Wastewater management

River not only serves as a source of water, but also provides habitat that is vital to creating biodiversity. For this reason, we have devoted part ofour environmental focus to keeping rivers clean. By tracking the volume of water discharged, we are able to ensure effective management of production waste water. In addition to the improvements made in 2016 , the Company also implemented a number of environment-friendly measures this year, such as:

Furthermore, our stringent requirements on hazardous substances in raw materials and consumables exceed international regulations. The discharge of wastewater does not contain harmful substances that would adversely affectreceiving bodies of water.Maximun Group's Liuwu Plant site discharges industrial wastewater incompliance with the local standards, "Water Pollution Discharge Limits," of Guangdong Province. Only domestic and public water is used in all other plant sites, which is discharged into local groundwater pipes or industrial management areas as required and, therefore, no significant impact on local water bodies has been posed.

Air pollution management

Air pollution poses adverse impacts on climate, ecosystem, air quality,habitat, agriculture, and human and animal health. Ongoing threats such as deterioration of air quality, ocean acidification, deforestation and public health issues have awoken law makers local and abroad to regulate gas emissions. Forthis reason, we regularly measure emission data that is relevant to causing air pollution, and strive to reduce emission of such gases.

We have summarized 3 main points from the air pollution data:

In terms of air pollution control, the main types of pollutant generated fromplants include: volatile organic compounds (VOC), benzene, toluene, xylene,Total VOCs, non-methane hydrocarbons (NMHC), lead and lead compounds, andtin and tin compounds. To treat the above air pollutants, Primax first collects organic and particulate pollutants separately from exhaust in an enclosed environment, then uses the appropriate air pollution control equipment to treat the respective pollutions until they conform with emission standards. Our exhaust treatment process has been improved by adding UV photodegradation to existingwater-sprinkling and activated carbon absorption. These three processes have effectively enhanced Primax's exhaust treatment capabilities at various plants.All gas emitted by Primax Group in 2023 was 100 % compliant with regulations. Inorder to keep controlling VOCs emissions, in addition to ensuring the performance of exhaust gas treatment equipment, Primax plans to focus on the sources at first and formulate VOCs reduction plans with respect to major plant sites.

Primax Group air pollutant emission statistics - 2023

Waste management

Waste produced by Primax Group can be classified into general waste (domestic waste), recycled waste,and industrial waste (including hazardous waste and general industrial waste). In 2023 , the total amountof waste was 2,515.0076 metric tons, down 5.69% from the previous year. The waste was classified by the disposal method. A total of 1,114 .5115 metric tons (hazardous waste 48.4044 metric tons, and non-hazardous waste 1,066.1071 metric tons) were directly disposed of in 2023. The total amount of waste transferred during the disposal weighted 1,388.5906 metric tons (hazardous waste: 103.8704 metric tons;non-hazardous waste: 1,284.7202 metric tons). For more details, please see "Primax Group Waste Chart"

We try not to dispose or bury our obsolete equipment; instead, we do what we can to make them reusable one way or another, and have gone to great extent in making sure that these equipment are recycled ina proper manner that poses no threat to employees' health or the environment. All hazardous waste will be properly stored and managed, and legitimate waste treatment companies are entrusted to handle the disposal. In 2023 , the waste management of the entire Primax Group was appropriate, and there were no major waste leakage incidents. All waste disposal methods were in compliance with local national regulations.

Environmental protection expenditure

By leveraging its professional advantage, Primax Group has excelled in all assessment indicators and continues to be pro-active in improving production procedures and reducing energy consumption. Owing largely to our dedication in environmental protection, we have established our reputationas a role model business characterized by sound financial position, advanced technology, low resource consumption, low pollution, and high potentials.

Environmental protection expenditure helps us determinethe efficiency of our environmental measures, and provides useful information for cost analysis. We will be keeping track and analyzing these expenses in a continuous and thorough manner so that the executive management may have a better understanding to the value of investments made for the purpose of mitigating environmental impacts.Meanwhile, we will continue to develop a comprehensive environmental accounting system to track a broader variety of information. Waste treatment, emission treatment, remedialcosts, and prevention/environmental management costs are being monitored closely. Environmental expenses for 2023 were divided into six categories including: environmental equipment and engineering, management system, human resources, testing equipment, investments for energy saving,and information management system. For the reporting period, environmental expenses of the Group amounted toNT$ 71,514,684 , which were NT$ 22,598,806 or 24.01% less compared to 2022 .