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List of All Articles with Tag 'sigma'

Exclusive-Sigma Lithium's former co-CEO fired for trading in blackout period
Exclusive-Sigma Lithium's former co-CEO fired for trading in blackout period
By Fabio Teixeira RIO DE JANEIRO The former co-CEO of Sigma Lithium, a leader in Brazil's budding lithium
2023-11-23 05:24
Sigma Lithium confirms resignation of COO, citing health reasons
Sigma Lithium confirms resignation of COO, citing health reasons
By Fabio Teixeira RIO DE JANEIRO Sigma Lithium on Friday said its Chief Operating Officer Brian Talbot left
2023-10-07 02:50
Exclusive-Sigma Lithium COO steps down in latest leadership shakeup
Exclusive-Sigma Lithium COO steps down in latest leadership shakeup
By Fabio Teixeira RIO DE JANEIRO Sigma Lithium Chief Operating Officer Brian Talbot left the company at the
2023-10-05 20:20
Sigma Lithium questions reporting on Brazil mineral rights 'injunction'
Sigma Lithium questions reporting on Brazil mineral rights 'injunction'
By Fabio Teixeira RIO DE JANEIRO Sigma Lithium on Friday challenged a Reuters report that a Brazilian court
2023-09-30 03:17
Brazil mineral rights dispute casts shadow on Sigma Lithium expansion
Brazil mineral rights dispute casts shadow on Sigma Lithium expansion
By Fabio Teixeira RIO DE JANEIRO A Brazilian court injunction is halting the sale or mining of two
2023-09-29 04:16
Sigma Lithium to explore alternatives after proposals for miner, Brazil unit
Sigma Lithium to explore alternatives after proposals for miner, Brazil unit
Miner Sigma Lithium said on Wednesday it is evaluating strategic alternatives for the whole company, including its Brazilian
2023-09-13 19:25
Sigma Lithium, eyeing buyout, sues ex-CEO and daughter-in-law over trade secrets
Sigma Lithium, eyeing buyout, sues ex-CEO and daughter-in-law over trade secrets
By Jonathan Stempel NEW YORK Sigma Lithium, which produces metal used in electric vehicle batteries, has sued a
2023-08-23 00:57