The US will impose anti-dumping duties on steel wire from China and Mexico, the US trade authority said Tuesday (US time).

The US industry is "materially injured" by imports of pre-stressed concrete steel rail tie wire (PC tie wire) from China and Mexico that "the US Department of Commerce has determined are sold in the US at less than fair value," the US International Trade Commission said in a final ruling.

Under the Commerce Department's ruling, Chinese and Mexican producers and exporters that have sold PC tie wire in the US market will have to face anti-dumping duties ranging from 31.40 percent to 35.31 percent, and 9.99 percent respectively.

The US imported an estimated $31.1 million worth of PC tie wire from China last year, according to the Commerce Department.

PC tie wire is a high carbon steel wire suitable for use in the construction of railroad ties.

China has repeatedly urged Washington to abide by its commitment against protectionism.