The procurement contact named on the official notice.

To gain access to the PSQ documents, please fill out the details on this form; https://forms.office.com/e/8Dt3jAAmhs

The submission route named on the official notice.

This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites.

Target Sites The procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items.

Objectives • Compliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose. • Commercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water • Futureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works Procurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope.

The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits.

Procurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites.

Specifically: • A study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year.

These findings will inform final scope and procurement readiness Expected Outcomes • Improved asset reliability and operational performance • Enhanced alignment with environmental and regulatory objectives • Commercial efficiencies through strategic sourcing and standardisation Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.