Sigma Lithium Corporation · NASDAQ:SGML

Sigma Lithium — BofA Critical Minerals Conference 2025

25 slides from Sigma Lithium's conference presentation, Nov 24, 2025

  1. Slide 1: Resilient in a Volatile Lithium Market Environment

    Resilient in a Volatile Lithium Market Environment BofA Critical Minerals Conference 24th of November 2025 : SGML : SGML : S2GM34

  2. Slide 2: Disclaimer

    Disclaimer (…) to risks associated with its reliance on consultants and others for mineral exploration and exploitation expertise; The current COVID-19 pandemic could have a material adverse effect on Sigma’s business, operations, financial condition and stock price; If Sigma is unable to ultimately

  3. Slide 3: Disclaimer

    Disclaimer No Offer or Solicitation Regarding Securities This presentation has been prepared by Sigma Lithium Corporation (“Sigma”) for general information purposes only and does not constitute an offer to sell or a solicitation of an offer to buy any securities of Sigma or its affiliates in any jur

  4. Slide 4: Overview of Asset and Production Potential

    Overview of Asset and Production Potential

  5. Slide 5: Leading Global Lithium Producer

    Leading Global Lithium Producer Operational Excellence, Competitive Advantage of Low Costs & Traceability Large Scale Lithium Producer • One of the World’s Largest Lithium Producers • Run-rate annual production of 270,000 tonnes (37,000 t LCE) Large Scale • Expansion to 766,000 tonnes (120,000 t LCE

  6. Slide 6: Global Producer Growing in Scale

    Global Producer Growing in Scale Plan to increase annual LCE production capacity from 40,000 to 120,000 by 2027 via organic growth Nameplate Capacity (tonnes of LCE) 2026E: 2027E: Phase 2 Expansion: 80,000 Phase 3 Expansion: 120,000 Phase 3 40,000 Phase 2 Phase 2 40,000 40,000 Phase 1 Phase 1 40,000

  7. Slide 7: Significant Potential for Growth as Lithium Demand Accelerates

    Significant Potential for Growth as Lithium Demand Accelerates Current focus is on just one part of the broader land package and only 4 of the 9 former operating lithium mines have NI 43-101 mineral resource estimates to date

  8. Slide 8: Brazil Lithium Landscape Advantages

    Brazil Lithium Landscape Advantages

  9. Slide 9: Strategically Located for the Electric Battery Supply Chain

    Strategically Located for the Electric Battery Supply Chain Located in one of the world’s largest mining provinces with existing infrastructure, including roads, water, clean power and port access Shipping: Vitoria Port Water License for River at Property Power: Hydroelectricity Transmission Lines R

  10. Slide 10: Unit Cost Improvements and Optimization Strategy

    Unit Cost Improvements and Optimization Strategy

  11. Slide 11: Cost Per Tonne Low and Trending Downwards

    Cost Per Tonne Low and Trending Downwards (1) (2) Plant Gate Cost CIF Cash Cost with Royalties 9M25 AISC vs FY2025 Guidance (3) US$/Tonne US$/Tonne US$/Tonne +5% +6% +7% $692 $660 +23% +22% $551 $543 $560 $515 $513 $458 $442 $424 $427 $397 $395 $364 $349 $348 $318 1Q24 2Q24 3Q24 4Q24 1Q25 2Q25 3Q25

  12. Slide 12: Production and Cost Guidance

    Production and Cost Guidance Cash flow generation is poised to increase as production efficiency as a strategic plan is conducted Guidance for Production Volumes and Costs per Tonne (US$/t) FY2026E FY2027E (Phase 1 Only) (Phases 1 & 2) Production Volumes 300,000t 550,000t CIF China Cash Cost (440) (

  13. Slide 13: Cash Balance and Balance Sheet

    Cash Balance and Balance Sheet

  14. Slide 14: Balance Sheet Highlights

    Balance Sheet Highlights US$ M Assets 3Q25 Liabilities 3Q25 Cash 6.1 Short term debt 48.6 Accounts receivables 19.7 Long term debt 113.3 Inventories 22.3 Suppliers 54.9 Property, plant and equipment 171.4 Total liabilities 259.0 Total assets 342.8 Shareholders’ Equity 83.8 • Cash position of US$21 M

  15. Slide 15: Prepayments

    ” i ¢ co) S > 3°) 2. cc) f= a

  16. Slide 16: Offtake Agreements Enable Sustainable and Low-Cost Product

    Offtake Agreements Enable Sustainable and Low-Cost Product Different types of offtakes in place to cater for specific client needs Agreed Volume US$ M Description Use of Proceeds Status Upon Term 3 months Market Prices Prepayment of production until 80,000t (US$ 80 M @ March 30, 2026 Working capital

  17. Slide 17: Logic Behind Self Mining

    Logic Behind Self Mining

  18. Slide 18: Greentech Plant 3.0 Upgrade Was Not Accompanied By Mining

    Greentech Plant 3.0 Upgrade Was Not Accompanied By Mining: Plant Outperformance Compensated for Mine  Increased plant recoveries of 70%  Mine did not keep up with industrial plant upgrades concluded in Nov-24 (“Greentech 3.0”)  Mining operational upgrade was required: Reassessed our mining plan 

  19. Slide 19: We Mastered DMS Technology for Lithium Processing

    We Mastered DMS Technology for Lithium Processing… …Now Greater Efficiency is To Be Matched in Mining Operations PLANT ALREADY RESTARTED  Plant restarted processing high grade material  Target for 2026: achieve full plant capacity of 300kt  We had been recurringly achieving unprecedent recovery l

  20. Slide 20: Other Financing Options

    Other Financing Options

  21. Slide 21: Plant 2 Fully Financed by BNDES Loan BRL 487 mm

    Plant 2 Fully Financed by BNDES Loan Highly Attractive Development Loan for Project Financing Financial Commitment: BRL 487 mm The financing is structured on a reimbursement basis and secured by 99% Capex a bank guarantee Terms: Maturity: 16 Years Grace Period: 18 Months % Fixed Interest Rate: USD o

  22. Slide 22: Tailings/Middlings

    Tailings/Middlings

  23. Slide 23: Thoughts on Macro

    Thoughts on Macro

  24. Slide 24: China's Electric Vehicle Growth Drives Global Lithium Demand

    China’s Electric Vehicle Growth Drives Global Lithium Demand: 66% of the EV Market Electric Vehicle Sales in China (NEVs) Long-Term Demand Remains Strong (Mt LCE) 2020 2021 2022 2023 2024 2025 Batteries Industrial 2,000 6.0Mt Thousands of EVs 1,500 Global Lithium Demand Projection – Benchmark 5.0Mt

  25. Slide 25: Sigma Lithium

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