Founded in December, 1990, TianJin TaoShi Chemical Industry Co.,Ltd., as a manufacture and factory of basic organic chemical materials, is established by aidelong and other six chemical factories,one of the biggest professional manufacturer in china.(which was established in 1959)With 655 employees, 100,000sqm lands and CNY 350 million of assets, we now mainly produce "Aidelong" branded organic chemical raw materials such as phthalic anhydride,DOP,STTP,DBP, maleic anhydride, anthraquinone,HIPS,