Sigma, a leader in AI applications for business, today announced its expansion into Asia Pacific and Japan (APJ) with the ...

By Fabio Teixeira RIO DE JANEIRO, Feb 3 (Reuters) - Sigma Lithium's waste piles at a Brazilian mine offer no "imminent risk" and the country's mining regulator saw no need to shut them down during a ...

Sigma's bokeh master is a hefty and pricey bit of glass, but it can shoot some of the dreamiest portraits you'll see ...

Sigma Lithium said it resumed mining activities at its Mine 1 in Vale do Jequitinhonha in Brazil, concluding the restructuring of mining operations aimed at increasing operating efficiency.

The future continues to look very bright for the company's material of choice.

ALT5 Sigma Corporation has received board authorization for a stock buyback program worth up to $100 million and entered into ...

Is what's good for lithium prices good for all lithium producers -- or only Albemarle?