Chorus Limited (NZX: CNU, ASX: CNU), New Zealand's largest telecommunications infrastructure company founded in 2011 and headquartered in Wellington, builds and operates nationwide fibre broadband and copper telecommunication networks, providing wholesale fixed line communications infrastructure services including fibre optic connectivity, copper access lines, backhaul, data and voice services, colocation at exchanges, and transport infrastructure to approximately 100 retail service providers across residential, business and mobile sectors throughout New Zealand. The company owns the majority of the country's telephone lines, exchange equipment and cabinets, delivering open-access fibre services under the government-backed Ultra-Fast Broadband (UFB) initiative that covers up to 87% of New Zealanders with over 75% uptake as of 2024; its copper network supports around 122,000 active lines amid ongoing retirement plans targeting completion by 2030 in fibre-ready areas, while sustaining approximately 1.8 million total connections. In June 2025, Chorus completes its Big Fibre Boost by upgrading wholesale residential fibre tiers from 300/100 Mbps to 500/100 Mbps and entry-level plans from 50/10 Mbps to 100/20 Mbps free of charge for over 700,000 homes, alongside network extensions passing 7,000 additional addresses including 2,000 in smaller communities; earlier in February 2025, it renews and extends NZ$1 billion field services agreements with partners Downer NZ and UCG, reports FY25 results with operating revenue of $1,014 million, EBITDA of $705 million and net profit of $4 million driven by 31,000 new fibre connections and 72.1% uptake, and advances its transition to an all-fibre digital infrastructure operator with robust cost management and $559 million operating cash flows up 9%.