The SINOSI GROUP (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 group member (main only) 
Sinosi Group Corporation
Sinosi Oil & Chemical Ltd.
Sino Surplus International Ltd. 
Sino Silica Beijing Co., Ltd.
Sino Quartz Beijing Co., Ltd.
Sinosi Sci-Tech Beijing Co., Ltd.
Sinosi Baoly Solar Energy Development Ltd.
Sinosi Trading Beijing Co., Ltd.
Sinosi International Trading Co., Ltd.
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