Sigma Lithium Resources CorpBrazilian federal court injunction suspends environmental permits and mining operations at Sigma's only producing mine, Grota do Cirilo.

Sigma Lithium shares fell nearly 12.0% in premarket trading after a Brazilian federal court ordered the suspension of environmental permits and mining operations at its Grota do Cirilo complex in Minas Gerais. The injunction, issued by Judge Antonio Lucio Tulio de Oliveira Barbosa, stems from a civil lawsuit by the Federation of Quilombola Communities of Minas Gerais, which argues that the mine lies within an 8-kilometre consultation zone for the Baú Quilombola Community. The court also barred state regulators from issuing new permits and nullified an August agreement that had allowed operations to resume after a July embargo. This marks the third operational halt at Grota do Cirilo in four months, and since it is Sigma's only producing mine with a nameplate capacity of about 330,000 tonnes of lithium oxide concentrate annually, the suspension directly impacts production. The company's shares fell during a broader market decline, with the S&P 500 down 0.3%, the Dow Jones down 0.8%, and the Nasdaq down 0.1%.
Sigma Lithium Resources CorpBrazilian federal court injunction suspends environmental permits and mining operations at Sigma's only producing mine, Grota do Cirilo.