Environment Sustainability

WIN cares about climate and environmental protection issues, complies with regulatory requirements, and continues to dedicate efforts to reduce carbon emissions and reduce the impact on the environment. WIN has adopted a corporate sustainable development philosophy that supports environmental protection and green production and we continue to supervise and improve emissions reduction measures for energy management, greenhouse gas emissions management, air pollution control, water resource management, and effluents and waste management. We implement these measures and work hard to reduce the impact of the production process on the environment in accordance with our policy. WIN has obtained ISO14001 Environmental Management System certification for all plants since 2002.

Reduced electricity consumption

ton CO2e
Reduced carbon emissions

Recycled water

Greenhouse Gas Management


With the support and supervision of Directors and senior executives, WIN assembled members of related departments and established the Task Force on Climate-related Financial Disclosures (TCFD) operation team to respond to climate emergency issues. We identified potential risks that may threaten the Company as well as opportunities based on the TCFD framework and the impact of climate-related risks and opportunities on the Company.

Task Force on Climate-Related Financial Disclosures (TCFD)

WIN has implemented GHG inventories in accordance with ISO14064-1:2006 since 2011, which are then verified by a third party verification company (In 2020, WIN's GHG inventories were verified by SGS Taiwan Ltd.) and obtained verification statements.

We implemented 7 energy conservation and carbon emissions reduction plans in 2020 and saved approximately 336,084 kWh of electricity and 286.06 tons of CO2e. The details were as follows:

Water Resource Management


Extreme climate in recent years has increased irregular rainfall and extreme droughts and challenged the stability of traditional water supply sources. Water used in all WIN"s plants is sourced from the catchment area of Shihmen Reservoir. The Reservoir has suffered from sludge issues in recent years which reduced its capacity and number of water supply days. To ensure stable mass production, WIN is bound to face the pressure of future water supply and must adopt good response measures for water management to protect operations and growth. WIN uses the water storage capacity information provided by the Shihmen Reservoir Administration to allocate water supply and optimize operations. In addition to maintaining stable water supply for all plants, we also seek to prevent the impact on water shortage areas during droughts. We also continue to increase the amount of recycled water in the fab and actively evaluated the feasibility of participating in the "water reclamation project" of the Water Resources Agency to reduce the possibility of water shortages in the fabs during the dry season.

Water Consumption

The main cause of water consumption was evaporation and spray from the cooling water tower. Other causes of water consumption include employee drinking water, cafeteria cooking water, product production, and evaporation from water tanks (water storage system).

Water Conservation Plan and Results

WIN has continuously implemented various water conservation plans since 2010 and gradually improved overall water recycling rate. The estimated recycled water volume in 2020 increased to 233,813 tons/year, up 34,568 tons/year compared to 2019. The 2020 recycling/reuse rate was 23.37% which was a 1.76% increase from 2019.

Waste Management


We take source management very seriously and are actively implementing source management, reducing process materials through management plans, and further reducing waste and increasing waste liquid recycling rate. We hope to gradually achieve the objective of zero environmental pollution.

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