Notice of AGM

Kingspan Group Plc

Notice of Annual General Meeting 2023

16 March 2023

The Annual General Meeting of Kingspan Group plc will be held at 9.00 a.m. on Friday, 28 April 2023 at IKON, Dublin Road, Kingscourt, Co. Cavan, A82 XY31, Ireland.

The Notice of the 2023 Annual General Meeting and the Form of Proxy have been published and are now available on the Company's website, and may be viewed and downloaded online at:

www.kingspan.com/agm2023

Hard copy documents are today being posted to shareholders who have elected to receive them and are also available from the Company Secretary at the Company's registered office at Dublin Road, Kingscourt, County Cavan, Ireland.

Copies of the above documents will be submitted to Euronext Dublin and the UK National Storage Mechanism and will shortly be available for inspection at

Euronext Dublin OAM Filing

and at

https://data.fca.org.uk/#/nsm/nationalstoragemechanism

Lorcan Dowd

Group Company Secretary

+ 353 42 9698000