Section 906 Certificate

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, I, Stephen Webster, the Chief Financial Officer of Luxfer Holdings PLC, a public limited company incorporated under English law (the “Company”), do hereby certify, to my knowledge, that:

•the Annual Report on Form 10-K for the year ended December 31, 2023 (the “Report”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

•information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 27, 2024	/s/ STEPHEN WEBSTER
	Stephen Webster Chief Financial Officer