Vesuvius PLC — AGM Information 2025

May 16, 2025

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PUBLIC LIMITED COMPANY

SHAREHOLDER RESOLUTIONS

VESUVIUS PLC

Company Number: 8217766

(the "Company")

VESUVIUS PLC MEMBERS' RESOLUTIONS PASSED AT THE 2025 ANNUAL GENERAL MEETING HELD 16 MAY 2025

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 16 May 2025 at the offices of Linklaters LLP, One Silk Street, London EC2Y 8HQ, and is submitted in accordance with Listing Rule 6.4.2 of the Financial Conduct Authority.

ORDINARY RESOLUTION

Resolution 21 - Authority to amend the aggregate cap on the remuneration of Non-executive Directors

IT WAS RESOLVED THAT with effect from the conclusion of the aggregate cap on the remuneration of the Directors for the purposes of Article 79 (Directors' fees) of the Articles of Association of the Company be amended to £750,000 per annum in aggregate or such higher amount as the Directors may from time to time determine to take account of the effect of inflation from the date of the AGM (or as nearly thereto as is convenient), as measured by the Retail Price Index or such other index as the Directors may consider appropriate for such purpose.

Centified as a true copy

Henry Knowles Company Secretary, Vesuvius plc