200 mm-wafer factory：

• The hazardous waste generated of unit foundry wafer products is 0.0056 Kg/cm² in 2020, up 21.66% compare with 2019.
• The overall waste recycling rate is 92.53% in 2020, up 3.64% compare with 2019.
• Total resource waste fee is NT$1,327,651 in 2020, down 1.10% compare with 2019.
• The total waste generated is 4,784 Ton (excluding resource recovery) in 2020, up 26.14% compare with 2019.

300 mm-wafer factory：

• The hazardous waste generated of unit foundry wafer products is 0.0049 Kg/cm² in 2020, down 1.22% compare with 2019.
• The overall waste recycling rate is 88.07% in 2020, down 0.55% compare with 2019.
• Total resource waste fee is NT$10,494,668 in 2020, down 22.85% compare with 2019.
• The total waste generated is 12,397 Ton (excluding resource recovery) in 2020, up 10.68% compare with 2019.