China has decided to adjust anti-dumping duties on imports of optical fiber preforms originating in Japan after a review investigation detected cases of dumping, said the Ministry of Commerce (MOFCOM) on Friday.

The adjusted duties will take effect on Saturday. Imports from Fujikura Ltd. and Shin-Etsu Chemical Co., Ltd. will be subjected to rates of 14.4 and 17 percent, respectively, the ministry said in a statement.

Imports from all other Japanese firms, including Sumitomo Electric Industries, Ltd. and Furukawa Electric Co., Ltd., will be subjected to a rate of 31.2 percent.

The ministry decided to implement final anti-dumping measures on imports of optical fiber preforms originating in Japan and the United States for two years from August 19, 2015. After an expiry review investigation, the ministry decided to continue to impose anti-dumping duties on imports of optical fiber preforms originating in the two countries for five years from July 11, 2018.

(With input from Xinhua)

(Cover: Ministry of Commerce. /CFP)