MEOH Methanex Corporation

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF SEPTEMBER 2019

COMMISSION FILE NUMBER: 0-20115

METHANEX CORPORATION

(Registrant’s Name)

SUITE 1800, 200 BURRARD STREET, VANCOUVER, BC V6C 3M1 CANADA

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F:

Form 20-F ☐                        Form 40-F ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

INCORPORATION BY REFERENCE

The underwriting agreement dated as of September 9, 2019, among the Company and HSBC Securities (USA) Inc., J.P. Morgan Securities LLC and RBC Capital Markets, LLC (as representatives of the several Underwriters), included as Exhibit 99.1 of this Form 6-K (Commission File No. 0-20115), furnished to the Commission on September 10, 2019, is incorporated by reference as an exhibit to the Registration Statement on Form F-10 of the Registrant (Commission File No. 333-233405).