Pennon appoints new Non-Executive Director

Pennon Group Plc is pleased to announce the appointment of Sir Andrew Haines as a Non-Executive Director with effect from 1 November 2025. Sir Andrew brings extensive leadership experience from across the UK's transport and regulatory sectors, having most recently served as Chief Executive of Network Rail from 2018 to 2025.

During his tenure at Network Rail, Sir Andrew led a major organisational restructure in preparation for the creation of Great British Railways and delivered a £4 billion efficiency programme. He has been instrumental in the successful and ongoing delivery of £10 billion of infrastructure investment between Manchester and York, and beyond.

His career also includes serving as Chief Executive of the Civil Aviation Authority and holding senior roles in the rail industry, including Managing Director of South West Trains and the Rail Division of First Group plc. He was awarded an OBE in the 2016 New Year Honours and received a Knighthood in the 2025 Honours list for services to transport and the economy.

Sir Andrew Haines commented:

"I am delighted to be joining Pennon at such a pivotal time in the water industry. There is no more essential public service, and I hope the experience I bring can help ensure the company delivers on its transformational plans for customers, communities, and the environment."

David Sproul, Chairman of Pennon Group, commented:

"On behalf of the entire Board, I am very pleased to be welcoming Sir Andrew to Pennon as a Non-Executive Director. His track record in leading complex, customer-focused organisations, alongside his deep understanding of regulated industries, will be invaluable as we deliver on our largest ever investment programme for our customers and communities. I look forward to working closely with Andrew to ensure we continue meet the highest standards of governance and service for all our stakeholders."

Notes: The Company confirms that there is no other information to be disclosed under the requirements of Listing Rule 9.6.13R in relation to these appointments. For further information, please contact:

Pennon Group plc

Harry Worthington