The world is undergoing profound and complex changes. The global economy may experience uncertainty and instability for a long time to come. China and the Association of Southeast Asian Nations (ASEAN) pledged to further strengthen their strategic mutual trust and pragmatic cooperation in all areas at a summit commemorating the 20th anniversary of their dialogue relations.Chinese Premier Wen Jiabao made a speech: "The world is undergoing profound and complex changes. The global economy may experience uncertainty and instability for a long time to come. China and ASEAN should be both confident and sober-minded, keep our destiny firmly in our own hands and advance in the direction we have set to pursue our goal."