The traditional flow of goods from primary production through to manufacturing and consumption has expanded across international borders conterminously with globalization. Vertical specialization (VS) in processing and manufacturing in China has driven export growth. In particular, intra-industry and intra-product trade between China, the US and East Asia has increased China's trade surplus over the long term. Vertical Specialization and Trade Surplus in China aims to measure the level of VS in the Chinese manufacturing industry to provide a more accurate representation of China's trade surplu