LONDON–(BUSINESS WIRE)– As Agent Bank, please be advised of the following rate determined on: 11/2/2026 Issue ¦ National Grid Gas plc – Series 50 GBP 50,000,000 Index Linked FRN due 1 May 2037 ISIN Number ¦ XS0289189093 ISIN Reference ¦ 28918909 Issue Nomin GBP ¦ 50000000 Period ¦ 11/1/2026 to 5/1/2027 Payment Date 5/4/2027 Number of Days ¦ 181 Rate ¦ 4.02494 Denomination GBP ¦ 50000 ¦ 50000000 ¦ Amount Payable per Denomination ¦ 1006.24 ¦ 1006235 ¦ Bank of New Yo