Sigma Lithium Marks 1,010 Accident-Free Days and Rebuttal of Waste-Pile Claims as Output Hits Guidance Pace

Claim 55% Off TipRanksUnlock hedge fund-level data and powerful investing tools for smarter, sharper decisions Discover top-performing stock ideas and upgrade to a portfolio of market leaders with Smart Investor Picks Sigma Lithium ( (TSE:SGML) ) has shared an announcement. On May 12, 2026, Sigma Lithium reported that it has achieved 1,010 days without accidents causing lost time and has recorded zero fatalities in its 14-year history, underscoring one of the strongest safety records in the battery materials sector. The company said its mining ramp-up is complete and operations remain on track to meet annual guidance of 240,000 tonnes of lithium oxide concentrate, supported by large-scale equipment, more than 1,000 direct jobs, and cleantech processing designed to reach full circularity and zero mining waste as soon as next quarter. Sigma Lithium also addressed inaccurate media reports from May 11, 2026, firmly denying claims that its waste piles were banned by Brazil’s Ministry of Labor and Employment and stressing that the national mining regulator has issued a technical opinion attesting to the safety of its waste rock piles. Management highlighted that an ongoing labor ministry inquiry and a modest fine of R$10,000 have no material impact on operations, while linking the spread of negative reports to an unusual spike in put option volumes and recent share price volatility, even as the company emphasizes its role as a major regional employer generating about 20,000 direct and indirect jobs in Brazil’s Vale do Jequitinhonha region. The most recent analyst rating on (TSE:SGML) stock is a Buy with a C$17.00 price target. To see the full list of analyst forecasts on Sigma Lithium stock, see the TSE:SGML Stock Forecast page. Spark’s Take on SGML Stock According to Spark, TipRanks’ AI Analyst, SGML is a Neutral. The score is held back primarily by weak and volatile financial performance (revenue contraction, persistent losses, pressured equity and leverage) and limited valuation support due to negative earnings. These are partially offset by strong technical uptrend and a more positive earnings-call outlook highlighting improving cash generation, deleveraging progress, and offtake-backed liquidity planning, though execution and lithium price volatility remain key risks. To see Spark’s full report on SGML stock, click here. More about Sigma Lithium Sigma Lithium is a Canadian-headquartered producer of lithium oxide concentrate, operating one of the world’s largest lithium production sites at its Grota do Cirilo complex in Brazil. The company focuses on supplying environmentally and socially sustainable lithium materials to global battery manufacturers, using a Greentech Industrial Plant that recycles all water, avoids toxic chemicals and tailings dams, and runs entirely on renewable energy, with a current nameplate capacity of 270,000 tonnes per year and a Phase 2 expansion underway to lift capacity toward 520,000 tonnes. Average Trading Volume: 84,420 Technical Sentiment Signal: Buy Current Market Cap: C$3.33B For a thorough assessment of SGML stock, go to TipRanks’ Stock Analysis page.