The Sino Surplus International Limited?SINOSI?is the leading producer and sales company of silica, quartz and crystal materials and related products. Backed by the Ministry of Geology & Mineral Resources of China and sharing the most up to date lab facilities and research resources of the Chinese Academy of Geological Sciences enabled the SINOSI a first class company in producing quality silica, quartz and crystal materials as well as the most reliable sales company in China. SINOSI has been developed and merchandised 16 categories, more than 300 types of silica, quartz, crystal materials and related products. SINOSI users spread over 20 more countries and areas. The 99.995% purity silica sands and 99.9%?s nanometer silica powder which SINOSI developed are the top products of world?s silica industry. They are the state-of-art milestone in this field. SINOSI is also the one of the best raw materials suppliers of the World?s IT industry. The birth of top purity silica sand and micro silica powder materials, has built a solid foundation for the further development of world?s IT industry. Along with the rapid development of IT industry, SINOSI is challenging the highest peak of world?s technology with his top performance. As the authorized agent of Auto Magic, GM, IBM, Cisco, Sun,Lotus, Sybase, Sas, HP, Intel, Hoya, Jalux, Kagami, we also offer you with a full range of car care products, internet hardware & software, crystal arts & crafts and so on.