China unfairly limits export of raw materials GENEVA (AP) - The World Trade Organization has affirmed that China unfairly limited exports of nine raw materials to protect domestic manufacturers. A WTO appeals body largely sided with the United States, European Union and Mexico in a dispute over Chinese materials used widely in the steel, aluminum and chemical industries. They had complained China drives up prices for raw materials by setting export duties and quotas on them. The ruling Monday affects exports of certain forms of bauxite, coke, fluorspar, magnesium, manganese, silicon carbide, silicon metal, yellow phosphorous and zinc. It says China must now "bring its export duty and export quota measures into conformity with its WTO obligations." China had argued its export limits protect the environment.