Phoenix Energy Responsible Business Report 2026

Responsible Business 2025

Contents

Key Environment, Social & Governance (ESG) Highlights 690k tonnes of CO2 avoided 1 , equivalent to 400,000 cars off the road 99% of electricity procured from renewable resources (434MWhs) 20k of materials diverted from landfill tonnes2 of materials recycled/reused 900 tonnes 100% 5* GRESB ESG Benchmarking Assessment

6 8

26 30 34 39 44

Company Information

Leadership in the Marketplace

SECR compliant full disclosure in Metrics & Targets section

Overview of Phoenix Energy Availability

Investing in our People

10 Customer and Network Growth

Fostering our Community

12 Our Vision and Values

Environmental Responsibility

14 Health and Safety Management 17 Stakeholder and

Our Pathway to Net-Zero

176 3

Employees: Part-time:

Platinum in BITC’s NI Environmental Benchmarking Survey 19 biodiversity initiatives organised in 2025 different

16

160

Full-time: Gender:

28% Female 72% Male

Consumer Engagement 49

Risk Management

Greenhouse Gas emissions, energy use and environmental data independently verified to ISO 14064

19 Looking after our Network 20 How we have Performed

51

Environment Governance and Climate Action Progress Against Targets

Great Place To Work certified

84

TCFD Full compliance with TCFD recommendations

22 Supporting Vulnerable Customers

This 2025 Responsible Business Report provides an overview of Phoenix Energy's sustainability performance and achievements from 1 January to 31 December 2025. For any further information, you can get in touch with us on info@phoenixenergyni.com Please note, sustainability reporting is based on Phoenix Energy, but also includes energy use and greenhouse gas emissions reporting from subcontractors working on behalf of Phoenix (Phoenix Energy Services and Kier Utilities). This report constitutes Phoenix Energy's Streamlined Energy and Carbon Reporting (SECR) disclosure, for the year ended 31 December 2025, as required under the Companies (Directors' Report) and Limited Liability Partnerships (Energy and Carbon Report) Regulations 2018. In preparing this report, Phoenix Energy has had regard to the principles of the Global Reporting Initiative (GRI) Standards to inform the structure and content of our sustainability disclosures, where relevant to our operations. Phoenix Energy's greenhouse gas emissions, energy use, air pollution, waste and water data contained within this report has been independently verified by a third-party carbon consultant in accordance with ISO 14064, covering the period 1 January to 31 December 2025.

DISCLAIMER While all due diligence has been taken to prepare this document, we cannot completely guarantee the quality, accuracy and completeness of the information as other external factors may fluctuate any statistics and interpretations may deviate from what has been published. Information in this document was deemed accurate and appropriate to the best of the knowledge of Phoenix Energy as of May 2026. COPYRIGHT NOTICE All rights reserved. This publication is subject to the laws of copyright. This publication may not be reproduced or transmitted in any form or by any means, electronic or manual, including photocopying without the prior written consent of Phoenix Energy.

1 Estimate based on the premise that, if natural gas was not used, more polluting fossil fuels would be used in the same proportion in which they are currently consumed, for co ǽ avoided. 2 Primarily materials diverted from landfill through the utilisation of directional drilling techniques. 3 Employees of Phoenix Energy and Phoenix Energy Services

4

Responsible Business Report 2026

Responsible Business Report 2026

5