YIT Corporation Managers' transactions May 9, 2025, at 9:45 a.m. YIT Corporation: Managers' transactions - Tuomas Mäkipeska YIT Corporation has received the following notification: YIT Corporation - Managers' transactions - Mäkipeska ____________________________________________ Person subject to the notification requirement Name: Mäkipeska, Tuomas Position: Chief Financial Officer Issuer: YIT Corporation LEI: 529900M13GM4VSTE6W80 Notification type: INITIAL NOTIFICATION Reference number: 107611/4/4 ____________________________________________ Transaction date: 2025-05-06 Venue not applicable Instrument type: SHARE ISIN: FI0009800643 Nature of the transaction: RECEIPT OF A SHARE-BASED INCENTIVE Transaction details (1): Volume: 4746 Unit price: 0.00 EUR Aggregated transactions (1): Volume: 4746 Volume weighted average price: 0.00 EUR For further information: Essi Nikitin, Vice President, Investor Relations, YIT Corporation, tel. +358 50 581 1455, essi.nikitin@yit.fi YIT Corporation Tuomas Mäkipeska CFO Distribution: Nasdaq Helsinki, major media, www.yitgroup.com We build and develop sustainable living environments: functional and attractive homes, future-proof public and commercial buildings, infrastructure to support the green transition as well as industrial, production, and energy facilities to support our customers' processes. YIT's vision is to be the expert partner in developing sustainable homes, spaces, and cities - for a good life. There are approximately 4,100 professionals in our team and our revenue in 2024 was EUR 1.8 billion. YIT Corporation's shares are listed on Nasdaq Helsinki. Read more: www.yitgroup.com (https://www.yitgroup.com/en) and follow us on Linkedin (https://www.linkedin.com/company/yit/) I X (https://twitter.com/YITG roup) I Instagram (https://www.instagram.com/yitsuomi/) I Facebook (https://www.f acebook.com/yitsuomi/)