Sigma Lithium Prices Offering of US$ 125 Million Convertible Bonds Due 2031, Upsized by 25%

HIGHLIGHTS * Sigma Lithium prices US$125 million, 5-year convertible bond offering due 2031, upsized by 25%. * Primary use of net proceeds: repay Senior Secured Debt with Synergy Capital. * Lowers cash interest costs enabling the Company to build operating cash flow: a fixed coupon of 7.00% p.a. replaces a floating coupon of 11.45% p.a. (SOFR, 4.5% + 6.95% p.a.) * Sets a healthy conversion premium of 25% over US$5.21, the Nasdaq closing price on November 2, 2026, resulting in a conversion price of US$6.51, without conversion during the first 12 months. * The convertible bond significantly extends repayment duration to 2031. * Greater financial flexibility for future growth plans by replacing secured borrowing with unsecured financing, with Synergy Capital's security to be released upon repayment. * Significantly reduces short-term debt by approximately 80%, from US$125 million * The successful transaction is a result of the Company's consistent track record of strengthening its balance sheet, demonstrating financial discipline over the last two years: * More than US$90 million in debt repaid since 2Q 24 through cash generation. * Total debt reduced by approximately 40% over two years, to US$125 million on October 21, 2026. * Sigma Lithium has been self-funded since July 2023, without any equity issuance since 2021. * The transaction demonstrates strong investor support for continued execution of Sigma's management strategy and growth plans.