Allotment of Shares and Total Voting Rights

FOR IMMEDIATE RELEASE

21 September 2021

John Laing Group plc (the Company)

Allotment of Shares and Total Voting Rights

In accordance with Rule 2.9 of the City Code on Takeovers and Mergers, the Company announces that on 21 September 2021, the Company issued 2,504,015 ordinary shares of 10 pence each in the Company to satisfy awards made under the John Laing Long-Term Incentive Plan, the John Laing Restricted Share Award Plan and the John Laing Deferred Share Bonus Plan which have vested and, where applicable, been exercised in accordance with the terms of the share award plans.

Following the above allotment, the Company's issued share capital consists of 496,374,651 ordinary shares with voting rights. The International Securities Identification Number (ISIN) for the Company's ordinary shares is GB00BVC3CB83.

There are no ordinary shares held in Treasury.

The above figure (496,374,651) may be used by shareholders (and others with notification obligations) as the denominator for the calculation by which they will determine if they are required to notify their interest, or a change to their interest, in the Company under the Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

Enquiries:

Clare Underwood

Group Company Secretary companysecretary@laing.com

Tulchan +44 (0) 20 7353 4200

Olivia Peters JohnLaing@tulchangroup.com

Suniti Chauhan