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Sigma Lithium Corporation (SGML) closed at $11.89 in the latest trading session, marking a +1.54% move from the prior day.

Alt5 Sigma told regulators it learned in November its accountant had resigned, but the accountant says he stepped down three months earlier — a fresh discrepancy that marks the second apparently ...

Brazilian inspectors fine Sigma Lithium for using banned waste pile Brazilian labor inspectors have fined Sigma Lithium for depositing waste in a pile that they had shut down because it posed a grave ...