Sustainability

Air Pollution Prevention and Control

TSC is committed to air pollution prevention and environmental protection. All of our production site comply with local environmental laws and regulations and undergo regular gas testing. The primary types of gases generated in the production process at our production sites include acid waste gas and volatile organic compounds (VOCs). In addition, a small amount of flue gas is emitted from the solid crystal welding process, which is treated by the acid-alkali scrubber, ionization decomposition, fume filtration, and VOCs adsorption treatment system, while a third-party inspection organization is commissioned to conduct regular inspections to ensure that the emission standards are met.

The air pollutants generated by each production site vary slightly due to the different nature of chip manufacturing and packaging testing. There are no emissions of sulfur oxides (SOx), ozone layer depleting substances, persistent organic pollutants (POPs), suspended particulates (PM), and other gases. In 2023, the average VOC emissions at TSC’s production sites in Taiwan were better than the emission standards set by the Ministry of Environment, whereas our Shandong and Tianjin sites recorded a VOC emission rate of 0.206 kg per hour and 0.039 kg per hour, respectively, which were better than the emission standards set by the local environmental protection agencies.

Waste Gas Treatment

The main types of air pollutants at TSC are acidic and alkali waste gases and VOCs. TSC prevents pollution using treatment equipment and processes corresponding to the type and properties of waste gases. Acidic and alkaline waste gas, as well as VOCs, are effectively managed through various control equipment, including acid and alkaline scrubbing towers, and zeolite rotor incineration systems, while continuous monitoring is conducted using the gas chromatography flame ionization detector (GC-FID) system to ensure that the control equipment operates efficiently and meets regulatory standards.

Air Pollutant TypeTreatment Method
Acid/alkaline Exhaust GasAcid and alkali wastes are collected in an acid/waste scrubbing tower for appropriate treatment, ensuring that the resulting wastes comply with emission standards.
Volatile Organic Waste GasLi-Je Site: Volatile organic compounds (VOCs) are adsorbed and concentrated using a zeolite rotor. This is followed by a continuous high-temperature desorption process and catalytic incineration. As a result, the treated waste gas meets emission standards, achieving a reduction rate of over 90% for volatile organic waste gas.
I-lan Site: VOCs are treated using scrubbing towers to remove VOCs from the waste gas. The resulting waste liquid is then discharged into the wastewater system. Since the concentration of VOCs is lower at the I-lan Site compared to the Li-Je Site, scrubbing is the preferred treatment method. This eliminates the need for concentrated purification using zeolite rotor adsorption.
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