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Changzhou Darui Chemical Company was established in 2005, primarily engaged in the import and export business of pesticides and various chemical intermediates. The factory is located in Heze City, Shandong Province, covering an area of 63 acres, and is mainly involved in the research, development, and production of pesticides and their intermediates.

The company's main products include Sulfosulfuron, Clodinafop-propargyl, and Pyrithiobac-sodium. It is currently a specialized manufacturer of Sulfosulfuron and its intermediate Sulfosulfonamide.