The Tanco Mine, operated by Sinomine Resource Group and one of Canada’s two active lithium mines, is facing significant risks as wildfires continue to rage in southeastern Manitoba. Located near Bernic Lake, northeast of Winnipeg, the mine’s proximity to the town of Lac du Bonnet—where two civilians tragically lost their lives due to the fires—has raised concerns about potential operational disruptions.
As of mid-May 2025, Manitoba is grappling with approximately 100 active wildfires, with five classified as “out of control.” A severe heatwave, with temperatures reaching 37°C in Winnipeg, has exacerbated the situation, leading to the evacuation of around 1,000 residents and the destruction of 28 structures in the Grausdin Point area.
The Tanco Mine, renowned for its production of lithium, caesium, and tantalum, resumed lithium spodumene concentrate production in December 2021 after a decade-long hiatus. This resurgence aligns with the global surge in demand for battery metals. Given its strategic importance in the North American battery supply chain, any disruption to its operations could have far-reaching implications.
Environmental concerns have previously surrounded the mine, particularly regarding proposals to drain Bernic Lake for surface access to cesium deposits. The Manitoba Métis Federation has emphasized the need for sound environmental stewardship and proper consultation with Indigenous communities in light of such proposals.
As wildfires continue to pose threats to critical infrastructure, the situation underscores the vulnerability of essential mineral supply chains to climate-induced disasters. Stakeholders are closely monitoring developments to assess potential impacts on the mining sector and broader economic implications.