Document:

Exhibit 10.5

 

Aquarius II Acquisition Corporation

Room 901-903, 9/F, Harbour Centre

25 Harbour Road

Wan Chai, Hong Kong SAR

 

Ladies and Gentlemen:

 

Aquarius II Acquisition Corporation
(the “Company”), a blank check company formed for the purpose of acquiring one or more businesses or entities (a “Business
Combination”), intends to register its securities under the Securities Act of 1933, as amended (“Securities Act”), in
connection with its initial public offering (“IPO”), pursuant to a registration statement on Form S-1 (“Registration
Statement”).

 

The undersigned hereby commits that it will purchase 325,000 units of the
Company (“Private Units”), each Private Unit consisting of one ordinary share of the Company, $0.0001 par value (the “Ordinary
Shares”), and one redeemable warrant (the “Warrants”), and each redeemable warrant entitles its holder to purchase one
Ordinary Share, at $10.00 per Private Unit, for a purchase price of $3,250,000 (the “Private Unit Purchase Price”).

 

At least twenty-four (24) hours
prior to the effective date of the Registration Statement, the undersigned will cause the Private Unit Purchase Price to be delivered
to Loeb & Loeb LLP (“Loeb”), counsel for the Company, by wire transfer as set forth in the instructions attached as Exhibit
A to hold in a non-interest bearing account until the Company consummates the IPO.

 

The consummation of the purchase
and issuance of the Private Units shall occur simultaneously with the consummation of the IPO. Simultaneously with the consummation of
the IPO, Loeb shall deposit the Private Unit Purchase Price, without interest or deduction, into the trust fund (“Trust Fund”)
established by the Company for the benefit of the Company’s public shareholders as described in the Registration Statement. If the
Company does not complete the IPO within ten (10) days from the date of this letter, the Private Unit Purchase Price (without interest
or deduction) will be returned to the undersigned.

 

Each of the Company, and the
undersigned acknowledges and agrees that Loeb is serving hereunder solely as a convenience to the parties to facilitate the purchase of
the Private Units and Loeb’s sole obligation under this letter agreement is to act with respect to holding and disbursing the Private
Unit Purchase Price as described above. Loeb shall not be liable to the Company, EF Hutton, division of Benchmark Investments, LLC, or
the undersigned or any other person or entity in respect of any act or failure to act hereunder or otherwise in connection with performing
its services hereunder unless Loeb has acted in a manner constituting gross negligence or willful misconduct. The Company and the undersigned
shall indemnify Loeb against any claim made against it (including reasonable attorney’s fees) by reason of it acting or failing
to act in connection with this letter agreement except as a result of its gross negligence or willful misconduct. Loeb may rely and shall
be protected in acting or refraining from acting upon any written notice, instruction or request furnished to it hereunder and believed
by it to be genuine and to have been signed or presented by the proper party or parties.

 

The Private Units will be identical to the units to be sold by
the Company in the IPO. Additionally, the undersigned agrees:

 

	 	●	to vote the Ordinary Shares included in the Private Units in favor of any proposed Business Combination;

 

	 	●	not to propose, or vote in favor of, an amendment to the Company’s
Amended and Restated Memorandum and Articles of Association that would affect the substance or timing of the Company’s obligation
to redeem 100% of the Company’s Ordinary Shares sold in the IPO if the Company does not complete an initial Business Combination
within 9 months from the date that the registration statement is declared effective (or up to 18 months, as applicable), unless the Company
provides the holders of Ordinary Shares sold in the IPO with the opportunity to redeem their Ordinary Shares upon approval of any such
amendment at a per-share price, payable in cash, equal to the aggregate amount of the Trust Fund, including interest earned on Trust Fund
and not previously released to the Company to pay the Company’s franchise and income taxes, divided by the number of then outstanding
Ordinary Shares sold in the IPO;

 

     

     

    

 

	 	●	not to convert any Ordinary Shares included in the Private Units into the right to receive cash from the Trust Fund in connection with a shareholder vote to approve either a Business Combination or an amendment to the provisions of the Company’s Amended and Restated Memorandum and Articles of Association, and not to tender the Private Units in connection with a tender offer conducted prior to the closing of a Business Combination;

 

	 	●	the undersigned will not participate in any liquidation distribution with respect to the Private Units (but will participate in liquidation distributions with respect to any units or Ordinary Shares purchased by the undersigned in the IPO or in the open market) if the Company fails to consummate a Business Combination;

 

	 	●	that the Private Units and underlying securities will not be transferable until after the consummation of a Business Combination except (i) to the Company’s pre-IPO shareholders, or to the Company’s officers, directors, advisors and employees, (ii) transfers to the undersigned’s affiliates or its members upon its liquidation, (iii) to relatives and trusts for estate planning purposes, (iv) by virtue of the laws of descent and distribution upon death, (v) pursuant to a qualified domestic relations order, (vi) by private sales made in connection with the consummation of a Business Combination at prices no greater than the price at which the Private Units were originally purchased or (vii) to the Company for cancellation in connection with the consummation of a Business Combination, in each case (except for clause vii) where the transferee agrees to the terms of the transfer restrictions; and

 

	 	●	the Private Units will include any additional terms or restrictions as is customary in other similarly structured blank check company offerings or as may be reasonably required by the underwriters in the IPO in order to consummate the IPO, each of which will be set forth in the Registration Statement.

 

The undersigned acknowledges
and agrees that the purchaser of the Private Units will execute agreements in form and substance typical for transactions of this nature
necessary to effectuate the foregoing agreements and obligations prior to the consummation of the IPO as are reasonably acceptable to
the undersigned, including but not limited to an insider letter.

 

The undersigned hereby represents
and warrants that:

 

	 	(a)	it has been advised that the Private Units have not been registered under the Securities Act;

 

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

 

	 	(c)	it has no present intention of selling or otherwise disposing of the Private Units in violation of the securities laws of the United States;

 

	 	(d)	it is an “accredited investor” as defined by Rule 501 of Regulation D promulgated under the Securities Act of 1933, as amended;

 

	 	(e)	it has had both the opportunity to ask questions and receive answers from the officers and directors of the Company and all persons acting on its behalf concerning the terms and conditions of the offer made hereunder;

 

	 	(f)	it is familiar with the proposed business, management, financial condition and affairs of the Company;

 

	 	(g)	it has full power, authority and legal capacity to execute and deliver this letter and any documents contemplated herein or needed to consummate the transactions contemplated in this letter; and

 

	 	(h)	this letter constitutes its legal, valid and binding obligation, and is enforceable against it.

 

    2

     

    

 

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

 

	 	Very truly yours,
	 	 
	 	AQUARIUS II SPONSOR LIMITED

 

	 	By:	 
	 	Name: 	Yan Zhang
	 	Title:  	Director

 

Accepted and Agreed:

 

	AQUARIUS II ACQUISITION CORP.	 
	 	 
	By: 	 	 
	 	Name: 	Yan Zhang	 
	 	Title:  	Chief Executive Officer	 

 

    3

     

    

 

Exhibit A

 

Wire Instructions

 

Bank Name: Citigroup Private Bank

		Bank Address:	153 East 53rd Street

		New	York, NY 10022

Account Name: Loeb & Loeb LLP – Trust Account

Account Number: 24576266

Routing/ABA Number (Domestic Wires): 021000089

Swift Code (Foreign Wire): CITIUS33

Note: AQUARIUS II 237568/10001Exhibit 10.7

 

Administrative Service Agreement

 

This Administrative Service Agreement (the “Agreement”)
dated this [_______] the day of [_______], 2022 is between Lion Wealth Limited, herein referred to as “Service Provider”
and Aquarius II Acquisition Corp., herein referred to as “Customer”.

 

Service Provider has agreed to provide services
to the Customer on the terms and conditions set out in this Agreement, while Customer is of the opinion that Service Provider has the
proper and necessary qualifications, experience and abilities to provide services to Customer.

 

Therefore in consideration of the matters described
above, the receipt and sufficiency of which consideration is hereby acknowledged, the Customer and the Service Provider agree as follows:

 

		1.	Scope of Work

 

The Service Provider is to provide
the Customer with the following services (the “Services”): Company Administration.

 

The services will include any other
tasks which the Customer and the Service Provider may agree on.

 

		2.	Term of Agreement

 

This Agreement will begin on [_______], 2022 and will remain
in full force and effect until the completion of the Services. This Agreement may be extended by mutual written agreement of the parties.

 

		3.	Termination 

 

If either party seeks termination of
this Agreement, the terminating party must provide a 30 days written notice to the other party.

 

		4.	Compensation 

 

The Customer will provide compensation to the Service Provider of $10,000
per month for the services rendered by the Service Provider as required by this Agreement. Compensation is payable at the completion of
services, provided, however, that the Customer may delay payment of such monthly fee upon a determination by the audit committee of the
board of directors of the Customer that the Customer lacks sufficient funds held outside of the Trust Account (as defined below) to pay
actual or anticipated expenses in connection with an initial business combination. Any such unpaid amount shall accrue without interest
and either be due and payable no later than the date of Customer’s initial business combination. If the Customer does not consummate
an initial business combination, any accrued and unpaid amounts hereunder shall be forgiven. The Service Provider hereby agrees that it does not
have any right, title, interest or claim of any kind in or to any monies that may be set aside in a trust account (the “Trust Account”)
to be established upon the consummation of the IPO (the “Claim”) and hereby waives any Claim it may have in the future as a
result of, or arising out of, any negotiations, contracts or agreements with the Company and will not seek recourse against the Trust
Account for any reason whatsoever.

 

    

    

    

 

IN WITNESS WHEREOF the parties have duly affixed their signatures under
hand on this [_______] day of [_______], 2022.

 

	 	LION WEALTH LIMITED

 

	 	By:	 
	 	Name:	Chunning Wang
	 	Title:  	Director

  

	 	AQUARIUS II ACQUISITION CORP.
	 	 	 
	 	By:	 
	 	Name:	Yan Zhang
	 	Title:  	Chief Executive Officer

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