Methane

A National Oceanic and Atmospheric Administration report showed the largest atmospheric methane increase on record. Methane's warming potential (GWP) is 27.9 times that of carbon dioxide, and current methane concentrations now exceed the targets of the Global Methane Pledge signed by over 150 countries, with landfills recognized as a major methane source. According to UN estimates, about 45% of the 8.2 billion population reside in urban areas by 2025, and this concentration intensifies household waste and landfill methane issues. Developed regions such as Europe, the United States, and Japan have widely adopted cement kiln co-processing since the 1970s. 

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.