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Methane

A 2021 National Oceanic and Atmospheric Administration report showed the largest atmospheric methane increase in 40 years. Methane's warming potential is 27.9 times that of carbon dioxide. Over 150 countries have signed the Global Methane Pledge, acknowledging landfills as a major methane source. 

In 2023, TCC launched TCC DAKA RRRC, Taiwan's first facility combining a cement kiln and gasifier to process local waste. It helps Hualien County process up to 200 metric tons of household waste daily, with the generated heat replacing some kiln fuel. The residual ash from gasification is also reused as a raw material in cement. TCC's cement plants in Mainland China collectively process over 600 metric tons of waste daily. TCC also uses its core cement expertise to provide waste treatment services that help local governments address methane pollution from landfills. To strengthen its material supply chain and cost control, TCC established a dedicated environmental technology business in Mainland China to secure material sources.

Amount of Co-processed Domestic Waste(metric ton)Avoided Methane Emissions(metric ton)
TCC DAKA RRRC41,420.772,071.04
Shaoguan Plant, Guangdong6,771.35338.57
Anshun Plant, Guizhou62,788.83,139.44
Jingzhou Plant, Hunan41,828.12,091.41
Total152,809.027,640.46

TAIWAN｜TCC DAKA Resource Recycling Center

  • TCC DAKA Renewable Resource Recycling Center (RRRC) is officially launched in December, 2023
  • Assist the local government in solving the methane pollution problem caused by garbage accumulation
  • In 2024, RRRC assisted in handling 41,420.77 tons of household waste and piled garbage in Hualien, which would result in 2,071.04 tons of methane emissions if treated by landfilling

MAINLAND CHINA｜The Yingde Plant in Guangdong

  • Food waste disposal in landfills is also one of the major sources of methane
  • The Yingde plant in Guangdong has established a food waste treatment center to reduce methane emissions
  • The annual processing volume of food waste is approx. 104.4 tons, which would result in 5.22 tons of methane emissions if treated by landfilling

Note:

  1. The calculation of methane emissions from solid waste landfilling is based on the formula provided in the 2024 Republic of China National Greenhouse Gas Inventory Report, assuming the landfilling method is a properly managed landfill