Rule 2.9 Announcement

21 December 2017

Booker Group plc

RULE 2.9 ANNOUNCEMENT - RELEVANT SECURITIES IN ISSUE

In accordance with Rule 2.9 of the Takeover Code, Booker Group plc confirms that, as at 20 December 2017, it had 1,786,886,532 ordinary shares of one penny each in issue and admitted to trading on the London Stock Exchange's Main Market for listed securities. Booker currently holds no ordinary shares in treasury. The ISIN for the Booker shares is GB00B01TND91.

For further information, please contact:

Tulchan Communications (PR Adviser to the Company)

Tel: 020 7353 4200

Attn: Susanna Voyle