Cibus (CBUS) 10-K 2017 FY Annual report

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Calyxt, Inc. (the “Company”)on Form 10-K for the period ending December 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1) 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 the Company.

Date: March 13, 2018

/s/ Federico A. Tripodi

Federico A. Tripodi

Chief Executive Officer

(Principal Executive Officer)

/s/ Bryan W.J. Corkal

Bryan W.J. Corkal

Chief Financial Officer

(Principal Financial Officer)