Weifang Binhai Petro-chem Co., Ltd. is a wholly-owned subsidary of Tiande Chemical founded in 2005. Located in Binhai Ocean Chemical Development Zone, Weifang Zone, Weifang City, Shandong Province, It covers an area over 57 hectares. Binhai Petro-chem focuses on the R&D, manufacture and sales of Diethyl Malonate, Dimethyl malonate, N-Butyl Cyanoacetate, 2-Octyl Cyanoacetate, 2 Methoxyethyl Malonate, Ethoxy Methylene Malonic Acid Diethyl Ester, EDTA series, DTPA series, Mono Chloro Acitic Acid, etc. It can aslo manufacture various canynoacetates and malonates according to customer's requirement.

The Heat-power Cogeneration Plant and the Chloro-Alkali Plant in this industrial park guarantees in time and adequate supply of power and raw materials to Binhai Petro-chem. The two 5000tons berths in Weifang port within 10 km and the newly built highway within 5 km from the site facilitate the logistics for the plant.