South Korea is considering whether to file an official complaint with the World Trade Organization(WTO) over the U.S. levying antidumping duties on South Korean products.

According to a government source in Seoul on Wednesday, a legal review is under way at the Ministry of Trade, Industry and Energy to see if it is possible to lodge a complaint with the WTO.

The government believes the U.S. has revised related law and arbitrarily imposed antidumping duties on South Korean steel products since May last year.

The U.S. placed a preliminary six-point-82 percent antidumping rate on POSCO's steel plate products last November, and in August, the Korean steelmaker was slapped with a three-point-89 percent antidumping duty and a 57-point-04 percent countervailing duty.