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 Ministr