TA YA manages pollution in accordance with the Air Pollution Prevention Operating Procedure and the Water Pollution Prevention Operating Procedure under the environmental management system to comply with pollutant emission standards. In accordance with the Air Pollution Control Act and related regulations, the Company has obtained installation and operating permits for stationary pollution sources. Pursuant to the Water Pollution Control Act, TA YA regularly commissions environmental testing organizations licensed by the central competent authority to test the quality of untreated wastewater and effluent, and conducts testing and reporting according to the items and frequencies specified in its water pollution control permit.
Air Pollution Prevention
The primary air pollutants generated at TA YA's Guanmiao Plant are volatile organic compounds (VOCs) and particulate matter. VOCs include substances such as toluene and xylene, with emission sources including power cable manufacturing, enameled wire manufacturing, and other uncategorized processes.
Toluene emissions mainly result from solvent evaporation when toluene-containing raw materials and coatings are used in other uncategorized processes. Xylene emissions are mainly generated during enameled wire manufacturing because varnish contains organic solvents that evaporate during coating and high-temperature curing. In addition, VOCs may be generated during the heating, plasticization, and extrusion of polyvinyl chloride (PVC) and low-density polyethylene (LDPE) in power cable manufacturing due to the volatilization of raw material additives and thermal degradation.
Particulate matter is mainly generated during raw material weighing, storage and unloading, and mixer compounding processes in power cable manufacturing. TA YA has installed pollution control equipment, including baghouse dust collectors and catalytic converters, at relevant emission sources. The pulse-jet baghouse dust collection system achieves a treatment efficiency of 95%, while the catalytic converter achieves a treatment efficiency of 99%.
TA YA has progressively tightened its VOC emission control requirements. In addition to emission standards, VOCs may also generate odor concerns, which are expected to face increasingly stringent regulation. In 2025, TA YA implemented improvements to production equipment, reducing odors in the workplace environment.
