Sigma Lithium (TSXV:SGML) Increases Mineral Reserves by 40% at Grota do Cirilo Project in Brazil
Source: Sigma Lithium Corporation Sigma Lithium Corporation (TSXV:SGML), a leading global lithium producer, announced yesterday that it has increased its Proven and Probable Mineral Reserves at its 100% owned Grota do Cirilo operation in Vale do …