Total Voting Rights

KINGSPAN GROUP PLC

Voting Rights and Capital

Transparency Directive

3 July 2023

Kingspan Group plc would like to notify the market of the following changes to the capital of the Company as at 30 June 2023:

Re-issue of Treasury Shares

The Company announces that 21,172 Ordinary Shares of €0.13 each were transferred out of the Company's holding of treasury shares pursuant to the exercise of options under the Kingspan Group Performance Share Plan. The shares were transferred at a weighted average price of €62.81 per share.

Issued Share Capital Update

The Company's issued share capital consists of 183,591,682 ordinary shares of €0.13 each. Following the above transfer, the Company now holds 1,654,148 ordinary shares in treasury. Therefore, the total number of voting rights in the Company is 181,937,534.

Confirmation of number of voting rights

The above figure 181,937,534 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest, or a change to their interest, in Kingspan Group plc under the Disclosure and Transparency Rules.

For further information please contact:

Lorcan Dowd

Company Secretary

+ 353 (0)42 9698000