Vesuvius PLC — AGM Information 2021

May 12, 2021

PUBLIC LIMITED COMPANY

SHAREHOLDER RESOLUTION

VESUVIUS PLC

Company Number: 8217766

(the "Company")

VESUVIUS PLC MEMBERS' RESOLUTION PASSED AT THE 2021 ANNUAL GENERAL MEETING HELD 12 MAY 2021

The following resolution was duly passed by the requisite majority of the members of the Company at the Annual General Meeting held at 11:00am on 12 May 2021 at 165 Fleet Street, London, EC4A 2AE, and is submitted in accordance with Listing Rule 9.6.2 of the Financial Conduct Authority.

SPECIAL RESOLUTION

Resolution 20 – Approval of amended Articles of Association

IT WAS RESOLVED that, with effect from the conclusion of the AGM, the amended Articles of Association produced to the Meeting and signed by the Chairman for the purpose of identification, be adopted as the Articles of Association of the Company in substitution for, and to the exclusion of, the Company's existing Articles of Association.

Certified as a true copy

Henry Knowles Company Secretary, Vesuvius plc