Carbon Catch-Up: Big emitters and movers of the NZX50

NZ’s corporate emissions are dominated by a handful of major companies. (Image: Supplied)

Wed, 12 Nov 2025

One company in the NZX50 accounts for more greenhouse-gas emissions than all 49 others combined – and its footprint shapes New Zealand’s corporate carbon story.BusinessDesk’s Carbon Catch-Up project compares the latest climate disclosures of New Zealand’s 50 largest listed companies. This article will cover the biggest emitters and how their profiles compare to previous years. The next instalment in the series will cover carbon intensity, or $ revenue per tonne of emissions – a crucial metric in assessing...

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