CHC Group pays close attention to changes in the water environment. When utilizing water resources, we comprehensively consider relevant policies and regulations, environmental risks, and business needs, striving for effective scheduling and reasonable allocation. Additionally, through water-saving equipment, water supply regulation, recovery and reuse of reclaimed water, and water conservation actions, we continue to improve the utilization efficiency of water resources. In order to strengthen water resource management, the Group also records the water use behavior, water consumption types, water consumption volume, and discharge volume of each operating site.
In 2023, the Group’s total water consumption was 336,694 m3, and the water intensity per million NTD revenue was 11.00 metric tons. Among the total water consumption, about 72% was used for construction purposes, and 23% was used for water resource treatment. The total water consumption and water intensity increased compared to the previous year, primarily due to the addition of more construction projects and an expansion of manpower, resulting in higher consumption for both domestic and construction purposes. However, operational water usage decreased by 14.3% compared to the previous year.
Note: The 2021-2023 water resource inventory boundary includes the Group’s headquarters building, CEC’s construction sites, HDEC Corp.’s operational bases, and construction sites.
On the other hand, CHC Group implements water resource recycling and reuse. Reclaimed water is primarily used for operational equipment use and cleaning, inflow water for reclaimed water treatment, water for wastewater treatment pools, environmental cleaning, dust suppression in construction projects, wetland replenishment, and roadside tree irrigation, among other purposes. In addition to reducing the Group’s own water consumption, reclaimed water is also provided to external units for purposes such as street cleaning or watering trees. In 2023, all water resource centers of the Group achieved their targets for reclaimed water reuse, totaling 62,095,941 metric tons of reclaimed water. This represents a growth of approximately 55% compared to the previous year. The reclaimed water rate reached 54%, effectively enhancing water resource utilization efficiency.