When did First Phosphate report the updated Mineral Resource Estimate?

First Phosphate reported the updated Mineral Resource Estimate on May 26, 2026.

What is the measured pit-constrained Mineral Resource at First Phosphate’s Bégin-Lamarche Phosphate Deposit?

The measured pit-constrained Mineral Resource is 6.2 Mt @ 7.70% P2O5 (phosphate).

Is First Phosphate’s Bégin-Lamarche Phosphate Deposit open at depth?

Yes, the Deposit remains open at depth.

What apatite concentrate grade and process recovery rate did First Phosphate’s metallurgical test work indicate?

Metallurgical test work indicated an anticipated apatite concentrate grade of 40.4% P2O5 at an 88% process recovery rate. The test work also indicated very low levels of potentially deleterious elements.

Has First Phosphate’s Bégin-Lamarche phosphate material been qualified for lithium iron phosphate battery production?

Yes, the material has been qualified for production of battery-grade phosphoric acid for lithium iron phosphate (“LFP”) batteries, with a conversion ratio of 91.1%.

What infrastructure is located near First Phosphate’s Bégin-Lamarche Phosphate Deposit?

The Deposit is located next to existing road and hydroelectric infrastructure and is 70 km driving distance from the deep-sea Port of Saguenay.

Does First Phosphate have an offtake arrangement for the Bégin-Lamarche Phosphate Deposit?

The Deposit benefits from definitive, long-term, partially prepaid offtake from an existing, creditworthy partner.

Why is apatite relevant to First Phosphate’s announcement?

Apatite, described in the source as phosphorus and phosphate, is listed on the critical minerals lists of Québec, Canada, the United States and the European Union.

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First Phosphate Reports Updated Bégin-Lamarche Mineral Resource Estimate

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First Phosphate Corp

CSE:PHOS
FSE:KD0
NASDAQ:PHOS
OTCQX:FRSPF

First Phosphate Reports Updated Bégin-Lamarche Mineral Resource Estimate

Published Tuesday, 26 May 2026

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Plain English summaries when First Phosphate Corp announces news.

At a glance

Company: First Phosphate Corp
Listings: CSE:PHOS, FSE:KD0, NASDAQ:PHOS, OTCQX:FRSPF
Announcement type: Exploration results
Published: Tuesday, 26 May 2026
Source announcement: firstphosphate.com

Key figures
Measure	Figure	Compared with
Indicated Mineral Resources	378%	378% increase vs the Company’s Initial MRE dated September 9, 2024
Measured pit-constrained Mineral Resource	6.2 Mt @ 7.70% P2O5 (phosphate)	Not stated
Apatite concentrate grade	40.4% P2O5	Not stated
Process recovery rate	88%	Not stated
Conversion ratio	91.1%	Not stated
Driving distance from the deep-sea Port of Saguenay	70 km	Not stated

Figures are quoted from this announcement and selected automatically.

FAQSIR Generated from this announcement View original release below for safe harbor and regulatory notices

Announcement Summary

First Phosphate reported an updated mineral resource estimate for the Bégin-Lamarche Phosphate Deposit.

The updated estimate reports a 378% increase in Indicated Mineral Resources from September 9, 2024.
Measured pit-constrained Mineral Resource is 6.2 Mt @ 7.70% P2O5 (phosphate).
Test work indicates anticipated apatite concentrate grade: 40.4% P2O5 at 88% process recovery.
The Deposit is 70 km by road from the Port of Saguenay, beside road and hydroelectric infrastructure.

Testing qualified it for battery-grade phosphoric acid production for LFP batteries, with a 91.1% conversion ratio; the Deposit remains open at depth.

Investor FAQs

First Phosphate reported an updated Mineral Resource Estimate (MRE) for the Bégin-Lamarche Phosphate Deposit. The updated MRE includes a 378% increase in Indicated Mineral Resources compared with the company’s Initial MRE dated September 9, 2024.

Source announcement

Company: First Phosphate Corp
Title: First Phosphate Reports Updated Mineral Resource Estimate for Bégin-Lamarche Phosphate Deposit
Published: Tuesday, 26 May 2026
Source site: firstphosphate.com

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FAQSIR's summary and investor FAQs are generated by AI from the text of this announcement alone, without information from other sources.

Figures, forecasts and other claims are the announcement's, not FAQSIR's. FAQSIR does not independently verify them.

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