5.2 Resource Sustainability Management/h4>

5.2.1 Water Resources Management

Our water is mainly from water companies without using groundwater or other water sources. The water in each office building and service site is only used by employees and some clients, without significant negative impact on the water source. The used domestic sewage is discharged from the sewers and treated through the sewers. Due to employees returning to the office after remote work, the average water consumption in 2022 increased compared to 2021. However, when compared to 2020 (prepandemic), the average water consumption decreased by 0.89%.

5.2.2 Waste Management

The waste in PSC’s building mainly comes from domestic waste. To be friendly to the environment, we have continued to reduce waste and implement a waste classification system for recycling for many years and classify waste as general waste, recyclables, and kitchen waste. Employees sort their waste by themselves in the centralized waste temporary storage area, and the building property management company will put it together. General waste will be transported to an incineration plant by a qualified waste transport company, and the recyclable resources will be handled by recyclers. Confidential documents are destroyed depending on each unit’ retention period in compliance with the principle of security and confidentiality to prevent the leakage of client data

The head office building began to weigh the waste in 2020 to strengthen waste management, and we added significant indirect emissions in addition to the existing direct emissions and indirect emissions in alignment with ISO 14064-1:2018 Greenhouse Gas Emission Inventory.