This interesting research released on December 14 by the USDA shows how China’s corn imports are minimal, even though it is using a growing proportion of its corn to produce starch, ethanol, and other industrial products. The corn-processing industry’s growth was encouraged by Chinese government policy, but the industry now has excess capacity. Many of the corn-based industrial products are exported. China’s price support for corn during 2008/09 increased raw material costs for the industry and slowed its growth.
See http://www.ers.usda.gov/Publications/FDS/2009/12Dec/FDS09K01/
Source USDA