Federal permitting process progresses and aligns with the Provincial process already underwayMONTREAL, Sept. 3, 2025 /PRNewswire/ -  September 4th, 2025 - Sydney, AustraliaHighlights Figure 1: Shaakichiuwaanaan Property and regional infrastructure. (CNW Group/Patriot Battery Metals Inc.) Permitting of the Shaakichiuwaanaan Project is on schedule and progressing well. The planning phase of the Federal environmental and social impact assessment process is now formally complete, culminating in the Impac ...

Core Viewpoint - Patriot Battery Metals Inc. announced a maiden Mineral Resource Estimate for caesium at the Rigel and Vega zones of its Shaakichiuwaanaan Property, highlighting the significance of this discovery and its implications for the company's future projects [1]. Group 1 - The live investor webinar will be hosted by Ken Brinsden, the Company's President, CEO, and Managing Director, to discuss the caesium discovery and provide updates on the lithium-only Definitive Feasibility Study for CV5 Shaakichiuwaanaan [1]. - Investors and shareholders can submit questions during the webinar or in advance via email to the Investor Relations Manager [2]. - The webinar is scheduled for July 22, 2025, at 8:00 AM Australian Western Standard Time, lasting approximately 45 minutes, with registration available online [3].

Core Insights - The company has confirmed the world's largest pollucite-hosted caesium pegmatite deposit at the Shaakichiuwaanaan Project, with a maiden Mineral Resource Estimate (MRE) for the Rigel and Vega zones [4][8][11] - The total contained caesium content is 30.5 kt Cs2O Indicated and 40.8 kt Cs2O Inferred, highlighting the scale and global significance of the discovery [4][8][11] - The caesium resources are included within the CV13 Pegmatite open-pit resource, which forms part of the company's consolidated MRE for the project [4][8][11] Mineral Resource Estimate - Rigel Caesium Zone: Indicated 163,000 t at 10.25% Cs2O, 1.78% Li2O, and 646 ppm Ta2O5 [11] - Vega Caesium Zone: Indicated 530,000 t at 2.61% Cs2O, 2.23% Li2O, and 172 ppm Ta2O5; Inferred 1,698,000 t at 2.40% Cs2O, 1.81% Li2O, and 245 ppm Ta2O5 [11] - The consolidated MRE includes Indicated 108.0 Mt at 1.40% Li2O, 0.11% Cs2O, and Inferred 33.4 Mt at 1.33% Li2O, 0.21% Cs2O [20] Market Potential - Caesium is a high-value, rare, and critical mineral currently supply constrained, with limited sources supplying the global market [4][17] - The discovery has the potential to be a primary source of supply for global markets, including applications in next-generation terrestrial solar panel technologies [4][17] - The market for caesium compounds is largely opaque, trading through bi-lateral contracts, with caesium carbonate currently trading at approximately US$120/kg and refined caesium metal around US$2,540/oz [16][17] Next Steps - The company is evaluating options to advance and incorporate the caesium opportunity at CV13 as a potential additional saleable product following the completion of the lithium-only Feasibility Study on the CV5 Pegmatite [19][21] - A scoping metallurgical program has commenced to test pollucite recovery using conventional X-ray ore sorting methods [21] - The company remains on track to deliver a maiden Ore Reserve and Feasibility Study for lithium at the CV5 Spodumene Pegmatite in CYQ3-2025 [4][22]