BofA Upgrades Sigma Lithium After Mining Restart
BofA analyst upgrades Sigma Lithium to Neutral as mining activities resume, reducing timeline risks but liquidity concerns remain.
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US Seeks Global Deal to Stabilize Rare Earth Mineral Prices
The Trump administration plans to build international consensus on rare earth pricing to counter China's market dominance and protect Western refiners from price undercutting.
Sigma Lithium Secures Major Sale Amid Media Controversy
Sigma Lithium sells 100,000 tonnes of lithium fines at premium prices while denying false media reports about operational shutdowns and addressing defamation campaign.
Brazil Shuts Down Sigma Lithium Waste Piles Over Safety Concerns
Brazil's Labor Ministry closes three waste piles at Sigma Lithium's flagship mine, citing safety risks. The shutdown adds pressure to the struggling lithium producer's restart efforts.