Severn Trent PLC

Prospectus • Nov 22, 2022

FIRST SUPPLEMENTARY PROSPECTUS DATED 22 NOVEMBER 2022 TO THE PROSPECTUS DATED 27 JULY 2022

SEVERN TRENT UTILITIES FINANCE PLC

(incorporated with limited liability in England and Wales with registered number 2914860) as an Issuer

SEVERN TRENT PLC

(incorporated with limited liability in England and Wales with registered number 2366619)

as an Issuer

SEVERN TRENT WATER LIMITED

(incorporated with limited liability in England and Wales with registered number 2366686) as the Guarantor of Notes issued by Severn Trent Utilities Finance Plc

€8,000,000,000 Euro Medium Term Note Programme

This first Supplementary Prospectus (the "Supplementary Prospectus" which definition shall also include all information incorporated by reference herein) constitutes a supplementary prospectus for the purposes of Article 23 of Regulation (EU) 2017/1129 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended (the "UK Prospectus Regulation") and has been prepared by Severn Trent Plc and Severn Trent Utilities Finance Plc (each an "Issuer" and together the "Issuers") and Severn Trent Water Limited (the "Guarantor") for use in connection with Notes issued from time to time under the above-mentioned €8,000,000,000 Euro Medium Term Note Programme (the "Programme") established by the Issuers. A prospectus dated 27 July 2022 (the "Prospectus") has been prepared by the Issuers and Severn Trent Water Limited and approved as a base prospectus by the United Kingdom Financial Conduct Authority (the "Financial Conduct Authority") in its capacity as competent authority under the UK Prospectus Regulation, for use in connection with the Programme. This Supplementary Prospectus supplements, updates and forms part of the Prospectus and should be read in conjunction therewith, together with any other supplements to the Prospectus. Except as otherwise provided in this Supplementary Prospectus, terms and expressions defined in the Prospectus have the same meaning when used in this Supplementary Prospectus.

The purpose of this Supplementary Prospectus is to incorporate by reference into the Prospectus the unaudited condensed consolidated interim financial statements of Severn Trent Plc for the six months ended 30 September 2022.

Severn Trent Plc Financial Results

On 22 November 2022, Severn Trent Plc published its Half Yearly Financial Report and interim results for the six months to 30 September 2022 (the "HY Financial Report").

A copy of the HY Financial Report has been filed with the Financial Conduct Authority and by virtue of this Supplement, pages 18 to 42 (inclusive) of the HY Financial Report (including the notes thereto and the auditor's review report prepared in connection therewith) are incorporated in, and form part of, this Supplementary Prospectus and the Prospectus.

Documents Incorporated by Reference

The HY Financial Report will be available (free of charge) on Severn Trent Plc's website at: https://www.severntrent.com/investors/.

Any information contained in the HY Financial Report which is not expressly incorporated by reference in this Supplementary Prospectus does not form part of this Supplementary Prospectus and is either not relevant to an investor or is otherwise covered elsewhere in the Supplementary Prospectus or the Prospectus. Any information or documents which are incorporated by reference, either expressly or implicitly, in the HY Financial Report incorporated by reference in this Supplementary Prospectus shall not form part of this Supplementary Prospectus.

Significant Change

There has been no significant change in the financial performance or financial position of (i) Severn Trent Plc and its subsidiaries taken as a whole, since 30 September 2022, which is the latest publicly available financial information; (ii) STWL and its subsidiaries taken as a whole, since 31 March 2022; and (iii) STUF, since 31 March 2022.

There has been no material adverse change in the prospects of Severn Trent Plc and its subsidiaries taken as a whole since 31 March 2022, which is the latest audited financial information.

General Information

The Issuers and the Guarantor accept responsibility for the information contained in this Supplementary Prospectus. To the best of the knowledge of the Issuers and the Guarantor (each having taken all reasonable care to ensure that such is the case) the information contained in this Supplementary Prospectus is in accordance with the facts and does not omit anything likely to affect the import of such information.

Copies of this Supplementary Prospectus, the Prospectus and all documents or information incorporated by reference in this Supplementary Prospectus are available for inspection during normal office hours from the registered office of each Issuer and from the specified offices of the Paying Agents.

To the extent that there is any inconsistency between (a) any statement in this Supplementary Prospectus or any statement incorporated by reference into the Prospectus by this Supplementary Prospectus and (b) any other statement in or incorporated in the Prospectus prior to the date of this Supplementary Prospectus, the statements in (a) above will prevail. Save as disclosed in this Supplementary Prospectus or any document incorporated by reference in this Supplementary Prospectus there has been no other significant new factor, material mistake or inaccuracy relating to information included in the Prospectus since the publication of the Prospectus.

This Supplementary Prospectus contains references to certain websites. No such website, nor any information contained on any such website, is incorporated in this Supplementary Prospectus or the Prospectus, and such websites and information do not form part of this Supplementary Prospectus or the Prospectus.