Hanaminno Soil Carbon Project

Hanaminno Soil Carbon Project is a soil carbon project located at the Hanaminno property in Boorowa, approximately 110km northwest of Canberra in the Hilltops region of New South Wales. It was registered in March 2025 and initially covered 2056.32 hectares, which mirrors the property's traditional 5,000-acre footprint. In August 2025, a variation was made to the project boundary, removing some specific areas from the original project area.

Projects registered under the Estimation of Soil Organic Carbon Sequestration using Measurement and Models (2021) methodology involve introducing new or materially different agricultural management practices to increase soil carbon storage. The standard requirements for this methodology dictate that baseline soil carbon levels must be established through rigorous physical soil sampling, followed by subsequent testing rounds and modeling to accurately quantify the carbon sequestered over the project's crediting period. The nominated permanence period for this project is 25 years.

The Boorowa region, situated in the South West Slopes of NSW, is a renowned agricultural zone traditionally used for sheep and cattle grazing as well as mixed cropping. The local environment falls under a temperate climate classification with moderate winter-dominant rainfall. The soils in this region are generally characterized by fertile red-brown earths and clay loams, which are highly conducive to maintaining deep-rooted pasture systems.

This specific project seeks to increase soil carbon in the agricultural system by altering the stocking rate, duration, and intensity of grazing to promote soil vegetation cover and improve overall soil health. Furthermore, it involves applying synthetic or non-synthetic fertilizers to address material soil deficiencies. A notable feature of this project is its location: the Hanaminno property is owned by Charlie Arnott, an influential eighth-generation regenerative farmer, podcaster, and winner of the 2018 Bob Hawke National Landcare Award. The land is operated by Margan Pastoral Company, focusing on producing holistic, biodynamic grass-fed beef, lamb, and pork. In December 2025, co-proponent Atlas Agri Solutions (operating as Atlas Carbon) hosted a collaborative field day at the Hanaminno property to publicly showcase these integrated grazing and soil carbon initiatives.