Shaanxi Longmen Iron&Steel(Group)Co.,Ltd. of is a state-owned enterprise officially approved by the State-owned Assets Supervision and Administration Commission of Shaanxi Province. It was officially registered and established in June 2007. On May 11, 2012, Longmen Iron and Steel Company was officially placed under the direct management of Shaanxi Iron and Steel Group. It is a wholly-owned subsidiary of Shaanxi Iron and Steel Group. Longsteel Company is a large-scale iron and steel complex integrating sintering, iron making, steel making and steel rolling. It is a key state-owned iron and steel enterprise supported by the development and revitalization plan of the iron and steel industry in Shaanxi Province. . The company occupies an area of more than 7,000 mu, has total assets of 18.586 billion yuan, and has an annual production capacity of 8 million tons of pig iron, 9.5 million tons of crude steel and steel comprehensive processing. Longsteel Company is located in Hancheng City, Shaanxi Province, a famous historical and cultural city in China and the hometown of Sima, with Longmen in the north, Yellow River in the east, Xiyu Expressway, Xihou Railway, and National Highway 108 adjacent to the factory area, with convenient transportation, sufficient hydropower, coal coke, and rich metallurgical resources.

In recent years, under the guidance of Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, Longsteel Company has practiced the five development concepts of "innovation, coordination, greenness, openness and sharing", and has now formed a full range of "Yulong" brand building steel products, full specifications, including HPB300, HRB400E, HRB500E full-scale building materials, British standard BS460, PSB785 and PSB830 fine-rolled threaded steel bars, PC steel bar materials, etc., and successfully developed HRB600 high-strength steel bars as technical reserves, and at the same time realized round billets, Mass production of seamless pipes, high-end manufacturing steels, strips and other series of non-construction steels. "Yulong" brand steel has been rated as a famous brand product in Shaanxi Province successively, and has been recognized as "National Inspection-free Product", "National Customer Satisfaction Product", "China Building Materials Quality Trustworthy Famous Brand", and the National Metallurgical Product Physical Quality "Golden Cup Award". Products are widely used in the Three Gorges Water Conservancy Project, Sichuan-Tibet Railway Construction, Jiuquan, Xichang Satellite Launch Center, the 14th National Games Olympic Sports Center, Xi'an Metro and other national and provincial key projects. The company has successively won honors such as the National May 1st Labor Award, the National Model Workers' Home, the National Civilized Unit, the A-level Environmental Protection Performance Standard Enterprise, the AAAA-level Industrial Tourism Scenic Spot, the National Green Factory, and the Pilot Demonstration Enterprise of Intelligent Manufacturing in Shaanxi Province.

The company has always been adhering to the corporate values of "all for the development of Shaanxi Iron and Steel, and all for the happiness of employees", and adheres to the path of resource conservation, environmental friendliness, and green ecological development. Under the strong leadership of the party and government of the group, it is making unremitting efforts to realize the goal of "domestic first-class industry leader" and the vision of building the most competitive high-end steel material service provider in western China and building a beautiful and happy new Shaanxi Iron and Steel Group.