Western Treefarm Project phase 2 (WTP2)

Western Treefarm Project phase 2 (WTP2) is a plantation forestry project located across the Boyup Brook and West Arthur local government areas, approximately 260km south-east of Perth in South West Western Australia. It was registered in June 2024 and initially covered 477.34 hectares. In July 2025, a project area variation was processed, formally adding additional land to the project's total footprint.

The project operates under the Carbon Farming Initiative - Plantation Forestry (2022) methodology. Plantation forestry projects involve establishing and maintaining a new plantation forest specifically designed for the commercial harvesting of wood products. Standard requirements involve planting commercial tree species at optimal stocking densities to ensure the forest can maximise wood fibre output while actively sequestering carbon in the growing biomass.

The Boyup Brook and West Arthur regions are historically known for mixed-agricultural enterprises, primarily sheep grazing, broadacre grain cropping, and commercial timber plantations. The area experiences a Mediterranean climate characterised by reliable, moderate-to-high winter rainfall averaging between 500mm and 650mm annually. The region's environmental conditions are heavily defined by its soil types, which are predominantly lateritic forest gravels and deep gravelly loams.

The project is managed by Mitsui & Co. Wood Resources Oceania Pty Ltd (MWO), an established operator in the Australian forestry and woodchip export sector. The project was set up to dual-function as both a sustainable commercial timber resource and a carbon sink, delivering high-integrity Australian Carbon Credit Units (ACCUs) alongside soil health and biodiversity benefits.