Brazilian court suspends licenses for Sigma Lithium mine

A Brazilian federal court suspended Sigma Lithium's mining permits for its Grota do Cirilo mine, halting the Lithium Valley project. The ruling requires Sigma to consult the nearby Baú quilombola community and complete an impact study. Sigma disputes the ruling, arguing it operates outside the required distance. The company's shares (SGML) fell 3% on the news, reflecting ongoing legal challenges and market volatility.

A Brazilian court suspended Sigma Mineração SA's environmental licenses, halting lithium extraction at the Grota do Cirilo project. The decision follows a request from a quilombola community questioning the mine's proximity. Sigma disputes the ruling, claiming compliance with regulations. The mine is a significant lithium deposit in Minas Gerais. The court ordered a halt to new licenses pending further review. This follows a previous disruption in July due to alleged violations.

Sigma Lithium (NASDAQ: SGML) began trading on the Australian Securities Exchange (ASX) under the ticker SAU, expanding its global capital markets presence. The listing aims to broaden access to investors in the Asia-Pacific region, where the ASX has a strong pool of sophisticated investors focused on lithium and critical minerals. Sigma Lithium is the largest lithium oxide concentrate producer in the Americas, with plans to increase production capacity to 830,000 tonnes annually.

Sigma Lithium (SGML) began trading on the Australian Securities Exchange (ASX) under the ticker 'SAU' on Sept. 3, 2026. The listing, as a Foreign Exempt Issuer, aims to broaden access to lithium-focused investors. Each CDI represents one common share, facilitating cross-border clearing. The company operates the fifth-largest lithium oxide complex globally, with plans to expand production capacity.

Sigma Lithium (SGML) reported Q2 2026 net sales revenue of $54.7 million, up 223.9% year over year, and a 47.0% adjusted EBITDA margin. Production rose to 35,400 tonnes of lithium oxide concentrate, up 52% quarter over quarter. Management cited a partial mining suspension tied to environmental regulator actions, while raising Plant 1 guidance to 240,000 tonnes and projecting 330,000 tonnes for FY 2027.

Sigma Lithium (NASDAQ:SGML) said it repaid 25% of total debt over the past year and 43% over two years, cutting total debt by about half. Mining and industrial operations were temporarily halted during TAC negotiations with Minas Gerais, with a restart possible within a week to two. It reported $60M received from a $96M offtake prepayment and maintained guidance for 240,000 tons over 12 months.