Westpac Banking Corp (“WBC”) – Trading Halt of Securities

Memorandum To: Market Participants From: NZX Product Operations Date: Monday, 8 May 2023 Subject: Westpac Banking Corporation ("WBC") - Trading Halt of Securities Message: NZ RegCo advises that, at the request of the issuer, it has placed a trading halt on Westpac Banking Corporation ("WBC") ordinary shares. The halt was placed at premarket open today, Monday, 8 May 2023. The trading halt has been put in place pending the release of WBC's Interim Financial Results. The trading halt is expected to be lifted after the release of the relevant announcements by WBC on NZX. Please contact NZX Product Operations on +64 4 496 2853 or productoperations@nzx.com with any queries. ENDS End CA:00411000 For:WBC Type:HALT Time:2023-05-08 08:55:16