Hallmark Carbon Project

Hallmark Carbon Project is a soil carbon project located approximately 37km south of Nhill and 20km east-northeast of Goroke in the Wimmera region of western Victoria. It was registered in May 2018 and covers an active project area of 48.66 hectares following a boundary variation in November 2020.

The Wimmera region is well known for broadacre dryland cropping (primarily wheat, barley, and canola) as well as sheep grazing. The local environment experiences a semi-arid, Mediterranean climate with relatively low annual rainfall averaging between 400mm to 450mm. The soils across this district are predominantly characterised by sandy loams and nutrient-rich Wimmera cracking clays, which are well-suited to targeted regenerative agriculture interventions.

Under the Estimation of Soil Organic Carbon Sequestration using Measurement and Models (2021) methodology, projects must undertake new, eligible management activities to build and retain carbon in agricultural soils. The Hallmark Carbon Project achieves this by rejuvenating and re-establishing pastures through seeding or pasture cropping, and actively altering the stocking rate, duration, and intensity of grazing. These specific actions are designed to improve overall soil health, promote sustained vegetation cover, and increase below-ground biomass. The methodology requires strict baseline soil carbon measurements and subsequent sampling or modelling to quantify the carbon sequestered.

Interestingly, this project was initially registered under the older 2014 soil carbon methodology before being officially transitioned to the updated 2021 framework in October 2025. Additionally, the project's proponent changed from Corporate Carbon Solutions Pty Ltd to Agriprove Solutions Pty Ltd in September 2025. This administrative change reflects Agriprove's operational history, as the company originally spun out of Corporate Carbon in 2018 as a special purpose vehicle specifically focused on scaling regenerative agriculture and soil carbon solutions.