The Ryonggang Stone Processing Factory conducts its business activities based on its granite mine and stone processing bases. The area in which the factory is situated has a rich deposit of granite, a high-quality material. Availing itself of such favourable economic conditions and automated stone processing facilities including three-axis processing machines for embossed stones, the factory turns out processed stone goods, numbering over 100 varieties in more than 30 kinds including stones for wall decoration, balustrades, newels, flowerpots and other products which satisfy the demands of the customers.

It also conducts bonded processing of serpentine and other high-grade stone materials produced by the mines in relevant units.