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
 
Since the construction of factory, Wafer Works highly values water pollution prevention and water resource management and we constantly promotes water recycling program every year and endeavors in reducing water consumption for water resource protection.
 
The water source using in the manufacturing process in 2018 is mainly tap water (took up 62.10%) of total water source) and recycled water (took up 35.95% of total water source), while the rest is underground water (took up 1.95%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 established the monitoring and data capturing system, 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.
 
 
Item
Unit
YangMei Factory
LongTan Factory
Discharging standard
Average
Discharging standard
Average
PH value
PH
6~9
7.63
5~9
7.6
COD
mg/L
<100
43.26
<500
98.18
SS
mg/L
<30
5.7
<300
33.95
F-
mg/L
<15
6.34
<15
9.55
Total Drain Water
M3
999,233
940,237
 
 
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
 
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 main recycling guidance of Wafer Works is to reduce pollution and waste disposal. In 2018, 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 86%.
The ring etching process HF is recycled and reused (in 2018, the HF waste acid recovery and reuse amount of Longtan Plant was 18,390 liters, and the recycling ratio was 11.33%).
 
 
 
 
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.
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 is scheduled to obtain verification of managerial system ISO50001 by end of 2018.Climate change has been considered an important global environmental issue, and Wafer Works is also committed to various efforts, including energy saving, energy efficiency improvement and other solutions, to reduce the impact and manage possible risks induced from the climate change.
 
 

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.
 
 

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.
 
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 6.0.3 published on the National Greenhouse Gas Control Platform of the Environmental Protection Agency, and the power emission coefficient of the Energy Bureau.
 
The total greenhouse gas emissions of Wafer Works in 2018 (Scope 1, Category 2) is 79,419.80 tons of carbon dioxide equivalent. The main emissions are from Category 2 purchased electricity, followed by process emissions sources, including Octafluoropropane (C3F8) and nitrous oxide (N2O). The category 3 is mainly for other indirect emissions generated by outsourcing activities and is provided by other companies. The source of the possession or control is the main source. Therefore, Wafer Works considers the method adopted at the current international stage can only be reference for investigation.