Methanex Corporation (the “Company” or “Methanex”) (TSX:MX) (NASDAQ:MEOH) announced today that its Board of Directors has approved a Normal Course Issuer Bid (“NCIB”) whereby the Company will purchase for cancellation up to 3,810,464 common shares ("Shares"), representing 5% of the 76,209,280 Shares issued and outstanding as of September 16, 2021. Purchases under the NCIB will commence on September 24, 2021 and end no later than September 23, 2022. Purchases will be made from time to time at the then current market price of the Shares and all Shares purchased under the NCIB will be cancelled.

John Floren, President and CEO of Methanex commented, “We are pleased to announce a new share repurchase program which builds on our long track record of returning excess cash to shareholders. Our strong financial position and a continuing robust methanol price environment enable us to generate meaningful cash flow to maintain our business, fund the remaining capital costs for our Geismar 3 project and return excess cash to shareholders.”

Purchases pursuant to the NCIB will be made on the open market through the facilities of the NASDAQ Global Select Market (“NASDAQ”) and alternative trading systems in the United States pursuant to Rule 10b-18 under the U.S. Securities Exchange Act of 1934. Subject to certain exceptions for block purchases, daily repurchases under the program through the NASDAQ and alternative trading systems in the United States will not exceed 25% of the Company’s average daily trading volume for the four week period preceding the date of purchase. The Company has entered into an automatic securities purchase plan with its broker in connection with purchases to be made under the program.

Methanex is a Vancouver-based, publicly traded company and is the world's largest producer and supplier of methanol to major international markets. Methanex shares are listed for trading on the Toronto Stock Exchange in Canada under the trading symbol "MX" and on the NASDAQ Global Select Market in the United States under the trading symbol "MEOH". Methanex can be visited online at www.methanex.com.

FORWARD-LOOKING INFORMATION WARNING

This press release contains certain 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 word "will" or other comparable terminology and similar statements of a future or forward-looking nature identify forward-looking statements. More particularly and without limitation, any statements regarding the following are forward-looking statements:

• Methanex’s expected cash flows, cash balances, earnings capability, debt levels and share price,
• Methanex’s financial strength and ability to meet future financial commitments, and
• Methanex's shareholder distribution strategy and expected distributions to shareholders.

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:

• the supply of, demand for, and price of methanol, methanol derivatives, natural gas, coal, oil and oil derivatives,
• operating rates of our facilities,
• operating costs including natural gas feedstock and logistics costs, capital costs, tax rates, cash flows, foreign exchange rates and interest rates,
• the expected timing and capital cost of our Geismar 3 Project, and
• global and regional economic activity (including industrial production levels) and GDP growth.

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:

• conditions in the methanol and other industries including fluctuations in the supply, demand for and price of 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 growth opportunities,
• the ability to successfully carry out corporate initiatives and strategies,
• actions of competitors, suppliers and financial institutions,
• world-wide economic conditions, and
• other risks described in our 2020 Annual Management's Discussion and Analysis and our Second Quarter 2021 Management's Discussion and Analysis.

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 anticipated in forward-looking statements may not occur and we do not undertake to update forward-looking statements except as required by applicable securities laws.

For further information, contact:

Kim Campbell
Director, Investor Relations
Methanex Corporation
604 661-2600 or Toll Free: 1 800 661 8851
www.methanex.com