CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, Mark Jarvis, of Giga Metals Corporation, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)  the annual report on Form 20-F of Giga Metals Corporation for the year ended December 31, 2018 (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)  the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Giga Metals Corporation.

Dated: April 28, 2020

"Mark Jarvis"                                                              
Mark Jarvis
Chief Executive Officer
(Principal Executive Officer)