First Phosphate flags peer-reviewed study on Bégin-Lamarche phosphate deposit, citing ~40% P2O5 concentrate potential

• First Phosphate reported a peer-reviewed study on its Bégin-Lamarche igneous phosphate deposit published in Ore Geology Reviews.
• Testing cited in the study indicated phosphate concentrate around 40% P₂O₅, supporting potential production of purified phosphoric acid for LFP batteries.
• Geochemical results showed low chlorine and other deleterious trace elements, positioning the deposit as a potential high-purity North American phosphate feedstock.
• Study flagged near-surface, thicker phosphate layers as supportive of potential open-pit mining scenarios, subject to further engineering and mine planning.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. First Phosphate Corp. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001753926-26-001855), on September 24, 2026, and is solely responsible for the information contained therein.