Sigma Lithium Corporation is a mineral extraction and processing company focused on producing lithium concentrate for the electric vehicle battery supply chain. The company's primary operation is the wholly owned Grota do Cirilo hard-rock lithium mine and processing facility located in Minas Gerais, Brazil. Sigma Lithium is notable for its environmentally focused production methods, which utilize renewable energy, recycled water, and dry-stacked tailings to minimize its ecological footprint. The company produces high-purity lithium oxide concentrate (spodumene) and lithium fines, which are sold to global battery manufacturers and automakers through offtake agreements. Operating through a phased expansion strategy, Sigma Lithium commenced commercial production in 2023 and continues to scale its industrial beneficiation capacity. While headquartered in São Paulo, Brazil, the company is domiciled in Canada and serves as a Tier-1 supplier in the global critical minerals market.
