Page 40 - 2025 CPC Corporation,Taiwan

Air pollution reduction and water use efficiency enhancement
The main sources of air pollutant emissions from CPC are refineries and petrochemical plants, including total suspended particulates (TSP), sulfur oxides (SOx), nitrogen oxides (NOx), and volatile organic compounds (VOCs). In order to improve air quality, CPC has implemented 38 air pollution improvement plans from 2017 to 2031. It is expected that after the completion of the plan, TSP will be reduced by 10.0%, SOx will be reduced by 32.0%, NOx will be reduced by 16.4%, and VOCs will be reduced by 20%.
In response to the risk of water shortages, high-efficiency equipment is used to improve water efficiency. In 2024, every drop of water in CPC’s refineries and petrochemical plants has been used an average of 8.37 times, with an average water recovery rate of 98%. In order to expand water sources, Dalin Refinery has used approximately 10,000 metric tons of recycled water per day starting in 2022, and Taoyuan Refinery has also signed a contract with the Taoyuan City Government to subscribe for approximately 10,000 metric tons of recycled water per day, and has started trial use in October 2024.
Site transformation, green and sustainable renovation
CPC has established a dedicated unit to implement underground environmental pollution prevention and remediation work, and actively develops and applies biological remediation technology. By the end of 2024, a total of 59 contaminated sites have been released from the control of the competent authorities, demonstrating a high degree of determination in remediation. CPC has completed the work of delisting the land (3 hectares) in Kaohsiung’s Asia Bay Area from the management of the competent authorities in June 2024, releasing the land to comply with national policies and accelerate the Asia New Bay Area 2.0 development plan to attract industrial clusters and provide a livable living environment.
Adopting the inspection methods of the National Environmental Protection Agency, CPC has established an independent soil and groundwater inspection platform and an environmental quality action laboratory to provide timely inspection of underground environmental change indicators at each site. The Oil Pollution Testing Mobile Laboratory also won the 2024 National Brand Yushan Award. In addition, Fengde Oil Supply Center has established the country’s first biological soil remediation field to implement the sustainable reuse of contaminated soil.
Effluent
COD (ppm)
SS (ppm)
monthly average
37.25 280
4.8 100
2024 Environmental Footprint Material investment
Item
Taoyuan Refinery
Standards Effluent
Dalin Refinery
Linyuan Petrochemical Plant
Standards Ocean Effluent
21,616
Thousand kiloliters
43.3 100
15.7 30
22.1
8.3
31,170 77
1,484,052
2,081,763
Refinery/petrochemical output
5,587 8,305 366 823
Thousand kiloliters Thousand kiloliters
Thousand cubic meters
Thousand kWh
Thousand kiloliters Thousand kiloliters Kilotons Kilotons
1,408,697
Thousand cubic meters
Oil (ppm)
4.4
10
<1.0
1.05
20
472
Thousand kiloliters
Phenol (ppm)
0.0081
1.0
<0.01
0.0048
1.0
Material emissions
Gas emissions
CO2
6,845,180note
Tons
NOx
2,589
Tons
SOx
1,208
Tons
TSP
223
Tons
VOC
3,362
Tons
COD
476
Tons
Waste Water
12,243
Thousand cubic meters
Waste
105,097
Tons
2,875
Thousand kiloliters
2,507
Thousand kiloliters
906
Thousand kiloliters
38
Note: the amount of CO2 emission is 2023 figure.
Note: In 2024, the statistical scope includes CPC’s Green Technology Research Institute, Project & Construction Division, LNG Project & Construction Division and Cianjhen Storage and Transportation Station, resulting in differences with the 2023 data.
Water Usage
Crude oil
Fuel Oil
Fuel Gas
Natural Gas
Diesel
Gasoline additives (MTBE)
Purchased Electricity
Fuel oil
Vehicle fuel
Jet fuel
Liquefied petroleum gas
Ethylene
Propene
Butadiene
128
Thousand kiloliters