BEIJING, Jan. 13 (Xinhua) -- The 12th Association of Southeast Asian Nations (ASEAN) Summit opened in Cebu, central Philippines, on Saturday. The summit was originally scheduled for December but postponed by the host nation citing possible unfavorable weather conditions.

    The following are some basic facts about the 10-member regional organization.

    ASEAN groups Indonesia, Malaysia, the Philippines, Singapore, Thailand, Brunei, Vietnam, Laos, Myanmar and Cambodia.

    ASEAN was established on Aug. 8, 1967 in Bangkok, Thailand, by five countries: Indonesia, Malaysia, the Philippines, Singapore and Thailand.

    Brunei joined the group in January 1984, followed by Vietnam in1995, Laos and Myanmar in 1997 and Cambodia in 1999.

    The region has a combined population of about 537 million, and an area of around 4.5 million square km.

    The ASEAN Declaration states that the aims and purposes of the group are: (1) to accelerate economic growth, social progress and cultural development in the region and (2) to promote regional peace and stability through respecting justice and the rule of law to maintain friendly relations among countries in the region, and adherence to the principles of the United Nations Charter.

    The ASEAN Vision 2020, adopted by the ASEAN leaders during the group's 30th anniversary, agrees on a shared vision of ASEAN as a concert of Southeast Asian nations, outward looking, living in peace, stability and prosperity, bonded together in partnership in dynamic development and in a community of caring societies.

    In 2003, the ASEAN leaders resolved that an ASEAN Community shall be established comprising three pillars, ASEAN Security Community, ASEAN Economic Community and ASEAN Socio-Cultural Community.

    ASEAN's highest decision-making body is the ASEAN summit.

    The secretary-general of ASEAN is appointed on merit and accorded ministerial status. The secretary-general, who has a five-year term, is mandated to initiate, advise, coordinate and implement ASEAN activities.

    ASEAN's economic cooperation covers areas of trade, investment, industry, services, finance, agriculture, forestry, energy, transportation and communications, intellectual property, small and medium-sized enterprises and tourism.