On September 8, 2023, HTAPC, in collaboration with UNESCAP, UNEP, Asia Pacific Clean Air Partnership (APCAP), the Ministry of Environment of the Republic of Korea, the Embassy of the Republic of Korea in Thailand, the German Institute for International Environmental Cooperation (GIZ), and the Climate and Clean Air Coalition (CCAC), launched a hybrid conference on the theme “Together for Clean Air: Air Pollution and Climate Solutions in Southeast Asia.”