Air pollution management and prevention

Management Approach (MA) for Material Topics

Air Quality Impacts Evaluation and Consultation Committee

Due to public concern of air pollutant emission from Mailiao Industrial Park affecting the air quality in Yunlin, Chiayi, and Tainan, we established the “Evaluation and Consultation Committee for Impacts on Air Quality by Mailiao Industrial Park,” and actively communicate with stakeholders through industry-academia collaboration and community communication.

Air Pollution and Waste Gas Management:

To understand the impacts of emissions on the environment and people's health, we comprehensively adopted the best available control technology (BACT), as well as the world’s most advanced process improvement and pollution prevention technologies.

The Company began complying with international standards and follows the government’s policy to ban the use of halons, CFC-11, and CFC-12 since it was established in 1992. Now, R-134a, R-401a, and R-410a are the main coolants used, and sulfur and benzene contents in gasoline and diesel products strictly follow regulations of the European Union.

The best available pollution prevention equipment is used for air pollution prevention. In 2024, the total production capacity was 28,323 thousand tons, sulfur oxides (SOx) emission per unit product was 0.098 kg/tons, nitrogen oxides (NOx) was 0.215 kg/tons, and the total suspended particulates (TSP) was 0.010 kg/tons.

Note: Source: Summary of total volume of air pollutants discharged by FPCC

SOx emissions were 2,786,436 kg, NOx emissions were 6,082,626 kg, and TSP emissions were 284,928 kg in 2024.

Historical SOx, NOx, and TSP Emissions

Our SOx, NOx, and TSP emissions in 2024 were lower than 2023, and was mainly due to the total production capacity of 28,323 thousand tons in 2024 being lower than the 30,235 thousand tons in 2023. In the future, we will continue to reduce emissions of SOx, NOx, and TSP per unit product, continue to add air pollution reduction equipment, add the most suitable amount of ammonia, and plan the use of low sulfur fuels in processes.