20 June 2024

HELICAL PLC

("Helical" or the "Company")

Annual Report and Accounts and Notice of Annual General Meeting

Following the release on 23 May 2024 of the Company's Annual Results for the year ended 31 March 2024 ("2024 Results Announcement"), the Company announces that it has published its Annual Report and Accounts for the year ended 31 March 2024 ("2024 Annual Report").

The Company also announces that its 2024 Annual General Meeting ("2024 AGM") will be held at 9:00 a.m. on Wednesday 17 July 2024 at the Company's registered office located at 5 Hanover Square, London W1S 1HQ.

Copies of the 2024 Annual Report and Notice of the 2024 AGM are available to view on the Company's website at www.helical.co.uk. Pursuant to Listing Rule 9.6.3R(1), copies of these documents have also been submitted to the National Storage Mechanism and will shortly be available for inspection at: www.fca.org.uk/markets/primary-markets/regulatory-disclosures/national-storage-mechanism.

The 2024 Results Announcement, together with the information in the Appendix (which has been extracted from the 2024 Annual Report), contains the information required to comply with Disclosure Guidance and Transparency Rule 6.3.5, including principal risk factors, details of related party transactions and the Directors' Responsibilities Statement. This announcement is not a substitute for reading the 2024 Annual Report in full.

Appendix

Directors' Responsibility Statement under the Disclosure and Transparency Rules

Each of the Directors, whose names and functions are listed on pages 102 to 104 of the 2024 Annual Report, confirm that, to the best of their knowledge:

• the financial statements, prepared in accordance with the applicable set of accounting standards, give a true and fair view of the assets, liabilities, financial position and profit or loss of the Company and the undertakings included in the consolidation taken as a whole;
• the Strategic Report contained in the Annual Report includes a fair review of the development and performance of the business and the position of the company and the undertakings included in the consolidation taken as a whole, together with a description of the principal risks and uncertainties that they face; and
• the Directors consider the Annual Report and Accounts, taken as a whole, is fair, balanced and understandable and provides the information necessary for shareholders to assess the Group's and the Company's position, performance, business model and strategy.

This responsibility statement was approved by the Board of Directors on 22 May 2024 and was signed on its behalf by:

Chief Executive Officer   Chief Financial Officer

Gerald Kaye           Tim Murphy

22 May 2024           22 May 2024