Synthomer PLC

Board/Management Information • Dec 12, 2025

National Storage Mechanism | Additional information

RNS Number : 2855L

Synthomer PLC

12 December 2025

Synthomer plc

Directorate changes

Synthomer plc ('Synthomer' or the 'Company') today announces a number of changes to the Board. As previously announced, Ian Tyler and Roberto Gualdoni have now stepped down as independent Non-Executive Directors from the Synthomer Board as planned. Independent Non-Executive Director Janet Ashdown succeeds Ian as Senior Independent Director, and Independent Non-Executive Director Jonathan Silver, who has recent and relevant financial experience for the purposes of the UK Corporate Governance Code, succeeds Ian as Chair of the Audit Committee.

This notification is made in accordance with paragraph 6.4.6R of the UK Listing Rules of the Financial Conduct Authority.

Further information:

Investors: Faisal Tabbah, Vice President Investor Relations	Tel: +44 (0) 1279 775 306
Media: Nick Hasell, FTI Consulting	Tel: +44 (0) 203 727 1340

Notes

Synthomer plc is a leading supplier of high-performance, highly specialised polymers and ingredients that play vital roles in key sectors such as coatings, construction, adhesives, and health and protection - growing markets for customers who serve billions of end users worldwide. Headquartered in London, UK and listed there since 1971, we employ c.3,800 employees across our five innovation centres of excellence and 29 manufacturing sites across Europe, North America, Middle East and Asia. With more than 6,000 blue-chip customers and £2.0bn in continuing revenue in 2024, our business is built around three divisions, serving customers in attractive end markets where demand is driven by global megatrends including urbanisation, demographic change, climate change and sustainability, and shifting economic power.

In Coatings & Construction Solutions, our specialist polymers enhance the sustainability and performance of a wide range of coatings and construction products. We serve customers in applications including architectural and masonry coatings, mortar modification, waterproofing and flooring, fibre bonding, and energy solutions. In Adhesive Solutions our products help our customers bond, modify and compatibilise surfaces and components for applications including tapes and labels, packaging, hygiene, tyres and plastic modification, improving permeability, strength, elasticity, damping, dispersion and grip. In Health & Protection and Performance Materials we are a world-leading supplier of water-based polymers for medical gloves, and a major European manufacturer of high-performance binders, foams and other products serving customers in a range of end markets.

Our purpose is creating innovative and sustainable solutions for the benefit of customers and society. Around 20% of our sales volumes are from new and patent protected products. At our innovation centres of excellence in the UK, China, Germany, Malaysia and Ohio, USA we collaborate closely with our customers to develop new products and enhance existing ones tailored to their needs, with an increasing range of sustainability benefits. Our 2030 decarbonisation targets have been approved by the Science Based Targets initiative as being in line with what the latest climate science says is necessary to meet the goals of the Paris Agreement, and since 2021 we have held the London Stock Exchange Green Economy Mark, which recognises green technology businesses making a significant contribution to a more sustainable, low-carbon economy. Find us at www.synthomer.com or search for Synthomer on LinkedIn.

Legal Entity Identifier (LEI): 213800EHT3TI1KPQQJ56.

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