On Oct. 22, 2022, China’s Ministry of Ecology and Environment and State Administration for Market Regulation issued four national standards for air pollutant emission control: the Emission Standard of Air Pollutants for Printing Industry (GB 41616-2022), Emission Standard of Air Pollutants for Glass Industry (GB 26453-2022), Emission Standard of Air Pollutants for Mineral Wool Industry (GB 41617-2022) and Emission Standard of Air Pollutants for Lime and Calcium Carbide Industry (GB 41618-2022). These national standards, which will come into effect Jan. 1, 2023, set out requirements for air pollution control, air pollution monitoring and so forth.