Case Lake confirmed as the world’s fourth largest cesium resource

Major Highlights

• The maiden Inferred MRE of 13 000 t grading 2.40% Cs2O at the West Joe dykes within the Case Lake Cesium Project represents the world’s fourth only hard-rock cesium resource.
• Additional exploration target of 11 000 – 15 000 t of Cs2O identified at the West Joe dykes.
• 17 untested targets with pollucite-bearing pegmatite dykes, outside of the West Joe dykes and within the Case Lake Cesium Project, offer excellent potential to expand the resource profile.
• The MRE covers just one of eight pollucite-bearing pegmatite dykes, based on 7264 m of drilling from 113 drill holes conducted in 2018, 2022, and 2024.
• Excellent infrastructure access in the Timmins-Cochrane region of the Abitibi, with existing forestry trails, proximity to rail at Cochrane, powerlines, and major ports in Montreal for export to key markets.
• The MRE establishes the Case Lake Cesium Project as a globally significant cesium source and will underpin its continued development.
• Strategically located in North America, the project supports critical mineral security and aligns with growing global demand.

Haydn Daxter, CEO of Power Metals, commented:

“The announcement of Power Metals first NI 43-101 Mineral Resource Estimate for the Case Lake Cesium Project signals a significant milestone for the Company and Ontario in the development of critical minerals in Canada. With the estimated 13 000 t at a grade of 2.40% Cs2O based on only 7264 m of drilling, the Case Lake Project is the world’s fourth hard-rock cesium deposit. The majority of the pollucite bearing pegmatites remain unconstrained and open to an exceptional potential of further growth as represented with the current exploration target at West Joe.”

Read the article online at: https://www.globalminingreview.com/finance-business/09062025/case-lake-confirmed-as-the-worlds-fourth-largest-cesium-resource/