LONDON–(BUSINESS WIRE)– As Agent Bank, please be advised of the following rate determined on: 10/5/2026 Issue ¦ National Grid Gas PLC – Series 58 GBP 25,000,000 1.808% Ind Linked due 26 Oct 37 ISIN Number ¦ XS0327278247 ISIN Reference ¦ 32727824 Issue Nomin GBP ¦ 25000000 Period ¦ 4/26/2026 to 10/26/2026 Payment Date 10/26/2026 Number of Days ¦ 183 Rate ¦ 3.676951 Denomination GBP ¦ 50000 ¦ 25000000 ¦ Amount Payable per Denomination ¦ 919.24 ¦ 459618.89 ¦ Bank of