Sigma Lithium Corporation · NASDAQ:SGML
Sigma Lithium — Non-Deal Roadshow (June 2026)
38 slides from Sigma Lithium's roadshow presentation, June 2026
Slide 1: Non-Deal Roadshow
Non-Deal Roadshow June 9 to 11, 2026 : SGML : SGML : S2GM34
Slide 2: 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
Slide 3: 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
Slide 4: Summary
Summary
Slide 5: Sigma Lithium 2026: More Efficient; More Competitive
Sigma Lithium 2026: More Efficient; More Competitive Low Cost, High Growth, Financially Resilient Enhanced Operational Efficiency Brazil: Politically Stable Traditional Country Upgraded Mining in Record Achieving Record Recoveries in Timetable Cleantech Industrial Processing Large Scale Highest Low
Slide 6: Largest Oxide Concentrate Producer in Americas
Largest Oxide Concentrate Producer in Americas Cycle Resilient: Operational Excellence, Competitive Advantage of Low Costs & Sustainability Large Scale Lithium Concentrate Production • Largest lithium oxide concentrate producer in the Americas • Expansion to 520,000 in 2027 Large Scale • Expansion t
Slide 7: Strategically Located to Access Global Supply Chains
Strategically Located to Access Global Supply Chains Brazil is one of the world’s largest mining provinces, with state-of-the-art logistics infrastructure Shipping: Vitoria Port (Serves Vale and Others) Water: Permanent River at Property 100% Renewable Power: Hydro & Solar High Voltage Transmission
Slide 8: Sigma Lithium Large Scale: Amongst The World's Largest
Sigma Lithium Large Scale: Amongst The World’s Largest “Traceable” Lithium Mineral-Industrial Complexes in Production Contained Lithium Tonnage (Mt LCE) 18 M&I Grade (Li2O%) 1.6% 16.3 Average Grade Contained Lithium in M&I Resources 16 1.5% Lithium Grade in M&I Resources 14.1 14 (Million Tonnes of L
Slide 9: Competitive Advantage of Low Costs: Create Resilience From Price Pressures
Competitive Advantage of Low Costs: Create Resilience From Price Pressures of New Regions and Refining Innovation (1) 1,400 Hard-Rock Lithium CIF China Cost-Curve Total Cash Cost Dec 25 ($1,200) CIF China US$/t Cost of Lithium Concentrate Actual Guidance 1,200 (US$ per tonne) 1Q26: Impacted by lower
Slide 10: Low-Cost Per Tonne Position to Improve Following Mining Upgrade and Planned Expansions
Low-Cost Per Tonne Position to Improve Following Mining Upgrade and Planned Expansions (1) (2) Plant Gate Cost CIF Cash Cost with Royalties US$/Tonne US$/Tonne Cost per tonne in 3Q25 and 1Q26 impacted by lower production due to mining upgrade $678 $623 $551 $543 $515 $513 $458 $442 $424 $427 $397 $3
Slide 11: Significantly Increased Margins: 1Q26 Was the Highest in Sigma Lithium's History
Significantly Increased Margins: 1Q26 Was the Highest in Sigma Lithium’s History Gross Margin EBITDA Margin Operating Margin Net Margin 61% 39% 33% 28% 26% 23% 21% 14% 9% 10% (1%) (19%) 1Q24 1Q25 1Q26 1Q24 1Q25 1Q26 1Q24 1Q25 1Q26 1Q24 1Q25 1Q26 page 11
Slide 12: Industrial Greentech DMS Plant 3.0: Upgraded Production Capacity
Industrial Greentech DMS Plant 3.0: Upgraded Production Capacity to 270kt-300kt With Innovations on DMS Processing Plant 2.0 – 2023 Plant 3.0 – Current Module 3: Tailings dry-stacking and total Module 1: Increase in efficiency reengineering of the water reusage circuit Module 2: Optimization of reco
Slide 13: Industrial Plant 3.0 = Automation + Algorithms = 70% Recovery on DMS
Industrial Plant 3.0 = Automation + Algorithms = 70% Recovery on DMS Implementing AI in the SCADA system: • Self Learning Metallurgy from Mineralogy • Detection of Anomalies • Correction Recommendations
Slide 14: Upgrade, Modernization and Fleet Scale Increase of 40% in Mining Operations
Upgrade, Modernization and Fleet Scale Increase of 40% in Mining Operations • Upgrade to in-house operations replacing third party contractor • Larger machinery = more productivity • Ongoing larger equipment deployment • Leased equipment reduced operating costs page 14
Slide 15: Sigma Lithium Has One of the World's Best Safety Records
Sigma Lithium Has One of the World’s Best Safety Records: Over 1,000 Days With ZERO Accidents and Fatalities Rigorous Safety Protocols Employee engagement & strict processes Direct connection to factory floor Enhanced performance (1) Without Lost Time Injury (LTI) YTD TRIFR(2) (1) Data as of M
Slide 16: Sale of Lithium Oxide Fines: Cash Flow to Self Fund Mining Upgrade
Sale of Lithium Oxide Fines: Cash Flow to Self Fund Mining Upgrade New Business Will Continue Proven “Sustainability Premium” page 16
Slide 17: Operations and Financial
Operations and Financial
Slide 18: Production of Lithium Concentrate: History of Rapid Ramp-up
Production of Lithium Concentrate: History of Rapid Ramp-up Upgraded Industrial Plant; raised capacity to 270,000tpy; mining primarization to increase efficiency Quarterly Production Volumes of Lithium Concentrate Production Industrial Forecast Production Cadence Industrial Plant Upgrade 77kt 72kt 7
Slide 19: Cashflow Generation Outlook
Cashflow Generation Outlook Low-cost position makes Sigma Lithium leveraged to lithium market recovery Estimated 12 Production Volumes and Costs per Tonne (US$/t) Month Period Phases 1 & 2 Phases 1, 2 & 3 (Phase 1) Production Volumes 240,000t 520,000t 770,000t CIF China Cash Cost ($624) ($571) ($571
Slide 20: Disciplined Financial Execution: Repaid Total Debt by 21% in the Last Year
Disciplined Financial Execution: Repaid Total Debt by 21% in the Last Year, 33% in the Last 2 Years Total Debt Shareholder Debt (Synergy) $250M Bank Debt $200M $150M $100M $50M $0M 1Q24 2Q24 3Q24 4Q24 1Q25 2Q25 3Q25 4Q25 1Q26 page 20
Slide 21: Strong Cash Flow Generating Capacity and Low Debt Levels Unlocks Funding Options
Sigma: Strong Cash Flow Generating Capacity and Low Debt Levels Unlocks Funding Options (1) (1) (2) Australia 1 Australia 2 Sigma Lithium AU$ Millions AU$ Millions US$ Millions $5,350 $78 2.0x Net Debt/ EBITDA 5.9x Net Debt/ EBITDA $134 $129M $66M $901 ($292) -$14M Net Debt EBITDA Net Debt Annualize
Slide 22: Planned Expansion
Planned Expansion
Slide 23: Expansion to 3X Phase 1 Nominal Capacity of 270,000tpy
Expansion to 3X Phase 1 Nominal Capacity of 270,000tpy Modular expansion: adding 2 production lines to the Greentech Industrial Plant at ~ US$100M each (Tonnes of high-grade premium lithium oxide concentrate) Production Guidance Production Guidance Production Capacity Production Capacity Phase 1 Pha
Slide 24: Production Mostly Available for Offtake Agreements
Sigma 2026 & 2027 Production Mostly Available for Offtake Agreements Ensure Debt Repayment and Growth Capex Flexibility Annual Agreed Use of US$ M Description Status Volume Upon Term Proceeds 2025 (1) Prepayment of production Working 70,500t 1 Year US$96M during 2026 capital 3 years Conventional off
Slide 25: Existing Infrastructure to Expedite the Construction of Plants 2 & 3
Existing Infrastructure and Mining Operations of Plant 1 to Expedite the Construction of Plants 2 & 3 Construction Progress P1 P2 P3 Water Pipelines In Place In Place Power Substation In Place In Place Moving High Voltage Power Lines In Place In Place Low-cost brownfield Sewage Water Treatment Plant
Slide 26: Conclusion
Conclusion
Slide 27: Organic Growth to 520,000tpy and Positioned for a Re-Rating
Sigma: Strong Cash Generation + Low-Cost Capex = Organic Growth to 520,000tpy (Phase 2) and Positioned for a Re-Rating Lithium Companies Market Capitalization and 2027E Production $25.0 130kt LCE 113kt LCE Market Cap (US$ B) (1) 11 0kt LCE $20.0 FY27 Production Capacity (kt LCE) 90kt LC E 81kt LCE $
Slide 28: Leading Producer Resilient to Cycles: 3-Year Production Track Record
Leading Producer Resilient to Cycles: 3-Year Production Track Record: Delivered on All Fronts Lengthen debt maturity Client financing: 1Q 2023 strengthen commercial strategy Remain Lowest cost producer Greentech Plant operation upgraded and more efficient Maintain EBITDA margins at 40% Fully funded
Slide 29: Appendix
Appendix
Slide 30: Phases 2 & 3: Licensing Advanced and Construction Fully Permitted
Phases 2 & 3: Licensing Advanced and Construction FULLY PERMITED Ready to Start Asset Environmental Mineral Process: Parallel Regulatory Tracks Status Licensing Rights Both are mandatory and independent — a company needs clearance on each track separately Preliminary, Permanent Mine 2 Mine Environme
Slide 31: Large Mineral Property of 150 Mt Secures Triple Growth in Production
Large Mineral Property of 150 Mt Secures Triple Growth in Production to 770,000tpy by 2027-2028 Mine 1 (Xuxa) Mine 1 (Xuxa)
Slide 32: Brazil is an Attractive Mining Jurisdiction
Brazil is an Attractive Mining Jurisdiction Minas Gerais state is Brazil’s 3rd largest economy and host to 300+ operating mines Brazil Mining Sector Overview Minas Gerais is a Pro Mining State 1 Revenue Minerals Produced ~US$45 billion >90 per annum² commodities Taxes & Tributes Companies ~US$15 bil
Slide 33: Fraser Institute Investment Attractiveness Index 2025
Nevada Ontario Saskatchewan South Australia* Arizona Western Australia Botswana Norway* Sweden Saudi Arabia Finland Alaska Queensland Newfoundland & Labrador Morocco* New Mexico* Tasmania* Source: Fraser Institute Annual Survey of Mining Companies, 2025. San Juan Brazil* British Columbia Santa Cruz*
Slide 34: Upgrade, Modernization and Capacity Increase of Mining Fleet
Upgrade, Modernization and Capacity Increase of Mining Fleet page 34
Slide 35: Upgrade, Modernization and Capacity Increase of Mining Fleet
Upgrade, Modernization and Capacity Increase of Mining Fleet page 35
Slide 36: Upgrade, Modernization and Capacity Increase of Mining Fleet
Upgrade, Modernization and Capacity Increase of Mining Fleet page 36
Slide 37: Upgrade, Modernization and Capacity Increase of Mining Fleet
Upgrade, Modernization and Capacity Increase of Mining Fleet page 37
Slide 38: Sigma Lithium
V\ 4 SIGMA LITHIUM