First Phosphate Corp.

08/24/2026 | Press release | Distributed by Public on 08/24/2026 06:09

First Phosphate Files NI 43-101 Technical Report for Updated Mineral Resource Estimate for Bégin-Lamarche Igneous Phosphate Deposit (Form 6-K)

Video available at: https://www.youtube.com/watch?v=4TV4WoC_Jhc&feature=youtu.be

Qualified Person

The Qualified Person, independent of the issuer, responsible for estimating the Mineral Resources of the Begin-Lamarche Property, within the meaning of NI 43-101, is Mr. Antoine Yassa, P.Geo., of the firm P&E Mining Consultants Inc. Mr. Yassa has read this press release and confirms that the scientific and technical information in this press release for accuracy and compliance with NI 43-101.

The scientific and technical disclosure for First Phosphate included in this News Release have been reviewed and approved by Steeve Lavoie, P.Geo. Mr. Lavoie is Chief Geologist of the Company and a Qualified Person under National Instrument 43-101 Standards of Disclosure of Mineral Projects ("NI 43-101").

About First Phosphate Corp

First Phosphate (NASDAQ: PHOS) (CSE: PHOS) (OTCQX: FRSPF) (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. Target markets include energy storage, data centers, robotics, mobility, and national security. First Phosphate's flagship Bégin-Lamarche property, located in Saguenay-Lac-Saint-Jean, Québec, Canada, represents a rare North American igneous phosphate resource producing high-purity phosphate characterized by very low levels of impurities.

-30-

For additional information, please contact:

Steeve Lavoie

Chief Geologist

Tel: +1 (418) 815-5416

Investor Relations: https://firstphosphate.com/investors

General Inquiries: https://firstphosphate.com/contact

Website: www.FirstPhosphate.com

Follow First Phosphate:

X: https://twitter.com/FirstPhosphate

LinkedIn: https://www.linkedin.com/company/first-phosphate/

First Phosphate Corp. published this content on August 24, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on August 24, 2026 at 12:09 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]