Western Treefarm Project 2B (WTP2B)

Western Treefarm Project 2B (WTP2B) is a plantation forestry project located in the South West region of Western Australia, near the rural locality of Tonebridge and approximately 65km east of the major regional town of Manjimup. It was registered in April 2025 and initially covers an area of 967.20 hectares.

Plantation forestry projects under the 2022 methodology involve storing carbon by establishing a new plantation forest or converting an existing short-rotation plantation to a long-rotation plantation. Standard requirements include maintaining baseline tree stocking densities, actively managing the trees for the commercial harvesting of wood products, and using approved models (such as FullCAM) to accurately estimate net carbon abatement over the permanence period.

The region east of Manjimup is well-known for extensive commercial timber and blue gum forestry operations, alongside sheep grazing, broadacre cropping, and viticulture. The area is considered to have reliable, moderate to high rainfall within a warm-summer Mediterranean climate. Soils across the surrounding catchments are typically dominated by well-draining ironstone gravels, sandy duplex soils, and red-brown loams.

This project sequesters carbon through both the establishment of new commercial plantations and the conversion of existing short-rotation forests to long-rotation timber. It is operated by Mitsui & Co. Wood Resources Oceania Pty Ltd, a 100%-owned subsidiary of Mitsui & Co., Ltd., and a major manager of the Australian forestry supply chain since 1995. In December 2025, a project variation was approved to remove some originally listed areas from the project boundary. As of October 2026, public registry updates indicate the WTP2B project has successfully been issued 426 Australian Carbon Credit Units (ACCUs).