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Methanex — MEOH Investor Presentation July 2026 (company IR deck)

Methanex (MEOH) · 0 slides · Filed Oct 29, 2026

Every slide of this earnings presentation, with the text as published. Open the original deck ↗ · All MEOH deck slides

Slide 1 — The Global

The Global Methanol Leader CORPORATE PRESENTATION JULY 2026

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Slide 2 — Forward-looking statements and non-GAAP measures

Forward-looking statements and non-GAAP measures Information contained in these materials or presented orally, either in prepared remarks or in response to questions, may contain forward-looking statements. Actual results could differ materially from those contemplated by the forward-looking statements. For more information, we direct you to our 2025 Annual and Second Quarter 2026 Management Discussion and Analysis (MD&A) and slide 23 of this presentation. This presentation uses certain non-GAAP measures that do not have any standardized meaning prescribed by GAAP and therefore are unlikely to be comparable to similar measures presented by other companies. These measures represent the amounts that are attributable to Methanex Corporation and may exclude the impact of specific items. Refer to slide 24 of this presentation as well as Additional Information - Non-GAAP Measures in the Company’s 2025 Annual and Second Quarter 2026 MD&A for a reconciliation to the most comparable GAAP measures. All currency amounts are stated in United States dollars. 2 Methanex | The Global Methanol Leader | Investor Presentation

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Slide 3 — Q2 2026 Earnings

Q2 2026 Earnings Summary Methanex | The Global Methanol Leader | Investor Presentation 3

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Slide 4 — Q2 2026 Key Takeaways

Q2 2026 Key Takeaways 4 Methanex | The Global Methanol Leader | Investor Presentation Q2 2026 EBITDA Bridge – Q1 2026 to Q2 2026 ($M) Q2 Adjusted EBITDA increased to $577 million from $220 million in Q1 2026 Primarily driven by higher average realized price Costs were higher quarter over quarter: • Q2 cost increase from: • $18M logistics and other costs primarily related to shipping costs • $12M one-time restructuring cost accrual related to the Titan plant idling Ongoing work to optimize business: • Integration plan and synergy realization on track to be substantially complete by the end of 2026 577 Q1’26 EBITDA Average realized price1 Logistics and other Trinidad restructuring Q2’26 EBITDA 220 387 -12 -18 577 1 For this analysis, $28 million of higher purchased methanol costs in the second quarter are reclassified as a $28 million reduction of the second quarter benefit from average realized price

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Slide 5 — Q3 2026 and FY2026 Expectations

$ Millions, unless otherwise indicated Q3-26F Q2-26 Comments Methanol average realized price (/MT) $460 - $4851 $529 Expected ARP for the July and August period Produced methanol sales (MT) Similar 2,151 Based on ~9,000MT 2026 equity production guidance Adjusted EBITDA2 (M) Lower $577 Expecting lower ARP, with some higher shipping and methanol-linked natural gas costs inventoried in Q2 to flow through Q3 5 1 Represents the expected average realized price for the months of July and August. 2 See slides 24 and 28 for details on Adjusted EBITDA. Q3 2026 and FY2026 Expectations 2026F 2025 Comments Methanol production (MT) ~9,000 7,816 2026 includes full year of OCI ownership Ammonia production (MT) ~300 182 2026 includes full year of OCI ownership Methanex | The Global Methanol Leader | Investor Presentation

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Slide 6 — Company Overview

Company Overview Methanex | The Global Methanol Leader | Investor Presentation 6

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Slide 7 — Methanex is the world’s largest producer

Methanex is the world’s largest producer and supplier of methanol globally 7 11 Operating Plants1 7 Production Locations1 ~1,700 Employees1 Competitive advantage Safe, sustainable, and secure supply. Underpinned by our global integrated supply chain with dedicated shipping fleet and global production network. Adjusted EBITDA Methanol Production (equity) Methanol Average Realized Price (ARP) TSX MX Strategy We create value through our leadership in the global production, marketing, and delivery of methanol to customers. Nasdaq MEOH Safety is the top priority We are committed to the highest standard of safety and sustainability. 2021 2022 2023 2024 2025 2021 2022 2023 2024 2025 2021 2022 2023 2024 2025 $764 M 7.8 MMT $361/MT $355/MT $808 M 6.4 MMT Million metric tonnes (MMT) $/metric tonne (MT) 1 As announced on June 29, 2026, Methanex commenced the process of indefinitely idling the Titan facility in Trinidad and Tobago

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Slide 8 — Safety is our number

Our commitment to Responsible Care is unwavering; we work every day to put our values and safe practices into action to ensure the safety of our employees, contractors, visitors, and communities where we operate. Safety is our number one priority 8 Recordable Injury Rate vs. ACC1 Industry Benchmark Injuries per 200,000 hours worked 2025 Leading Indicators 1,083 Near misses 12,363 Hazard identifications 18,706 Behaviour-based safety observations In 2025, we had zero Tier 1 process safety incidents and zero lost-time injuries. Source: American Chemical Councill. 2025 data not yet available - annual data published in Q3 of the following year. 1 Methanex | The Global Methanol Leader | Investor Presentation 0.69 0.75 0.65 0.59 0.22 0.28 0.32 0.09 0.12 2021 2022 2023 2024 2025 ACC Member Companies Methanex

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Slide 9 — Reasons to Invest in

Reasons to Invest in Methanex Methanex | The Global Methanol Leader | Investor Presentation 9

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Slide 10 — Why Invest?

Why Invest? High-graded asset portfolio, underpinned by North America natural gas 10 TRANSFORMING WITH PURPOSE METHANOL: A QUIETLY CONSTRUCTIVE MARKET LEVERAGING GLOBAL CAPABILITIES DISCIPLINED CAPITAL ALLOCATION Operational excellence across manufacturing and supply chain Structurally tight methanol market Committed to a strong balance sheet, strong shareholder distributions and high-value investments Proactive management to drive free cash flow and deleveraging FOCUS ON FREE CASH FLOW CONVERSION Turning the corner from investment to impact Methanex | The Global Methanol Leader | Investor Presentation

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Slide 11 — Methanol is difficult to substitute

Methanol is difficult to substitute based on its unique chemistry, scale, ease of transport and cost 11 Essential building block used in formaldehyde, acetic acid, etc. to make raw materials for building and automotive parts, paints, paper, plastics, pharmaceuticals and silicone products. Methanol FEEDSTOCK Traditional Energy MTO Traditional chemical applications expected to grow with GDP Energy-related applications have demand upside Methanol-to-Olefins (MTO) demand Used in Methyl tert-butyl ether (MTBE) for blending in gasoline, in Dimethyl ether (DME) to replace liquified petroleum gas (LPG), and in the production of biodiesel. A cleaner burning fuel for kilns, cooking stoves, boilers, and cars and trucks in China. Emerging demand from methanol as a marine fuel. Comprised of ~14 plants in China with capacity to consume ~13-15 mmt of methanol. Economics for each plant varies depending on downstream integration. of global methanol demand ~55% of global methanol demand of global methanol demand ~30% ~15% *Green Feedstocks Including: renewable natural gas, biomass, renewable electricity. Coal ~40% Natural Gas ~59% 2026 FORECAST DEMAND ~100M MT <1%* Source: OPIS (Chemical Market Analytics) World Analysis, Spring 2026. Methanex | The Global Methanol Leader | Investor Presentation

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Slide 12 — Global methanol demand and supply dynamics

Global methanol demand and supply dynamics 12 Demand expected to grow at a ~3% compound annual growth rate over the next five years North America / Latin America Demand 10% Production 20% Europe (including Russia/CIS) Demand 10% ~75% of production from Russia Production 5% Main production hubs in US Gulf Coast and Trinidad Middle East/Africa Demand 5% Production mainly from Iran and Saudi Arabia. Production 20% China Demand 60% Production ~50% ~85% of production from coal-based plants Asia Pacific Demand 15% Production 5% Production mainly from Malaysia Source: OPIS (Chemical Market Analytics) World Analysis, Spring 2026 based on 2025 production and demand figures.

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Slide 13 — Firm capacity additions unlikely to meet growing

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 China Middle East and Russia Others Methanex Forecast Firm capacity additions unlikely to meet growing demand in the mid-term Limited new capacity Limited firm capacity additions expected in the Atlantic market. New capacity is needed to meet demand growth; greenfield projects typically take 4 to 5 years from FID to commercial production. Source: Methanex forecast based on OPIS (Chemical Market Analytics) World Analysis, Spring 2026. 13 Nameplate capacity additions (MMT)

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Slide 14 — Demand growth and limited new capacity additions lead to a growing supply gap

14 Supply growth 2025-2029 Estimated 5-year global methanol demand and supply growth 1 Demand assumes 85% MTO operating rate, in line with historical average Demand Effective supply additions At risk production 2029 required supply China 5 MMT ME & Russia 4 MMT 16 MMT 9 MMT 2-4 MMT Net Additions 5-7 MMT Shortfall 9-11 MMT 1 Demand growth and limited new capacity additions lead to a growing supply gap Demand rationalization and/or higher operating rates required to balance the market Source: Methanex, based on OPIS (Chemical Market Analytics) data

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Slide 15 — Global production capacity across seven production locations

Global production capacity across seven production locations 15 ~6.4 MMT methanol operating capacity 0.34 MMT ammonia operating capacity 6 plants 3 production locations Gas supply: financial hedges, fixed price contracts, and spot market purchases ~4 MMT methanol operating capacity 5 plants 4 production locations Gas supply: primarily methanol price linked contracts North America Rest of World1 Refer to slide 28 for more details on operating capacity by region. Strategically expanded our North American footprint to capitalize on stable and economic supply of natural gas feedstock The map is intended for illustrative purposes. 1 As announced on June 29, 2026, Methanex commenced the process of indefinitely idling the Titan facility in Trinidad and Tobago

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Slide 16 — Competitive position on attractive industry cost curve

0 10 20 30 40 50 60 70 80 90 100 Competitive position on attractive industry cost curve The global methanol cost curve is fragmented The cost of methanol production varies widely across regions due to differences in feedstock availability (natural gas vs. coal), plant efficiency, and energy costs. Marginal producers on the high end of cost curve are primarily high-cost coal and natural gas producers in China. Methanex assets competitive across a wide range of methanol prices due to position on cost curve Our growing North American asset base enhances our position on the cost curve. Global methanol demand 16 Methanex | The Global Methanol Leader | Investor Presentation Illustrative methanol industry cost curve ($/tonne) Global production (MMT) Source: Methanex, based on OPIS (Chemical Market Analytics) data

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Slide 17 — Hedging to Strike a Balance

Distribution of Henry Hub monthly price (Jan. 2015-July 2026) Hedging to Strike a Balance Years in the future Illustrative rolling ladder hedge strategy – target ~50% near- term hedges Fraction of gas requirement hedged Benefiting from lower gas prices while protecting against gas price spikes Methanex | The Global Methanol Leader | Investor Presentation Source: Natural Gas Intelligence $1 to $2 /MMBtu $2 to $3 /MMBtu $3 to $4 /MMBtu $4 to $5 /MMBtu $5 to $6 /MMBtu >$6 /MMBtu 17

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Slide 18 — ~ 25%

Fixed + variable manufacturing and G&A costs Costs include people, utilities (oxygen, CO2, power, etc.), and other operating costs Our competitive structure enables us to provide secure supply to our customers and create value throughout the cycle Focused cost discipline Natural gas • North America: target meaningful near-term hedge position of approximately 50% utilizing fixed price contracts or financial hedges. • Rest of world: natural gas price varies based on methanol prices which enables assets to be competitive across a wide range of methanol prices 1. Natural gas prices vary with methanol pricing. Percentage of cost structure based on a mid-cycle or $400/MT ARP price and $3.50/mmbtu spot Henry Hub pricing. Logistics Fleet of ~30 vessels supplemented with short- term COA vessels and spot vessel shipments Integrated supply chain allows benefit of back-haul shipments Network of owned and leased terminals worldwide Various in-region logistics capabilities including barge, rail, truck and pipeline Logistics costs vary based on oil/bunker fuel prices Logistics ~ 25% Other ~ 25% Natural gas ~50%1 18 Methanex | The Global Methanol Leader | Investor Presentation

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Slide 19 — Competitive advantage from global integrated capabilities

Competitive advantage from global integrated capabilities Extensive integrated global supply chain with a dedicated shipping fleet Unique position as the only supplier with well-established production and sales in all major regions Scale and flexibility enabling Methanex to be the supplier of choice and attract and retain customers around the world 7 Production Locations1 25 Leased Terminals ~30 Marine Vessels ~20% Industry Market Share1,2 Across 6 countries and 4 continents With 19 dual-fuel vessels that can run on methanol World’s leading methanol producer Industry leading customers Sharing of best practices and expertise with other industry members – currently hold the Chair of the Board of the Methanol Institute Where methanol is loaded / unloaded ~1,300 Rail Cars Leased and operated Methanex | The Global Methanol Leader | Investor Presentation 19 .1 As announced on June 29, 2026, Methanex commenced the process of indefinitely idling the Titan facility in Trinidad and Tobago 2 Based on the internationally traded methanol market

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Slide 20 — Disciplined approach to deploying available free cash flow

Disciplined approach to deploying available free cash flow 20 After satisfying core requirements & deleveraging… Growth Strategic investments in value-creating growth opportunities and low carbon solutions Share Buybacks Executed opportunistically when share repurchases offer an attractive investment for shareholders Target highest return Core Business Requirements Strong Balance Sheet • Sustaining capex • Interest & lease payments • Dividend • Minimum cash balance • Investment grade credit quality • Target 2.0-2.5x Leverage1 … disciplined allocation of available free cash flow 1 Refer to slide 24 for a detailed definition of Leverage. Methanex | The Global Methanol Leader | Investor Presentation

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Slide 21 — Strong adjusted free cash flow capability over a range of methanol prices

$650 $1,075 $1,450 $150 $500 $850 $300/MT $350/MT $400/MT Adjusted EBITDA Adjusted FCF (Current Capability) Additional Adjusted FCF (Post- deleveraging) $50 Strong adjusted free cash flow capability over a range of methanol prices 21 Adjusted EBITDA and Adjusted free cash flow capability to equity holders ($M) at average realized methanol prices ($/MT) Note: see slides 24 and 28 for details on Adjusted EBITDA and Adjusted free cash flow. • Based on run-rate methanol production and ammonia contribution. See slide 26 for a break-down of run-rate production. • Ammonia Adjusted EBITDA contribution is ~$30M at a $375/MT ammonia ARP • Adjusted EBITDA inclusive of $30M in synergies • Post deleveraging assumes repayment of $550M. $50 $50

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Slide 22 — Strong financial position

. Strong financial position 22 Excellent Liquidity Position Target a minimum of $300 million cash balance Consistent track record of balanced capital investment and shareholder distributions Credit Ratings Target investment grade leverage metrics. In the last 10 years, we have returned ~$1.9B to shareholders and spent ~$3.3B on organic & inorganic growth Debt Maturity Profile ($M) Strong liquidity and well-balanced debt maturities Consolidated Cash Balance1 $383M Revolving Credit Facility $400M Moody’s Ba2 Fitch BB+ S&P BB Adjusted Debt1,2 $3.3B 1 As of 30 Jun 2026. 2 For details on the metric, see the Liquidity and Capital Resources section of the 2025 MD&A. 0 100 200 300 400 500 0 200 400 600 800 1000 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Dividends Share buybacks Organic growth Inorganic growth Average realized price $M $/MT 2,100 700 700 600 300 2026 2027 2028 2029 2030 2031 2032 … 2044 Bonds

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Slide 23 — Forward-looking statements

Forward-looking statements More particularly and without limitation, any statements regarding the following are forward-looking statements: • The expected benefits of the OCI Acquisition, including benefits related to expected synergies and commodity diversification, • anticipated synergies and Methanex’s ability to achieve such synergies following closing of the OCI Acquisition, • expected demand for methanol, including demand for methanol energy uses, and its derivatives, • expected new methanol supply or restart of idled capacity and timing for start-up of the same, • expected increase in methanol production of assets to be acquired as a part of the OCI Acquisition, • expected shutdowns (either temporary or permanent) or restarts of existing methanol supply (including our own facilities), including, without limitation, the timing and length of planned maintenance outages, • expected methanol and energy prices, • expected levels of methanol purchases from traders or other third parties, • expected levels, timing and availability of economically priced natural gas supply to each of our plants, • capital committed by third parties towards future natural gas exploration and development in the vicinity of our plants, • our expected capital expenditures and anticipated timing and rate of return of such capital expenditures, • anticipated operating rates of and production at our plants, • expected operating costs, including natural gas feedstock costs and logistics costs, • expected tax rates or resolutions to tax disputes, • expected cash flows, cash balances, earnings capability, debt levels and share price, • availability of committed credit facilities and other financing, • our ability to meet covenants associated with our long-term debt obligations, • our shareholder distribution strategy and expected distributions to shareholders, • commercial viability and timing of, or our ability to execute future projects, plant restarts, capacity expansions, plant relocations or other business initiatives or opportunities, • our financial strength, debt reduction and deleveraging plans, and ability to meet future financial commitments, • expected global or regional economic activity (including industrial production levels) and gross domestic product growth, • potential impacts of tariffs on global economic activity and Methanex, • geopolitical events in the Middle East and their impact on methanol supply and demand conditions, • expected outcomes of litigation or other disputes, claims and assessments, and • expected actions of governments, governmental agencies, gas suppliers, courts, tribunals or other third parties. Having in mind these and other factors, investors and other readers are cautioned not to place undue reliance on forward-looking statements. They are not a substitute for the exercise of one’s own due diligence and judgment. The outcomes implied by forward-looking statements may not occur and we do not undertake to update forward-looking statements except as required by applicable securities laws. However, forward-looking statements, by their nature, involve risks and uncertainties that could cause actual results to differ materially from those contemplated by the forward- looking statements. The risks and uncertainties primarily include those attendant with producing and marketing methanol and successfully carrying out major capital expenditure projects in various jurisdictions, including, without limitation: • Unforeseen difficulties in integrating the business operations or assets purchased pursuant to the OCI Acquisition into our business and operations, • failure to realize the expected strategic, financial and other benefits of the OCI Acquisition in the timeframe anticipated or at all, • unexpected costs or liabilities associated with the OCI Acquisition, • increased indebtedness of Methanex, • conditions in the methanol and other industries including fluctuations in the supply, demand and price for methanol and its derivatives, including demand for methanol for energy uses, • the price of natural gas, coal, oil and oil derivatives, • our ability to obtain natural gas feedstock on commercially acceptable terms to underpin current operations and future production growth opportunities, • the ability to carry out corporate initiatives and strategies, • actions of competitors, suppliers and financial institutions, • conditions within the natural gas delivery systems that may prevent delivery of our natural gas supply requirements, • competing demand for natural gas, especially with respect to any domestic needs for gas and electricity, • actions of governments and governmental authorities, including, without limitation, implementation of policies or other measures that could impact the supply of or demand for methanol or its derivatives, • changes in laws or regulations, • import or export restrictions, anti-dumping measures, increases in duties, taxes and government royalties and other actions by governments that may adversely affect our operations or existing contractual arrangements, • world-wide economic conditions, and • other risks described in our 2025 Annual Management’s Discussion and Analysis. We believe that we have a reasonable basis for making such forward-looking statements. The forward-looking statements in this document are based on our experience, our perception of trends, current conditions and expected future developments as well as other factors. Certain material factors or assumptions were applied in drawing the conclusions or making the forecasts or projections that are included in these forward-looking statements, including, without limitation, future expectations and assumptions concerning the following: • Methanex’s ability to realize the expected strategic, financial and other benefits of the OCI methanol acquisition in the timeframe anticipated or at all, • the supply of, demand for and price of methanol, methanol derivatives, natural gas, coal, oil and oil derivatives, • the supply of, demand for and price of ammonia • our ability to procure natural gas feedstock on commercially acceptable terms, • operating rates of and production at our facilities, • receipt or issuance of third-party consents or approvals or governmental approvals related to rights to purchase natural gas, • the establishment of new fuel standards, • operating costs, including natural gas feedstock and logistics costs, capital costs, tax rates, cash flows, foreign exchange rates and interest rates, • the availability of committed credit facilities and other financing, • our ability to sustain the designed operating rates of the Geismar 3 plant, • global and regional economic activity (including industrial production levels) and gross domestic product growth, • absence of a material negative impact from major natural disasters, • absence of a material negative impact from changes in laws or regulations, • absence of a material negative impact from political instability in the countries in which we operate, and • enforcement of contractual arrangements and ability to perform contractual obligations by customers, natural gas and other suppliers and other third parties. This presentation, our Annual 2025 Management’s Discussion and Analysis ("MD&A") as well as comments made during the Second Quarter 2026 investor conference call contain forward-looking statements with respect to us and our industry. These statements relate to future events or our future performance. All statements other than statements of historical fact are forward-looking statements. Statements that include the words "believes," "expects," "may," "will," "should," "potential," "estimates," "anticipates," "aim," "goal", "targets", "plan," "predict" or other comparable terminology and similar statements of a future or forward-looking nature identify forward-looking statements. 23

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Slide 24 — Non-GAAP Measures

24 Methanex | The Global Methanol Leader | Investor Presentation Non-GAAP Measures • Note that Adjusted EBITDA, Adjusted free cash flow , Adjusted debt, and Leverage are non-GAAP measures that do not have any standardized meaning prescribed by GAAP and therefore, are unlikely to be comparable to similar measures presented by other companies. • For description and historical Adjusted EBITDA and Adjusted debt, refer to Additional Information - Non-GAAP Measures in the Company’s 2025 Annual MD&A and in the Company’s most recent quarterly MD&A. • Adjusted free cash flow, both historical and forward-looking, is useful as it provides a measure of our cashflow generation capability and differs from the most comparable GAAP measure, Cashflow from operating activities, as it is adjusted to deduct Repayments of lease obligations, sustaining capex (represented on the face of the cash flow statement by the Property, Plant and Equipment line under the Cashflow used in investing activities), Interest paid, and Distributions to non-controlling interests. • Methanex Run Rate Adjusted EBITDA and Adjusted free cash flow reflects Methanex’s proportionate ownership interest. Methanex run-rate production is based on a normalized supply chain and plants operating at full capacity except for plants which are experiencing gas supply shortages in which case a near term estimate on production is provided by management. Run rate production is ~9.3MMT of methanol. Adjusted EBITDA also includes ammonia contribution of ~$30M at a $375/MT ammonia ARP and includes of $30M in synergies. • The unhedged portion of our North American natural gas requirements are purchased under contracts at spot prices. Estimates assume Henry Hub natural gas price of ~$3.50/mmbtu based on near-term forward curve. Gas contracts outside of North America are methanol sharing contracts with a base price for natural gas plus sharing as methanol prices increase. • Leverage is defined as Adjusted debt divided by Adjusted EBITDA. $550M of debt repayment is assumed to reach post-deleveraged balance sheet. • Adjusted debt is useful as it helps the company monitor its near-term capital allocation priority to direct excess cash to de-lever the balance sheet. It differs from the most comparable GAAP measure, Long-term Debt and Lease Obligations, as it excludes long-term debt and lease obligations attributable to the non-controlling shareholders' interests in entities we control but do not fully own and includes an amount representing our 63.1% share of the Atlas facility and 50% share of the Natgasoline facility.

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Slide 25 — Modeling Information

Modeling Information Methanex | The Global Methanol Leader | Investor Presentation 25

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Slide 26 — Modeling Information 1/3

Modeling Information 1/3 Run rate financial profile (Methanex share) Gas cost structure 1. Refer to slide 28 for details. 2. $50/MT change in average realized price (ARP) impacts portfolio gas cost/MT by ~$6. 3. Average realized price is calculated as methanol revenue divided by the total methanol sales volume. ~35 mmbtu/MT Portfolio efficiency ~$3.75/mmbtu2 Avg. gas cost at $400/MT with Henry Hub forward curve of ~$3.50/mmbtu ~35-40% Americas ~25-30% Europe ~15-20% China ~15-20% Asia Pacific (ex. China) Sales mix ~35% Of production has gas costs linked to Average Realized Price (ARP)3 ~$500M Depreciation + Amortization ~$150M Run-rate sustaining CapEx Run rate equity production and capital expenditure ~9.0 MMT 2026E methanol production 26 Methanex | The Global Methanol Leader | Investor Presentation None planned 2026 turnarounds 9.3 MMT Run-rate annual methanol production1 ~25% Effective tax rate ~0.3 MMT 2026E ammonia production

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Slide 27 — Modeling Information 2/3

27 Adjusted EBITDA and Adjusted free cash flow capability to equity holders ($M) at average realized methanol prices ($/MT) Reconciliation of Adjusted EBITDA to Adjusted Free Cash Flow capability: Based on run-rate production – see slide 28 for details. See slide 24 for further details on Adjusted EBITDA and Adjusted free cash flow. 1 Post deleveraging assumes repayment of $550M $650 $1,075 $1,450 $150 $500 $850 $300/MT $350/MT $400/MT Adjusted EBITDA $50 $50 $50 Additional Adjusted FCF (Post-deleveraging) Methanex Share – Non-GAAP Include amounts attributable to Non-Controlling Interests Exclude Associates GAAP Financial Statements Adjusted EBITDA (at $350/MT) 1,075 Debt and Lease Interest1 190 15 (35) 170 Lease Payments 105 35 (10) 130 Sustaining Capital 150 10-15 (10-15) 150 Cash taxes 80 10 - 90 Adjusted FCF (at $350/MT) 550 Modeling Information 2/3 Adjusted FCF (Current Capability) Methanex | The Global Methanol Leader | Investor Presentation

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Slide 28 — Modeling Information 3/3

Modeling Information 3/3 Operating capacity (MMT)1 Run-rate production (MMT)2 Number of operating plants Gas supply Medicine Hat, Canada 0.56 ~.56 1 Fixed price contracts and spot market Geismar, USA 4.0 ~4.0 3 Financial hedges, fixed price contracts, and spot market Beaumont, USA 1.76 ~1.61 2 Financial hedges and spot market Damietta, Egypt 0.63 ~0.55 1 Methanol price linked contract Trinidad and Tobago 0.86 ~0.80 1 Methanol price linked contract New Plymouth, New Zealand 0.85 ~0.40 1 Methanol price linked contracts Punta Arenas, Chile 1.70 ~1.40 2 Fixed price contracts and methanol price linked contracts 10.4 (MMT, methanol) 9.3 (MMT, methanol) 11 1 Annual operating capacity reflects, among other things, average expected plant outages, turnarounds and average age of the facility’s catalyst. Actual production for a facility in any given year may be higher or lower than operating capacity due to several factors, including natural gas composition or the age of the facility’s catalyst. Methanex’s share shown for Natgasoline in Beaumont (50%) and Egypt (50%). Operating capacity excludes plants in Trinidad (Atlas, 63.1% ownership), New Zealand (Motunui 1 and Waitara Valley) and Netherlands (Delfzil) as these plants have been idled as they do not currently have access to an economic gas supply to operate. Capacity shown is for methanol unless stated otherwise. As announced on June 29, 2026, Methanex commenced the process of indefinitely idling the Titan facility in Trinidad and Tobago 2 See slide 24 for more details on run-rate production. 28

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Slide 29 — Appendix

Appendix Methanex | The Global Methanol Leader | Investor Presentation 29

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Slide 30 — Methanol demand applications

Methanol demand applications 30 Applications % of global demand1 End uses Traditional chemical applications Formaldehyde ~25% Used as wood adhesive for plywood, particleboard and other engineered wood products Also used as raw material for a variety of building and automotive products Acetic acid ~11% Used to produce a wide variety of products including adhesives, paper, paint, plastics, resins, solvents, pharmaceuticals and textiles Other traditional ~19% Used to produce a wide range of products including adhesives, coatings, plastics, film, textiles, paints, solvents, paint removers, polyester resins/fibers, silicone products Energy-related applications Methyl tert- butyl ether (MTBE) ~11% Used as an oxygenate blending into gasoline to contribute octane and reduce the amount of harmful exhaust emissions from motor vehicles Fuel applications ~10% Used as an alternative cleaner-burning fuel for transportation, industrial boilers and kilns, and cooking stoves Dimethyl ether (DME) ~5% A clean-burning fuel that is used as a substitute for liquified petroleum gas (LPG) for household cooking and heating. Can be used as a clean-burning substitute for diesel fuel in transportation Biodiesel ~6% A renewable fuel made from plant oils or animal fats that uses methanol in the production process Methanol-to- Olefins Methanol-to- olefins (MTO) ~13% Used as an alternative feedstock to produce light olefins (ethylene and propylene) to produce various everyday products used in packaging, textiles, plastic parts/containers and auto components Source: OPIS (Chemical Market Analytics) World Analysis

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Slide 31 — Chemicals value chain

Chemicals value chain 31 BASE CHEMICALS AND INTERMEDIATES FEEDSTOCKS CRUDE OIL (REFINERY) NAPHTHA (FRACTIONATOR) LPG ETHANE PROPANE BUTANE SYNGAS TOLUENE XYLENE BENZENE BUTADIENE PROPYLENE PHENOL/ACETONE EPOXIES/RESINS POLYSTYRENE POLYESTER NYLON POLYURETHANES ACRYLICS POLYPROPYLENE ELASTOMERS/ABS ACRYLIC FIBERS EVA/ACETYLS VAM EDC/VCM/PVC ETHYLENE GLYCOL POLYETHYLENE UREA/UAN AMMONIA DAP/MAP/PHOS METHANOL MTBE CYCLOHEXANE CUMENE STYRENE MDI/TDI PTA AMMONIA METHANOL ETHYLENE PROPYLENE OXIDE ACRYLONITRILE ETHYLENE OXIDE ACETIC ACID ACETYLENE NATURAL GAS COAL SOLVENTS, INTERMEDIATE PLASTICS, ADHESIVES, COATINGS PACKAGING FOAM, INSULATION CLOTHING, BOTTLES (PET), FABRIC FABRIC, CARPET, AUTOMOTIVE FOAM INSULATION, FURNITURE, AUTO COATINGS INGREDIENT, ADHESIVES PLASTICS, PACKAGING, DURABLES SYNTHETHIC RUBBER, PLASTICS CLOTHING ADHESIVES, COATINGS INGREDIENT ADHESIVES, INTERMEDIATE PLASTICS, CONSTRUCTION COALANT/ANTIFREEZE, INTERMEDIATE PLASTICS, PACKAGING, DURABLES INTERMEDIATE, NITROGEN FERTILIZER PHOSPHATE FERTILIZER (AG) NITROGEN FERTILIZER (AG) INTERMEDIATE, FUEL BLENDING GASOLINE BLENDING UREA/AN PRODUCTS MARKETS/USES BUTADIENE PROPYLENE ETHYLENE AROMATICS METHANOL AMMONIA OLEFINS Source: UBS research report FORMALDEHYDE Methanex | The Global Methanol Leader | Investor Presentation

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Slide 32 — Methanol-to-olefins (MTO) value chain

Ethylene Polyethylene Food packaging, plastic bags EDC PVC Pipes, window frames Textile, bottles Insulation cups, models EO MEG Ethyl benzene Styrene PET Polystyrene Propylene Polypropylene Food container, bottles ACN Synthetic rubbers Household & consumer goods Building insulation, bedding Insulation cups, models PO Polyether polyols Cumene Phenol Polyurethane Polycarbonates/ Phenolic resins Methanol-to-olefins (MTO) value chain MTO production mostly integrated with downstream products and subject to downstream alternative economics. Synthesis Gas Methanol Natural Gas or Coal Feedstock 32 Methanex | The Global Methanol Leader | Investor Presentation

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Slide 33 — Embedding sustainability:

Solutions focused and committed to continual improvement Embedding sustainability: from strategy to action1 Methanex | The Global Methanol Leader | Investor Presentation 33 1. For a full list of our sustainability commitments see our 2025 Sustainability Report 2. By 2030 from 2019 levels 3. Tonnes of CO₂e per tonne of product, as of the end of 2025. 4. Additional drivers include our manufacturing asset mix, focus on improving plant reliability, and emissions reduction projects Achieve zero significant environmental spills Continuously improve our personal and process safety performance Protecting people and advancing stewardship Further progress and integrate inclusive recruitment and engagement strategies Supporting our workforce and communities Reduce Scope 1 and Scope 2 GHG emissions intensity by 10%2 Advancing solutions for a low-carbon future COMMITMENTS COMMITMENT COMMITMENTS 10.7% ​reduction in emissions intensity3, achieving our target 5 years early. A key driver4 was achieving full production from our G3 plant PROGRESS IN 2025 Achieved with over 20kMT in low-carbon methanol sold in the second half of the year. PROGRESS Zero Tier 1 process safety incidents, zero lost-time injuries, and 0.12 recordable injuries per 200k hours worked Zero significant environmental spills PROGRESS Launched a new global Employee Resource Group and Inclusive Recruitment Guide Achieve at least 10kMT of low-carbon methanol sales

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Slide 34 — Methanol’s role

Methanol’s role in the low-carbon economy Methanex is evaluating economically competitive low-carbon methanol production pathways to align with customer demand. We are currently assessing the following technologies: • Carbon capture • E-methanol • Biomethanol Our Beaumont facility has produced biomethanol since 2018 under its previous ownership Methanex | The Global Methanol Leader | Investor Presentation 34 GREEN HYDROGEN CAPTURED CO₂ NATURAL GAS BIOGENIC FEEDSTOCKS GREY METHANOL BLUE METHANOL BIOMETHANOL E-METHANOL CARBON CAPTURE, UTILIZATION, AND STORAGE (CCUS) -50 to +32 grams CO₂e/MJ* 10 to 30 grams CO₂e/MJ* 100 grams CO₂e/MJ* 55 to 85 grams CO₂e/MJ* CO₂ Multiple methanol pathways PRE-FEED STUDY IN MEDICINE HAT METHANEX TODAY FEASIBILITY STUDIES CONDUCTED GREEN METHANOL CAPABILITIES IN GEISMAR AND BEAUMONT *All lifecycle values of grams CO2e/MJ are approximate Emissions values courtesy of Argus Media 2024 and the Methanol Institute

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Slide 35 — Reducing emissions and exploring paths to low-carbon methanol

Providing solutions for the emerging low-carbon market supports our strategy of global methanol leadership Reducing emissions and exploring paths to low-carbon methanol REDUCING EMISSIONS FROM OUR OPERATIONS PROGRESSING LOW-CARBON SOLUTIONS Efficiently Designed Growth Projects We look for opportunities to simultaneously increase production and reduce GHG intensity. Our G3 plant has one of the lowest emission intensity profiles in the industry and can produce 1.8 million tonnes of methanol annually. Carbon Capture, Utilization, and Storage (CCUS) We partnered with Entropy Inc. in 2024 to conduct a Pre-FEED study for CCUS deployment in Medicine Hat. The project requires government support to be viable, and if it proceeds, would reduce the plant's Scope 1 and 2 GHG emissions by 75%. Biomethanol from Renewable Natural Gas (RNG) We executed a multi-year RNG contract in 2024 that will allow us to produce approximately 55,000 tonnes of low-carbon methanol from 2025 to 2028 at our Geismar facility. This RNG will come from a landfill. Our Beaumont facility has produced biomethanol since 2018 under its previous ownership, and we continue to supply to customers post-acquisition. Operational Improvements at Manufacturing Sites We systematically identify, evaluate and implement efficiency and emissions reduction projects and have invested more than $15 million of capital into energy efficiency and reliability projects with GHG reduction benefits at existing sites. We entered a renewable electricity contract, backed by Renewable Energy Certificates, in Geismar to cover a portion of one plant’s electricity requirements starting in late 2024. We secured 12.4 MW of capacity across two solar projects. Methanex | The Global Methanol Leader | Investor Presentation 35

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Slide 36 — With Methanex leading the way, fleets can stay on course to decarbonization

Methanex has been there from the beginning, developing methanol as a marine fuel. We are well-positioned to help transition the shipping industry to a low-carbon future, having led the way in the marine fuel industry for over a decade. With Methanex leading the way, fleets can stay on course to decarbonization 36 Methanex | The Global Methanol Leader | Investor Presentation 2013 First series of dual-fuel vessels ordered Advancing methanol marine fuel technology since 2013 Engine design & development Early investor in CRI 2015 Stena Line & Wartsila collaboration on first methanol ferry 2016 WFS 1st gen dual-fuel vessels launched (7) Continuously demonstrating the feasibility of methanol as a marine fuel since 2016 2019 WFS 2nd gen dual-fuel vessels launched (4) 100,000+ hours achieved 2020 IMO guidelines approved 2021 WFS 3rd gen dual-fuel vessels (2) World's first barge-to- ship bunkering WFS 3rd gen dual-fuel vessels (5) ISCC-certification for bio-methanol production Multiple methanol engine providers sign on 2023 200,000+ hours achieved WFS 3rd gen dual-fuel vessels (1) World's first ship-to-ship bunkering World's first methanol net-zero voyage 2024 Fastwater Project 2017-18 World's first methanol fishing vessel piloted in China Cajun Sun Creole Sun 2022 ~130+ methanol vessels operating or on order Cajun Sun 2025 ARA & S. Korea Commercial Methanol Bunkering Launched 2026 U.K.’s First Biomethanol Bunkering Service Launched

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Slide 37 — Investor Relations

Investor Relations T: 604 661 2600 [email protected] www.methanex.com linkedin.com/company/methanex-corporation @Methanex 37 Methanex | The Global Methanol Leader | Investor Presentation

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