Exhibit 5.1

 

Mourant Ozannes (Cayman) LLP

94 Solaris Avenue

Camana Bay

PO Box 1348

Grand Cayman KY1-1108

Cayman Islands

 

T +1 345 949 4123
F +1 345 949 4647

 

Huachen AI Parking Management Technology Holding Co., Ltd

c/o Mourant Governance Services (Cayman) Limited

P.O. Box 1348

94 Solaris Avenue

Grand Cayman KY1-1108

Cayman Islands

 

Date | 15 September 2026

 

Our ref | 8063797/258579374/2

 

Huachen AI Parking Management Technology Holding Co., Ltd (the Company)

 

We have acted as the Cayman Islands legal advisers to the Company in connection with the Company’s registration statement on Form F-3 (File No. 333-296529), including all amendments and supplements thereto, filed on 5 June 2026 (as amended to date) with the U.S. Securities and Exchange Commission (the Commission) under the U.S. Securities Act of 1933, as amended, relating to the offering of, among others, class A ordinary shares of a par value of US$0.0000375 each (Ordinary Shares) and warrants (the Registration Statement, which term does not include any other document or agreement whether or not specifically referred to therein or attached as an exhibit or schedule thereto) and the Company’s prospectus supplement (the Prospectus) relating to a direct offering of certain Ordinary Shares, pre-funded warrants and warrants pursuant to the Securities Purchase Agreement (as defined below) (the Ordinary Shares being offered as part of the direct offering, the Offer Shares and each, an Offer Share) (the pre-funded warrants and warrants being offered, the Warrants, and the Ordinary Shares issuable on exercise thereof, the Warrant Shares).

 

1.Documents reviewed

 

For the purposes of this opinion letter, we have reviewed a copy of each of the following documents:

 

(a)the certificate of incorporation of the Company dated 30 September 2021;

 

(b)the amended and restated memorandum and articles of association of the Company adopted by a special resolution dated 18 August 2026 (the M&A);

 

(c)a copy of the Company’s register of directors and officers that was provided to us by the Company and a certificate from a director of the Company dated 15 September 2026 (together with the M&A and the Certificate of Good Standing (defined below), the Company Records);

 

Mourant Ozannes (Cayman) LLP is registered as a limited liability partnership in the Cayman Islands with registration number 601078

 

 

mourant.com

 

(d)written resolutions of the board of directors of the Company dated 15 September 2026 approving (among other things) the offering and issue of the Offer Shares (the Resolutions);

 

(e)a certificate of good standing dated 11 September 2026, issued by the Registrar of Companies (the Registrar) in the Cayman Islands (the Certificate of Good Standing);

 

(f)the Prospectus;

 

(g)the Registration Statement;

 

(h)a securities purchase agreement (the Securities Purchase Agreement) dated 15 September 2026 between the Company and each purchaser identified on the signature pages thereto (each a Purchaser and, together, the Purchasers); and

 

(i)the forms of the Warrants (being the form of pre-funded warrant and the form of warrant) to be issued by the Company to each relevant Purchaser that elects to purchase Warrants pursuant to the terms of the relevant Securities Purchase Agreement.

 

2.Assumptions

 

In giving this opinion, we have assumed (and have not independently verified) that:

 

2.1each document examined by us, whether it is an original or copy, is (along with any date, signature, initial, stamp or seal on it) genuine and complete, up-to-date and (where applicable) in full force and effect;

 

2.2where a document has been examined by us in draft form, it will be or has been executed and/or filed in the form of the draft, and where a number of drafts of a document have been examined by us all changes thereto have been marked or otherwise drawn to our attention;

 

2.3the factual representations made in the documents reviewed by us are accurate and complete in all respects;

 

2.4each director of the Company (and any alternate director) has disclosed to each other director any interest of that director (or alternate director) in the transactions contemplated by the Prospectus in accordance with the M&A;

 

2.5the Resolutions were duly passed, are in full force and effect and have not been amended, varied, revoked or superseded in any respect;

 

2.6none of our opinions will be affected by the laws or public policy of any foreign jurisdiction;

 

2.7the directors of the Company have not exceeded any applicable allotment authority conferred on the directors by the shareholders;

 

2.8the Prospectus is valid and binding under the laws of the United States of America and the Prospectus has been duly filed with the Commission;

 

2.9the Company Records were, when reviewed by us, and remain at the date of this opinion accurate and complete;

 

2.10there is nothing under any law (other than the laws of the Cayman Islands) which would or might affect the opinions set out below;

 

2.11upon issue of each Offer Share, the Company will receive in full the consideration for which the Company agreed to issue such Offer Share, which shall be equal to at least the par value thereof; and

 

2.12no monies paid to or for the account of any party in respect of the Warrants or the Offer Shares represent, or will represent, proceeds of criminal conduct or criminal property or terrorist property (as defined in the Proceeds of Crime Act (as amended) of the Cayman Islands and the Terrorism Act (as amended) of the Cayman Islands, respectively) and none of the parties to the Securities Purchase Agreement is acting or will act, in relation to the transactions contemplated by the Securities Purchase Agreement, in a manner inconsistent with sanctions imposed by Cayman Islands authorities, or United Nations or United Kingdom sanctions or measures extended by statutory instrument to the Cayman Islands by orders of His Majesty in Council.

 

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3.Opinion

 

Based upon the foregoing and subject to the qualifications and limitations set out below and having regard to such legal considerations as we deem relevant, we are of the opinion that:

 

3.1Status: the Company is incorporated under the Companies Act (as amended) of the Cayman Islands (the Companies Act), validly exists under the laws of the Cayman Islands as an exempted company and is in good standing with the Registrar.

 

3.2Authorised share capital: based solely on our review of the M&A, the authorised share capital of the Company is US$37,500,000 divided into 800,000,000,000 class A ordinary shares of a par value of US$0.0000375 each and 200,000,000,000 class B ordinary shares of a par value of US$0.0000375 each.

 

3.3Issue of Offer Shares: the issue and allotment of the Offer Shares have been duly authorised and when allotted, issued and paid for as contemplated in the Prospectus and the Securities Purchase Agreement, the Offer Shares will be legally issued and allotted, fully paid and non-assessable. As a matter of Cayman Islands law, a share is only issued when it has been entered in the register of members (shareholders).

 

3.4Warrants: The issue of the Warrants as contemplated by the Prospectus and the Securities Purchase Agreement have been duly authorised.

 

3.5Issue of Warrant Shares: The issue and allotment of the Warrant Shares as contemplated by the Prospectus and the Securities Purchase Agreement have been duly authorised and, when allotted, issued and paid for in accordance with the terms of the Warrants, the Warrant Shares will be legally issued and allotted, fully paid and non-assessable. As a matter of Cayman Islands law, a share is only issued when it has been entered in the register of members (shareholders).

 

4.Qualifications and limitations

 

This opinion is subject to the following qualifications and limitations:

 

4.1This opinion:

 

(a)is limited to the matters expressly stated in it;

 

(b)is given only as to, and based on, circumstances and matters of fact existing and known to us on the date of this opinion; and

 

(c)only relates to the laws of the Cayman Islands which are in force on the date of this opinion.

 

4.2We have made no investigation of, and express no opinion with respect to, the laws of any jurisdiction other than the Cayman Islands or the effect of any document under those laws. In particular, we express no opinion as to the meaning or effect of any foreign statutes referred to in any document referred to in this opinion. For the purposes of this opinion, we have only examined the documents listed in paragraph 1 above. We have not examined any term or document incorporated by reference, or otherwise referred to, whether in whole or part, in any document and we offer no opinion on any such term or document.

 

4.3Under Cayman Islands law, the register of members (shareholders) is prima facie evidence of title to shares and this register would not necessarily record a third party interest in such shares. However, there are certain limited circumstances where an application may be made to a Cayman Islands court for a determination on whether the register of members reflects the correct legal position. Further, the Cayman Islands court has the power to order that the register of members maintained by a company should be rectified where it considers that the register of members does not reflect the correct legal position. As far as we are aware, such applications are rarely made in the Cayman Islands and for the purposes of the opinion given in paragraph 3.3, there are no circumstances or matters of fact known to us on the date of this opinion which would properly form the basis for an application for an order for rectification of the register of members of the Company, but if such an application were made in respect of the Offer Shares, then the validity of such shares may be subject to re-examination by a Cayman Islands court.

 

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4.4Under Cayman Islands law, good standing means only that, as of the date of issue of the Certificate of Good Standing, the Company has paid all fees and penalties under the Companies Act and is not, to the Registrar’s knowledge, in default under the Companies Act. To maintain the Company in good standing, the Company:

 

(a)must pay all fees and penalties under the Companies Act; and

 

(b)must not be, to the Registrar’s knowledge, in default under the Companies Act.

 

4.5In this opinion the phrase non-assessable means, with respect to a share in the Company, that a member shall not, solely by virtue of its status as a member, be liable for additional assessments or calls on the share by the Company or its creditors (except in exceptional circumstances and subject to the Company’s memorandum and articles of association, such as involving fraud, the establishment of an agency relationship or an illegal or improper purpose or other circumstances in which a court may be prepared to pierce or lift the corporate veil).

 

5.Governing law

 

This opinion and any non-contractual obligations arising out of it, are governed by, and to be interpreted in accordance with, laws in force in the Cayman Islands on the date of this opinion.

 

6.Consent

 

We hereby consent to the filing of this opinion as an exhibit to the Prospectus. In giving such consent, we do not hereby admit that we come within the category of persons whose consent is required under Section 7 of the U.S. Securities Act of 1933, as amended, or the Rules and Regulations of the Commission promulgated thereunder.

 

Yours faithfully

 

/s/ Mourant Ozannes (Cayman) LLP

 

Mourant Ozannes (Cayman) LLP

 

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