Jamaica’s Anti-Dumping and Subsidies Commission (ADSC) imposed an antidumping duty of 89.8% on cement imports from China, the Jamaica Gleaner reported.  The duties will take effect July 30 to run for five years.  The decision came after the commission decided that cement imported from China has been dumped on the local market. The ADSC imposed earlier this year a preliminary 96.3% tariff on the importation of portland grey cement from China, effective March 29, the paper said.  The ADSC names local supplier Mainland International as the importer, China’s Shandong Metal and Minerals Corporation as the exporter and Longkou Falin Cement Company Ltd as the producer.