As one of the five founding members of ASEAN, Singapore is a strong supporter of the ASEAN Free Trade Area (AFTA) and the ASEAN Investment Area (AIA) as its economy is closely linked to that of the region as a whole. Former prime minister Goh Chok Tong has proposed the formation of an ASEAN Economic Community (AEC), a step beyond the AFTA, bringing it closer to a common market. This was agreed to in 2007 for implementation by 2015. Other regional organisations are important to Singapore, and it is the host of the APEC Secretariat. Singapore maintains membership in other regional organisations, such as Asia–Europe Meeting, the Forum for East Asia-Latin American Cooperation, the Indian Ocean Rim Association, and the East Asia Summit. It is also a member of the Non-Aligned Movement, the United Nations and the Commonwealth. While Singapore is not a formal member of the G20, it has been invited to participate in G20 processes in most years since 2010. Singapore is also the location of the Pacific Economic Cooperation Council (PECC) Secretariat.