As a preliminary step to establishing an institutional multilateral co-operation system, ICLEI East Asia serves as the Secretariat of EACAC, providing a long-term cooperation platform for East Asian cities committed to tackling air pollution through city-to-city exchange and collaboration. The main activities of EACAC include: 1) (co)organizing forums, workshops and study trips for capacity building; 2) facilitating participants' engagement; 3) compiling case studies on East Asian cities’ air quality management; and 4) mobilizing resources for future development of the program and its member cities.

Since May 2020, the EAS and SMG has been preparing the institutionalisation of the EACAC initiative to properly support local government members and efficiently channel resources. The Secretariat of EACAC will be managed by EAS with the guidance of the EAS’ Director Mr. Shu Zhu.