30 June 2025

Victrex plc

Director Declaration - External Appointment

Victrex plc is an innovative world leader in high performance polymer solutions, delivering sustainable products which support CO2 reduction and enable environmental and societal benefit in multiple end-markets. The Group has been notified that Janet Ashdown, a Non-Executive Director of the Company and Chair of the Remuneration Committee, has accepted a nomination to be a Non-Executive Director to the Board of Synthomer plc (LSE: SYNT). Synthomer is a FTSE listed global speciality chemicals company focused on coatings and construction, adhesives and health and protection. The appointment is effective from 1 July 2025.

Janet's responsibilities at Victrex remain unchanged.  Her career includes working for BP plc for over 30 years, holding a number of international positions. Until the end of 2012, Janet was Chief Executive Officer of Harvest Energy Ltd.

Her other Board roles include being a Non-Executive Director and Chair of the Corporate Sustainability and Remuneration Committees at RHI Magnesita NV. and a Non-Executive Director at Stolt-Nielsen Limited.

This announcement is made pursuant to the UKLR 6.4.9(2) R.

Enquiries:

Victrex plc:

Andrew Hanson, Director of Investor Relations, Corporate Communications & ESG

+44 (0) 1253 898121 / +44 (0) 7809 595831

About Victrex:

Victrex is an innovative world leader in high performance polymer solutions, focused on the strategic markets of Automotive, Aerospace, Energy & Industrial, Electronics and Medical. Every day, millions of people rely on products or applications which contain our sustainable materials, from smartphones, aeroplanes and cars to oil & gas operations and medical devices. With over 40 years' experience, we are moving beyond the polymer into semi-finished and finished products which shape future performance for our customers and our markets, enable environmental and societal benefit for our customers and drive value for our shareholders. Find out more at www.victrexplc.com