China has imposed anti-dumping duties on imports of a version of the synthetic material nylon from the United States.
The Commerce Ministry announced Thursday it would impose tariffs up to 96.5 percent on imports of "nylon6" from the U.S., as well Europe, Russia and Taiwan. The duties will last five years.
Beijing's actions come a day after the U.S. Commerce Department launched an investigation into allegations that Chinese aluminum products get unfair government subsidies and are being sold at below-market prices.
The investigation was sought by U.S. aluminum extrusion manufacturers, which produce molded aluminum to be used in doors, window frames, roofing, and other construction materials.
The investigation could result in anti-dumping duties imposed on Chinese aluminum.
But the Commerce Department did not say if it would include China's currency policy in the investigation. U.S. aluminum products makers had alleged that China's currency valuation helps exporters and constitutes an illegal trade subsidy.
China's currency exchange policy has long drawn criticism from some in the United States who say the yuan is undervalued. They say that makes Chinese exports unfairly cheap in other economies.
Some information for this report was provided by AP, AFP and Reuters.