The steel sector has an annual steel production capacity of 12.5 million tons, with three main production bases: Sanming headquarters, Quanzhou Minguang, and Luoyuan Minguang. Equipped with advanced industry processes such as coke ovens, sintering machines, blast furnaces, converters, refining furnaces, and rolling mills, they produce a wide range of products including high-grade building materials, metal products, medium and thick plates, round steel, and H-beams. Multiple products, such as cold-drawn steel hot-rolled round bars, alloy structural steel hot-rolled round bars, and low-alloy structural steel hot-rolled thick plates, have received honors like "Gold Cup Quality Products" and "Fujian Province Manufacturing Single Champion Products."Products are widely used in key projects such as nuclear power, airports, subways, and highways, and have strong competitive advantages in the province and surrounding markets

The leading enterprise in this sector is Fujian Sansteel (Group) Co., Ltd. It has evolved into a large enterprise group spanning industries, regions, and ownerships, primarily focusing on steel manufacturing and integrating chemical new materials, trade circulation, metal products, environmental resources, cultural tourism, and construction maintenance. As of the end of 2023, Sansteel Group had 15,900 employees, total assets of 59.524 billion yuan, and 19 wholly-owned and controlling subsidiaries, including Fujian Sansteel Minguang Co., Ltd., which is a listed company.

Since 1988, Sansteel Group has consistently ranked among China's top 500 enterprises, holding the 436th position in the "2023 China Top 500 Enterprises" and the 228th position in the "2023 China Top 500 Manufacturing Enterprises." The group has received various honors, such as the National May 1st Labor Certificate, National Civilized Unit, National Advanced Grassroots Party Organization, National Model Labor Harmony Enterprise, National Quality Management Advanced Enterprise, First Batch of National Intellectual Property Advantageous Enterprises, China Iron and Steel Industry Science and Technology Advanced Unit, National Advanced Collective in the Iron and Steel Industry, the first "Fujian Provincial Government Quality Award", the exemplary organization in the Application of Enterprise (Affairs) Informatization in Fujian Province, the Demonstration Unit of Enterprise Culture Construction in Fujian Province, the User Satisfied Enterprise in Fujian Province, the Enterprise with Excellent Industrial and Commercial Credit in Fujian Province (AAA), the benchmarking enterprise in the management of key state-owned enterprises, the National Industrial Tourism Demonstration Base, and the National AAAA Tourist Attraction.