美国和欧盟星期二向世贸组织提出申诉，指责中国限制钢铁和化工业使用的关键原材料的出口。
美国贸易代表柯克说，中国是这些原材料的主要生产国。他说，通过限制这些材料的出口，中国向其国内的公司提供了不公平的优势。
这是自从奥巴马入主白宫以来美国对中国提出的第一个贸易申诉。
柯克说，美国现在比任何时候都更须要反对这种对国内的优惠主义。
美国和欧盟说，他们仍希望通过对话解决争端。
The United States and the European Union filed complaints with the World Trade Organization Tuesday, accusing China of restricting exports of key raw materials used in the steel and chemical industries.
U.S. Trade Representative Ron Kirk says China is a leading producer of these raw materials (including bauxite, coke, fluorspar, magnesium, manganese, silicon metal, silicon carbide, yellow phosphorus, and zinc). He says by limiting access to these materials, China is giving its own businesses an unfair advantage.
This is the first trade complaint that the United States has lodged against China since U.S. President Barack Obama took office.
Kirk says the U.S. must fight this type of domestic favoritism “now, more than ever.”
The U.S. and EU say still they hope to resolve the dispute through dialogue.