China first proposed the idea of a free trade area in November 2000. The Heads of State and Government of ASEAN and China therefore decided to examine economic integration measures in the region[1][2] The following year, they advocated in Brunei the creation of an ASEAN-China Free Trade Area. [3] With regard to trade in other types of parts and components, these tariff preferences also eliminate various duty drawback regimes such as customs warehouses or the establishment of multinationals in duty-free export processing zones. Even if this were not the case, it is very difficult to design ROOs for supply chain trade – by nature, it involves limited added value or transformation. ASEAN members have a total population of over 650 million. Indonesia accounts for more than 40 per cent of the region`s population and the population has been the most opposed to the agreement. [17] [13] At the Sixth China-ASEAN Summit in November 2002, the Heads of State and Government of China and ASEAN (AMS) signed the Framework Agreement on Comprehensive Economic Cooperation between China and ASEAN at the Sixth China-ASEAN Summit. In November 2004, Chinese Premier Wen Jiabao and AMS leaders witnessed the signing of the Agreement on Trade in Goods of the Sino-ASEAN Free Trade Agreement, which entered into force in July 2005. In January 2007, the two sides signed the Agreement on Trade in Services, which entered into force in July 2007. In August 2009, both sides signed the investment agreement.