Weifang Lanqing Environmental Technology Co., Ltd. is located in the industrial park of Weifang City. It is committed to the R& D, production and application of Paper chemicals and Water treatment chemicals, and has achieved a number of new functional additives and related fine chemical technology breakthroughs. After long-term accumulation, we have established a chemical application evaluation system for the entire industry chain from Pulping, Wet end papermaking, Coating and Printing, which can simulate the papermaking and coating production process of paper machines in all aspects.

Lanqing 's Technology and Strength are in the leading position in the Domestic chemical industry. The annual output of various products exceeds 50, 000 tons. The products involve AKD Neutral Sizing Agent, Surface Sizing Agent, Dispersed Rosin Size, DSR, Low chlorine (< 700ppm) WSR, Carboxyl Styrene Butadiene Latex, Flocculant, DADMAC etcs, and the company has invested a lot of scientific research force to continuously innovate and develop new-type plastic replace materials such as: Water-based Acrylic Emulsion, Water Proofing Agent, Oil& Grease Proofing Agent, Barrier Emulsions etcs.

All product production processes fully apply PLC and DCS control technology, and have passed ISO9001, ISO14001, ISO45001 Quality Management System Certification.