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☐ ☑ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 40 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 OR ANNUAL REPORT PURSUANT TO SECTION 13 ( a ) OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 Commission File Number 000-20115 METHANEX CORPORATION ( Exact name of Registrant as specified in its charter ) not applicable ( Translation of Registrant's name into English ( if applicable ) ) CANADA ( Province or other jurisdiction of incorporation or organization ) 2860 ( Primary Standard Industrial Classification Code Number ( if applicable ) ) not applicable ( I.R.S. Employer Identification Number ( if applicable ) ) 1800 Waterfront Centre , 200 Burrard Street , Vancouver , British Columbia , Canada V6C 3M1 Telephone : ( 604 ) 661-2600 ( Address and telephone number of Registrant's principal executive offices ) CT Corporation System , 28 Liberty Street , New York , New York 10005 Telephone : 212-894-8940 ( Name , address ( including zip code ) and telephone number ( including area code ) of agent for service in the United States ) Title of each class Common Shares Securities registered or to be registered pursuant to Section 12 ( b ) of the Act . Trading Symbol MEOH Name of each exchange on which registered NASDAQ Global Select Market Securities registered or to be registered pursuant to Section 12 ( g ) of the Act . None ( Title of Class ) Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act . 4.25 % Senior Notes due December 1 , 2024 5.125 % Senior Notes due October 15 , 2027 5.25 % Senior Notes due December 15 , 2029 5.65 % Senior Notes due December 1 , 2044 ( Title of Class ) For annual reports , indicate by check mark the information filed with this Form : × Annual Information Form × Audited Annual Financial Statements