Affinity Water Limited Directorate Change

Affinity Water Finance (2004) PLC

£102.7m of 5.875% Sterling Denominated Guaranteed Notes Due 2026

issued by Affinity Water Finance (2004) PLC and guaranteed by Affinity Water Limited

AFFINITY WATER LIMITED DIRECTORATE CHANGE

2 October 2025

Affinity Water Limited (the "Company") announces that Keith Haslett has advised the Board of his intention to step down as Chief Executive Officer and a Director of the Company in order to take up a new role as Group CEO at Pennon Group Plc. The Board is now commencing a process to appoint a new CEO. Keith Haslett will remain as CEO to support an orderly transition of responsibilities during that process. Further information on the timing and other details of Keith Haslett's departure, and on the appointment of a new CEO, will be announced in due course.

Mike Brown, Chair of the Board, said:

"I would like to thank Keith for his commitment, energy, dedication and hard work since becoming CEO in January 2023. Keith has driven a relentless focus on high operational standards and cost control, enabling the Company to deliver for customers and leaving the Company in a strong position with a successful PR24 outcome and clear plans for delivering the AMP8 business plan. I wish him well for the future."

Keith Haslett said:

"I have thoroughly enjoyed leading the Affinity team across the past few years with improvements in operational performance, financial resilience and cultural change to now become industry leading in the sector. I would like to thank the Board and all the employees for their support and dedication across the past few years and I wish the team well as they look forward to deliver the AMP8 business plan."

ENDS

For further information, please contact [email protected].

Affinity Water Limited

Tamblin Way

Hatfield

Hertfordshire

AL10 9EZ