Rs Group PlcLSE: RS1

2024/25 Assurance Statement (esg assurance statement 2024 25)

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‌STRATEGIC REPORT

RS Group plc

74 GOVERNANCE REPORT FINANCIAL STATEMENTS OTHER INFORMATION Annual Report and Accounts 2025

Independent limited assurance report

ESG ASSURANCE

Independent limited assurance report to RS Group plc

ERM Certification and Verification Services Limited (ERM CVS) was engaged by RS Group plc (the Group) to provide limited assurance in relation to the selected information set out below and presented in RS Group's Annual Report and Accounts 2025 and 2024/25 ESG data centre (the Reports).

Engagement summary

Scope of our assurance engagement

Selected information

Whether the following 2024/25 selected information on pages 47, 50, 51, 52 and 53 of the Annual Report and Accounts 2025 and 2024/25 ESG data centre are fairly presented, in all material respects, in accordance with the reporting criteria:

  • Total Scope 1 and Scope 2 GHG emissions (tonnes CO2e) (including recent - Packaging intensity (tonnes packaging per £ million revenue) acquisitions and excluding recent acquisitions) - Percentage of management that are women (%)

  • Carbon intensity (total Scope 1 and Scope 2 (market-based) GHG emissions in - Percentage of ethnically diverse leaders (%) tonnes CO2e per £ million revenue) (including recent acquisitions and excluding - Employee engagement score (#)

    recent acquisitions) - All accident frequency rate (number of accidents per 200,000 hours)

  • Total Scope 3 GHG emissions from the following categories (tonnes CO2e): - Total waste generated (tonnes)

  • Category 1 - Purchased goods and services - Total weight of waste recycled (tonnes)

  • Category 4 - Upstream transportation and distribution - Total weight of waste incinerated (tonnes)

  • Category 11 - Use of sold products (RS PRO products only) - Total weight of waste landfilled (tonnes)

  • Product transportation emissions intensity (tonnes CO2e per tonne of product sold) - Waste intensity (tonnes per £million revenue)

  • In-use carbon intensity (RS PRO products only) (tonnes CO2e per tonne of product sold)

Our assurance engagement does not extend to information in respect of earlier periods or to any other information included in the Reports.

Reporting period Reporting criteria

- 2024/25 (1 April 2024 - 31 March 2025)

  • The GHG Protocol Corporate Accounting and Reporting Standard (WBCSD/WRI - The Corporate Value Chain (Scope 3) Accounting and Reporting Standard (WBCSD/ Revised Edition 2015) for the Scope 1 GHG emissions WRI 2011) for Scope 3 GHG emissions

  • GHG Protocol Scope 2 Guidance (An amendment to the GHG Protocol Corporate - The Group's internal definitions (basis of reporting) for the KPIs, as described in the Standard (WRI 2015) for the Scope 2 GHG emissions Group's ESG basis of reporting 2024/25 (see: rsgroup.com/sustainability)

Assurance standard

and level of assurance

We performed a limited assurance engagement, in accordance with the International Standard on Assurance Engagements ISAE 3000 (Revised) 'Assurance Engagements other than Audits or Reviews of Historical Financial Information'.

The procedures performed in a limited assurance engagement vary in nature and timing from and are less in extent than for a reasonable assurance engagement and consequently, the level of assurance obtained in a limited assurance engagement is substantially lower than the assurance that would have been obtained had a reasonable assurance engagement been performed.

Respective responsibilities

The Group is responsible for preparing the Reports and for the collection and presentation of the information within it and for the designing, implementing and maintaining of internal controls relevant to the preparation and presentation of the selected information.

ERM CVS' responsibility is to provide a conclusion to the Group on the agreed scope based on our engagement terms with the Group, the assurance activities performed and exercising our professional judgement.

‌STRATEGIC REPORT

RS Group plc

75 GOVERNANCE REPORT FINANCIAL STATEMENTS OTHER INFORMATION Annual Report and Accounts 2025

Independent limited assurance report continued

Our conclusion

Based on our activities, as described below, nothing has come to our attention to indicate that the selected information for 2024/25 is not fairly presented in the Reports, in all material respects, in accordance with the reporting criteria.

Our assurance activities

Considering the level of assurance and our assessment of the risk of material misstatement of the selected information, a multi-disciplinary team of sustainability and assurance specialists performed a range of procedures that included, but was not restricted to, the following:

  • Evaluating the appropriateness of the reporting criteria for the selected information

  • Interviewing management representatives responsible for managing the

    selected information

  • Interviewing relevant staff to understand and evaluate the management systems and

    processes (including internal review and control processes) used for collecting and reporting the selected information

  • Reviewing of a sample of qualitative and quantitative evidence supporting the selected information at a corporate level

  • Performing an analytical review of the year end data submitted by all locations included in the consolidated 2024/25 group data for the

    selected information which included testing the completeness and mathematical accuracy of conversions and calculations and consolidation in line with the stated reporting boundary

  • Conducting site visits to RS Group sites in Corby (UK), Bad Hersfeld (Germany) and Fort Worth (USA) to review source data, local reporting systems and controls

  • Evaluating the conversion factors, emission factors and assumptions used; and

  • Reviewing the presentation of information relevant to the assurance scope in the Reports to ensure consistency with our findings

    The limitations of our engagement

    The reliability of the selected information is subject to inherent uncertainties, given the available methods for determining, calculating or estimating the underlying information.

    It is important to understand our assurance conclusions in this context.

    For the carbon and packaging intensity KPIs, we reviewed the accuracy of the calculations based on the final, assured GHG emissions and packaging data for 2024/25 and the audited revenue figure for 2024/25 provided by the Group; we have not separately audited the revenue figure used in the calculation of these KPIs.

    For the Scope 3 GHG emissions from categories 1 and 11 and the in-use carbon intensity for

    RS PRO products, our work consisted of reviewing the calculations of the GHG emissions and the carbon intensity based on purchase and sales transactions extracted from the Group's financial systems and applying the methodology developed by the Group; we have not separately audited the purchase and sales transactions underlying these GHG emissions and carbon intensity.

    Our observations

    We have provided the Group with a separate Management Report with our detailed observations. Without affecting our assurance conclusion, we make the following observation:

  • As disclosed on page 51 of the Annual Report and Accounts 2025 and in the ESG basis of reporting 2024/25, the Group accounts for product transportation (Scope 3 Category 4) GHG emissions from inbound, outbound and inter-site deliveries where these are controlled by RS Group

Our independence, integrity and quality control

ERM CVS is an independent certification

and verification body accredited by the United Kingdom Accreditation Service to ISO 17021:2015. Accordingly we maintain a comprehensive system of quality control, including documented policies and procedures regarding compliance with

ethical requirements, professional standards and applicable legal and regulatory requirements.

Our quality management system is at least as demanding as the relevant sections of ISQM-1 and ISQM-2 (2022).

ERM CVS applies a Code of Conduct and related policies to ensure that its employees maintain integrity, objectivity, professional competence and high ethical standards in their work.

Our processes are designed and implemented to ensure that the work we undertake is objective, impartial and free from bias and conflict of interest. Our certified management system covers independence and ethical requirements that are at least as demanding as

the relevant sections of the IESBA Code relating to assurance engagements.

ERM CVS has extensive experience in conducting assurance on environmental, social, ethical and health and safety information, systems and processes and provides no consultancy related services to the Group in any respect.

20 May 2025

London, UK



ERM Certification and Verification Services Limited https://www.ermcvs.com

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