Investor webcast details, Contact acquisition of Manawa

11 September 2024 Investor presentation webcast details, Contact’s proposed acquisition of Manawa Contact’s Chief Executive, Mike Fuge, and Chief Financial Officer, Dorian Devers, will make a presentation for analysts, investors, and media on Contact’s acquisition of Manawa Energy Limited. Date: Wednesday 11 September 2024 Time: Midday - 12.00p.m. NZST. Live Webcast link: Participants may register for the webinar/meeting at the following link: https://openexc.zoom.us/webinar/register/WN_uXKrmED9Ra2qwQowpEnFcg Registration will require you to fill out some basic information including, your name, email address, organisation name, and title / classification. After registering, you will receive a confirmation email containing information about joining the webinar/meeting. Alternatively, participants may dial into the webcast for audio only: • New Zealand Numbers: +64 9 884 6780, +64 3 659 0603, +64 4 886 0026, 0800 527 544 (toll free), 0800 307 929 (toll free) • Australian Numbers: +61 7 3185 3730, +61 8 6119 3900, +61 8 7150 1149, +61 2 8015 6011, +61 3 7018 2005, 1800 945 157 (toll free), 1800 317 562 (toll free), 1800 893 423 (toll free) • Dial in numbers for other countries: https://openexc.zoom.us/u/aesziZ6tHz Meeting ID: 920 9438 6863 Passcode: 766058 A replay of the results briefing will also be available at: https://contact.co.nz/aboutus/investor-centre from the afternoon of Wednesday 11 September 2024. Q&A: At the end of the formal presentation Contact invites verbal questions from attendees. The moderator will outline the process for asking questions during the call. We will endeavour to address all questions during the webcast. However, this will be subject to the availability of time. For further information please contact: Investor enquiries Shelley Hollingsworth Investor Relations and Strategy Manager +64 27 227 2429 shelley.hollingsworth@contactenergy.co.nz Media enquiries Louise Wright Head of Communications and Reputation +64 21 840 313 louise.wright@contactenergy.co.nz