Exhibit 99.1

Pyrophyte Acquisition Corp. II Announces the Separate Trading of its Class A Ordinary Shares and
Warrants, Commencing on or about September 8, 2025

HOUSTON, TX, Sept. 03, 2025 (GLOBE NEWSWIRE) -- Pyrophyte Acquisition Corp. II (Nasdaq: PAII.U) (the “Company”) announced that holders of the units sold in the Company’s initial public offering of 20,041,150 units, which includes 2,541,150 units issued pursuant to the partial exercise by the underwriters of their overallotment option, completed on July 24, 2025 (the “Offering”), may elect to separately trade the Class A ordinary shares and warrants included in the units commencing on or about September 8, 2025. Any units not separated will continue to trade on the New York Stock Exchange under the symbol “PAII.U,” and each of the Class A ordinary shares and warrants will separately trade on the New York Stock Exchange under the symbols “PAII” and “PAII WS,” respectively. No fractional warrants will be issued upon separation of the units and only whole warrants will trade. Holders of units will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the units into Class A ordinary shares and warrants.

A registration statement relating to the securities was declared effective on July 16, 2025 in accordance with Section 8(a) of the Securities Act of 1933, as amended. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Cautionary Note Concerning Forward-Looking Statements

This press release contains statements that constitute “forward-looking statements,” including with respect to the Company’s search for an initial business combination. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of the Company, including those set forth in the Risk Factors section of the Company’s registration statement for the initial public offering filed with the SEC. Copies are available on the SEC’s website, www.sec.gov. The Company undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.

Contact

Sten Gustafson

President and Chief Financial Officer

Pyrophyte Acquisition Corp. II

sten.gustafson@pyrophytespac.com

Pyrophyte Acquisition Corp. II 8-K