Updated Financial Framework and Notice of Results

Chesnara plc ("Chesnara" or "the Company") is today announcing an updated financial framework. The simplified financial framework is anchored to the already established pillars of Cash, Capital and Value.

The Company has reviewed its Alternative Performance Measures (APMs) and is making the following changes:

• Introduction of two new measures: Operating Capital Generation (OCG); and Adjusted Operating Profit (AOP)
• De-emphasis* of the following measures: Group Base Cash Generation; Divisional Cash Generation; Group Commercial Cash Generation; Divisional Commercial Cash Generation; Economic Value; and Economic Value Earnings.

*Chesnara will continue to provide disclosure on prior key financial metrics in its Annual Reports & Accounts, however these will no longer be a primary focus.

The Company will be hosting a brief presentation for sell-side analysts later today. No material new information will be provided. The presentation materials will be made available on the Company's website and include FY 2024 APMs under the new financial framework: www.chesnara.co.uk.

Notice of Results

Chesnara will report its full year results for the year ended 31st December 2025 on 24 March 2026.

A presentation for analysts and investors will be held at 9.30am on 24 March 2026 at the Offices of RBC Capital Markets, 100 Bishopsgate, London, EC2N 4AA, which will be available to join online and subsequently be posted to the corporate website.