Westpac Banking Corporation (“WBC”) – Trading Halt

Memorandum To: Market Participants From: NZX Product Operations Date: Monday, 9 May 2022 Subject: Westpac Banking Corporation ("WBC") - Trading Halt of Securities Message: NZ RegCo advises that, at the request of Westpac Banking Corporation ("WBC"), it has placed a trading halt on WBC Ordinary Shares. The trading halt was placed at pre market open today, Monday 9 May 2022. The trading halt has been put in place pending the release of WBC's 2022 Interim Financial Results. The trading halt will remain in place until the release of the WBC 2022 Interim Financial Results or market open on Tuesday, 10 May 2022. Please contact NZX Product Operations on +64 4 496 2853 or productoperations@nzx.com with any queries. ENDS End CA:00391682 For:REGCO Type:HALT Time:2022-05-09 08:54:48