Guiyang Special Steel Co., Ltd. (Guiyang Steel Mills) was founded in 1958. After relocation and upgrading, Our company now has the capacity to produce 500,000 tons of special steel and 700,000 tons of materials annually. It has the world's advanced electric furnace steel production line and the domestic advanced level of drill, steel rolling and forging production line. It is the largest production and research base for rock drilling drill steel products in China and a special steel enterprise with regional characteristics.

It has formed a series of products such as automotive steel, free-cutting steel, rail transit steel, drill steel tools, welding steel, military steel, fastener steel, petrochemical steel, tool steel, and bearing steel. The products produced are mainly used in infrastructure construction projects, power machinery, automobile high-speed rail, equipment manufacturing, national defense and military industries, etc. The key products drill tools and high-end free-cutting steel have the largest domestic market share. The independently developed high-speed heavy-duty railway locomotive axle steel EA4T has been exclusively certified by Siemens in Germany and supplied to CRRC Group. It is listed as a major national and provincial scientific and technological support project together with railway spring steel products.