FRN Variable Rate Fix

Re: THE NATIONAL GRID COMPANY PLC

GBP 40,000,000.00

MATURING: 29-Jul-2030

ISIN: XS0132734483

PLEASE BE ADVISED THAT THE INTEREST RATE FOR THE PERIOD 27-Jul-2025 TO 27-Jan-2026

HAS BEEN FIXED AT 7.51 PCT

DAY BASIS: ACTUAL/ACTUAL(ISMA)

INTEREST PAYABLE VALUE 27-Jan-2026 WILL AMOUNT TO:

GBP 2,629,623.50 PER GBP 70,000,000.00 DENOMINATION

View source version on businesswire.com: https://www.businesswire.com/news/home/20250730455326/en/

The National Grid Company Plc