The plant’s water source is drawn from the water company and groundwater. Although it is not located in a water-stressed area, we recognize that water usage can significantly impact the local living standards. Therefore, special attention is paid to the relevant government laws and regulations when it comes to water withdrawal and discharge. In light of the drastic changes in the water environment, more and more frequent alternation of droughts and floods, and the increased concern that stakeholders have about the issue of water resources as a result of climate change over the years and in order to get prepared for the complex water resource issue, PTI enforced water resource management according to its three major strategies, namely reduction, reuse, and recycling and continues to promote water conservation measures in respective factories.

Water Governance

PTI attaches great importance to water management issues. We established water risk identification and response procedures, completing the operating mechanism of water governance by the approach of "top-down command and supervision, bottom-up response and report". Every year, regularly conduct the implementation of issues such as sustainability and water management to various interorganizational committees, report to the board of directors and continue to strengthen the organization's resilience in the face of water stress. (Please refer to the 2023 TCFD Report for details on water management in practice.)

Dicing/Grinding Recycled Trend of PTI Taiwan

The PTI Taiwan Plants capable of packaging process water recycling are the Hukou Plant (P2), Datong Plant (3A), Datong Plant (3C), and Hsinchu Science Park Plant 1 (P8). These plants are installed with dicing/grinding wastewater recycling systems and the manageable hourly volume is designed based on the estimation of production needs. In response to our company's production plans, the recycling systems are constantly expanding; the recycling equipment efficiency rate from the dicing/grinding process reached more than 85% in 2018 to 2022.

The recycling rate of the dicing and grinding process recycling water system in PTI Taiwan was 88.68% in 2023. The water recycled in the packaging process in 2023 totaled 1,282.359 megaliters, which was a decrease of 86.708 megaliters (a decrease of approximately 6.33%) compared to 2022 mainly due to the process adjustments. PTI will continue to improve their systems and adopt reliable and easy-to-maintain key components to increase the amount of water recycled and enhance the recycling efficacy. In 2023, the process water recycling system was installed at the HSP Plant 3, with a daily capacity of treating 800 tons of wastewater. The equipment has a treatment efficiency of over 85% and will be officially operational in 2024.