Yonkong has been specializing in the field of enzymes specialized in enzymes and their applications. The products line started from feed enzymes and gradually comes to brewing enzymes, paper making enzymes, clothing enzymes, baking enzymes and so on. Main products- phytase, xylanase, mannanase, alpha-galactosidase, cellulase, beta-glucanase, amylase, protease and complex enzymes have already gained great honor in United States, Russia, Ukraine, Thailand, Vietnam, South Korea and other regions.