Qingdao Miningsun Imp And Exp Co., Ltd. was established in 1998, as one of a leading manufacture and trading company. We have our legality rights of two factories and a lot of factory partners, with the hold stock of several good factories, we can offer you many kinds of construction material and a lot of rubber chemicals, like silica fume, carbon black, silica sand, silicon dioxide, rubber antioxidant and rubber accelerator.