Invested by Taiwan ChingShiang Chemical Plant Co., Ltd., Ching Shiang Chemical Industrial (qingdao)Co., Ltd. is a modern and comprehensive chemical and fertlizers manufacturer, it was registered with the capit of RMB51. 8 million yuan, whose scale of investment total RMB 150 milliom yuan, of which, the annual output of 20, 000tons poly-aluminum chloride(purify agent)project belongs to one of the key development projects in the 'National 863 Plans" Adopting currently advanced production equipment and technologies leading at home, the project adopts the heating and pressure applying reaction and pressure filtration, high-tower-base centrifugal spray drying and so on, with the production safty and environment protection automatically controlled by computers, the product are stable and predominant.