We use the natural gas-fired boilers for our manufacturing operation; therefore, no sulfur oxide (SOx) emissions. The particulate matter, PM, created from the production processes were collected and filtered by the cyclone separator before the discharge, and regular emission tests are carried out and monitored.
In 2024,
- We emitted 19.34 tons of particulate matter (PM), marking a 2.62% reduction from the 19.86 tons emitted in 2023.
- Nitrogen oxide (NOx) emissions totaled 3.051 tons in 2024, showing an 12.5% increase from 2.712 tons in 2023.
- With 0 sulfur oxide (SOx) emissions.
Wastewater Preventive Measures
We have established strict operational standards for wastewater treatment equipment and ensure regular maintenance. These standards are also promptly updated in accordance with regulatory changes.
Each plant has each own treatment procedures:
- Shalu Plant: Wastewater generated from our processes undergoes treatment at the wastewater treatment facility before being discharged. We also engage a third party accredited agency to regularly inspect the water quality to ensure compliance with discharge standards.
- Other plants and Charming Food: Wastewater is treated according to Industrial Park wastewater processing standards and relevant discharge regulations before being discharged into the Industrial Park wastewater treatment system.
Performance on water recycle and reuse:
- Shalu Plant: In 2024, we recycled 12,739 tons of steam condensate and 7,845 tons of process cooling water.
- Charming Food: Water usage from the municipal supply totaled 290,715 tons in 2024, with 37,682 tons of wastewater recycled, achieving a recycling rate of 13.87%. This compares to 294,682 tons of municipal water usage and 32,447 tons of wastewater recycled in 2023, showing a slight increase in recycling rate by 16.1%. The increase is mainly due to operation and regular maintenance of Membrane BioReactor (MBR).
Read More| Wastewater Discharge Management | |||||
| Item | National Standard | Year | Jan~ Jun |
Jul~ Dec |
Average |
| Chemical Oxygen Demand (COD) |
<100mg/L | 2022 | 7.40 | 19.90 | 13.65 |
| 2023 | 20.00 | 45.60 | 32.80 | ||
| 2024 | 38.00 | 10.00 | 24.00 | ||
| Biochemical Oxygen Demand (BOD) |
<30mg/L | 2022 | 0.80 | 1.90 | 1.35 |
| 2023 | 8.80 | 7.40 | 8.10 | ||
| 2024 | 8.80 | 0.40 | 4.60 | ||
| Particulate Matter (PM) |
<30mg/L | 2022 | 1.40 | 1.80 | 1.60 |
| 2023 | 6.90 | 9.30 | 8.10 | ||
| 2024 | 16.80 | 5.10 | 10.95 | ||
Waste Management
Waste Management
We adhere to the specifications of the 'Solid Waste Management Plan' to ensure proper management of all industrial waste generated across our plants. Waste is initially sorted and classified according to regulatory requirements, then entrusted to qualified waste management companies for transportation and reporting. We also conduct periodic tracking to monitor the final disposal of waste.
2024 Operational Waste & Recycle Chart Unit: tons
Note: The food waste and bleaching clay from Taichung Harbor plant were transported to Lukang plant
to process into fertilizers, to extend the useful life of resources
At the end of 2024:
The hazardous substances generated from the chemistry experiments
Shalu plant disposed
The waste was properly processed by National Cheng Kung University Environment Research Management Recycle Center.
We adhere to the specifications of the 'Solid Waste Management Plan' to ensure proper management of all industrial waste generated across our plants. Waste is initially sorted and classified according to regulatory requirements, then entrusted to qualified waste management companies for transportation and reporting. We also conduct periodic tracking to monitor the final disposal of waste.
2024 Operational Waste & Recycle Chart Unit: tons
| 2024 | Household Garbage | Operational Waste | Recyclable Resource | ||||||||
| Plant-based Residue | Sludge | Food Waste | Bleaching Clay | Recycled Paper | Recycled Plastic Barrel | Recycled Plastic | Recycled Metal | Recycled Wood | Recycled Glass | ||
| Shalu Plant | 39.00 | - | 1.38 | - | 41.36 | 29.22 | 25.72 | 54.28 | - | - | 79.32 |
| Taichung Harbor Plant | 19.28 | 9.60 | - | 59.63 | 57.13 | 0.57 | 35.20 | 17.04 | 21.24 | 3.24 | - |
| Lukang Plant | 18.82 | - | - | - | - | - | 10.14 | 0.26 | - | - | - |
| Kaohsiung Plant | 57.74 | - | - | - | - | 1.22 | - | 27.14 | - | - | - |
| Total | 134.84 | 9.60 | 1.38 | 59.63 | 98.49 | 31.01 | 71.06 | 98.72 | 21.24 | 3.24 | 79.32 |
to process into fertilizers, to extend the useful life of resources
At the end of 2024:
The hazardous substances generated from the chemistry experiments
- 0.71 kg of potassium chromate, with 0.02 kg annual removal.
- 10.76 kg of acetonitrile
- 0.271 kg of boron trifluoride
- 1.195 kg of sodium chloride in stock, with 0.01 kg annual removal.
Shalu plant disposed
- 0.01 kilograms of sodium cyanide
- 0.02 kilograms of potassium chromate
The waste was properly processed by National Cheng Kung University Environment Research Management Recycle Center.
