initial acceptance fee, annual administration fee,
and transaction processing fee which fees shall be subject to modification by the parties from time to time. It is expressly understood
that the Property shall not be used to pay such fees unless and until it is distributed to the Company pursuant to Sections ‎1(i) through ‎1(k) hereof.
The Company shall pay the Trustee the initial acceptance fee and the first annual administration fee at the consummation of the Offering.
The Company shall not be responsible for any other fees or charges of the Trustee except as set forth in this Section ‎2(c), Schedule
A and as may be provided in Section ‎2(b) hereof;


 


(d) In
connection with any vote of the Company’s shareholders regarding a merger, amalgamation, share exchange, asset acquisition, share
purchase, reorganization or similar business combination involving the Company and one or more businesses (a “Business Combination”),
provide to the Trustee an affidavit or certificate of the inspector of elections for the shareholder meeting verifying the vote of such
shareholders regarding such Business Combination;


 






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(e) Provide
the Co-Representatives with a copy of any Termination Letter(s) and/or any other correspondence that is sent to the Trustee with respect
to any proposed withdrawal from the Trust Account promptly after it issues the same; and


 


(f) Instruct
the Trustee to make only those distributions that are permitted under this Agreement, and refrain from instructing the Trustee to make
any distributions that are not permitted under this Agreement.


 


3. Limitations
of Liability. The Trustee shall have no responsibility or liability to:


 


(a) Imply
obligations, perform duties, inquire or otherwise be subject to the provisions of any agreement or document other than this Agreement
and that which is expressly set forth herein;


 


(b) Take
any action with respect to the Property, other than as directed in Section ‎1 hereof, and the Trustee
shall have no liability to any third party except for liability arising out of the Trustee’s gross negligence, fraud or willful
misconduct;


 


(c) Institute
any proceeding for the collection of any principal and income arising from, or institute, appear in or defend any proceeding of any kind
with respect to, any of the Property unless and until it shall have received instructions from the Company given as provided herein to
do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any expenses incident thereto;


 


(d) Refund
any depreciation in principal of any Property;


 


(e) Assume
that the authority of any person designated by the Company to give instructions hereunder shall not be continuing unless provided otherwise
in such designation, or unless the Company shall have delivered a written revocation of such authority to the Trustee;


 


(f) The
other parties hereto or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or omitted, in
good faith and in the Trustee’s best judgment, except for the Trustee’s gross negligence, fraud or willful misconduct. The
Trustee may rely conclusively and shall be protected in acting upon any order, notice, demand, certificate, opinion or advice of counsel
(including counsel chosen by the Trustee, which counsel may be the Company’s counsel), statement, instrument, report or other paper
or document (not only as to its due execution and the validity and effectiveness of its provisions, but also as to the truth and acceptability
of any information therein contained) which the Trustee believes, in good faith and with reasonable care, to be genuine and to be signed
or presented by the proper person or persons. The Trustee shall not be bound by any notice or demand, or any waiver, modification, termination
or rescission of this Agreement or any of the terms hereof, unless evidenced by a written instrument delivered to the Trustee, signed
by the proper party or parties and, if the duties or rights of the Trustee are affected, unless it shall give its prior written consent
thereto;


 


(g) Verify
the accuracy of the information contained in the Registration Statement;


 


(h) Provide
any assurance that any Business Combination entered into by the Company or any other action taken by the Company is as contemplated by
the Registration Statement;


 


(i) File
information returns with respect to the Trust Account with any local, state or federal taxing authority or provide periodic written statements
to the Company documenting the taxes payable by the Company, if any, relating to any interest income earned on the Property;


 






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(j) Prepare,
execute and file tax reports, income or other tax returns and pay any taxes with respect to any income generated by, and activities relating
to, the Trust Account, regardless of whether such tax is payable by the Trust Account or the Company, including, but not limited to, income
tax obligations, except pursuant to Section ‎1(j) hereof; or


 


(k) Verify
calculations, qualify or otherwise approve the Company’s written requests for distributions pursuant to Sections ‎1(i), ‎1(j) and ‎1(k)
hereof.


 


4. Trust
Account Waiver. The Trustee has no right of set-off or any right, title, interest or claim of any kind (“Claim”)
to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust Account that it
may have now or in the future. In the event the Trustee has any Claim against the Company under this Agreement, including, without limitation,
under Section ‎2(b) or Section ‎2(c) hereof, the Trustee shall pursue
such Claim solely against the Company and its assets outside the Trust Account and not against the Property or any monies in the Trust
Account.


 


5. Termination.
This Agreement shall terminate as follows:


 


(a) If
the Trustee gives written notice to the Company that it desires to resign under this Agreement, the Company shall use its reasonable efforts
to locate a successor trustee, pending which the Trustee shall continue to act in accordance with this Agreement. At such time that the
Company notifies the Trustee that a successor trustee has been appointed and has agreed to become subject to the terms of this Agreement,
the Trustee shall transfer the management of the Trust Account to the successor trustee, including but not limited to the transfer of
copies of the reports and statements relating to the Trust Account, whereupon this Agreement shall terminate; provided, however,
that in the event that the Company does not locate a successor trustee within ninety (90) days of receipt of the resignation notice from
the Trustee, the Trustee may submit an application to have the Property deposited with any court in the State of New York or with the
United States District Court for the Southern District of New York and upon such deposit, the Trustee shall be immune from any liability
whatsoever; or


 


(b) At
such time that the Trustee has completed the liquidation of the Trust Account and its obligations in accordance with the provisions of Section ‎1(i) hereof
and distributed the Property in accordance with the provisions of the Termination Letter, this Agreement shall terminate except with respect
to Section ‎2(b); or


 


(c) If
the Offering is not consummated within ten (10) business days of the date of this Agreement, in which case any funds received by the Trustee
from the Company or Cactus Healthcare Management LP for purposes of funding the Trust Account shall be promptly returned to the Company
or Cactus Healthcare Management LP, as applicable.


 


6. Miscellaneous.


 


(a) The
Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below with respect to funds transferred
from the Trust Account. The Company and the Trustee will each restrict access to confidential information relating to such security procedures
to authorized persons. Each party must notify the other party immediately if it has reason to believe unauthorized persons may have obtained
access to such confidential information, or of any change in its authorized personnel. In executing funds transfers, the Trustee shall
rely upon all information supplied to it by the Company, including, account names, account numbers, and all other identifying information
relating to a Beneficiary, Beneficiary’s bank or intermediary bank. Except for any liability arising out of the Trustee’s
gross negligence, fraud or willful misconduct, the Trustee shall not be liable for any loss, liability or expense resulting from any error
in the information or transmission of the funds.


 






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(b) This
Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New York, without giving effect
to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction.


 


(c) This
Agreement contains the entire agreement and understanding of the parties hereto with respect to the subject matter hereof. Except for Sections ‎1(i), ‎1(j)
and ‎1(k) hereof (which sections may not be modified, amended or deleted without the affirmative vote of sixty
five percent (65%) of the then outstanding Ordinary Shares and Class A ordinary shares, par value $0.0001 per share, of the Company voting
together as a single class; provided that no such amendment will affect any Public Shareholder who has otherwise indicated
his, her or its election to redeem his, her or its Ordinary Shares in connection with a shareholder vote sought to amend this Agreement),
this Agreement or any provision hereof may only be changed, amended or modified (other than to correct a typographical error) by a writing
signed by each of the parties hereto.


 


(d) The
parties hereto consent to the jurisdiction and venue of any state or federal court located in the City of New York, State of New York,
for purposes of resolving any disputes hereunder. AS TO ANY CLAIM, CROSS-CLAIM OR COUNTERCLAIM IN ANY WAY RELATING TO THIS AGREEMENT,
EACH PARTY WAIVES THE RIGHT TO TRIAL BY JURY.


 


(e) Any
notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing and shall
be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery, by electronic
mail or by facsimile transmission:


 


if to the Trustee, to:


 


Continental Stock Transfer & Trust Company


One State Street, 30th Floor


New York, NY 10004


Attn: [●]


Email:    [●]


 


if to the Company, to:


 


Cactus Acquisition Corp. 1 Limited


4B Cedar Brook Drive


Cranbury, NJ 08512


Attn: Steven T, Wills


Email:  swills@palatin.com  


 


in each case, with copies to:


 


Meitar Law Offices


16 Abba Hillel Road


Ramat Gan, Israel 5251608


Attn: J. David Chertok


Email: dchertok@meitar.com 


and


 


Moelis & Company LLC


399
Park Avenue, 4th Floor

New York, NY 10022


Attn.: Ashish Contractor


Email:     Ashish.Contractor@moelis.com


 


and


 


Oppenheimer & Co. Inc.,


85
Broad St

New York, NY 10004


Attn: Michael A. Margolis


Email: MichaelA.Margolis@opco.com  


 






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(f) This
Agreement may not be assigned by the Trustee without the prior consent of the Company.


 


(g) Each
of the Company and the Trustee hereby represents that it has the full right and power and has been duly authorized to enter into this
Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that it shall not make
any claims or proceed against the Trust Account, including by way of set-off, and shall not be entitled to any funds in the Trust Account
under any circumstance.


 


(h) This
Agreement is the joint product of the Trustee and the Company and each provision hereof has been subject to the mutual consultation, negotiation
and agreement of such parties and shall not be construed for or against any party hereto.


 


(i) This
Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall
together constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or electronic transmission
shall constitute valid and sufficient delivery thereof.


 


(j) Each
of the Company and the Trustee hereby acknowledges and agrees that the Co-Representatives, on behalf of the Underwriters, are a third
party beneficiary of this Agreement.


 


(k) Except
as specified herein, no party to this Agreement may assign its rights or delegate its obligations hereunder to any other person or entity.


 


[Signature Page Follows]


 




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IN WITNESS WHEREOF, the
parties have duly executed this Investment Management Trust Agreement as of the date first written above.


 


	 	
    CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as
    Trustee

    

	 	 
	 	By:	      
	 	 	Name:
	 	 	Title:


 


	 	
    CACTUS ACQUISITION CORP. 1 LIMITED

    

	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:


  




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EXHIBIT A


 


[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust Company


One State Street, 30th Floor


New York, New York 10004


Attn: [●]


 


Re: Trust Account No. Termination Letter


 


[●]


 


Pursuant
to Section ‎1(i) of the Investment Management Trust Agreement between Cactus Acquisition Corp. 1 Limited (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [·],
2021 (the “Trust Agreement”), this is to advise you that the Company has entered into an agreement with [·]
(the “Target Business”) to consummate a business combination with Target Business (the “Business
Combination”) on or about [insert date]. The Company shall notify you at least seventy-two (72) hours in advance
(or such shorter time as you may agree) of the actual date of the consummation of the Business Combination (the “Consummation
Date”). Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement.


 


In accordance with the terms
of the Trust Agreement, we hereby authorize you to commence to liquidate all of the assets of the Trust Account and to transfer the proceeds
into a segregated account held by you on behalf of the Beneficiaries to the effect that, on the Consummation Date, all of the funds held
in the Trust Account will be immediately available for transfer to the account or accounts that the Company shall direct on the Consummation
Date. It is acknowledged and agreed that while the funds are on deposit in the trust operating account at [●.] awaiting distribution,
the Company will earn no interest or dividends.


 


On the Consummation Date (i)
counsel for the Company shall deliver to you written notification that the Business Combination has been consummated, or will be consummated
substantially, concurrently with your transfer of funds to the accounts as directed by the Company (the “Notification”)
and (ii) the Company shall deliver to you (a) a certificate of the Chief Executive Officer or Chief Financial Officer of the Company,
which verifies that the Business Combination has been approved by a vote of the Company’s shareholders, if a vote is held and (b)
joint written instruction signed by the Company, Moelis & Company LLC and Oppenheimer & Co. Inc.,, with respect to the transfer
of the funds held in the Trust Account (the “Instruction Letter”). You are hereby directed and authorized to
transfer the funds held in the Trust Account immediately upon your receipt of the Notification and the Instruction Letter, in accordance
with the terms of the Instruction Letter. In the event that certain deposits held in the Trust Account may not be liquidated by the Consummation
Date without penalty, you will notify the Company in writing of the same and the Company shall direct you as to whether such funds should
remain in the Trust Account and be distributed after the Consummation Date to the Company. Upon the distribution of all the funds, net
of any payments necessary for reasonable unreimbursed expenses related to liquidating the Trust Account, your obligations under the Trust
Agreement shall be terminated.


 


In the event that the Business
Combination is not consummated on the Consummation Date described in the notice thereof and we have not notified you on or before the
original Consummation Date of a new Consummation Date, then upon receipt by the Trustee of written instructions from the Company, the
funds held in the Trust Account shall be reinvested as provided in Section ‎1(c) of the Trust Agreement on the business day immediately
following the Consummation Date as set forth in such written instruction as soon thereafter as possible.


 


	 	
    Very truly yours,

     

    

    Cactus Acquisition Corp. 1 Limited

    

	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:


 


Agreed and acknowledged by:


 


Moelis & Company LLC


 


	By:	 	 
	 	Name:	 
	 	Title:	 


 


Oppenheimer & Co. Inc.


 


	By:	 	 
	 	Name:	 
	 	Title:	 


 




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EXHIBIT B


 


[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust Company


One State Street, 30th Floor


New York, New York 10004


Attn: [●]


 


Re: Trust Account No. Termination Letter


 


[●]:


 


Pursuant
to Section ‎1(i) of the Investment Management Trust Agreement between Cactus Acquisition Corp. 1 Limited (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [·],
2021 (the “Trust Agreement”), this is to advise you that the Company has been unable to effect a Business Combination
with a Target Business within the time frame specified in the Company’s amended and restated memorandum and articles of association,
as described in the Company’s Prospectus relating to the Offering. Capitalized terms used but not defined herein shall have the
meanings set forth in the Trust Agreement.


 


In
accordance with the terms of the Trust Agreement, we hereby authorize you to liquidate all of the assets in the Trust Account and to transfer
the total proceeds into a segregated account held by you on behalf of the Beneficiaries to await distribution to the Public Shareholders.
The Company has selected [·]
as the effective date for the purpose of determining when the Public Shareholders will be entitled to receive their share of the liquidation
proceeds. You agree to be the Paying Agent of record and, in your separate capacity as Paying Agent, agree to distribute said funds directly
to the Company’s Public Shareholders in accordance with the terms of the Trust Agreement and the amended and restated memorandum
and articles of association of the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed
expenses related to liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated, except to the extent
otherwise provided in Section ‎1(i) of the Trust Agreement.


 


	 	
    Very truly yours,

     

    Cactus Acquisition Corp. 1 Limited 

	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:


 


		cc:	Moelis & Company LLC,



Oppenheimer & Co. Inc. 


 




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EXHIBIT C


 


[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust Company


One State Street, 30th Floor


New York, New York 10004


Attn: [●]


 


Re: Trust Account No. Tax Payment Instruction


 


[●]:


 


Pursuant
to Section ‎1(j) of the Investment Management Trust Agreement between Cactus Acquisition Corp. 1 Limited (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [·],
2021 (the “Trust Agreement”), the Company hereby requests that you deliver to the Company $[·]
of the interest income earned on the Property as of the date hereof. Capitalized terms used but not defined herein shall have the meanings
set forth in the Trust Agreement.


 


The Company needs such funds
[to pay for the tax obligations as set forth on the attached tax return or tax statement]. In accordance with the terms of the Trust Agreement,
you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your receipt of this letter to the Company’s
operating account at:


 


[WIRE INSTRUCTION INFORMATION]


 


	 	
    Very truly yours,

     

    Cactus Acquisition Corp. 1 Limited

     

	 	By:	 
	 	 	Name:
	 	 	Title:


 


		cc:	Moelis & Company LLC,



Oppenheimer & Co. Inc. 


 




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EXHIBIT D


 


[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust Company


One State Street, 30th Floor


New York, New York 10004


Attn: [●]


 


Re: Trust Account No. Shareholder Redemption
Withdrawal Instruction


 


Mr. [●]


 


Pursuant
to Section ‎1(k) of the Investment Management Trust Agreement between Cactus Acquisition Corp. 1 Limited (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of [·],
2021 (the “Trust Agreement”), the Company hereby requests that you deliver to the redeeming Public Shareholders
of the Company $[·] of
the principal and interest income earned on the Property as of the date hereof into a segregated account held by you on behalf of the
Beneficiaries for distribution to the Shareholders who have requested redemption of their Ordinary Shares. Capitalized terms used but
not defined herein shall have the meanings set forth in the Trust Agreement.


 


The Company needs such funds
to pay its Public Shareholders who have properly elected to have their Ordinary Shares redeemed by the Company in connection with a shareholder
vote to approve an amendment to the provisions of the Company’s amended and restated memorandum and articles of association (i)
that would affect the substance or timing of the Company’s obligation to redeem 100% of its public Ordinary Shares if the Company
does not complete its initial Business Combination within the required time period or (ii) with respect to any other provision relating
to shareholders’ rights or pre-initial Business Combination activity. As such, you are hereby directed and authorized to transfer
(via wire transfer) such funds promptly upon your receipt of this letter.


 


	 	
    Very truly yours,

     

    Cactus Acquisition Corp. 1 Limited 

	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:


 


		cc:	Moelis & Company LLC,



Oppenheimer & Co. Inc. 


 


 


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