About this report

Rieter Holding Ltd. (Rieter) reports on non-financial matters for the period from January 1, 2025 to December 31, 2025 in accordance with the Swiss Code of Obligations (Art. 964a et seq. CO). In conformity with Article 964b CO, this includes reporting on climate-related matters based on the recommendations of the Task Force on Climate-related Financial Disclosures (TCFD). In addition, this report provides supply chain information on child labor and conflict minerals in compliance with the requirements of the Ordinance on Due Diligence and Transparency in relation to Minerals and Metals from Conflict-Affected Areas and Child Labour.

This Sustainability Report has been prepared in reference to the Global Reporting Initiative (GRI) and the European Sustainability Reporting Standards (ESRS). The report can be downloaded as a PDF file from the Rieter website. Publication in XBRL format or any other internationally recognized format was omitted due to the lack of a uniformly applicable taxonomy.

Organization and Reporting

The company is organized as a corporation under Swiss law with its registered office in Winterthur (Switzerland), and is listed on the SIX Swiss Exchange. This report covers all Group subsidiaries according to the Annual Report 2025 here unless otherwise stated. The report was published on February 26, 2026. As an integral part of the annual report, it shows how the company formulates, implements and measures its sustainability strategy. The focus is on the latest materiality assessment conducted in 2025, the sustainability strategy developed in response to it and the 2025 targets in the areas of Planet and People. The report is structured as follows:

• Materiality analysis
• Sustainability strategy
• Exchange with dialogue groups
• Ratings and certifications
• United Nations Sustainable Development Goals
• Planet
• People
• Corporate governance in non-financial matters
• TCFD report
• About this report

Restatement of information

Rieter updated its materiality assessment in 2025 to further sharpen its focus and better reflect its current sustainability context.

Corporate Governance

The Board of Directors is responsible for non-financial reporting.

The Board of Directors delegates the implementation of the sustainability strategy to the Group Executive Committee. The Sustainability Committee advises the Group Executive Committee on the implementation of the sustainability strategy. Further information on the management structure, composition and nomination of the Board of Directors is published in the Corporate Governance Report. Information on the remuneration of the Board of Directors can be found in the Remuneration Report.

External Audit

An external audit has not been carried out by the auditors. The report has been reviewed by the Board of Directors and will be submitted to the Annual General Meeting in 2026 for approval.