Our Focuses｜Environmental Sustainability｜Energy and Carbon Emissions Management
Environmental Sustainability
Winbond has worked alongside countries and companies from around the world to implement green sustainability measures, proactively reducing the impact that our business operations have on the environment. Apart from having no major violations of environmental laws, Winbond has also committed innovative new technologies and significant resources into adopting measures for reducing energy consumption and carbon emissions, improving resource utilization rates, and improving waste and emissions management, taking concrete action to implement our sustainable development blueprint.
Annual energy savings achieved
3.5
%
The water recovery rate of the whole plant reached
81.9
%
Removal rate for VOCs in 2023 reached
99
%
Energy Management
Winbond adhered to the vision of "Being a hidden champion in providing sustainable semiconductors to enrich human life." fulfilling its responsibility for green manufacturing, reducing the environmental impact of corporate operations, enhancing product value while conserving energy and improving efficiency, and investing resources to support equipment energy optimization, aiming to fulfill social responsibility and achieve sustainable operations.
All Winbond manufacturing plants have passed ISO 50001 energy management systems certification, expanding the scope and efficiency of energy management.In 2024, electricity savings increased by approximately 94,650 GJ compared to 2023.
See Winbond Climate Change and Energy Management Policy、 Certification and Verification
Target Achievement Progress
Winbond the electricity reduction target is to reduce the electricity consumption per unit product by 1% YoY per year by 2030.
| Indicators and Targets | 2024 | YoY achievement status |
|---|---|---|
| Electricity Intensity (kWh/layer - wafer photomask) | 23.8 | -14.8% |
| Electricity Intensity (MJ/layer - wafer photomask) | 85.8 |
Energy use and energy intensity for each product unit
Note: The data scope is Winbond Taiwan
Energy use and energy intensity for each product unit
Winbond Group's 2024 target for energy consumption per unit revenue was set at 14.48 MWh/NT$ million, and the actual value achieved was 13.23 MWh/NT$ million, meeting the target requirement.
| Item | Unit | 2021 | 2022 | 2023 | 2024 | ||||
|---|---|---|---|---|---|---|---|---|---|
| Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | ||
| Purchased Electricity (Excluding Renewable Energy) | GJ | 1,988,490 | 266,926 | 2,479,988 | 260,259 | 2,592,983 | 258,670 | 2,527,712 | 678,216 |
| Renewable Energy (Electricity) | GJ | - | - | - | - | 7,571 | 447 | 158,266 | 3,675 |
| Natural Gas | GJ | 242,327 | 7,485 | 314,966 | 7,526 | 345,558 | 9,903 | 393,096 | 217,302 |
| Liquefied petroleum gas | GJ | - | - | - | - | - | - | - | 47,261 |
| Fuel oil (heavy oil) | GJ | - | - | - | - | - | - | - | 16,498 |
| Diesel Fuel | GJ | 1,934 | - | 10,023 | - | 10,899 | 148 | 4,776 | - |
| Automotive Gasoline/Diesel | GJ | 2,088 | 37 | 2,200 | 26 | 1,823 | 35 | 1,557 | 416 |
| Total Energy Consumption | GJ | 2,234,839 | 274,477 | 2,807,178 | 267,811 | 2,958,834 | 269,202 | 3,085,408 | 963,369 |
Note: The statistical range of data from 2021 to 2023 is Winbond (Taiwan) and Nuvoton (Taiwan), and 2024 is Winbond (Taiwan) and its subsidiaries with consolidated financial statements.
Investment into Renewable Energy
In response to the government's renewable energy policy, Huabang installed a 499kW rooftop renewable energy power generation equipment in 2019, and converted the power generation to self-use in 2024 to implement green manufacturing.
In 2024, Huabang signed a corporate power purchase and sales contract with Chenya Energy Co., Ltd. and Nengyuan Supermarket Co., Ltd., obtaining 27 MW of power generation from offshore solar photovoltaic projects and 9.24MW of power generation from onshore wind power projects.
In 2024, Huabang's board of directors approved the signing of a long-term renewable energy purchase and sales contract with "Xuxing Co., Ltd.", a renewable energy sales company under Sino-US Silicon Group. After the completion of the R 3-1 offshore wind farm, Xuxing will transfer offshore wind power and solar photovoltaics to Huabang. The two parties will work together to start a 30-year, long-term green power purchase and sales cooperation totaling approximately 4.8 billion kWh.
In 2024, Renewable energy usage to reach
Greenhouse gas management
Winbond actively cooperated with the government's corporate greenhouse gas inventory registration operations, implemented greenhouse gas management mechanisms within the fab, and conducted ISO 14064-1 greenhouse gas inventory using the operational control method. Winbond and its subsidiaries comprehensively promoted the inventory and verification of greenhouse gas emissions, set reduction targets, sought reduction opportunities, and proposed improvement plans.
Winbond set greenhouse gas emission reduction targets, aiming to reduce Scope 1 and Scope 2 emissions by 42% by 2030 (base year 2023). In 2024, Scope 1 and Scope 2 emissions were reduced by 1.1%. The greenhouse gas emission intensity indicator for 2024 was 12.7 kg CO2 equivalent, compared to 15.5 kg CO2 equivalent in 2023, representing a year-on-year reduction of approximately 18.1%. In the future, Winbond will continue to promote the reduction of process gases such as FCs (e.g., process improvements and installation of exhaust
treatment equipment), energy-saving measures (process optimization, efficiency improvement, and smart energysaving), and the use of renewable energy to continuously reduce carbon emissions.
In addition, product carbon footprint assessment under ISO 14067 was conducted for Wafer product manufacturing and certain IC products in 2024, gradually enhancing greenhouse gas reduction performance.
Target Achievement Progress
The greenhouse gas emission target is to reduce the greenhouse gas emission intensity per unit product by 5% YoY per year by 2030.
| 2024 | YoY achievement status | |
|---|---|---|
| Intensity of greenhouse gas emissions for each product unit (kilogram of carbon dioxide equivalent/Layer - wafer photomask) | 12.7 | -18.1% |
Note:
- Carbon reduction targets are split into those for Scope 1 and Scope 2.
- Tier 2c calculation methods have been used to calculate the direct emissions produced by the manufacturing process in the greenhouse gas inventory report.
- The scope of data statistics is Winbond Taiwan factory.
GHG Emissions of Winbond Group
| Item | Unit | 2021 | 2022 | 2023 | 2024 | ||||
|---|---|---|---|---|---|---|---|---|---|
| Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | Taiwan Region | Subsidiary | ||
| Scope 1 | tCO2e | 38,760 | 37,795 | 44,373 | 36,326 | 44,149 | 18,749 | 49,316 | 40,507 |
| Scope 2 (Location-based) | tCO2e | 277,284 | 37,740 | 353,523 | 35,786 | 357,576 | 35,567 | 369,316 | 85,390 |
| Scope 2 (Market-based) | tCO2e | 277,284 | 37,740 | 353,523 | 35,786 | 356,535 | 35,567 | 346,858 | 85,390 |
| Scope 3 | tCO2e | 451,771 | 92,268 | 443,204 | 90,433 | 454,221 | 98,972 | 405,474 | 571,768 |
- The statistical range of data is from 2021 to 2023 for all plants of Winbond (Taiwan) and Nuvoton (Taiwan), and from 2024 for all plants of Winbond (Taiwan) and consolidated financial subsidiaries. The annual greenhouse gas emissions ISO14064 are verified by a third party.
- Winbond Group's 2024 target for Direct Greenhouse Gas Emissions (Scope 1) per unit revenue was set at 1.23 tonCO2e/NT$ million, and the actual value achieved was 1.10 tonCO2e/NT$ million, meeting the target requirement.
- Winbond Group's 2024 target for indirect Greenhouse Gas Emissions (Scope 2) per unit revenue was set at 5.80 tonCO2e/NT$ million, and the actual value achieved was 5.57 tonCO2e/NT$ million, meeting the target requirement.
- Winbond Group's 2024 target for indirect Greenhouse Gas Emissions (Scope 3) per unit revenue was set at 12.34 tonCO2e/NT$ million, and the actual value achieved was 11.96 tonCO2e/NT$ million, meeting the target requirement.
- Winbond's goal is to use 50% renewable energy in Taiwan plants by 2030, reduce greenhouse gas scope 1 and scope 2 emissions by 42%, and achieve net zero emissions in Taiwan plants by 2050, to show its determination to work with the world to achieve net zero emissions.
- Winbond Group's 2024 target for Perfluorocarbons Emissions per unit revenue was set at 0.27 tonCO2e/NT$ million, and the actual value achieved was 0.25 tonCO2e/NT$ million, meeting the target requirement.