Dongguan has become an up and coming international processing and manufacturing base, which mainly include the IT, telecommunication equipment, machinery, automobiles and parts, hardware, clothes and textiles, furnishings, building materials, and paper. The city has a robust industrial chain to support nearly 30,000 companies. For example, in the IT industry, Dongguan has a world-famous IT manufacturing base with more than 3,700 enterprises covering 95% of computer parts. Companies in Dongguan can purchase raw materials and computer parts nearby to reduce costs and supply products to the local enterprises close to Dongguan and the Pearl River Delta region. In addition, the flexible method of interplant transfer can be used to export products within a one-hour drive. Since materials and transportation are all conveniently located, management and transportation costs are greatly reduced. More than 70% of foreign enterprises in Dongguan use interplant transfer, with the total value exceeding 26 billion USD per year.