Critical mineral development: Grid Metals promotes southeast Manitoba cesium deposit

Grid Metals, a Toronto-based exploration company, has discovered what it claims is the second-largest cesium deposit to be developed in the Western world. The deposit is located at the Falcon West property, 130 kilometres east of Winnipeg, Manitoba. Cesium is a rare element used in various sectors, including defense, solar panels, internet and phone networks, and GPS satellites. It has been deemed a critical mineral by both the Canadian and United States governments.

Grid Metals president Robin Dunbar revealed that the deposit, found during drilling in 2025, contains about 1,300 tonnes of cesium within 50,000 tonnes of rock. The company estimates that the mineral holds the equivalent of roughly half of one year's global supply. Dunbar added that the company plans to submit an environmental act licence by the end of 2026 and expects to discuss pricing with customers following metallurgy studies.

The proposed project requires consent from the Sagkeeng First Nation, who traditionally inhabit the land. While the two parties have had a positive relationship for over three and a half years, details about environmental concerns and economic benefits still need to be finalized. Cesium isn't traded in a quoted market like gold or copper. Grid Metals would negotiate pricing with customers after conducting metallurgy studies.

The project's potential impact on Manitoba is significant, according to Renee Greyeyes, CEO of the Manitoba Prospectors and Developers Association. She believes the project could be "something big" and an opportunity for Manitoba to contribute to a more reliable supply of critical minerals. Grid Metals has partnered with Avenir Minerals, a subsidiary of Agnico Eagle Mines Ltd., a major gold producer, which holds a 15% interest in the project. The site is accessible via road, located 500 metres north of the Trans-Canada Highway.