SKARDU - Chairman Pakistan Gemstone and Minerals Association (PGMA) Gilgit Baltistan Muhammad Ali said here yesterday that if the government will cooperate properly with the stockholders and businessmen of Gemstones then a handsome revenue could be generated. He while talking to APP said that most of the countries like Bangkok, Malaysia, Singapore did not impose any tax on the trade of gemstones and they are providing facilities of training of the traders also free of cost.