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Information Disclosure

Environmental Protection

To comply with regulatory requirements to carry out the recycling of resources by the carbonization stipulated by law, our operations must consider the load on the environment. In addition to the measurement prescribed biannually, the analyzer installed in the factory performs real-time measurement of hazardous substances, to monitor and analyze the generation of air pollutants and environmental hazards.

① Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 18/4/2025 18/5/2025 18/6/2025 14/7/2025 12/8/2025 9/9/2025
19/10/2025 18/11/2025 16/12/2025      
Exhaust gas treatment equipment
(Bag filter)
continuous emissions

② Exhaust gas measurement results

②-1: Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2025 848 188 27.0
May 2025 840 185 26.8
June 2025 861 194 27.7
July 2025 865 195 27.8
August 2025 863 194 27.7
September 2025 860 193 27.6
October 2025 852 190 27.2
November 2025 842 186 26.9
December 2025 845 187 27.0

②-2: Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2025 bag filter
Exit
12/6/2025 9/7/2025 0.034 <0.01 <1 <4 15
Past Achievements
Implementation status of soot and dust removal (April 2024-March 2025)

① Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 2/5/2024 1/6/2024 5/7/2024 29/7/2024 31/8/2024 28/9/2024
18/10/2024 7/11/2024 11/12/2024 4/1/2025 1/2/2025 14/3/2025
Exhaust gas treatment equipment
(Bag filter)
continuous emissions
Exhaust gas measurement results (April 2024-March 2025)

② Exhaust gas measurement results

②-1: Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2024 850 190 27.3
May 2024 855 191 27.4
June 2024 851 190 27.4
July 2024 848 189 27.2
August 2024 846 187 27.0
September 2024 889 197 28.0
October 2024 858 192 27.5
November 2024 849 189 27.3
December 2024 844 186 26.9
January 2025 853 191 27.4
February 2025 850 189 27.3
March 2025 860 193 27.6

②-2: Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2024 bag filter
Exit
3/4/2024 17/4/2024 0.0053 <0.008 <1 <2 21
2024 bag filter
Exit
12/12/2024 22/1/2025 0.010 <0.009 <1 <2 22
Administrative measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(m3N/h)
Hydrogen chloride
(mg/m3N)
nitrogen oxides
(ppm)
2024 bag filter
Exit
26/7/2024 25/3/2025 0.052 <0.001 <0.0060 <1 15
Implementation status of soot and dust removal (April 2023-March 2024)

① Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 30/4/2023 28/5/2023 25/6/2023 23/7/2023 19/8/2023 15/9/2023
12/10/2023 9/11/2023 7/12/2023 28/12/2023 1/2/2024 23/3/2024
Exhaust gas treatment equipment
(Bag filter)
continuous emissions
Exhaust gas measurement results (April 2023-March 2024)

② Exhaust gas measurement results

②-1: Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2023 905 201 28.4
May 2023 908 202 28.5
June 2023 906 201 28.5
July 2023 899 199 28.2
August 2023 895 198 28.0
September 2023 901 200 28.3
October 2023 904 201 28.4
November 2023 906 202 28.5
December 2023 887 196 27.9
January 2024 880 194 27.7
February 2024 - - -
March 2024 851 190 27.4

②-2: Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2023 bag filter
Exit
30/5/2023 22/6/2023 0.0010 <0.02 <1 <5 4.3
2023 bag filter
Exit
24/11/2023 27/12/2023 0.0060 0.086 <1 <5 3.4
Administrative measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(m3N/h)
Hydrogen chloride
(mg/m3N)
nitrogen oxides
(ppm)
2023 bag filter
Exit
26/7/2023 19/4/2024 0.026 0.074 - <2 <14
Implementation status of soot and dust removal (April 2022-March 2023)

① Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 24/4/2022 24/5/2022 25/6/2022 24/7/2022 19/8/2022 17/9/2022
11/10/2022 5/11/2022 23/12/2022 20/1/2023 5/3/2023  
Exhaust gas treatment equipment
(Bag filter)
continuous emissions
Exhaust gas measurement results (April 2022-March 2023)

② Exhaust gas measurement results

②-1: Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2022 888 195 27.7
May 2022 865 186 26.8
June 2022 891 196 27.8
July 2022 894 198 28.1
August 2022 897 199 28.2
September 2022 881 191 27.4
October 2022 885 192 27.5
November 2022 873 188 26.9
December 2022 870 187 26.8
January 2023 886 193 27.6
February 2023 890 195 27.9
March 2023 900 200 28.3

②-2: Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2022 bag filter
Exit
28/6/2022 3/8/2022 0.032 0.011 26 <5 7
2022 bag filter
Exit
17/11/2022 13/12/2022 0.0058 <0.01 40 6 4.2
7/3/2023 14/3/2023       4  
Administrative measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(m3N/hr)
Hydrogen chloride
(mg/m3N)
nitrogen oxides
(ppm)
2022 bag filter
Exit
26/7/2022 25/4/2023 0.013 0.013 - 2 <9
Implementation status of soot and dust removal (April 2021-March 2022)

① Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 24/4/2021 30/5/2021 20/6/2021 17/7/2021 13/8/2021 10/9/2021
9/10/2021 7/11/2021 11/12/2021 31/1/2022 26/2/2022 26/3/2022
Exhaust gas treatment equipment
(Bag filter)
continuous emissions
Exhaust gas measurement results (April 2021-March 2022)

② Exhaust gas measurement results

②-1: Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2021 886 193 27.6
May 2021 880 191 27.3
June 2021 870 188 27.0
July 2021 889 195 27.8
August 2021 890 196 27.9
September 2021 885 192 27.5
October 2021 892 197 28.0
November 2021 874 189 27.1
December 2021 883 193 27.6
January 2022 887 194 27.7
February 2022 893 198 28.1
March 2022 868 187 26.9

②-2: Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2021 bag filter
Exit
23/6/2021 14/7/2021 0.0012 0.014 <1 <4 10
2021 bag filter
Exit
23/12/2021 20/1/2022 0.00018 0.011 13 <2 13
Administrative measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(m3N/hr)
Hydrogen chloride
(mg/m3N)
nitrogen oxides
(ppm)
2021 bag filter
Exit
30/7/2021 20/5/2022 0.0043 0.007 - <1 9
Implementation status of soot and dust removal (April 2020-March 2021)

①Implementation status of soot and dust removal

Regulation items Date of removal of soot and dust
Cooling equipment 20/4/2020 17/5/2020 21/6/2020 17/7/2020 15/8/2020 11/9/2020
9/10/2020 7/11/2020 5/12/2020 3/1/2021 31/1/2021 27/2/2021
28/3/2021          
Exhaust gas treatment equipment
(Bag filter)
continuous emissions
Exhaust gas measurement results (April 2020-March 2021)

②Exhaust gas measurement results

②-1:Temperature management [matters related to measurement (the combustion chamber temperature, dust collector inlet temperature, exhaust gas carbon monoxide concentration)]

Month Secondary combustion chamber (Temperature:℃) Dust collector inlet (Temperature:℃) Chimney (CO concentration:ppm)
April 2020 870 186 27.1
May 2020 892 200 28.0
June 2020 889 195 27.8
July 2020 891 198 27.9
August 2020 893 201 28.1
September 2020 890 197 27.8
October 2020 892 199 28.0
November 2020 894 202 28.2
December 2020 890 198 27.8
January 2021 863 183 26.8
February 2021 830 175 25.7
March 2021 878 188 27.4

②-2:Measurement results [matters related to measurement (dioxin, sulfur oxides, soot and dust, hydrogen chloride and nitrogen oxides)]

In-house measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(ppm)
Hydrogen chloride
(ppm)
nitrogen oxides
(ppm)
2020 bag filter
Exit
3/7/2020 30/7/2020 0.0079 0.017 5 <4 15
2020 bag filter
Exit
17/12/2020 12/1/2021 0.025 0.015 15 <2 11
Administrative measurement
Year Sample position Collection date Obtained the day the measurement results Results
Dioxin
(Ng-TEQ/m3N)
Soot and dust
(g/m3N)
Sulfur oxides
(m3N/hr)
Hydrogen chloride
(mg/m3N)
nitrogen oxides
(ppm)
2020 bag filter
Exit
31/7/2020 17/6/2021 0.00017 0.011 - <1 8