All of WHA Group's required projects have undergone the Environmental Impact Assessment (EIA) Study in accordance with the requirements and conditions outlined in the Promotion and Conservation of National Environmental Quality Act, B.E. 2535 (1992). The EIA study considers the environmental and social impacts within a 5-kilometer radius of the project site to ensure that these impacts are monitored, mitigated, and controlled appropriately. Prior to proceeding with project construction, commencement, and operation phases, the EIA must be approved by the Office of Natural Resources and Environmental Policy and Planning (ONEP).

Following that, WHA Group ensures that all environmental schemes specified in the EIA requirements are followed. The project's performance against EIA requirements and standards is monitored and reported to the Industrial Estate Authority of Thailand (IEAT), Natural Resource and Environmental Policy and Planning, and local provincial offices on a bi-annual basis, covering the months of January to June and July to December, respectively. In 2021, no monitoring parameters were found to be in violation of environmental laws or EIA requirements . In addition, WHA Group oversees the overall environmental management schemes of its customers located within the industrial complex to ensure best practices and compliance with regulated requirements. If not, the WHA Group will work with the IEAT to take appropriate next steps. Additional environmental practices with customers in accordance with EIA requirements are detailed in the following chapters.