China has never carried out extra inspection and quarantine practices on imported soybeans from the United States, said the General Administration of Customs on Friday.

GAC spokesman Huang Songping said the customs authority has supervised all import goods in accordance with the law.

As China and the U.S. are having trade frictions and this may affect long-term bilateral trade, he said it is normal for foreign companies to export goods to China third parties.

They have the right to choose the routes, and it is purely commercial behavior.