Yunnan Qujing Chenggang Iron and Steel (Group) Co., Ltd. was established in 2004 and is located in Qujing, Yunnan. It is an enterprise mainly in the ferrous metal smelting and rolling processing industry.

The group company has established the path of "enterprise collectivization, business diversification, process modernization, management standardization, quality standardization, service excellence, cost leadership, and clean production." The company has formed a modern steel complex with "supporting links, complete facilities, advanced technology, energy conservation, and environmental protection," focusing on steel smelting and rolling, supplemented by logistics, trade, mining, investment, energy, and power. The company's annual steel production capacity is more than 2 million tons.

Its main products include Q195, Q215, Q235, HRB335, HRB400 high-quality steel billets, hot-rolled ribbed steel bar series HRB335, HRB400, HRB335E, HRB400E, and 12mm-28mm high-strength earthquake-resistant rebar for reinforced concrete. These products have obtained national industrial product production licenses and have been rated as high-quality products in Yunnan and famous brand products of industrial enterprises in Yunnan. The company has passed ISO9001:2008 international quality management system certification. Its products enjoy a good reputation in Yunnan, Guizhou, Sichuan, Guangdong, and Guangxi regions and are deeply trusted by customers. "Chenggang brand" products are widely used in national and provincial (municipal) key projects such as the 289-meter-high main dam body of Baihetan Hydropower Station, the second largest hydropower station in the world, Changshui International Airport, Shanghai-Kunming High-speed Railway, Xi-Kunming High-speed Railway, Kunming South Railway Station project.

To implement new development concepts, build a new development pattern, implement the national "carbon peaking and carbon neutrality" decision and deployment, and actively respond to the supply-side structural reform policy of the steel industry, the company actively eliminates backward production capacity and promotes the improvement of equipment levels. Chenggang Group's 2.6 million-ton steel transformation and upgrading project with an investment of 8.6 billion yuan has been completed and put into operation, of which 1.5 billion yuan was invested in energy-saving and environmental protection facilities and equipment. Through transformation and upgrading, the company has achieved clean production, intelligent equipment, modernized processes, energy conservation and low carbon, and lean management, and it has taken the lead in achieving the company's ultra-low emission goal.