Haining Hongyu Chemical Co., Ltd. is located in Haining city, Zhejiang province, enjoying beautiful landscape and convenient transportation. In the past over 20 years, our company always advocates the the spirit of "human-oriented, science and technology as guide" and considers product quality and service as top priority. Our company is a professional manufacturer of solvent dyes and has more than 20 professional technicians, complete inspection facilities. The company mainly produces four series of products including azo, anthraquinone, heterocycle and metal complexing, which are of excellent performances and full chromatogram, widely used in coating, ink, color separation of oil products and coloring of plastic. Moreover, our company also produces heat stabilizer of PVC. Our products are sold well at domestic and overseas market, highly appraised and trusted by clients. There Our products are of good quality and in wide chromatograph. They are widely used in coloring of paint, printing ink, plastic, and in color separation of oil products.