The concept of a non-market economy country in the United States does not actually exist in the rules of the World Trade Organization (WTO). Gao Feng, spokesman of the Ministry of Commerce, also clarified again. He said that the concept of a so-called non-market economy country does not exist in the multilateral rules of the WTO, and the practice of using substitute country prices to calculate dumping margins in anti-dumping against China must be terminated.