Water Resources and Wastewater Management

Water Consumption
(Million liters)

Overview of water usage in the factory area

Hon Chuan's packaging plants (Taichung Plant and Taichung No. 2 Plant) are located in Xitun, while the beverage plants (Aseptic Plants1, 2, and 3) and the Free Trade Plant are situated in Wuqi. Water is sourced from Liyutan Reservoir, Shigang Dam, and groundwater. The Taichung Plant primarily uses groundwater for air conditioning and process cooling. The Wuqi and aseptic plants use tap water year-round, with increased usage during summer and peak production season (April–October). Wastewater is treated to meet effluent standards and then discharged into the industrial park sewage system.

Water Type and Water Consumption(Unit: million liters)

Source \ Business	2021		2022		2023
Source \ Business	Packaging	Beverage	Packaging	Beverage	Packaging	Beverage
Ground water	51.62	1,348.35	104.89	1,415.5	120.16	1,476.84
Tap water	180.44	-	141.75	-	144.84	-
Total	1,580.41		1,662.14		1,741.84

Water Discharge/ Water Withdrawals Statistic(Unit: million liters)

Year	2021	2022	2023
Water Discharge	922.42	1,026.86	1,052.94
Water Consumption	657.99	635.28	688.90
Total	1,580.41	1,662.14	1,741.84

Packaging Division WUR (water consumption(ton) / NT$ million revenue)

It is expected that through achievements in water conservation and environmental protection, the Company can enhance its sustainable competitiveness in the market.

Packaging Division

decreased from 51.93 to 0

Beverage Division WUR (Water consumption/NT$ million revenue)

From 2022 to 2024, the Water Use Ratio (WUR) for the Beverage Division decreased from 3.55 to 3.41., indicating effective management of water resource recycling.

Beverage Division

decreased from 3.55 to 0

Total Wastewater Discharge

In 2024, the total wastewater discharge reached 1,109.82 million liters, a 5% increase from 2023. Total water consumption reached 714.65 million liters, a 4% increase from 2023.
Hon Chuan continuously monitors wastewater volume and water quality, with irregular COD testing performed by designated personnel. Wastewater from the beverage division primarily comes from cleaning processes and tea residue dewatering. It undergoes chemical coagulation and biological treatment before being discharged into the industrial park sewer system. Each plant conducts semi-annual testing and reporting in accordance with the Water Pollution Control Regulations. In 2024, all results complied with the regulatory standards.

All wastewater from the factories is treated to meet regulatory discharge standards before being discharged into the sewage system within the industrial park. Apart from rainwater, wastewater is not directly discharged into surface water bodies. The company has established emergency response procedures and conducts regular training and drills related to wastewater leakage to prevent pollution and environmental impact from abnormal discharge.

Water Conservation Measures

A water source vulnerability assessment was conducted in 2021, with action plans established. During dry seasons, water recycling and external water purchasing measures are implemented.

Risk Introduction	Mitigation Actions
Regional Water Sources: 1. Drinking water shortages during dryseasons 2. Aseptic beverage plant accounts for 38.78% of Taichung Port Industrial Zone water intensity	During water restriction 1. Establish early warning mechanisms and closely monitor government announcements 2. During "yellow alert" pressure reductions, coordinate with clients to adjust production batch quantity and production line capacity 3. Monitor water inflow into the zone’s storage tanks and adjust schedules accordingly 4. Coordinate with clients to increase single production batch quantity to reduce switching frequency 5. Set up external water purchasing channels and implement water recycling measures
Water Supply Continuity Pipeline ruptures from regional construction or water quality abnormalities caused by typhoons	1. Promptly investigate water quality anomalies and report to the water utility company for remediation 2. Respond according to raw water turbidity alarms or water stoppage protocols 3. Establish alternative water supply channels
Water Usage Fee Implementation	Promote process water recycling and coordinate with clients to increase single batch production quantity
Stakeholder Concerns Water Quality and Environmental Issues	Comply with the Taichung Port Science Industrial Park's wastewater discharge standards: BOD ≤250 mg/L, COD ≤450 mg/L, SS ≤250 mg/L, and other discharge indicators