Slide 1: BofA Virtual Storage Conference
BofA Virtual Storage Conference June 12, 2025 : 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: Production, sales and financing update
Increasing Overall Resilience of the Business PRODUCTION: • 2Q25 Production Volumes Expected to Meet Target ▪ New Crusher Plant Installed with On-site Capacity of 7,500t/day SALES: • Lower Spot Prices May Result in Temporary Inventory Buildup in Q2 • Sales Expected to Recover in 3Q-4Q 1Q25 AISC at $
Slide 5: Sigma Lithium Delivered on the Challenge
Sigma Lithium Delivered on the Challenge Achieved Low-Cost Production, Without Sacrificing Sustainability and Ethical Sourcing Hard-Rock C3 cost-curve 1,400 1,200 CIF China U$/t Cost of Lithium Concentrate 1,000 800 600 400 200 - - 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 Spod
Slide 6: Production Levels Increase of 28% YoY Achieved in 1Q25
Production Levels Increase of 28% YoY Achieved in 1Q25 Reinforces FY2025 Production Guidance Production & Sales Volumes Unlocking Financing 100% Production Not Tied to Production Sales Annualized Production Offtakes = 308kt Potential Cash Generation From Prepayments, Lower Cost of Debt 273kt 270kt 3
Slide 7: Commercial
Commercial
Slide 8: 12-Month Lithium Price Overview
12-Month Lithium Price Overview Spodumene 6% of Li2O, Asia, $/Tonne $1,400 $1,200 $1,000 $800 $600 $400 $200 $- Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25
Slide 9: Race to the Bottom…ZERO Ethical Standards
Race to the Bottom…ZERO Ethical Standards page 9
Slide 10: Prepayment Offtake Options
Prepayment Offtake Options Potential Value of Agreement: Counterparties: Trading & Corporate Quantity Duration Counterparty to Secure Prepayment 1. 40kt per company 3 years: 1. Western Trading Companies $50 million each 2. 40kt per company 2H25 to 2H28 3 years: 2. Asian Trading Companies 80kt $100 m
Slide 11: Decrease in Trade Finance Short-Term Debt
Decrease in Trade Finance Short-Term Debt As a Result of Continuous Working Capital Efficiency (1) Decreased Short-Term Trade Finance Facilities Decrease in Interest per Ton in 1Q25 $ 120 25.00% $ 2,500 $ 80 Interest (Accrued) and Average Interest Rates (US$ M) -42% Export Prepayment Trade Finance B
Slide 12: Further Decreased Interest Expenses Towards Achieving 2025 Targets
Further Decreased Interest Expenses Towards Achieving 2025 Targets Production Expansion to be Financed with Lower-Cost Subsidized Debt from BNDES Financial Guidance Statements Provided Reported Guidance Provided FY 2025 E FY 2026 E Short-Term Debt $1 20/t Long-Term Debt $ 200,000 Interest/ton Non-Di
Slide 13: Update on Expansion
Update on Expansion
Slide 14: Existing Infrastructure Will Expedite Construction of Plant 2
Existing Infrastructure and Mining Operations of Plant 1 will Expedite the Construction of Plant 2 Construction Progress P1 P2 Water Pipelines In Place Power Substation In Place Moving High Voltage Power Lines In Place Sewage Water Treatment Plant In Place Greentech Plant Support Infrastructure In P
Slide 15: Plant 2 Fully Financed by BNDES Loan
Plant 2 Fully Financed by BNDES Loan Highly Attractive Development Loan for Project Financing Financial Commitment: BRL 487 mm First loan disbursement pending bank guarantee. Will reimburse capex spent 99% Capex since 1Q24 Terms: Maturity: 16 Years Grace Period: 18 Months % Fixed Interest Rate: USD
Slide 16: Sigma Built a Resilient Company Thriving Throughout Lithium Price Cycles
Sigma Built a Resilient Company Thriving Throughout Lithium Price Cycles Large Scale Production 1. Speed of Execution 2. Low Capex: Developed Mining & Industrialized State in Brazil 3. Low-Cost Operating Country Traceability: Zero Accidents & Low Production Cost Highest Environmental Standards
Slide 17: Q&A
Q&A
Slide 18: Social Development Engine of the Entire Region
Social Development Engine of the Entire Region 21,000 1,700 18,000 Job Openings Direct Jobs Indirect Jobs (Microcredit & Small Scale Agriculture) 18,000 85% 50% People With Access to Regional Workforce Economically Active Drinking Water Population Beenfited 200 6.8% 3 Million NEW Construction Jobs G
Slide 19: We Successfully Solved The Puzzle of Competitive Advantage
We Successfully Solved The “Puzzle of Competitive Advantage” Scale + Low Costs Traceability + Low Costs Scale + Traceability = = = Price Cycle Resilience Competitive Sells to Largest Supply Advantage to Africa Chains Low Construction Capex Management Speed of Location in Developed = Execution Mining
Slide 20: Among the Lowest Capex-Intensive Projects in the World
Among the Lowest Capex-Intensive Projects in the World Sigma is the incremental supplier to meet growing demand Project Capex Intensity Comparison Sigma’s P2 Leads in Capex Intensity Bubble size = capex efficiency ratio (USD millions) / production capacity Capex intensity ratio = capex (USD millions
Slide 21: Operational Excellence Driven by a Culture of Safety and Processes
Operational Excellence Driven by a Culture of Safety and Processes One of ICMM’s Best Safety Records ▪ Strengthening Health, Safety & Environment Strategy ▪ Employee Engagement & Safety Leadership ▪ Workshops & Safety Culture Development 700+ Consecutive Days Without a Lost Time Injury (LTI) 1.23 (1
Slide 22: Sigma Lithium
W\4 SIGMA LITHIUM