Since 2020, Hsin Tung Yang’s Dayuan Plant has implemented a water resource management policy and built diverse recycling systems, comprehensively promoting process water conservation and the recovery and reuse of rainwater and effluent. In 2025, total water consumption across all sites was 271.30 million liters. Through measures such as process water conservation, the recovery and reuse of rainwater and effluent, and the optimization of water circulation, the Company ensures the safety of reclaimed water for reuse. All reclaimed water undergoes 100% effluent water-quality testing, ensuring that water quality is better than national discharge standards. The Company expects to achieve its goals of continuously improving the recovery rate and reducing water use intensity per unit by 2030.

Wastewater Management

Following the principle of pollution prevention, Hsin Tung Yang implements wastewater management measures adapted to local conditions. At the Dayuan Plant, water quality is strictly controlled through systems to ensure that effluent is better than national standards and that the recovery and reuse rate continues to rise; at national highway service areas and airport retail outlets, routine maintenance such as grease-trap cleaning and the clearing of drainage ditches and pipelines is carried out. In the future, the Company plans to introduce advanced water treatment technologies to comprehensively strengthen effluent quality and resource circulation efficiency.

2023–2025 Implementation Measures and Benefits​

Sterilization Hot Water Recovery and Reuse​

• Implementation of a Retort Hot Water Recovery System:​
  Annual recycled water volume reached nearly 23,000 metric tons, with a recycling rate of 32.2%​
• Strengthen the circular utilization of water resources within the plant​

Wastewater
Recycling and
Treatment​

• Improve recycled water quality: Introduce advanced
  wastewater and recycled water treatment equipment,
  enabling the recovery of 120 metric tons of water per day and reducing wastewater discharge by 43,800 metric tons annually​
• Gradually expand water resource system applications: ​
  Expand applications to cooling and plant utility water uses​

Implement tion of a Wastewate Treatment System​

• Optimize wastewater treatment: ​
  Ensure that effluent water quality exceeds national discharge standards​
• Implement water quality monitoring and management mechanisms:​
  Enhance wastewater management efficiency and continuously optimize equipment and monitoring mechanisms​

Promote Product
Water Footprint
Verification​

• Promote phased product verification under ISO 14067:
  1. Promote product carbon and water footprint verification​
  2. Gradually expand to chilled products and dried meat product categories​

Effectiveness of Wastewater Management Actions at Hsin Tung Yang Operating Sites

National Freeway Service Area

Install new wastewater grease traps and implement operations according to high standards

Airport Shopping Malls

• Clean small grease traps daily; outsource cleaning of large grease traps weekly
• Conduct wastewater pipe unclogging 2–3 times annually
• Perform internal restaurant kitchen pipe cleaning as needed

Headquarters Office

Conduct "grease trap cleaning and microbial dosing operations" once a month at the grease traps beneath the kitchen

Water Conservation Actions and Results

Hsin Tung Yang follows water resource management regulations and the ISO 14001 Environmental Management System, incorporating water conservation into its environmental management framework. The Company has also established water usage monitoring, statistics, and disclosure systems based on two key management principles—"improving water resource use efficiency" and "water conservation." Hsin Tung Yang promotes water conservation measures across its operating sites.