Shanghai Tengmin Industry Co.,Ltd. was established as a professional plant in the field of manufacturing basic chemicals and sales. Tengmin owns large material ore mine to keeps producing constantly . Given advanced equipments , Tengmin posses the ability to process kinds of fine chemicals , such as sub micron grade Precipitated Barium Sulfate (D50 ,0.8um) , sub micron grade precipitated silica as well as some other basic chemicals which are widely used for electronic ink , printing ink, automobiles paint, rubber and plastic and other fields.