Hammerson plc (Incorporated in England and Wales) (Company number 360632) LSE and Euronext Dublin share code: HMSO JSE share code: HMN ISIN: GB00BK7YQK64 (“Hammerson” or the “Company”) 15 March 2024 Completion of sale of Union Square Following the announcement on 26 February 2024, Hammerson today announces the completion of the disposal of Union Square to an affiliate1 of Lone Star Real Estate Fund VI, L.P. for a cash consideration of £111m. 1LSREF VI Dee Bidco Limited ENDS Hammerson Investor Contact Josh Warren, Hammerson, Director of Strategy & Investor Relations T: +44 20 7887 1053 E: josh.warren@hammerson.com Hammerson Media Contacts Natalie Gunson, Hammerson, Group Director of Corporate Communications T: +44 20 7887 4672 E: Natalie.Gunson@hammerson.com MHP for Hammerson Ollie Hoare and Charles Hirst T: +44 (0)20 3128 8100 E: Hammerson@mhpgroup.com Hammerson has its primary listing on the London Stock Exchange and secondary inward listings on the Johannesburg Stock Exchange and Euronext Dublin. Sponsor: Investec Bank Limited