At WT, water is primarily used across all operational sites for air conditioning circulation in office and warehouse areas, as well as for employee domestic needs. All water is supplied by local municipal utilities and sourced from freshwater systems. These operations do not pose a significant impact on local water resources or surrounding ecosystems.
To ensure the safety and quality of drinking water for employees, water dispensers are fitted with filters that are replaced monthly to effectively remove harmful substances. In addition, water quality is tested annually by SGS Taiwan to ensure it meets health and safety standards. Aside from evaporative losses from air conditioning system, where data is not practically measurable, other wastewater generated from daily employee use is discharged into municipal sewer systems through the building’s wastewater pipelines.
WT evaluates water-related risks using the World Resources Institute’s (WRI) Water Risk Atlas and has set a target to reduce water usage by 1% annually. According to the 2024 assessment, all disclosed operational sites were located in regions not classified as high or extremely high water stress areas. In 2024, the total disclosed water consumption was 23.62 ML (1,000 m³), covering operations in Taiwan, Hong Kong, South Korea, and China.
Water Resources Inventory Overview (Unit: ML)
Water ConsumptionWater Discharge17.0117.01202011.1411.14202112.9512.95202221.3221.32202323.6223.622024
Note 1: The 2024 reporting boundary includes operational sites in Taiwan, Hong Kong, China, and South Korea. At certain office locations, water charges are embedded within property management fees and are not billed separately, rendering actual water usage estimations infeasible. As these locations account for an immaterial share of overall water consumption, they have been excluded from the disclosed figures.
Note 2: To enhance water resource management, WT has adopted the use of water meter readings from utility bills for statistical purposes starting in 2021. For years prior to 2020, water consumption was estimated based on water bills and unit pricing.
Note 3: Water usage includes evaporative losses from air conditioning systems and employee drinking water, which are considered immaterial and cannot be reasonably measured. All effluent is classified as domestic sewage and discharged directly into municipal sewer systems via the buildings’ infrastructure. As no flow meters are installed to capture actual discharge volumes, water discharge is assumed to equal water consumption for reporting purposes.
Water-saving Improvement Measures for Taiwan Headquarters’ Affiliated ParkContinuously replace water-saving devices/fixturesConduct inspections of water faucets and water usage patrols, and implement improvement plans for abnormal situations.Strengthen promotion and dissemination of information related to water conservation to prevent inadvertent waste.The water consumption of WT’s Zhonghe headquarters in Taiwan, as externally verified, was 12.28 ML in 2024, representing a 6.4% increase compared to 11.50 ML in 2023. The increase was primarily due to the annual cleaning of the cooling tower and additional water discharge required for tenant fire safety system inspections in 2024. WT will continue to coordinate with the building management committee to implement relevant water-saving improvement measures.
Water Use Verification
Water consumption data for the verified Zhonghe office in Taiwan over the past two years is as follows:
Note: The inventory scope for both 2023 and 2024 covers the Zhonghe headquarters office in Taiwan. Verification for 2025 has been commissioned to the British Standards Institution Taiwan (BSI Taiwan).
In alignment with the Ministry of Economic Affairs’ goa
WT and its consolidated subsidiaries achieve 100% GHG i