Widest and Highest-Grade Caesium Intercepts to Date at Vega including 28.0 m at 8.05% Cs2O and 2.2 m at 26.48% Cs2O

The February 3, 2026, news release reports the widest and highest-grade caesium intercepts to date at the Vega Zone within the Shaakichiuwaanaan Property. Significant drill results from the 2025 campaign include: - Hole CV25-948: 28.0 m at 8.05% Cs2O (including 116.5m to 144.5m). - Hole CV25-1006: 5.5 m at 14.83% Cs2O, including a high-grade core of 2.2 m at 26.48% Cs2O. - Peak assay sample: 29.79% Cs2O. - Footprint Expansion: Mineralization has been expanded at the Vega and Rigel zones, and a new high-grade zone named "Helios" has been confirmed. - Program Status: 8,596 meters of caesium assays have been reported, with 1,176 meters (7 holes) still pending.

This news is Material - Positive and serves as a critical valuation "booster" for the project's overall economics. - Economic Integration: The lithium-only Feasibility Study (October 2025) showed an after-tax IRR of 18.1%. While positive, an 18% IRR for a project with a $1.98 billion CAD capital cost is considered "tight" by institutional standards. The addition of high-grade caesium—a rare and high-value metal—as a by-product or co-product is expected to significantly improve the NPV and IRR in the upcoming H2 2026 revised study. - Resource Dominance: PMET is positioning Shaakichiuwaanaan as the world’s largest pollucite-hosted caesium deposit. Given that global supply is extremely constrained (historical mines in Zimbabwe and Australia are exhausted), PMET is moving from a "lithium play" to a "strategic critical minerals play." - Strategic Valuation: High-grade caesium metal trades at prices comparable to gold in refined form. Intercepts of 26-29% Cs2O are exceptionally rare and suggest simple, low-cost processing (XRT ore sorting) as demonstrated in previous metallurgical news.

PMET Resources (formerly Patriot Battery Metals) owns 100% of the Shaakichiuwaanaan Project in the James Bay region of Quebec. - Flagship Project: Shaakichiuwaanaan is the largest lithium pegmatite resource in the Americas and top 10 globally. - Resource: Consolidated Indicated Resource of 108.0 Mt at 1.40% Li2O and Inferred Resource of 33.4 Mt at 1.33% Li2O. - Strategy: Staged development targeting 800ktpa of spodumene concentrate. The project is unique due to its size and the presence of significant caesium, tantalum, and gallium enrichment.