Methanex Project Overview

Geismar 3 has distinct project advantages and robust project economics 1. Project returns - significant capital and operating cost advantages enhance project returns 2. Based on remaining capital costs¹ Estimate IRR of 20-28% for methanol prices between $350 and $400/tonne, gas price of $2.90/mmbtu and freight to Asia We return our cost of capital at methanol prices of ~$250/tonne Significant capital cost advantages - use of excess hydrogen from Geismar 1 and Geismar 2 eliminates the need for a primary reformer 3. Meaningful brownfield advantages - shared infrastructure with Geismar 1 and 2 creates capital and operating cost advantages Well-situated - with access to long-term cost advantaged 3rd party supply for oxygen, utilities and terminal capacity 4. 5. Low cost-operating cost advantages make Geismar 3 one of the lowest cost plants in our portfolio 6. Significant cash generation capability - expect incremental free cash flow of ~$125-$250M per year (methanol price of $300-400/tonne) 7. Natural gas supply - underpinned by abundant and low-cost US natural gas resources 8. Very low CO2 emissions intensity - estimated to be among the lowest CO2 emissions intensity methanol plants in the world² Lower country risk - lower construction and operational risk for manufacturing assets in the US compared to other regions 29 9. 10. Project de-risked - activities completed during care and maintenance period significantly reduce the project execution risk profile 11. Labour availability - Geismar 3 project is well-positioned in the construction market ahead of other non-methanol major projects in the US Gulf Coast 12. Supply chain flexibility - global supply chain capabilities create low cost flexibility to respond to tariffs 1 Based on remaining Geismar 3 capital costs (~$800-900M), after resuming construction, and excludes costs of approximately $455M committed as of the end of Q3 2021 through the care and maintenance period 2 Estimate that Geismar 3's CO2 emissions intensity (Scope 1 and Scope 2) to be less than 0.4/tonne vs existing Mx portfolio of ~0.6/tonne and vs coal-based methanol plants (5-7x higher than natural gas-based plants) methanex the power of agility

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