Annual Financial Report

Thames Water Utilities Finance plc

15 July 2026

Thames Water Utilities Finance plc

Announces Publication of Annual Financial Statements for year ended 31 March 2026

Publication of Thames Water Utilities Finance plc financial statements

Thames Water Utilities Finance plc announces the publication of its annual report and accounts for the year ended 31 March 2026.

We confirm that a copy of the annual report and accounts has been submitted to and will shortly be available for public inspection at the National Storage Mechanism (NSM) - situated at:

www.fca.org.uk/markets/primary-markets/regulatory-disclosures/national-storage-mechanism

A copy of the above document will also shortly be available electronically on the Thames Water website at:

https://www.thameswater.co.uk/about-us/investors/debt-information/twul-group-financial-statements

Publication of Thames Water Utilities Holdings Limited financial statements

Thames Water Utilities Finance plc announces the publication of Thames Water Utilities Holdings Limited's annual report and accounts for the year ended 31 March 2026.

A copy of the annual report and accounts will shortly be available electronically on the Thames Water website at:

https://www.thameswater.co.uk/about-us/investors/debt-information/other-companies

Publication of Thames Water Utilities Limited financial statements

Thames Water Utilities Finance plc announces the publication of Thames Water Utilities Limited's annual report and accounts for the year ended 31 March 2026.

A copy of the annual report and accounts will shortly be available electronically on the Thames Water website at:

https://www.thameswater.co.uk/about-us/investors/results-and-presentations

For further information

Investor enquiries

Adam Harmon - Investor Relations [email protected]

Media enquiries

Ewan Robertson

07779718865 [email protected]

Jason Collie - Senior Media Relations Manager

07747 640703

[email protected]