Notice of Annual Results

Haydale Plc

("Haydale", the "Company" or the "Group")

Notice of Annual Results

Haydale (AIM: HAYD), the global advanced materials and clean-tech company focused on deploying energy and water-efficient technologies at scale will announce its audited results for the 15 months ended 30 September 2025 on Tuesday, 17 February 2026. The Board looks forward to updating shareholders with further details at that time. 

For further information:

Haydale Plc

Simon Turek, Chief Executive Officer Tel: +44 (0) 1269 842946

Gareth Kaminski-Cook, Non-Executive Chair

Patrick Carter, Chief Financial Officer

www.haydale.com

Cavendish Capital Markets Limited (Nominated Adviser & Broker)

Julian Blunt / Edward Whiley / Trisyia Jamaludin, Corporate Finance Tel: +44 (0) 20 7220 0500

Andrew Burdis, ECM

About Haydale

Haydale plc is an advanced materials and clean-technology company focused on the development and deployment of energy- and water-efficient technologies at scale.

The Group leverages its proprietary HDPlas® platform technology to develop patented graphene-enabled products across heating, cooling and energy-efficiency applications. These technologies are deployed through an integrated commercial model that combines in-house product development with established customer access, delivery capability and long-term partner relationships, including through the SaveMoneyCutCarbon Impact Partner programme.

Haydale's strategy is focused on accelerating the deployment of cost-effective decarbonisation solutions across the UK's built environment, while building a scalable platform for wider international deployment through strategic partners. The Group is execution-led and product-focused, translating advanced materials science into commercially deployable solutions that deliver measurable energy, water and carbon savings.