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Sigma Lithium (NASDAQ: SGML) boosts cash, cuts debt and secures offtakes

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(Neutral)
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(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

Sigma Lithium reported strong cash generation and new sales contracts as it released results for the three and twelve months ended December 31, 2025. In 4Q25, the company generated US$31 million in cash from operations, with cash and equivalents at US$6.2 million at quarter-end and US$12 million as of March 30, 2026. Cash inflows were US$35 million in 1Q26 and are expected to reach US$96 million in 2Q26.

The company signed two offtake agreements for high grade premium lithium oxide concentrate, including a US$96 million prepayment for 70,500 tonnes in 2026 and a US$50 million prepayment for 40,000 tonnes per year over three years starting in 2026. Sigma Lithium achieved approximately US$67 million in net sales revenues across 4Q25 and 1Q26 and reported a 47% operating cash margin in 4Q25, supported by a 77% decline in operating costs versus a 64% drop in net sales revenues.

In 2025, trade finance debt was reduced by 60% from 2024 and total debt declined by 35% to US$141 million, including a US$100 million loan the company expects to pay down in 2026 using offtake proceeds and cash generation. Looking ahead, Sigma Lithium expects to produce 240,000 tonnes of high grade premium lithium oxide concentrate over the next twelve months at an all-in sustaining cost of US$592 per tonne, with forecast annual cash flow ranging from US$158 million to US$258 million depending on realized lithium prices.

Positive

  • Robust cash generation and margins: 4Q25 cash from operations was US$31 million with a 47% operating cash margin, supported by a 77% decline in operating costs despite a 64% drop in net sales revenues.
  • Deleveraging and balance sheet improvement: In 2025, trade finance debt was reduced by 60% and total debt declined by 35% to US$141 million, enhancing financial flexibility.
  • Secured demand through offtake agreements: Two prepayment-backed offtake deals totaling US$146 million provide volume visibility and working capital support for high grade premium lithium oxide concentrate sales.
  • Scalable low-cost production profile: Guidance for 240,000 tonnes of high grade premium lithium oxide concentrate at an all-in sustaining cost of US$592 per tonne underpins forecast cash flows at a range of lithium prices.

Negative

  • None.

Insights

Strong operating cash flow, cost discipline and debt reduction support Sigma Lithium’s growth plans.

Sigma Lithium is demonstrating solid fundamentals for a growth-stage lithium producer. It generated US$31 million in operating cash in 4Q25 and expects cash inflows of US$96 million in 2Q26, underpinned by sales of high-purity fines and new offtake prepayments.

The 4Q25 operating cash margin of 47%, alongside a 77% drop in operating costs versus a 64% decline in net sales revenues, highlights effective cost control. Deleveraging is notable: trade finance debt fell 60% year-over-year and total debt declined 35% to US$141 million, improving balance sheet resilience.

Forward guidance shows ambition, with expected production of 240,000 tonnes of high grade premium lithium oxide concentrate at an all-in sustaining cost of US$592/t. At realized prices of US$1,500–2,000/t, the company’s table indicates potential cash flow between US$158 million and US$258 million. Actual performance will depend on execution of mine operations and prevailing lithium prices as reflected in future reporting periods.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

 

FORM 6-K

 

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR
15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

 

For the month of March 2026

 

Commission File Number: 001-40786

 

Sigma Lithium Corporation
(Translation of registrant's name into English)

 

181, Bay Street, Suite 4400
Toronto, Ontario, M5J 2T3, Canada

(Address of principal executive office)

 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [   ]      Form 40-F [X]

 

 

 

 

 

 

EXHIBIT INDEX

 

Exhibit  Description
   
99.1 Press Release dated March 30, 2026



 

 

 

 

 

 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

        Sigma Lithium Corporation    
    (Registrant)
     
     
Date: March 30, 2026   /s/ Ana Cristina Cabral
    Ana Cristina Cabral
    Chief Executive Officer
     

 

 

 

 

 

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SIGMA LITHIUM ANNOUNCES FULL YEAR 2025 RESULTS: US$31M CASH FLOW AND 47% CASH MARGIN IN 4Q25; SIGNED US$146M IN TWO OFFTAKE AGREEMENTS

 

HIGHLIGHTS

·        Strong cash generation: cash from operations in 4Q25 of US$31 million, cash inflows in 1Q26 of US$35 million and expected cash inflows in 2Q26 of US$96 million.

·        Signed two offtake agreements to supply high grade premium lithium oxide concentrate:

oUS$96M for 70,500t to be delivered in 2026
oUS$50M for 40,000t per year for three years for delivery starting in 2026

·        Successful commercial strategy – achieved net sales revenues of approximately US$67 million in 4Q25 and 1Q26, including:

oSales of high purity lithium fines of approximately 650,000 tonnes
oSales of high-grade premium lithium oxide concentrate of approximately 5,000 tonnes

·        Operating cash margin of 47% in 4Q25, showing financial discipline.

·        Deleveraged balance sheet and repaid debt: in 2025 cut trade finance debt by 60% and total debt by 35%.

·Restructured mining operations, successfully transitioning from outside contractor to operational control, achieving efficiency gains and cost optimization.
 

Conference Call Information

The Company will hold a conference call to discuss its financial results for the second quarter of 2025 at 7:30a.m. ET on Monday, March 30, 2026. Register for the call at https://ir.sigmalithiumcorp.com/events

 

 

São Paulo, March 30, 2026 – Sigma Lithium Corporation (NASDAQ: SGML, TSX-V:SGML BVMF: S2GM34) (“Sigma Lithium” or the “Company”), the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security, announces the Company’s results for the three months and the twelve months ended December 31, 2025 and provides an update on recent developments.

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STRONG CASH GENERATION

 

In 4Q25, the Company generated cash from operations of US$31 million, comprising inflows of US$41 million less cash operating costs of US$10 million. At the end of 4Q25, the Company’s had cash and cash equivalents of US$6.2 million, which was up slightly from US$6.1 million at the end of 3Q25, as the company used a substantial amount of the cash generated for debt repayment.

 

In 1Q26, cash inflows were US$35 million, primarily from sales of high-purity lithium oxide fines, and cash and equivalents as of March 30, 2026 were US$12 million. In 2Q26, Sigma Lithium’s expected cash inflows are US$96 million, including US$83 million from the Company’s two offtake agreements and US$14 million in proceeds from sales of high-purity lithium oxide fines made in 1Q26.

 

SIGNED TWO SIGNIFICANT OFFTAKE AGREEMENTS

 

The Company signed two offtake agreements to supply high grade premium lithium oxide concentrate: a prepayment of US$96 million for 70,500 tonnes during 2026, which was previously announced, and another for the prepayment of US$50 million to supply 40,000 tonnes per year for three years commencing in 2026.

  
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The agreement that provides for the supply of 70,500 tonnes of high grade lithium oxide concentrate is to be fulfilled during 2026 with disbursements of US$8 million per month (for a total US$96 million) and is designed to support the company’s working capital requirements. Both agreements include flexibility regarding the timing of delivery of the product, which will enable the Company to continue to execute its successful commercial strategy and fully benefit from lithium market seasonality.

 

EXECUTED A SUCCESSFUL COMMERCIAL STRATEGY

 

In 4Q25 and 1Q26, Sigma Lithium achieved net sales revenues of approximately US$67 million with sales of about 650,000 tonnes of high purity lithium fines and approximately 5,000 tonnes of high-grade premium lithium oxide concentrate, marking a restart of sales of Sigma Lithium’s main product following the remobilization of the Company’s mine operations. The Company’s mine operations were demobilized at the beginning of October 2025 for a restructuring and remobilized at the end of January 2026. Net sales revenues also included approximately US$14 million in product final price adjustments.

 

HIGH OPERATING CASH MARGIN SHOWS FINANCIAL DISCIPLINE

 

In 4Q25, Sigma Lithium’s operating cash margin was 47%, with a decline in operating costs of 77% on a year-over-year basis more than offsetting a drop in net sales revenues of 64%. This performance demonstrates the Company’s ability to reduce costs and underscores Sigma Lithium’s financial resilience.

 

DELEVERED BALANCE SHEET AND REPAID DEBT

 

In 2025, Sigma Lithium continued to deleverage its balance sheet. Trade finance debt was cut by 60% from 2024 and total debt declined by 35%. The Company continued to reduce trade finance debt in 1Q26, when it was reduced by 21% from 4Q25 to US$19 million. Total debt at year-end 2025 stood at US$141 million, including a US$100 million loan that Sigma Lithium expects to pay down in 2026 using the proceeds of offtake agreements and anticipated strong cashflow generation.

 

GUIDANCE FOR PRODUCTION VOLUMES AND COST PER TONNE

 

In the next twelve-month period, Sigma lithium expects to produce 240,000 tonnes of high grade premium lithium oxide concentrate at an all-in sustaining cost of US$592 per tonne.

 

Production Volumes and Costs per Tonne (US$/t) Estimated
12 Month Period (Phase 1)
Estimated FY2027E
(Phases 1 & 2)
Estimated FY2028E
(Phases 1, 2 & 3)
   
   
   
Production Volumes 240,000 520,000 770,000    
CIF China Cash Cost (440) (440) (440)    
Maintenance Capex + Other Expenses (12) (12) (12)    
ESG, G&A Expenses (80) (32) (16)    
Interest Expenses (60) (27) (27)    
All-In Sustaining Cost (592) (511) (495)    
Cash Flow Forecasts at Various Realized Lithium Prices (US$ M)*      
Cash Flow @ US$1,500/t $158 $384 $581    
Cash Flow @ US$1,800/t $218 $514 $774    
Cash Flow @ US$2,000/t $258 $601 $902    
*Prices used to calculate cash flow are grade adjusted.    

 

 

 

  
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ABOUT SIGMA LITHIUM

Sigma Lithium Corporation (NASDAQ: SGML, TSXV: SGML, BVMF: S2GM34), (“Sigma Lithium” or “the Company”) is the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security.

The Company operates one of the world’s largest lithium production sites—the fifth-largest industrial-mineral complex for lithium oxide concentrate—at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The Company’s Greentech Industrial Plant combines dry stacking, the reuse of 100% of water, zero use of toxic chemicals and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time.

Sigma Lithium currently has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000–40,000 tonnes of LCE) at its mine and state-of-the-art Greentech Industrial Plant. The Company has initiated a Phase 2 expansion designed to close to double production capacity to 520,000 tonnes. For more information about Sigma Lithium, visit our website

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FOR ADDITIONAL INFORMATION PLEASE CONTACT

Anna Hartley, Vice President of Global Banking and Investor Relations

anna.hartley@sigmalithium.com.br

+44 7866 458 093

Mariana Bengtson, Investor Relations Manager

mariana.bengtson@sigmalithium.com.br

+55 11 9 2144 2750

 

Sigma Lithium

Sigma Lithium
@sigmalithium
@SigmaLithium

 

FORWARD-LOOKING STATEMENTS

 

This news release includes certain “forward-looking information” under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes, production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements that address future plans, activities, events, estimates, expectations or developments that the Company believes, expects or anticipates will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil; demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company’s market position and future financial and operating performance; the Company’s estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; and the Company’s ability to operate its mineral projects including that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical issues. Although management believes that the assumptions and

  
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expectations reflected in the forward-looking information are reasonable, there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company and other public filings available under the Company’s profile at www.sedarplus.com.

 

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

 

 

  
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FAQ

How much cash did Sigma Lithium (SGML) generate in 4Q25?

Sigma Lithium generated US$31 million in cash from operations in 4Q25. This reflected US$41 million of cash inflows and US$10 million of cash operating costs, while also using part of the cash generated to reduce debt and slightly increase quarter-end cash balances.

What offtake agreements did Sigma Lithium (SGML) sign for 2026 and beyond?

Sigma Lithium signed two offtake agreements for high grade premium lithium oxide concentrate. One includes a US$96 million prepayment for 70,500 tonnes in 2026, and another provides a US$50 million prepayment to supply 40,000 tonnes per year for three years beginning in 2026.

How did Sigma Lithium’s (SGML) debt levels change in 2025?

In 2025, Sigma Lithium cut trade finance debt by 60% compared with 2024 and reduced total debt by 35%. Total debt at year-end 2025 was US$141 million, including a US$100 million loan that the company expects to pay down in 2026 using offtake proceeds and cash flow.

What operating cash margin did Sigma Lithium (SGML) report for 4Q25?

Sigma Lithium reported a 47% operating cash margin in 4Q25. This margin came as operating costs fell 77% year-over-year, more than offsetting a 64% decline in net sales revenues, illustrating the company’s emphasis on cost reduction and financial discipline.

What production and cost guidance did Sigma Lithium (SGML) provide?

For the next twelve months, Sigma Lithium expects to produce 240,000 tonnes of high grade premium lithium oxide concentrate. It targets an all-in sustaining cost of US$592 per tonne, combining CIF China cash costs, maintenance capex, ESG and G&A expenses, and interest expenses.

What cash flow scenarios did Sigma Lithium (SGML) present for future years?

Sigma Lithium presented forecast cash flows at various realized lithium prices. For the estimated 12‑month period, cash flow is shown as US$158 million at US$1,500 per tonne, US$218 million at US$1,800 per tonne, and US$258 million at US$2,000 per tonne, using grade-adjusted prices.

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