Sigma Lithium Announces J. P. Morgan Initiated Equity Research Coverage with "Overweight" Rating Based on a Brownfield Growth Theme

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.

J. P. Morgan is also constructive on the lithium market, seeing a persistent industry deficit ahead, underpinning the extended structural runway for the Company to grow.