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GHG Emissions and Air Pollution Reduction

GHG inventory

In recent years, climate issues have become a prominent international concern. From governments to private enterprises, all sectors are striving for the goal of net zero by 2050. Global consumer electronics brands have gradually proposed to achieve 100% carbon neutral supply chain by 2030. Although we are not a direct supplier to the brand, we still actively map out our carbon reduction goals so as to jointly contribute in cooling down the planet. Since 2022, we have implemented the ISO 14064- 1:2018 GHG inventory system and obtained a third-party verification statement. In 2023, we further enhanced our carbon emission management by introducing an information-based carbon emission management platform, thereby strengthening our monitoring and management effectiveness of carbon emissions.

Quantitative Indicators Unit 2021 2022 2023
Scope 1 MT CO2e 10,077.93 10,936.00 7,482.24
Scope 2 MT CO2e 20,340.13 18,215.25 18,498.35
Scope 3 MT CO2e 3,474.88 2,419.29 2,204.84
Scope 4 MT CO2e 77,641.90 49,082.21 45,467.45
Scope 1~4 MT CO2e 111,534.829 80,652.748 73,652.88
Revenue In thousands of NT$ 7,671,215 7,287,918 6,837,677

Note:

  1. Scope 1: Direct GHG emissions; Scope 2: GHG emissions from energy use; Scope 3: GHG emissions from transportation; Scope 4: GHG emissions from the use of product.
  2. Emission intensity = (Scope 1 + Scope 2) / Taiflex's parent company only revenue for the year (in thousands of NT$).
  3. Electricity emission factor refers to the electricity GHG emission factor released by the Energy Administration, Ministry of Economic Affairs: 0.509 kg CO2e in 2021, 0.495 kg CO2e in 2022, and 0.494 kg CO2e in 2023.
  4. The parameters adopted are based on the Greenhouse Gas Emission Factor Table (6.0.4) published by the Environmental Protection Administration, and the conversion of CO2e into the Global warming potential (GWP) adopt the GWP values in the IPCC's Sixth Assessment Report, where CO2 =1, CH4 =27.9, and N2O=273.
  5. We have restated the GHG emission intensity for 2021 as the number in the previous report was incorrect.
  6. The 2022 GHG emission data were based on inventory conducted pursuant to ISO 14064-1:2018 with a third-party verification. Numbers are restated as data are updated based on the inventory results this year.
  7. The 2023 data are based on the voluntary inventory conducted in accordance with ISO 14064-1:2018 with the verification by an independent third-party scheduled for late 2024. Results will be disclosed in the next report.

Air pollution monitoring and prevention

Our air pollution control facilities adopt regulatory-compliant technologies available and comply with the “Air Pollution Control Act” as well as the “Air Pollutant Emission Standards of Stationary Pollution Sources.” The air pollution control facilities of each factory operate 24 hours a day and 350 days a year. Furthermore, we would engage a third-party certification body to conduct tests on the emission concentration of various air pollutants annually. The results have shown that our emissions have complied with relevant standards and stayed far below the threshold. Please refer to Appendix I ESG Information - Environmental Data of this report for statistics from the air pollution tests. As natural gas combustion generates NOx emissions, and the Company mainly uses natural gas as fuel for exhaust gas treatment equipment, apart from reducing the total amount of exhaust gases (organic solvents) to be treated through raw material recovery, we continually optimize related equipment. Following the introduction of zeolite rotor concentrator at Taiflex 3 in 2022, there was a 30% reduction in natural gas consumption by the RTO compared to the base year (2021). Additionally, the replacement of ceramic media within the RRTO at Taiflex 2 in 2023 lowered natural gas consumption by approximately 25% compared to the base year, and further minimized NOx emissions. Besides, some of refrigeration equipment within the factory still use R22 refrigerant, and we continue to use GHG emission rate to calculate its emission volume. We will opt for models using environmentally friendly refrigerant in the future and gradually replace these older models. The amount of R22 refrigerant emissions in 2023 were 0.0046 MT.

Test Items 2021 2022 2023
Emission(kg/hr) Emission Standard (ppm) Annual Average(ppm) Emission(kg/hr) Emission Standard (ppm) Annual Average(ppm) Emission(kg/hr) Emission Standard (ppm) Annual Average(ppm)
VOCs 3.35 None 220 2.96 None 257 1.75 None 146
TSP 0.01 100.00 0.40 - 100.00 - 0.02 100.00 1.00
SOx - - - - - - - - -
NOx 0.44 150.00 10.00 - 150.00 - 0.83 150.00 24.00

Notes:

  1. There are currently no emission standards for VOCs. Natural gas combustion does not produce SOx; therefore, testing is not required.
  2. Data in the table are historical testing results of Taiflex 2. Units for emission standards and annual testing: mg/Nm3 for TSP; ppm for NOx and VOCs