China has started reviewing the anti-dumping measures it imposed in 2005 on hydrazine hydrate imports from Japan, Korea, the United States and France, the Ministry of Commerce (MOC) said Thursday.

The MOC will examine the possibility of continuing the measures if the dumping has not ended, the MOC said in a statement on its website.

China's hydrazine hydrate producers filed an application for a reexamination of the anti-dumping measures on April 16, the statement said, adding that the review is expected to be completed within 12 months.

In June 2005, the MOC imposed anti-dumping duties of 28 percent to 184 percent on hydrazine hydrate imports from Japan, Korea, the United States and France for five years.

Hydrazine hydrate is a raw chemical widely used in the production of pesticides, medicines, intermediates, dyestuffs, rocket fuel and explosives.