FRN Variable Rate Fix

LONDON, May 27, 2026–(BUSINESS WIRE)–

As Agent Bank, please be advised of the following rate determined on: 5/26/2026

Issue

¦ National Grid Electricity Transmission Plc – Series 50 GBP8,900,000 RPI-Linked inst. due 23 Dec 2058

ISIN Number

¦ XS0406490424

ISIN Reference

¦ 40649042

Issue Nomin GBP

¦ 8900000

Period

¦ 12/23/2025 to 6/23/2026

Payment Date 6/23/2026

Number of Days

¦ 182

Rate

¦ 6.8559

Denomination GBP

¦ 50000

¦ 8900000

¦

Amount Payable per Denomination

¦ 1713.98

¦ 305087.55

¦

Bank of New York

Rate Fix Desk

Telephone

¦ 44 1202 689580

Corporate Trust Services

Facsimile

¦ 44 1202 689601

As Agent Bank, please be advised of the following rate determined on: 5/26/2026

¦ National Grid Electricity Transmission Plc – Series 50 GBP8,900,000 RPI-Linked inst. due 23 Dec 2058

Amount Payable per Denomination

View source version on businesswire.com: https://www.businesswire.com/news/home/20260527330446/en/

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