Correction to Vector Operational Performance Statistics

Correction to Vector Operational Performance Statistics for the 6 months ended 31 December 2025 The SAIDI (minutes) Normal Operations Planned increased 19.8% not (19.8%) as incorrectly reported in Vector’s NZX announcement on 23 January 2026. ENDS Investor contact Jason Hollingworth, Chief Financial Officer, Vector Jason.hollingworth@vector.co.nz, 021 312 928 Media contact Matthew Britton, Communications Manager, Vector Matthew.britton@vector.co.nz, 021 224 2966 About Vector Vector is an innovative New Zealand energy company, delivering energy and communication services to more than 630,000 residential and commercial customers across New Zealand. Vector has a leading role in creating a new energy future through its Symphony strategy which puts customers at the heart of the energy system. Vector is listed on the New Zealand Stock Exchange with ticker symbol VCT. Our majority shareholder, with voting rights of 75.1%, is Entrust. For further information, visit www.vector.co.nz.