June, 2004 --- The first one who starts to manufacture 2-Ethylsulfonyl imidazo [1,2-a] pyridine-3-sulfonamide, which is the main intermediate of Sulfosulfuron. Now annual quantity is 30 MT after 5 years’ continuous production.
April, 2005 --- Dagro Chemical (Changzhou) Co., Ltd is founded in Hi-tech Zone, Changzhou. Meanwhile, chemical plant is set up in Chemical Industry Zone, Lianyungang.
Year 2007 --- New chemical plant is set up in Shandong Province to enhance the manufacture of 2-Ethylsulfonyl imidazo [1,2-a] pyridine-3-sulfonamide and Sulfosulfuron Tech.
Year 2008 --- New projects i.e. 2,6-Dihydroxybenzoic Acid and Methyl-3-chloro-5-Amino sulfonyl-1-methylpyrazole-4-carboxylate are invested. The latter one is the main intermediat of Halosulfuron-methyl.