Announcement • Jun 03
Sigma Lithium Files One Year of External Expert Environmental Data Demonstrating Low Levels of Dust, Vibrations, and Noise Sigma Lithium filed one year of external expert environmental data (for the 12 months to May 2026) demonstrating its track record: low levels of dust, vibrations, noise, monitored in four neighbouring communities. Dust: Sigma Lithium operates 560% better than recommended standards for total suspended particles, 350% better for particle size of below 2.5 micrometers. Noise: 95 measurement campaigns conducted during night and day demonstrated compliance with ABNT standards. Vibrations: The level of vibrations measured in terms of velocity measured in millimeters per second against the frequency measured in Hertz were extremely low, barely registering on the seismograph scale, when set against the ABNT limits. The data series externally collected by experts provides transparent, objective evidence of Sigma Lithium's environmental track record. The evidence filed directly refutes baseless and unproven claims against the Company made in local Brazilian courts, currently under appeal at the State Courts in Minas Gerais (Tribunal de Justiça de Minas Gerais). The data points are below the stringent legal limits in Brazil, as well as the established standards of the Brazilian Technical Standards Association ("Associacao Brasileira de Normas Tecnicas" or "ABNT") and Brazil's National Environmental Council ("Conselho Nacional do Meio Ambiente" or "CONAMA"). Tables 1, 2, and 3 show data with respect to the monitoring of dust. Data is presented for the twelve months to May 2026 showing total suspended particles and particle size below 10 and 2.5 micrometers measured in four locations in the community (C1, C2, C3, and C4). The data shows that the levels of dust generated by Sigma Lithium's operations were 350% to 560% below the CONAMA standard limits established for each category. Table 4 shows the level of vibration measured in the twelve months to May 2026 in terms of velocity measured in millimeters per second against the frequency measured in Hertz. The vibrations (marked by "X" in the chart) are extremely low, when set against the ABNT limits shown in the red line. Table 5 shows the results of noise monitoring in the twelve months to May 2026 that measures compliance with ABTN limits in terms of decibels at four locations. The chart includes a data set for daytime monitoring and another for nighttime monitoring. SGML
Live News • May 24
Sigma Lithium Faces Legal Scrutiny and Misinformation Claims as Expansion Funding Secured Sigma Lithium is appealing a Brazilian court ruling that could require its subsidiary to post up to US$10 million as collateral over alleged environmental harm at the Grota do Cirilo project.
The company says Brazilian authorities recently confirmed compliance with environmental rules after inspections and links a roughly 15% share price drop to an online “fake news” campaign that it claims hurt sentiment despite record Q1 earnings.
Pomerantz LLP has opened an investigation into possible securities law violations, while earlier in the year Bank of America downgraded the stock, citing operational and liquidity concerns.
Separately, Sigma Lithium secured a US$100 million collateralized bank guarantee from a major Brazilian bank to fund its Greentech Industrial Plant 2, which is intended to double annual lithium production capacity and is tied to demand from the EV sector.
The mix of environmental litigation, misinformation claims and a securities investigation on one side, and new project financing and capacity expansion on the other, leaves a complex risk-reward profile for the stock.
When assessing Sigma Lithium, you may want to weigh the potential impact of prolonged legal processes and regulatory scrutiny against the company’s ability to execute on its funded growth plans. Reported Earnings • May 18
First quarter 2026 earnings released: EPS: US$0.10 (vs US$0.042 in 1Q 2025) First quarter 2026 results: EPS: US$0.10 (up from US$0.042 in 1Q 2025). Revenue: US$42.3m (down 11% from 1Q 2025). Net income: US$11.1m (up 135% from 1Q 2025). Profit margin: 26% (up from 9.9% in 1Q 2025). The increase in margin was driven by lower expenses. Revenue is forecast to grow 51% p.a. on average during the next 3 years, compared to a 7.4% growth forecast for the Metals and Mining industry in the US. Over the last 3 years on average, earnings per share has increased by 37% per year but the company’s share price has fallen by 25% per year, which means it is significantly lagging earnings.