1.         Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached [ii]:

Grafton Group PLC

2.         Reason for the notification (please tick the appropriate box or boxes):

[X]    an acquisition or disposal of voting rights

[ ]      an acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

[ ]     an event changing the breakdown of voting rights

[ ]   other

3.         Full name of person(s) subject to the notification obligation[iii]:

BlackRock, Inc.

4.         Full name of shareholder(s) (if different from 3.)[iv]:

See Section 9

5.         Date of the transaction and date on which the threshold is crossed or reached[v]:

20^th September 2022

6.         Date on which issuer notified:

21^st September 2022

7.         Threshold(s) that is/are crossed or reached:

Holdings for BlackRock Investment Management (UK) Limited moved below 5%.

            Notified details:

9.         Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable[xviii]:

Each of the following entities, which are wholly owned subsidiaries of BlackRock, Inc., hold the following interests in voting rights in their capacity as Investment Manager on behalf of clients:

10.       In case of proxy voting: [name of the proxy holder] will cease to hold [number] voting rights as of [date].

11.       Additional information:

Done at 12 Throgmorton Avenue, London, EC2N 2DL, U.K. on 21^st September 2022.