O-Phthalimide
N-HydroxymethylPhthalimide
N-Chloromethyl-o-Phthalimide
N-hydrxyPhthalimide
Antiscorching Agent CTP (PVI)
High melting point Hexabromocyclododecane
  About us

Linqu Tianhui Biological Additives Co.,Ltd. — is located in Dongcheng Industrial Park in Linqu, Weifang, China. Close to Ji’nan-Qingdao Expressway and Weifang Airport, the company enjoys good location. Boasting top-notch technicians, we are a high-tech enterprise integrating R&D, manufacture and sales.

With perfect infrastructure, advanced processing techniques and complete testing methods, we are a private chemical enterprise with registered capital of 0.5 million RMB, annual production value of 30 million RMB and 50 employees.First-class production equipments and advanced inspection instruments and high-caliber employees ensure the high quality of products which have been well received among users.

Adopting the world’s leading-edge technologies, we manufacture phthalimide 2000mt./a, N-(Hydroxymethyl)phthalimide1000mt./a. as well as N-Chloromethylphthalimide, N-Hydroxyphthalimide, phthalimide potassium etc., which are mainly used for pharmaceutical intermediates, rubber ingredients anddyes intermediates.

With leading production techniques, high quality products and the largest domestic production scale, we have built a satisfying brand for customers. While meeting the domestic needs, products have been exported to Europe, South Korea, Japan and the Southeast Asia.

Sticking to the principle of "People Foremost, Quality First, Credit Up-most", we offer customers qualified products and perfect services. We are now enjoying rapid growth and have become a key company in Linqu.

Zhang Ruping the General Manager of the company, warmly welcome the visit and business of friends from all walks of life for common development!

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