 Sigma Lithium Corporation said it ended its 2021 financial year with C155.4 million in cash and cash equivalents, giving it enough liquidity to move its Grota do Cirilo project into production. The lithium company said it has fully financed the capital expenditures estimated for the construction of the Phase 1 plant and Phase 1 mine by completing two equity financings in 2021, which raised gross proceeds of C178.7 million. 