Sigma Lithium Corp

Sigma Lithium Corporation announced that a Court of Appeal Judge in the Court of Justice of Minas Gerais state overturned a local lower court decision. This decision had included the potential for a legal collateral of US$10 million. The ruling was based on robust quantitative environmental data presented by Sigma Lithium, demonstrating low levels of dust, vibrations, and noise, which debunked baseless claims made by local prosecution.

Sigma Lithium filed one year of environmental monitoring data, collected by external experts, demonstrating low levels of dust, vibrations, and noise from its operations. The data shows performance significantly better than Brazilian legal and ABNT/CONAMA standards, with dust levels 350% to 560% below limits. This evidence directly refutes baseless claims made against the company in local Brazilian courts. The company emphasizes its commitment to sustainable mining and its positive social impact, supporting approximately 19,000 livelihoods.

Sigma Lithium Corp. announced its Annual Meeting of Shareholders will be held virtually on June 30, 2026, at 11:00 a.m. Toronto time. Shareholders of record as of May 26, 2026, are eligible to vote. The agenda includes receiving 2025 financial statements, fixing the number of directors at five, electing directors, and appointing Grant Thornton Auditores Independentes Ltda. as auditors. The company also provided detailed instructions for virtual attendance and proxy voting.

Sigma Lithium Corporation is filing a legal appeal against an

Sigma Lithium reported a net income of $11.1 million for the first quarter of 2026, a significant increase from $4.7 million in the prior-year period, despite an 11.2% decrease in net sales revenue to $42.3 million. The company achieved an Adjusted EBITDA margin of 39.5% and reduced total debt by 20.6% year-over-year. Operational highlights include the final phase of mining operations restructuring, which led to the Greentech Industrial Plant operating below full capacity and incurring $7.7 million in idle capacity expenses. Sigma Lithium also secured new offtake agreements totaling 190,500 tonnes of lithium oxide concentrate, including a $96 million working capital revolver and a $50 million advance payment.

Sigma Lithium celebrated 1,010 days without accidents and zero fatalities, while confirming its mining operations are on track to achieve 240,000 tpy lithium oxide concentrate production. The company vehemently denied inaccurate media reports from May 11, 2026, regarding its waste piles, stating that Brazil's mining regulator (ANM) had officially attested to their safety. Sigma Lithium also noted an unusual increase in put options on its shares coinciding with the spread of false information, leading to a 6.5% share price drop on May 11, 2026, and reported a R$10,000 fine from the MLE related to an ongoing administrative inquiry.

Sigma Lithium Corporation announced it will release its first quarter 2026 earnings results before the market opens on Friday, May 15, 2026. Following the release, the company will host a conference call to discuss the results on the same day at 8:30 a.m. EST. A webcast link for the call will be available on Sigma Lithium's investor relations website.