S&P confirms Chorus’ BBB/positive rating

STOCK EXCHANGE ANNOUNCEMENT 15 October 2026 S&P confirms Chorus’ BBB/positive rating S&P Global Ratings (S&P) has released the attached update on Chorus. Following the August 2026 sale of Chorus’ UFB equity and debt funding securities held by National Infrastructure Funding and Financing Limited (NIFF) to a select group of domestic and international institutional investors, S&P has revised its treatment of the NZ$683 million of NIFF equity securities from 100% equity to 100% debt. Chorus’ long-term rating remains at BBB/positive. Authorised by: Kristel McMeekin General Counsel ENDS For further information: Shannon Goldstone Head of Corporate Affairs & Sustainability Phone: 0800 763 000 Email: Shannon.Goldstone@chorus.co.nz Aleida White Head of Investor Relations Mobile: +64 21 155 8837 Email: Aleida.White@chorus.co.nz