Sigma Lithium Corporation

Sigma Lithium Corp (TSX-V:SGML, NASDAQ:SGML) said JPMorgan has initiated equity research coverage on the company with an "Overweight" rating, citing a persistent industry deficit and an extended structural growth runway for the lithium producer. The bank's North America Metals & Mining team, in a 66-page initiation report, described Sigma Lithium as an "operational de-risking plus brownfield growth" story, saying the company's valuation is "being overly discounted on growth and industry risks.

Toronto, Ontario--(Newsfile Corp. - September 21, 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 J. P. Morgan has initiated equity research coverage on the Company with an "Overweight" rating.

Sigma Lithium Corp (TSX-V:SGML, NASDAQ:SGML) will ring the Nasdaq Closing Bell during New York Climate Week, the second time it has received the honor, recognizing its strategy to build the largest lithium oxide industrial mineral producer in the Americas. The ceremony coincides with the fifth anniversary of Sigma Lithium's Nasdaq listing.

SUSTAINABILITY EXCELLENCE AT NASDAQ Sigma Lithium was once again selected by Nasdaq to ring the closing bell during New York Climate Week in recognition of its pioneer business strategy of building the largest lithium oxide industrial mineral producer in the Americas in combination with one of the highest sustainability standards in critical minerals. The Company's recognition by Nasdaq also demonstrates its environmental and social leadership in critical minerals industrialization and mining, delivering environmental excellence and shared prosperity in Brazil's Lithium Valley.