Environmental Friendly
Air Pollution Prevention
At Wafer Works, our air pollution prevention strategy is to firstly, utilize advanced processing techniques to reduce the number of pollutants that will enter in the emissions, followed by the use of highly efficient abatement equipment to remove the pollutants in the emissions, so as to ensure that the concentration of pollutants in the air emissions are less than or compliant with government regulations. Depending on the characteristics of the air emissions, the emissions can be broadly divided into 4 categories of alkaline exhaust, acidic exhaust, volatile organic compounds and particulate pollutants. There are different types of air pollution abatement equipment dedicated to the different types and characteristics of pollution. At the same time, we also respect the right of neighboring companies and residents, which is why we have integrated the operation status of all equipment into our central monitoring system which will be observed 24 hours a day by staff on rotational shifts. All operation condition changes will be within the scope of constant surveillance and any deviation exceeding the preset values will trigger an immediate alarm.
Each year, Wafer Works entrusts third-party organizations to implement air pollutant emission testing in accordance with regulations to ensure that the total emissions of volatile organic compounds (VOCs) and inorganic acids are in compliance with the “Infrared Manufacturing Air” announced by the Environmental Protection Agency of the Executive Yuan. The entire plant emissions specified in the Pollutant Discharge Standard shall be in accordance with 0.6 kg/hour.
Water Resource Management
Both our YangMei Factory and LongTan Factory are located in Taoyuan City. According to the "Water Resources Risk Assessment Tool" of the World Resources Institute, the water resources pressure in the area where the Company is located is medium to low risk. The LongTan Factory draws water from the tap and has rainwater collection facilities, while the YangMei Factory draws water from the tap and from groundwater wells with water rights. When the plants were built and expanded, water use plans were submitted and approved by the relevant authorities and evaluated by the Second District Administration Office of the Water Supply Company to meet the water requirements of the applications. The water source comes from the Shimen Reservoir with an effective volume of 197,400,000 tons, and the direct water supply is the Pingzhen Water Treatment Plant which supplied an average of 174,440,000 tons of tap water from 2014 to 2018, so the water used by the two plants in Wafer Works only accounts for 0.012% of the water used in the area. Since its establishment, Wafer Works has placed great emphasis on water pollution prevention and water management, and we continue to promote water recycling programs each year in an effort to reduce water consumption and protect water resources.
The water source using in the manufacturing process in 2020 is mainly tap water (took up 65.20%) of total water source) and recycled water (took up 31.55% of total water source), while the rest is underground water (took up 3.25%of total water source). The waste water of LongTan factory is discharged to the waste water processing plant of LongTan science park, while for YangMei factory the waste water is discharged after treated to the SheZi River, which is not a water source or habitat protection zone and has no significant impact on the biological environment.
The waste water of Wafer Works has been processed by proper facilities and for discharging the water quality shall comply to existing laws and regulations, in addition to the regular test and examination to ensure no severe impact on the nearby water area. With regards to the monitoring system, we have 24-hour continuous monitoring and data acquisition system in our factory, by which all indexes for waste water processing is monitored, including chemical oxygen demand (COD), suspended solid (SS), fluoride concentration (F-) and pH value. Such system provides first-line warning for immediate actions taken in case of any abnormality occurs, so as to prevent any pollution from damaging the environment. Upon detecting abnormal water quality, the monitoring system will immediately inform the on-duty operator for taking correspondent action to avoid breaking the laws and prevent the environment from being polluted. Monitoring methods of authorities at all levels: Monitoring methods of authorities at all levels: YangMei Factory is located outside the industrial zone, and the wastewater discharge water quality data is collected 24 hours a day connected to the Environmental Protection Bureau. The LongTan Factory is located in Longtan Science and Technology Park. In addition to setting up a water quality board at the discharge port, the company's environmental safety unit conducts regular sampling tests of the wastewater discharge values, and the Park Administration conducts sampling tests of water quality twice a month from time to time, and the LongTan Factory cooperates with the Science and Technology Administration when it collects water for simultaneous external inspection (third impartial unit) to ensure that the operation of the facilities and the discharge water quality meet the regulatory standards.

YangMei Factory
LongTan Factory
Discharging standard
Discharging standard
PH value
Total Drain Water
The water resource management plan is executed under three strategies - reduction, reutilization and recycling. We incorporate water-saving faucets or devices and toilets to reduce water consumption; recycle the waste water discharged by water cleaning equipment and reused in the cooling towers and washing towers; at the same time rain water is collected for trees and plant watering; in addition, we also recycle the waste water induced by cutting and polishing equipment.
Waste Management
Continuous improvement and reduce environmental impact
Goals and Objectives
Waste cycling rate reaches 86%
Highlights of Program Implementation
Annually: The primary choice is reuse and recycle waste
Monthly: Monitor classification of waste and implement effective management
Performance of 2019
The waste recycling rate reached 88%
For waste management source reduction and circular economy, the Company participated in the "Award for Outstanding Enterprise in Waste Reduction and Circular Economy in Hsinchu Science Park, Ministry of Science and Technology" held by the Hsinchu Science Park Administration in 2020 and won the Group A Merit Award. We will continue to participate in the BS 8001 Circular Economy Counseling for 2021 organized by the Ministry of Science and Technology, and continue to contribute to waste reduction and recycling.
Wafer Works has equipped with complete waste processing and recycling mechanisms to ensure no output of harmful waste. Municipal waste is transported to the government-designated incinerators by garbage collection vendors; while general industrial waste such as (oil) sludge is classified, collected and handover to local qualified waste treatment vendor. According to the treatment methods, waste can be divided into resource waste, incinerator for general business waste, and recycling for general business waste. The output of each type of waste in Wafer Works in 2018~2020 is as follows:
Total waste output form for 2018
Total waste output form for 2019
Total waste output form for 2020
Weight (ton/year)
Weight (ton/year)
Weight (ton/year)
Resource waste
General business waste (incineration)
General business waste (recycling)
Harmful business waste
The main recycling guidance of Wafer Works is to reduce pollution and waste disposal. In 2020, we started to work with waste management enterprise to handle empty barrels used for containing chemical materials in the manufacturing process. Through cleaning → neutralization → testing → qualified → crushing → plastic recycling and recycling methods, those empty barrels can be recycled and this obtained the approval from the competent authority. In the proportion of waste treatment methods can be seen, the recycling rate of Wafer Works waste accounted for 88%.
Carbon Management

Energy Policy

Wafer Works is a professional semiconductor material supplier. We create a business environment complying energy saving and carbon reduction and fulfill the corporate social responsibility for environmental safety protection and continuous improvement. Our company commit to carry out the energy management system at full stretch. In order to declare our resolution in the overall target of energy management and to convey accurate information to all employees and related interested parties, we commit the following items.
1. Follow the energy laws and related regulations.
2. Support the use of energy-saving products and services and ensure the receiving of information and resources.
3. Raise energy use efficiency and continuously improve energy performance.Raise energy use efficiency and continuously improve energy performance.
4. Regularly review the energy targets to implement the energy management system.
5. Fully participate in energy conservation and carbon reduction to reduce emissions of greenhouse gases.
YangMei factory had obtained the ISO50001 management system certification in 2015.
LongTan factory had obtained the ISO50001 management system certification in 2019.

Risks and Opportunities of Climate Changes

Wafer Works had identified and analyzed possible business risk and potential impact with corresponding strategies proposed. For the confirmed risks, we have established the monitoring and control mechanism. In addition, the overall energy cost might be significantly increased under the new climate change related regulations.
Physical climate risk:
Climate changes might increase the frequency and severity of storms, floods, droughts and other climate disasters and thus impact our business and supply chains, e.g. water resource shortage or interruption of raw material supply.
Wafer Works believes that opportunities also come along with the challenge of climate change. YangMei factory received ISO50001 energy management certification, and we will continue to carry out energy saving and carbon reduction measures to face the adjustment and relieving of the climate change. Longtan Factory also obtained ISO50001 energy management verification in 2019 and will continue to take energy saving and carbon reduction measures to contribute to the environmental protection.
Risks and opportunities of water resources.
In response to the risks and opportunities of water shortage in the plant, the company is also continuously evaluating the expansion of the plant's recycled water reuse system, with the expectation that the water flowing into the plant can be re-circulated to reduce water consumption and reduce environmental impact, and to enhance water management and optimization of the water supply management system.
Risks and Opportunities for Electricity Resources.
Green energy is an inevitable global trend in the future, and the company continues to evaluate building a solar power system in the plant, with the expectation that some of the internal power can be generated with clean energy, reducing the reduction of greenhouse gas emissions.

Greenhouse Gas Inventory

Along with the development trend of global climate change, enterprises bound to play increasingly important roles in energy conservation and carbon reduction management. Wafer Works Corporation consolidates management of carbon emissions. Every year the factories conducts self-check on greenhouse gases emissions with inspection by 3rd party. And the emission data has continued to be managed to ensure continuous improvement of energy-saving and reduction of carbon emissions. Gradually decrease from 0.58 tCO2e/m2 in 2016 to 0.4ˋ tCO2e/m2 in 2020.
In the past, the base year was the year in which the GHG inventory was first performed in 2011. Since the 2011 inventory period was from 8/01 to 12/31, which was not a complete year, and the GWP was adjusted to the AR4 version at the request of the EPA, so the base year was 2016, and the base year will be set and revised in the future according to the Company's needs and relevant national policies.
The greenhouse gas organization boundary setting method of Wafer Works adopts operational control rights. 100% of the emission sources covered by the organization's boundary are owned and controlled by Wafer Works. The EPA (Environmental Protection Administration) requires to adjust GWP to AR4 version, and mainly adopts the “emission factor method”. In addition, mass balance is adopted for some of the calculation methods. The emission factor method mainly refers to the greenhouse gas emission coefficient management table 6.0.4 published on the National Greenhouse Gas Control Platform of the Environmental Protection Agency, and the power emission coefficient of the Energy Bureau.
Wafer Works' total GHG emissions (Scope 1 and Scope 2) in 2020 were 68,540.8 tons of carbon dioxide equivalent. The main source of emissions is purchased electricity in Scope 2, followed by process emissions, including perfluoropropane (C3F8) and nitrous oxide (N2O), while Scope 3 is mainly for other indirect emissions from outsourced activities and sources owned or controlled by other companies. Therefore, Wafer Works has taken into consideration the current international approach and only conducted qualitative inventory items including: transportation for staff commuting and business travel, and electric heating for cooking in external staff restaurants.
Plant-wide total
Company-wide total