China has defended its decision to increase tariffs on some U.S. car imports.

Chinese Commerce Minister Chen Deming says the duties on imported automobiles are normal trade remedies and not a form of protectionism. He says if anyone begs to differ the best solution is to ask WTO experts to rule on it.

Chen spoke to reporters Thursday on the sidelines of the WTO ministerial conference in Geneva.

The new tariffs will be placed on imported automobiles with engine capacities of 2.5 liters or more and will effect vehicles produced by several companies including General Motors, Chrysler and BMW's U.S. manufacturer.