UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION

UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934

OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number: 001-38441

ChampionX Corporation

(Exact name of registrant as specified in its charter)

42 rue Saint-Dominique, Paris, France 75007

5599 San Felipe, Houston, Texas, U.S.A. 77056

62 Buckingham Gate, London, United Kingdom SW1E 6AJ

Parkstraat 83, The Hague, The Netherlands 2514 JG

(713) 513-2000

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Common Stock, par value $0.01 per share

(Title of each class of securities covered by this Form)

None

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)	☒
Rule 12g-4(a)(2)	☐
Rule 12h-3(b)(1)(i)	☒
Rule 12h-3(b)(1)(ii)	☐
Rule 15d-6	☐
Rule 15d-22(b)	☐

Approximate number of holders of record as of the certification or notice date: 1.

Pursuant to the requirements of the Securities Exchange Act of 1934, ChampionX Corporation has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

	CHAMPIONX CORPORATION
Date: July 28, 2025	By:	/s/ Samantha Blons
		Name: Samantha Blons
		Title: Secretary