Vesuvius PLC — AGM Information 2022

May 18, 2022

PUBLIC I IMITED COMPANY

SHAREHOLDER RESOLUTION

VESUVIUS PLC

Company Number: 8217766

(the "Company")

VESUVIUS PLC MEMBERS' RESOLUTION PASSED AT THE 2022 ANNUAL GENERAL MEETING HELD 18 MAY 2022

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 18 May 2022 at the offices of Linklaters LLP, One Silk Street, London EC2Y 8HQ, and is submitted in accordance with Listing Rule 9.6.2 of the Financial Conduct Authority.

ORDINARY RESOLUTION

Resolution 20 - Renewal of the Vesuvius Share Plan

IT WAS RESOLVED that the rules of the Vesuvius Share Plan (the "Plan") the main features of which are summarised in the AGM notice, and a copy of which was produced in draft to the Meeting and for the purposes of identification initialled by the Chairman, be and are hereby approved and:

(a) the Remuneration Committee of the Company's Board be authorised to do all acts and things which it considers necessary or desirable to carry the same into effect; and

(b) the Remuneration Committee of the Company's Board be authorised to establish any schedules or sub-plans to the Plan for the benefit of employees outside the UK containing such modifications as may be necessary or desirable to take account of securities laws, exchange control and tax legislation, provided that any shares made available under such schedules or subplans are treated as counting against any limits on individual participation or overall participation in the Plan.

Certified as a true copy

Henry Knowles Company Secretary, Vesuvius plc