ZK International Group

Manufactures and distributes stainless-steel and carbon-steel pipe, fittings and steel strip for drinking-water, gas, construction and industrial systems. The last reported portfolio also included low-margin electrolytic-nickel trading, while its earlier xSigma digital-finance and blockchain businesses had been disposed. Engineering staff provide network design, CAD drawings, prototypes and installation support alongside production under the Zhengkang trademark.

Serves customers mainly through distributors across China, with exports to Europe, Africa and Southeast Asia. Integrated strip-to-fitting production, a broad fittings catalog and engineering support underpin the operating model. The U.S.-listed BVI parent holds the PRC businesses through subsidiaries and relies on their distributions; PRC reserve and foreign-exchange rules constrain cash movement. Shareholders approved a proposed sale of the subsidiaries containing the core pipe business, but the reviewed record did not establish completion.