BRASILIA, Sept. 30 (Xinhuanet) -- The first summit of the South American Community of Nations (CSN) concluded here Friday, with member countries calling for a concrete integration process in the region.

    The one-day summit closed with the signing of important documents promoting free trade and infrastructure construction tobenefit CSN members.

    In the Declaration of Brasilia, leaders of the bloc committed to advancing in a gradual way toward commercial liberalization.

    A free trade zone in the future will require convergence and complementation among CSN countries, said the declaration.

    CSN members agreed to deepen the convergence between the Common Market of the South (Mercosur) and the Andean Community (Ancom), two regional organizations in South America, it said.

    The declaration also includes the promotion of energy integration, environment protection, creation of financial mechanisms and reduction in developmental gaps.

    The CSN, formed on Dec. 8, 2004, in the Peruvian city of Cuzco,groups Argentina, Bolivia, Brazil, Colombia, Chile, Guyana, Ecuador, Peru, Paraguay, Surinam, Uruguay and Venezuela.

    Its establishment was considered an important step toward SouthAmerican integration. Enditem