YK is a sole proprietorship of private enterprises. The company predecessor DINGSHENG FINE CHEMICAL for YK(to be established in 2003),engaged in manufacturing and exploiting fine chemicals like :photoinitiator,fire retardant,ketone serious,Chloride intermediates serious ,etc... From 10 years developpment,our plant area increased from half hectare to nearly 6 hectares;the production line also expanded doubled.We have constructed 4 categories of fine chemicals (fire retardants,ketone,photoinit...