Sigma Lithium's 3Q 25 Results: Increase in Revenues and Cash Position

HIGHLIGHTS

• Sigma Lithium net revenue increased by 69% QoQ and 36% YoY, as it commercially partnered with its clients and leaned on their balance sheets: efficiently navigated lithium price fluctuations.
• Generated US$ 24 million from final price settlements of sales concluded by 3Q25, with an additional cash generation of approximately US$ of approximately US$ 4 million expected from incremental settlements.
• Additionally, US$ 33 million is expected from the sale of 950,000 tonnes of high purity lithium materials ("middlings") that can be reprocessed by clients.
• Mining operations are expected to restart by the end of November and achieve a full ramp-up by 1Q26 with upgraded equipment leased directly from manufacturers at low rates and directly managed and operated by Sigma Lithium.
• Maintained financial discipline and continued to deleverage: short term (high interest) trade finance debt was decreased by 48% during the year till Nov 2025

Conference Call Information

The Company will hold a conference call to discuss its financial results for the second quarter of 2025 at 8:30 a.m. ET on Friday, November 14, 2025. Register for the call at https://ir.sigmalithiumcorp.com/events

São Paulo, Brazil--(Newsfile Corp. - November 14, 2025) - Sigma Lithium Corporation (TSXV: SGML) (NASDAQ: SGML) (BVMF: S2GM34), a leading global lithium producer dedicated to powering the next generation of batteries for electric vehicles and energy storage systems with socially and environmentally sustainable lithium concentrate, reports its results for the third quarter ended September 30, 2025.

SUMMARY OF OPERATIONAL AND FINANCIAL METRICS

Category	Unit	3Q25	2Q25	% QoQ	3Q24	% YoY
Production Volume	Kt	44.0	68.4	-36%	60.2	-27%
Sales Volume	Kt	48.6	40.4	21%	57.5	-15%
Average Net Realised Price	US$/t	586	419	40%	364	61%
Net Revenues	US$ M	28.5	16.9	69%	20.9	36%
CIF Cash Cost + Royalties	US$/t	543	442	23%	513	6%
EBITDA	US$ M	-6.2	-17.1	-64%	-11.4	-46%
Cash and Cash Equivalents	US$ M	6.1	15.1	-60%	65.6	-91%
Trade Finance	US$ M	37	43	-14%	59	-37%
Total Debt	US$ M	161.9	167	-3%	181.2	-11%