First Phosphate closes final tranche of oversubscribed placement

Saguenay-Lac-Saint-Jean, Québec--(Newsfile Corp. - July 13, 2026) - First Phosphate Corp.(CSE: PHOS) (OTCQX: FRSPF) (OTCQX ADR: FPHOY) (FSE: KD0) (" First Phosphate " or the " Company ") is pleased to announce that, on July 10, 2026, it closed the final tranche of its non-brokered private placement financing (the " Offering "), as further described in the Company's news releases dated May 28, 2026 and June 15, 2026. In aggregate, under the two tranches of the Offering, the Company has raised gross proceeds of $17,698,290 through the issuance of 7,238,070 Flow-Through Shares for gross proceeds of $14,476,140, and through the issuance of 1,611,075 Hard Dollar Units for gross proceeds of $3,222,150. Under this tranche of the financing, the Company raised a total of $2,277,650 through the issuance of 960,500 Flow-Through Shares for gross proceeds of $1,921,000 and 178,325 Hard Dollar Units, comprised of 178,325 Common Shares and 178,325 Warrants, for gross proceeds of $356,650.

Together with this Offering, and since June 2022, the Company has raised approximately $80.2 million in 11 management-led non-brokered private-placement financings and from funds received from option and warrant exercise. In connection with the current tranche of the Offering, the Company paid $12,000 in cash finder's fees, issued 8,040 compensation Common Shares at a deemed price of $2.00 per common share (each a "Compensation Share"), and issued 14,040 Compensation Warrants. In aggregate between the two tranches, the Company paid $168,880 in cash finder's fees, issued 330,960 Compensation Shares and issued 424,400 Compensation Warrants.

All securities issued under the Offering are subject to a four-month and one day statutory hold period in accordance with applicable securities laws. The Company intends to use the proceeds from the Offering as disclosed in the Company's press release dated May 28, 2026. Capitalized terms used in this news release and not defined herein have the meanings given to them in the Company's news release dated May 28, 2026.

The Company may close another tranche of the Offering at its discretion subject to the Policies of the Canadian Securities Exchange. Board Appointment The Company is pleased to announce the return of Peter Kent to its board of directors effective July 10, 2026. Mr. Kent has been instrumental in the development of the Company having previously served as President, as a director and as an advisor to the Company.

All existing directors will also remain on the Board. Audit Committee Changes The Company has restructured its Audit Committee in connection with Mr. Kent's appointment to the Board with Mr. Kent replacing John Passalacqua on the Audit Committee. The Audit Committee now consists of Laurence W. Zeifman (chair), Peter J. F. Nicholson, and Mr. Kent.

RSU and Option Grant Mr. Kent has been granted: (i) 51,134 restricted share units with 11,134 vesting on August 31, 2026 and 40,000 vesting on February 28, 2027; and (ii) 300,000 incentive stock options with each option exercisable for one common share of the Company at $2.00 until December 29, 2028. The options shall vest in four tranches with 25% vesting on each of January 10, 2027, July 10, 2027, January 10, 2028 and July 10, 2028. About First Phosphate Corp. First Phosphate (CSE: PHOS) (OTCQX: FRSPF) (OTCQX ADR: FPHOY) (FSE: KD0) is a mineral exploration and development and clean technology company dedicated to building and reshoring a vertically integrated mine-to-market supply chain for the production of LFP batteries in North America.