Contact Energy Limited (“CEN”) – Trading Halt of Securities

Memorandum To: Market Participants From: NZX Product Operations Date: Wednesday, 20 May 2026 Subject: Contact Energy Limited (“CEN”) – Trading Halt of Securities Message: NZ RegCo has approved a trading halt application from Contact Energy Limited (“CEN”). Trading in ordinary shares of CEN was halted before market open today. Attached is the trading halt application, for further information. Please contact NZX Product Operations on +64 4 496 2853 or productoperations@nzx.com with any queries. ENDS