Publication of ARA, Notice of AGM and NZC Report

Harworth Group plc announces that it has today published the following:

• Annual Report and Financial Statements for the year ended 31 December 2025 (the Annual Report 2025); and
• Notice of 2026 Annual General Meeting (AGM).

Harworth will also publish its NZC Pathway Progress Report for 2025 on Friday 17 April 2026.

ANNUAL REPORT 2025 AND NOTICE OF 2026 AGM

The following documents have been posted or made available to shareholders today:

• Annual Report 2025;
• Notice of 2026 AGM; and
• Form of proxy for the 2026 AGM.

A copy of each of the above-mentioned documents has been submitted to the National Storage Mechanism and will be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Both the Annual Report 2025 and Notice of 2026 AGM can be viewed at, and downloaded from, the Company's website at www.harworthgroup.com/investors.

This announcement should be read in conjunction with the Company's full year results announcement issued on 17 March 2026 (RNS Number: 8869W). All of the material required to be communicated to the media in unedited full text through a Regulatory Information Service under DTR 6.3.5 was in the full year results announcement, which is available at www.harworthgroup.com/investors.

ANNUAL GENERAL MEETING

The AGM will be held on Monday 18 May 2026 at 10:00 a.m. at Unit 1, Harworth Way, Catcliffe, Rotherham, S60 5GR.

The Notice of 2026 AGM, together with explanatory notes on the resolutions to be proposed and instructions on voting, is contained in the circular sent or made available to shareholders today.

NZC PATHWAY PROGRESS REPORT FOR 2025

The NZC Pathway Progress Report for 2025 will be published on Friday 17 April 2026.

In 2022, Harworth committed to becoming operationally NZC by 2030 and NZC for all emissions by 2040. In 2023, Harworth published for the first time its NZC Pathway Report, which outlined the steps that the Company will take to address the challenges and opportunities of decarbonisation as well as providing clear and practical guidance for the business and a framework through which its progress can be measured.

The NZC Pathway Progress Report for 2025 is Harworth's third update on progress against its NZC commitments. The report provides a summary of progress against the NZC Pathway alongside the approach the Company is taking to deliver on its NZC commitments.

The report is available to download at www.harworthgroup.com/sustainability.