Series silica and silicon materials supplier Series silica and silicon products supplier Series silica and silicon producing equipments supplier Series solar energy products and fittings supplier Professional technical service provider The window of the silica and silicon service Mineral and chemical materials supplier Crude and refined oil supplier Car care and beauty products and related service supplier The SINOSI GROUP CORPORATION (SINOSI) is a professional and leading producer and trader of silica and silicon materials (silicon dioxide, silicon oxygen, pure silicon) and related products which including quartz, crystal, amorphous silica, hydrated silica, fused silica, ferro silicon, silicon metal, mono and polycrystalline silicon and so on. Meanwhile, we also offer the machinery, equipments, instruments and related service in this silica and silicon industry field. Backed by the former Ministry of Geology & Mineral Resources of P. R. China and sharing the most state of the art lab facilities and research resources of the Chinese Academy of Geological Sciences enabled the SINOSI a first class company in producing quality silica and silicon materials and related products as well as one of the most reliable trade company in the world.SINOSI and her branch companies, such as Sino Surplus International Ltd., Sino Silica Beijing Co., Ltd. and Sinosi Sci-Tech Beijing Co., Ltd. and so on, have been developed and merchandised various materials and products in mainly 30 categories, more than 500 types of silica and silicon materials and related products in China, SINOSI users now spread over 50 more countries and areas in the world wide market. The 99.9995% purity silica sands, 99.9%?s nanometer and micro silica powder and 95% spherical ratio fused silica powder which SINOSI developed are the top products in the world wide silica industry, and it has been the state-of-art milestone in this silica producing field.