Why is ASEAN region worth the investors' attention for development zones?

ASEAN region is a free trade area, which consists of ten countries. They are aiming to reduce tariff between themselves to zero by 2015. Given this favorable incentive, it is tipped to be development zones within each signatory will spring up across the region in the wake of their entrance of free trade agreements with China and India, which have effect on 7,000 and 4,500 products respectively. Thus, manufacturing costs and export costs will be vastly reduced with extremely low re-export costs to ASEAN countries or their neighbors, such as China and India.