Nanjing shengqinghe Chemical Co., Ltd., formerly known as Nanjing "Qinghe Qizhuang" founded in 1946, with a registered capital of 20 million yuan and a total investment of 50 million yuan, is one of the more professional chemical service providers in East China. It has an advanced e-commerce system and a strong professional logistics team to provide customers with standardized and professional door-to-door integrated chemical logistics services 。 At present, it is specialized in the sales and services of national specialized control of precursor chemicals, precursor chemicals and other hazardous chemicals. It is a vice president unit of Nanjing highly toxic precursor chemicals management association, vice president unit of Nanjing precursor chemicals management association and vice president enterprise of Nanjing Chemical Industry and Commerce Association.