Sigma Lithium confirms its mining and industrial operations remain unaffected by a preliminary judicial ruling issued without due process that allegedly suspends environmental licenses. The company states it has not received any legal communication regarding the ruling, which was reportedly issued in Teofilo Otoni over 300km away during a three-day national holiday recess. Sigma Lithium plans to begin its legal defense on September 8 and denies reports that the ruling overrides its recent TAC Agreement with Minas Gerais State Authorities. The company expects to deliver 240,000 tonnes of lithium oxide concentrate within 12 months and 330,000 tonnes in FY 27. Sigma Lithium operates as a producer of industrial-mineral lithium oxide concentrate for the battery supply chain.

Sigma Lithium Corporation announced on September 4, 2026, that it commenced trading on the Australian Securities Exchange (ASX) under the ticker symbol SAU as a Foreign Exempt Issuer. The listing allows local investors to trade CHESS Depositary Interests (CDIs), with each CDI representing one fully paid share of common stock in a 1:1 ratio. This expansion broadens access to sophisticated Asian capital markets and complements existing listings on Nasdaq, TSX Venture Exchange, and B3. Sigma Lithium operates as the largest producer of industrial lithium oxide concentrate in the Americas, running the fifth-largest industrial-mineral lithium production complex at its Grota do Cirilo operation in Brazil.

Sigma Lithium has fully resumed mining and industrial operations at its Grota do Cirilo mine in Brazil following the signing of a Terms for Adjustment of Procedures (TAC) Agreement with the State of Minas Gerais environmental authorities. The agreement resolves regulatory matters dating from 2013 to 2022, requiring capital expenditures of approximately US$1 million for procedural adjustments and fines up to US$540,000. Sigma Lithium maintains it has not misrepresented information or committed wrongdoing regarding the allegations but agreed to widen and gravel access roads for affected houses. The company reaffirms its production guidance to ramp up to 240,000 tonnes of lithium oxide concentrate within 12 months and targets 330,000 tonnes in fiscal year 2027. Additionally, Sigma Lithium has approved the next stage of haulage fleet upgrades with manufacturer SANY, introducing 75-tonne trucks and 98-tonne excavators to increase capacity. The company is a lithium producer operating one of the world's largest lithium oxide concentrate facilities in Brazil.

Sigma Lithium reported Q2 2026 net sales revenue of $54.7 million and a net loss of $2.6 million. The company's mining operations were halted in mid-July pending the closing of a TAC Agreement with the Minas Gerais state government to resolve environmental enforcement issues, including approximately $0.54 million in fines. Net debt decreased by 9% to $125 million, and adjusted EBITDA margin reached a record 47.0%. Board member Eugenio de Zagottis stepped down and was replaced by Katia Abreu. The company operates in the hard rock lithium mining industry.

Sigma Lithium Corporation announced it will report second quarter 2026 earnings results before market open on August 14, 2026, accompanied by a conference call at 8:30 a.m. EST. The company reported that production for the first half of 2026 reached 58,000 tonnes of lithium concentrate products, exceeding targets. Specifically, Q2 2026 production delivered 35,000 tonnes of high-grade lithium concentrate, surpassing guidance by 6%. This operational success followed a comprehensive mining upgrade and the primarization of mining operations at its Grota do Cirilo facility in Brazil. Sigma Lithium Corporation operates in the mining industry, producing lithium oxide concentrate for battery materials.