
Sigma Provides an Update on Engineering and Construction Contract for its Grota do Cirilo Project and 2020 First Quarter Results
VANCOUVER, British Columbia, June 15, 2020 (GLOBE NEWSWIRE) -- SIGMA Lithium Resources Corporation (“Sigma” or the “Company”) (TSX-V: SGMA) (OTC- QB: SGMLF) is pleased to announce the successful completion of the first phase of early contractor involvement …