Lianyuan Steel in Loudi city, Hunan province, is one of the core backbone enterprises of Hunan Iron & Steel Group Co., Ltd, with a complete set of modern technology equipment from coking, sintering, smelting, steel rolling, processing and distribution, it is the world's main high-end heat treatment plate processing base for medium and thin specification, national high-tech enterprise, Hunan green factory. It has a comprehensive scale of annual steel production of more than 12 million tons and total assets of 44.539 billion yuan. In recent years, Lianyuan Steel unswervingly implement the strategy of quality benefit and accelerates the integrated development of industrial chain, talent chain and innovation chain, a large number of advanced production lines, such as steel for high-strength engineering machinery, cold-rolled high-end home appliance, cold-rolled single stand mill, 1580 hot strip mill, high-speed rebar mill, have been put into production, with greatly enhanced capacity of high-end, intelligent, green equipment. More than 30 doctors and other high-end talents have been introduced, to jointly tackle key problems with more than 10 domestic first-class scientific research institutions, 12 scientific and technological innovation platforms have been established, such as the joint innovation laboratory of automotive lightweight, the collaborative innovation center of high quality corrosion-resistant steel and green application, 4 scientific and technological achievements have won the National Scientific and Technological Progress Award, and 43 of that have won the Provincial and Ministerial Scientific and Technological Progress Award. It has become a national intellectual property advantage enterprise. A total of 53 key products have comprehensively replaced imports, and 201 authorized patents have been granted. Among them, high manganese steel LGHM400 is used to fill the domestic gap for low-temperature pressure vessels, hot-formed steel LR1500CV is applied to reduce the chassis parts weight of commercial vehicle by 33%, which is the first in the world.