Annual Financial Report - Group Companies

14 August 2020

National Grid plc

 ('National Grid' or 'Company')

Publication of Annual Reports and Accounts

for Group Companies With Listed Debt

The Annual Reports in respect of the following National Grid Group subsidiary companies with listed bonds have been issued to shareholders:

National Grid Gas plc

National Grid Electricity Transmission plc

In accordance with Listing Rule 17.3.1, we confirm that copies of the above Annual Reports have also been submitted to the Financial Conduct Authority via the National Storage Mechanism and will shortly be available to the public for inspection at https://www.fca.org.uk/markets/primary-markets/regulatory-disclosures/national-storage-mechanism

Copies of the above documents are also available electronically on the National Grid website at: www.nationalgrid.com.

Megan Barnes

Head of Company Secretariat

National Grid plc