Keryx Biopharmaceuticals (KERX) 10-Q 2018 Q2 Quarterly report

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER OF

KERYX BIOPHARMACEUTICALS, INC.

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 quarterly report of Keryx Biopharmaceuticals, Inc. (the “Company”) on Form 10-Q for the quarterly period ended June 30, 2018 as filed with the Securities and Exchange Commission (the “Report”), I, Scott A. Holmes, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, based on my 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: August 9, 2018	/s/ Scott A. Holmes
	Scott A. Holmes
	Chief Financial Officer
	Principal Financial and Accounting Officer