Ms. Anna Hartley reports

SIGMA LITHIUM TO RELEASE 2Q 26 EARNINGS RESULTS ON AUG 14; EXCEEDED 1H 26 PRODUCTION TARGET

Sigma Lithium Corp. will release its second quarter 2026 earnings results before the market opens on Friday, Aug. 14, 2026.

As announced on July 9, 2026, Sigma Lithium exceeded by 6 per cent its production guidance for the second quarter of 2026, delivering 35,000 tonnes of high-grade lithium concentrate. Production for the first half of 2026 at 58,000 tonnes of lithium concentrate products was above target. This performance was a result of the successful execution by Sigma Lithium of a comprehensive mining upgrade, following the primarization of its mining operations.

Conference call

The company will hold a conference call to discuss its second quarter 2026 earnings results shortly after, on Friday, Aug. 14, 2026, at 8:30 a.m. EST. Access to the call will be available via webcast. A link to the webcast can be found on Sigma Lithium's website.

Webcast details

Event title:  Sigma Lithium second quarter 2026 earnings results call

Event date:  Aug. 14, 2026

Start time:  8:30 a.m. EST

About Sigma Lithium Corp.

Sigma Lithium is the largest producer of lithium oxide concentrate in the Americas (1) and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security.

The company runs one of the world's largest lithium production sites -- the fifth-largest industrial mineral complex for lithium oxide concentrate -- at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The company's cleantech industrial plant combines the reuse of 100 per cent of water, zero use of toxic chemicals, zero tailings and the use of 100-per-cent-renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time.

Sigma Lithium currently has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000 to 40,000 tonnes of LCE) at its mine and state-of-the-art cleantech industrial plant. The company has initiated a phase 2 expansion designed to close to double annual production capacity to 520,000 tonnes and plans a phase 3 expansion to increase this further to 770,000 tonnes.

(1) U.S. Geological Survey (USGS).

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