China's National Development and Reform Commission, the country's top economic planner, has released the 2013 import quotas for grains.

China's wheat import quota stands at 9.6 million metric tons, 90 percent of which will be allocated to State-owned trading companies.

The total import volume and the ratio have remained unchanged since 2004. Trading companies will face import tariffs of 1 percent for volume within the quota, and 65 percent of import tariffs for import volume exceeding the quota.

The quota for rice imports stands at 5.32 million tons, half of which is controlled by State-owned companies.

The quota for corn stands at 7.2 million tons, with State-owned companies controlling 60 percent of the total, unchanged from a year earlier.

zhousiyu@chinadaily.com.cn