HIGHLIGHTS

   -- Achieved 68,368t of lithium oxide concentrate in 2Q25, a 38% year-on-year 
      increase and slightly above the quarterly target of 67,500t. 
 
   -- Maintained cost under control and below the target over previous quarter 
      driven by economies of scale, stable plant gate costs, and efficient 
      logistics: 
 
          -- CIF China cash operating costs of $442/t in 2Q25, 12% below target 
             of $500/t. 
 
          -- All-in sustaining cash costs (AISC) totaled $594/t in 2Q25, 10% 
             below target of $660/t. 
 
   -- Reported gross sales revenue -- lithium oxide concentrate of $21.1 
      million, 60.3% decrease compared to 2Q24, reflecting a deliberate 
      strategy to withhold product during intense price volatility, preserving 
      pricing power and protecting long-term margins. 
 
   -- Advanced Plant 2 construction, completed key site preparation activities 
      and advanced procurement strategy for critical equipment, keeping the 
      project on track to double nameplate capacity to 520,000 tonnes per 
      year. 

Conference Call Information

The Company will hold a conference call to discuss its financial results for the second quarter of 2025 at 8:00 a.m. ET on Friday, August 15, 2025. To register for the call, please proceed through the following link Register here.

SÃO PAULO, Aug. 15, 2025 /CNW/ -- Sigma Lithium Corporation (TSXV/NASDAQ: SGML, BVMF: S2GM34), a leading global lithium producer dedicated to powering the next generation of electric vehicles with carbon neutral, socially and environmentally sustainable lithium concentrate, reports its results for the second quarter ended June 30, 2025.

Ana Cabral, Co-Chairperson and CEO, commented: "Our second-quarter performance highlights the strength of Sigma Lithium's low-cost, large-scale operations and disciplined commercial strategy. We managed to further decrease our costs consolidating our operational resilience. We maintained production cadence at 68kt and are comfortably on track to deliver on our annual production target of 270kt while preserving pricing power in a volatile market --while upholding some of the highest health and safety standards in the battery materials supply chain: we celebrated two years without accidents or fatalities. These results demonstrate our ability to execute consistently, create value through market cycles, and reinforce our leading position as a global integrated industrial and mineral lithium producer".

Table 1. Summary of Key Operational and Financial Metrics

 
Production and                                         Var.               Var. 
 Sales                    Unit      2Q25      2Q24   Y/Y(%)      1Q25   Q/Q(%) 
Production 
 Volumes                tonnes    68,368    49,389     38 %    68,308      0 % 
Sales Volumes           tonnes    40,350    52,572    -23 %    61,584    -34 % 
Average grade of 
 shipped product  % of Li(2) O       5.2       5.5     -0 %       5.0      0 % 
COGS                       $/t       584       566      3 %       556      5 % 
Operating Cash 
 Cost at Plant 
 Gate (2)                  $/t       348       364     -4 %       349     -0 % 
Operating Cash 
 Cost CIF China 
 (2)                       $/t       442       515    -14 %       458     -3 % 
All-in 
 Sustaining Cash 
 Cost (2)                  $/t       594       779    -24 %       622     -4 % 
Financial                                              Var.               Var. 
 Performance              Unit      2Q25      2Q24   Y/Y(%)      1Q25   Q/Q(%) 
Sales Revenue(3)        $ 000s    21,148    56,311    -62 %    47,833    -56 % 
COGS                    $ 000s  (23,564)  (29,766)    -20 %  (34,217)    -31 % 
Average Revenue 
 per Tonne (3)             $/t       524      1071    -51 %       777    -32 % 
EBITDA(4)               $ 000s  (16,876)     8,639   -295 %    10,010   -268 % 
Stock-based 
 compensation           $ 000s       200     1,943   -110 %     1,416   -114 % 
Adjusted 
 EBITDA(4)              $ 000s  (17,077)    10,582   -261 %    11,426   -249 % 
Net Income              $ 000s  (18,857)  (10,848)     73 %     4,728   -499 % 
Cash and Cash 
 Equivalents, at 
 the end of the 
 respective 
 period                 $ 000s    15,113    75,330    -80 %    31,111    -51 % 
 

Revenues and Production

Sigma Lithium reported revenues of $21.1 million for 2Q25, representing a 62% year-on-year decrease and a 56% decrease over 1Q25 revenues. Sales volumes totaled 40,350 tonnes in 2Q25, down 23% from 2Q24 and down 34% compared to 1Q25, primarily due to our disciplined commercial strategy, under which we temporarily withheld product from the market during periods of intense price volatility to preserve pricing power and protect long-term margins.

The Company reported production volumes of 68,368 tonnes in 2Q25, slightly higher than quarter production target of 67,500 tonnes, and 38% higher compared to 2Q24. The Company expects its FY25 production to reach 270,000 tonnes.

Costs

The Company reported a cost of sales of $23.6 million for 2Q25, reflecting a 20% decrease compared to 2Q24 and a 31% decrease compared to 1Q25. On a per-tonne basis, the cost of sales averaged $584 per tonne of productsold, which represents a 3% increase year-over-year and a 5% increase from 1Q25.

The Company's operating cash costs remain among the lowest in the industry, with CIF China cash operating costs averaging $442/t. This represents a 3% decrease from $458/t in 1Q25 and remains 12% below the 2025 cost target of $500/t. This reduction was supported by economies of scale from higher production volumes, stable plant gate costs, efficient freight and port operations, and lower CIF charges -- achieved despite the recognition of ocean freight expenses related to prior-quarter shipments.

All-in sustaining cost (AISC) decreased by approximately 4% to an average of $594/t, remaining below the full-year target of $660/t.

Balance Sheet & Liquidity

As of June 30, 2025, the Company's cash and cash equivalents totaled $31.1 million, representing a 32% decrease from $45.9 million as of December 31, 2024, primarily driven by operational costs and expenses, as well as the deleveraging of trade finance lines.

The Company reduced its short-term trade finance by approximately $6 million in 2Q25, bringing the balance to $45.5 million as of June 30, 2025. The total amount of short and long-term debts was $166.9 million as of June 30, 2025. The net interest paid in 2Q25 totaled $0.8 million or approximately $12/t of quarterly production.

The Company is evaluating potential long-term prepayment and offtake agreements, in line with standard industry practices. To date, it has maintained full commercial flexibility, with 100% of its production uncommitted. Any agreements executed would form part of the Company's strategy to optimize its capital structure and support Phase 2 funding alongside BNDES reimbursements.

Operational and Phase 2 Expansion Updates

During the six-month period ended June 30, 2025, Sigma continued to progress on the Phase 2 expansion project, with completion of key site preparation activities including formal earthworks and terracing. The Company remains focused on de-risking execution through strategic alignment of Phase 2 with the proven flowsheet, engineering concepts, and supplier partnerships established in Phase 1.

In parallel, Sigma has undertaken a detailed review of procurement priorities and project execution strategy, reinforcing its commitment to value-driven capital allocation and operational excellence. This includes evaluating optimal timelines for the contracting of long lead equipment and engineering services that will ensure readiness for the next construction milestones.

The Phase 2 expansion remains a transformative opportunity for the Company, with expected additional production capacity of 250,000 tonnes per annum of 5.5% Green Lithium. Together with Phase 1, this would bring the total annual production capacity to 520,000 tonnes of lithium oxide concentrate at Grota do Cirilo.

The Company continues to leverage the synergies and learnings from Phase 1 to enhance the efficiency and sustainability of the Phase 2 implementation, with ramping-up scheduled for 2026.

Qualified Person Disclosure

Please refer to the Company's National Instrument 43-101 technical report titled "Grota do Cirilo Lithium Project Araçuaí and Itinga Regions, Minas Gerais, Brazil" issued March 31, 2025, which was prepared for Sigma Lithium by Marc-Antoine Laporte, P.Geo, SGS Canada Inc., William van Breugel, P.Eng, SGS Canada Inc., Johnny Canosa, P.Eng, SGS Canada Inc., and Joseph Keane, P. Eng., SGS North America Inc. (the "Technical Report"). The Technical Report is filed on SEDAR and is also available on the Company's website.

The independent qualified person (QP) for the Technical Report's mineral resource estimates is Marc-Antoine Laporte P.Geo., M.Sc., of SGS Group in Quebec, Canada. Mr. Laporte is a Qualified Person as defined by Canadian National Instrument 43-101.

Other disclosures in this news release of a scientific or technical nature at the Grota do Cirilo Project have been reviewed and approved by Iran Zan MAIG (Membership number 7566), who is considered, by virtue of his education, experience and professional association, a Qualified Person under the terms of NI 43-101. Mr. Zan is not considered independent under NI 43-101 as he is Sigma Lithium Director of Geology.

Mr. Zan has verified the technical data disclosed in this news release not related to the current mineral resource estimate disclosed herein.

ABOUT SIGMA LITHIUM

Sigma Lithium (NASDAQ: SGML, TSXV: SGML, BVMF: S2GM34) is a leading global lithium producer dedicated to powering the next generation of electric vehicle batteries with carbon neutral, socially and environmentally sustainable chemical-grade lithium concentrate.

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