Sigma Lithium Recognized as Sustainability and Cleantech Pioneer at UN-Climate Week in NY Featuring Lithium Oxide Industrialization; Continues to Operate Following Brazil’s Democratic Rule of Law

Toronto, Ontario–(Newsfile Corp. – September 28, 2026) – Sigma Lithium Corporation (NASDAQ: SGML) (ASX: SAU) (TSXV: SGML) (BVMF: S2GM34) (“Sigma Lithium” or the “Company”), the largest producer of industrial-mineral lithium oxide concentrate in the Americas¹ and dedicated to supplying global producers of batteries for energy security with sustainable and traceable lithium materials, announces that:Sigma Lithium Co-Chair, CEO and Vice Presidents (“Senior Leaders”) joined UN-Energy members in…

Source: https://www.newsfilecorp.com/release/316293/Sigma-Lithium-Recognized-as-Sustainability-and-Cleantech-Pioneer-at-UNClimate-Week-in-NY-Featuring-Lithium-Oxide-Industrialization-Continues-to-Operate-Following-Brazils-Democratic-Rule-of-Law