▼Management of material topic "Water Stewardship" at Formosa Laboratories in 2024
Enhancing Water Efficiency
The process water used accounts for a relatively large part of the plant's total water consumption at Formosa Laboratories, with the remaining water primarily being domestic and sourced from tap water. Additionally, flowmeters have been installed to monitor, measure, and record water intake. The monitoring equipment is also maintained regularly to ensure accurate and efficient use of relevant information.
Since 2015, following the implementation of a water recycling system, Formosa Laboratories has developed a mechanism to reuse treated water for cooling systems, scrubbers, and vacuum systems.
In 2024, the water recycling ratio was effectively improved through standardized recycling by stages and control and optimization of electrical conductivity. The recycled water volume reached approximately 142,658,000 megaliters, and the recycling rate was calculated as 31.53% based on the annual water intake; the recycled water volume increased by 14.67%, and the recycling ratio rose by 2.44% compared to 2023, demonstrating significant and continuous improvements in water efficiency. In the future, we will continue to evaluate and enhance the water recycling system and its efficiency to further improve water use.
▼ Statistics on Recycled Water Volume Over the Past Three Years (Unit: megaliters)
Note：
- Water withdrawal and discharge volumes are based on water meter readings.
- All withdrawn water was classified as freshwater, sourced exclusively from third-party supplied tap water. No surface water, groundwater, seawater, or produced water was used.
▼Statistics on the amount of water recycled at Formosa Laboratories over the past three years (Unit: megaliters)
Minimizing the Impact of Water Discharge
Formosa Laboratories has established wastewater treatment units to monitor and control the quality and quantity of effluents according to the water quality standards and limit values specified in the Effluents Standards issued by the Ministry of Environment. All the treated effluents are freshwater, which is discharged into Haihu Creek (surface water). Formosa Laboratories discharged 313.184 megaliters of water in 2024.
In 2024, we enhanced the aeration system of the biological tank to enhance COD reduction capacity and efficiency. We regularly outsource effluent quality testing, and in 2024, all water quality tests met regulatory standards.