<div id="readability-page-1"><div>RNS Number : 6343L National Grid Electricity Trans.PLC 15 December 2025 15 December 2025National Grid Electricity Transmission plc announces a partial repurchase and cancellation of its £200,000,000 1.6449 per cent. RPI-Linked Instruments due 2036 (the &#34;Instruments&#34;)ISIN: XS0248040544Common Code: 024804054National Grid Electricity Transmission plc announces that it has today agreed to repurchase £110,000,000 in nominal amount of the Instruments.The settlement of the repurchase is expected to occur on or around 18 December 2025. The repurchased Instruments will then be cancelled and following this cancellation, the nominal amount of Instruments outstanding will be £90,000,000.For further information, please contact:<div><table><tbody><tr><td>Kwok Liu</td><td>+44 (0) 7900 405 729 (m)</td></tr><tr><td>Deputy Treasurer, Funding &amp; InvestmentNational Grid plc</td><td></td></tr><tr><td>Miranda Cochrane</td><td>+44 (0) 7745 122 714</td></tr><tr><td>Senior Manager, Strategic CommunicationsNational Grid plc</td><td></td></tr></tbody></table></div>This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com.RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END MSCUVAVRVKUUAAA</div></div>

National Grid Electricity Transmission plc has announced the partial repurchase and cancellation of £110,000,000 of its £200,000,000 RPI-Linked Instruments due 2036. The settlement is expected on or around 18 December 2025, reducing the outstanding nominal amount to £90,000,000.

REG - NationalGridElecTran - Repurchase completion