Pollution Prevention

The air pollution source of Actron mainly comes from the volatile organic compounds (VOCs) caused by the process cleaning chemical agents. We implement various appropriate treatments based on the characteristics of high and low boiling points of VOCs.  In addition, according to regulatory requirements, VOC emissions may not exceed 0.6kg/hr. The historical inspection data and the regulatory requirement difference rate are analyzed to be far lower than the statutory value. In 2025, Actron’s VOC emissions intensity was 6.899 kg per NT$ million of revenue, down 34.09% from 10.468 kg per NT$ million of revenue in 2024.

The historical VOC emissions test results have remained well below the regulatory limit of 0.6 kg/hr. In 2025, VOC emissions were measured at 0.36 kg/hr, demonstrating effective emissions control.  VOC emissions mainly originate from equipment using isopropyl alcohol (IPA). To further reduce VOC emissions, Actron has advanced its low-carbon product transition and mass production of high-efficiency diodes (LLD), gradually reducing the use of IPA-related equipment. In 2025, IPA waste liquid intensity was 5.082 kg per NT$ million of revenue, down 88.55% from its historical peak in 2017. These efforts have reduced both waste generation and VOC emissions.

All of the gas emissions from our production process comply with the Air Pollution Control Act and the Air Pollution Control and Emissions Standards for the Semiconductor Industry in Taiwan. We also perform daily operations according to the internal management, in order to prevent the occurrence of pollution. Furthermore, we periodically monitor the air quality and calibrate the accuracy of the continuous monitoring facilities, in order to ensure the effectiveness of the air pollution control measures. Furthermore, we do not use ozone depleting substances in our manufacturing process, and we do not emit gas pollutants such as nitrogen oxides and sulfides.

To ensure strict compliance with environmental regulations, Actron processes and tests all wastewater before discharging it into the Nankan River. Actron's wastewater comprises general process wastewater, nickel-containing liquid, fluoride-containing wastewater, and other liquids. In 2025, the total drainage amounted to 225 million liters.  Water discharge intensity was 0.028 ML per NT$ million of revenue, down 7.57% from 0.030 ML in 2024. In May 2024, Actron installed a cutting and grinding water recycling system to separately collect, treat, and reuse wastewater from cutting and grinding processes, demonstrating the Company’s efforts in water pollution prevention and resource recycling.

The general process wastewater is uniformly collected by the sewage treatment plant for treatment, and the wastewater source for treatment includes the sewage sources of pure water equipment re-cleaning wastewater, alkaline waste liquid, acid waste liquid, cutting process cleaning water, electroplating process cleaning water, wet etching process cleaning water, fluorine-containing cleaning water, etc. In accordance with the inspection items required for the wafer manufacturing and semiconductor manufacturing industry specified in the “Water Pollution Control Measures and Test Reporting Management Regulations”, we have obtained the inspection item exemption approval official document from the Department of Environmental Protection, Taoyuan City Government in 2022 (Tao-Huan-Shui-Zi No. 1110026995), and the items exempted from inspection include zinc, cadmium, lead, total chromium, total mercury, arsenic, cyanide, hexavalent chromium, boron and molybdenum. The effluent inspection was conducted on November 14, 2025, and the results indicate compliance with effluent standards.

In 2025, the recycled water amount was 93 million liters, and the ratio of the recycled and reused water volume over the total water consumption is 27%. For the period from 2015 to 2025, the accumulated recycled water volume was 803 million liters. Actron aims for the goal of process recycled water of 90%, and has consecutively completed fluorine-containing wastewater recycling and electroplating (nickel-containing) process cleaning wastewater recycling systems, in order to expand the recycling system and to handle the full amount of recycling and reuse of wastewater discharged from the present production process, thereby reducing the wastewater discharge. We have also set the goal of recycling and reuse of 40% of effluent wastewater, in order to increase the benefits of recycling and reuse.

Regarding the waste management, Actron assigns the Factory Facility Department and Environmental Safety and Health Department to be responsible for the facility management and administrative management of “General Industrial Waste” and “Hazardous Industrial Waste”.  With the establishment of Actron’s Plant 3 and the installation of equipment and deployment of personnel, waste generated from production line setup, equipment packaging, and employee activities increased. In addition, ongoing changes in the product mix resulted in total waste generation of 868.39 metric tons in 2025. Waste intensity was 107.130 kg per NT$ million of revenue, up 0.88% from 2024 but down 66.02% from 315.253 kg per NT$ million of revenue in the 2015 base year.  All waste is handled by qualified external contractors, with no violations reported. Industrial waste is a material environmental issue associated with product manufacturing. Actron therefore continues to closely monitor and actively manage waste generation and has set a target to reduce waste intensity by 50% by 2030 from the 2015 baseline.