Sustainability Policy
Sustainability Policy
Replacing waste and landfills with recycling, we give steel by-products a second life and cultivate new circular value for the earth.
Environmental Protection
.Outstanding Results in Energy Saving and Carbon Reduction
Since the base year of 2012, Taiwan Steel Union Co., Ltd. (TSU) has reduced carbon emissions by 32,000 metric tons, equivalent to the annual carbon absorption capacity of 83 Daan Forest Parks.

| Item | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|
| Total GHG Emissions (ton CO2e/year) |
98,762 | 81,440 | 86,251 | 82,523 | 88,125 |
| Total Waste Handled (ton/year) |
160,025 | 149,283 | 164,329 | 143,541 | 140,680 |
| Emission Intensity (CO2e/ton) |
0.639 | 0.550 | 0.525 | 0.575 | 0.626 |
|
YoY Change in GHG Emissions (%) |
— | -18% | +6% | -4% | +7% |
Sustainability Philosophy
Taiwan Steel Union upholds the corporate philosophy of ‘resource circulation and zero waste,’ recycling the hazardous industrial waste EAF dust generated by the electric arc furnace steelmaking industry into crude zinc oxide for reuse, co-creating new value for the industry chain and the environment. We believe that sustainability is not only an environmental responsibility, but also the power of continuous corporate innovation.

Future Outlook
Taiwan Steel Union will continue to promote the circular economy with innovative technologies. We are not only committed to environmental sustainability, but also provide highly cost-effective disposal channels, co-creating a win-win for the green economy.

