Report of Foreign Issuer (6-k)

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

under the Securities Exchange Act of 1934

For the month of March, 2020

Commission File Number: 000-25270

Ballard Power Systems Inc.

(Translation of registrant’s name into English)

9000 Glenlyon Parkway,
Burnaby, BC

V5J 5J8

Canada
(Address of principal executive offices)

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

Form 20-F o

Form 40-F x

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) o

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) o

DOCUMENTS INCORPORATED BY REFERENCE

Exhibit 99.1 to this Form 6-K of Ballard Power Systems Inc. is hereby incorporated by reference into the Registrant’s registration statement on Form F-10 (File No. 333-225493), and to be a part thereof from the date on which this report is submitted, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

Exhibit No.		Description

99.1		Material Change Report dated March 19, 2020

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.