Dye intermediates BU  is  located in Dongguang County, Cangzhou City, Hebei Province. Dyes Intermediates BU mainly engages in the production and sale of dye intermediates DSD acid, NTS and dinitrotoluene sulfonate (DNTS), with a world market share of about 53% for DSD acid.

 Parks of its production bases are divided into 3 zones: administration zone, logistics zone and production zone, according to operating models of modernized chemical industry enterprises, to realize the safe, scientific and efficient operation of bases.

As one of developers of standards of the Ministry of Industry and Information Technology for DSD acid, DSD acid products of Dyes Intermediates BU were often adopted as industry standards because of product consistence, and therefore a broad customer foundation had been built.
Moreover, with strong scale-economies-effects, technologies at leading-edge levels, and advantages of internal stable supply of upstream raw material PNT, we have established strong competitive advantages for dye intermediates.