Sigma Lithium COO steps down in new leadership shakeup, shares dive 

Energy

Reuters reported exclusively on Thursday that Sigma Lithium’s chief operating officer left the company last month, sending shares of the miner 7% lower amid its latest leadership shakeup. Sigma on Friday confirmed the executive’s departure. The story followed an exclusive report the week before on a mining rights dispute involving the husband-and-wife pair who ran the company together until earlier this year. 

Market Impact

Sigma Lithium (SGML.V) Chief Operating Officer Brian Talbot left the company at the end of last month, he told Reuters on Thursday, sending shares of the Vancouver-based miner tumbling.