YIT Oyj — Major Shareholding Notification 2022

Apr 19, 2022

Disclosure 407122

YIT - Major shareholder announcements

Notification according to Chapter 9, Section 10 of the Securities Markets Act of change in holdings in YIT Corporation shares

YIT Corporation Stock exchange release 19 April 2022 at 2:30 p.m. Notification according to Chapter 9, Section 10 of the Securities Markets Act of change in holdings in YIT Corporation shares YIT Corporation has on 19 April 2022 received an announcement under Chapter 9, Section 5 and 6 of the Securities Markets Act, according to which the holding of Virala Oy Ab has exceeded the threshold of 15 per cent. According to the announcement, the holding had exceeded the threshold on 14 April 2022. According to the announcement, the total number of YIT shares owned directly or through financial instruments by Virala Oy Ab is 15.40%. YIT has one share series, each share entitling to one vote. The total number of YIT’s shares is 211,099,853 shares. Total positions of Virala Oy Ab subject to the notification: % shares and % of shares and Total Total voting voting rights of number of rights(total through financial both shares of A) instruments(total in % and voting of B) (A+B) rights of issuer Resulting 12.22 3.18 15.40 211,099,853 situation on the date on which threshold was crossed or reached Position of 12.22 2.87 15.09 previous notification (if applicable) Notified details of the resulting situation on the date on which the threshold was crossed: A: Shares and voting rights: Class/type Number of shares and voting rights % of shares and voting rights of shares ISIN code (if possible) Direct Indirect Direct Indirect (SMA 9:5) (SMA 9:6 and 9:7) (SMA 9:5) (SMA 9:6 and 9:7) FI - 25,800,000 - 12.22 0009800643 SUBTOTAL A 25,800,000 12.22 B: Financial instruments according to SMA 9:6a: Type of Expiration Exercise/ Physical or Number of shares % of shares financial date Conversion cash and voting rights and voting instrument Period settlement rights Forward 20 May 20 May 2022 Physical 6,713,000 3.18 contract 2022 SUBTOTAL B 6,713,000 3.18 Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity: Name % of shares % of shares and voting rights Total of both and voting through financial instruments rights Virala - 3.18 6,713,000 Oy Ab Atine - - - Group Oy Nidoco - - - AB Tercero 12.22 - 25,800,000 Invest AB Additional information: The forward contracts in the notification of major holdings published on 8 April 2022 have been sold, and on the same occasion, forward contracts with expiration date on 20 May 2022 have been acquired. Also, the number of shares associated with the forward contracts has grown to 6,713,000 from 6,056,000 notified on 8 April 2022. Further information: Tommi Järvenpää, Vice President, Investor Relations, YIT Corporation, tel. +358 40 576 0288, tommi.jarvenpaa@yit.fi YIT Corporation Tommi Järvenpää Vice President, Investor Relations Distribution: Nasdaq Helsinki, major media, www.yitgroup.com YIT is the largest Finnish and a significant North European development and construction company. For 110 years, we have been creating better living environments for our customers: functional homes for sustainable living, future -proof public and commercial buildings and infrastructure for smoother flow of people, businesses and society. We employ 7,000 professionals in ten countries: Finland, Russia, Sweden, Norway, Estonia, Latvia, Lithuania, the Czech Republic, Slovakia and Poland. Our revenue in 2021 was EUR 2.9 billion. YIT Corporation's share is listed on Nasdaq Helsinki Oy. www.yitgroup.com (https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F %2Fwww.yitgroup.com%2Fen&data=04%7C01%7CJohanna.Savolainen%40yit.fi%7C3e5d5bda823 049584ace08d9e7b406a8%7Cde5d17d0fbc24c29b0f7d6685b6c3ef0%7C0%7C0%7C63779558265228 4758%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi LCJXVCI6Mn0%3D%7C3000&sdata=vQTsHsSyXEvJzLT7K0yeRFpkzZ2e0NY%2FNYSZGx5Op68%3D&rese rved=0)