As filed with the Securities and Exchange Commission on August 24, 2026

Registration No. 333-284430

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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POST-EFFECTIVE AMENDMENT NO. 1
TO
FORM F-4

REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

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UNITED HYDROGEN GLOBAL INC.
(Exact name of registrant as specified in its charter)

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Cayman Islands		4931		Not applicable
(State or other jurisdiction of incorporation or organization)		(Primary Standard Industrial Classification Code Number)		(I.R.S. Employer Identification Number)

3rd Floor, Building 3, No. 715 Yingshun Road,
Qingpu District, Shanghai,
The People’s Republic of China, 201799
+86-18294434089
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

___________________________________________

UNITED HYDROGEN GROUP INC.
(Exact name of registrant as specified in its charter)

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Cayman Islands		4931		Not applicable
(State or other jurisdiction of incorporation or organization)		(Primary Standard Industrial Classification Code Number)		(I.R.S. Employer Identification Number)

3rd Floor, Building 3, No. 715 Yingshun Road,
Qingpu District, Shanghai,
The People’s Republic of China, 201799
+86-18294434089
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

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Cogency Global Inc.
122 East 42nd Street, 18th Floor,
New York, NY 10168
(212) 947-7200
(Name, address, including zip code, and telephone number, including area code, of agent for service)

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Copies to:

Meng (Mandy) Lai, Esq.; Mark Li, Esq.
MagStone Law, LLP, 415 S Murphy Ave;
Sunnyvale, CA 94086
(650) 513-2555

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Approximate date of commencement of proposed sale to the public: This Post-Effective Amendment No. 1 deregisters those securities that remain unsold hereunder as of the date hereof.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box: ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). (Check one):

Emerging growth company ☒

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

This Post-Effective Amendment shall hereafter become effective in accordance with the provisions of Section 8(c) of the Securities Act of 1933, as amended.

SCHEDULE A — TABLE OF ADDITIONAL REGISTRANTS

Name		State or Other Jurisdiction of Incorporation or Organization		I.R.S. Employer Identification Number		Address and Telephone Number of Registrant’s Principal Executive Offices
United Hydrogen Group Inc.		Cayman Islands		Not Applicable		16th Floor, Yangtze River Delta Hydrogen Energy Innovation Center, Mingjun Road, Pinghu City, Jiaxing, Zhejiang Province, The People’s Republic of China 314201 +86-18294434089

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this Post-Effective Amendment to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Jiaxing, the People’s Republic of China, on August 24, 2026.

		UNITED HYDROGEN GLOBAL INC.
		By:		/s/ Xia Ma
		Name:		Xia Ma
		Title:		Chief Executive Officer

Pursuant to Rule 478 of the Securities Act of 1933, as amended, no other person is required to sign this Post-Effective Amendment No. 1 to the Registration Statement.