Welink International Enterprise Limited is a Hongkong based company with state-of-the-art chemical manufacturing facilities in mainland of China. Our mission is to help our customers achieve the highest quality at the lowest costs, and in the quickest time for their drug discovery and development programs.

As one of the leading manufacturers of phase transfer catalysis (PTC) and cationic surfactant, We provide a comprehensive range of quaternary ammonium salts, quaternary phosphonium salts, crownethers, quaternary ammonium hydroxide and other series;. Backed by the global manufacturing network of our honored partnerships, we offer customers the highest quality and purity in fine chemical products. We are accustomed to supplying quats in the pharmaceutical industry and the electronics industry, Petrochemicals Production, Biological Industry, Electroplating, Textile Industry, Architecture as well as cosmetic industry and many others.


With management that is environment-friendly, transparent and ethical, we work to earn the trust of our customers, shareholders and world citizens. We are committed to contributing to society and being a good neighbor.

We have designed the Welink Web site to offer detailed information about the company's background, performance and products. We're glad to be of service.

sales001(at)chemicalptc(dot)com