BEIJING -- China's Ministry of Commerce will impose anti-dumping duties ranging between 6.6 percent and 37.7 percent on imported toluene diisocyanate (TDI) from the European Union, starting from Wednesday.

The duties will last for five years, according to a ministry statement released Tuesday.

The final ruling came after the ministry found that the domestic industry has been "substantially" harmed by the EU's dumping of TDI in its investigations, which begun last March.

TDI, a main raw material of polyurethane products, is widely used in the industries of rubber surface coating, textile processing, petroleum, mining, automobiles and railway transport.