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), ultra fine barium sulfate, natural barium sulfate, 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. We focus on the long-term theme persistently to provide green,healthy, safe, friendly products and technology to help improving competitiveness of customers in the the market for more profit. Meanwhile, for better service to customers, Tengmin has passed Certificate ISO9001-2000 international quality system and SGS 's heavy metal test,showing our harmless products. On the condition of meeting the requirement, Tengmin's customers spread Japan, Malaysia, Indonesia, Korea, Cuba, Chile, Azerbaijan and so on. Our pleasure to support you with our products: Barium sulfate BaSO4, natural and precipitated, from 200 mesh to 8000mesh from our ore mine. Silicon Dioxide, precipitated and fumed, for different applications. Titanium Dioxide TiO2, rutile and anatase, for paints, caotings, inks, plastics,