Brazil Labor Ministry Upholds Shutdown of Waste Piles at Sigma Lithium Mine
Brazil's Labor Ministry has closed three waste piles at Sigma Lithium's mine in Minas Gerais. This decision cites safety risks and threatens production.
Insights:
On January 15, 2026, the Labor Ministry in BR 
BRissued a final decision to shut down three waste piles at the Grota do Cirilo mine, which is the flagship asset of Sigma Lithium Corporation . Regulatory officials cited grave and imminent safety risks to workers and the local community as the basis for the closure. This move follows the dismissal of an appeal by the company on Thursday, upholding an order originally issued on December 5, 2025. The mine, which produces Lithium , has been inactive since October 2025, and the new restrictions complicate plans to restart operations.
BRissued a final decision to shut down three waste piles at the Grota do Cirilo mine, which is the flagship asset of Sigma Lithium Corporation . Regulatory officials cited grave and imminent safety risks to workers and the local community as the basis for the closure. This move follows the dismissal of an appeal by the company on Thursday, upholding an order originally issued on December 5, 2025. The mine, which produces Lithium , has been inactive since October 2025, and the new restrictions complicate plans to restart operations.
