Hengyang Valin Steel Tube Co., Ltd. (abbreviated as HYST) is a globally influential specialized seamless steel tube manufacturer.

Facilities and Capacity: It possesses a complete, fully integrated seamless steel tube production process covering ironmaking, steelmaking, pipe rolling, and deep tube processing, with one 1,080m³ blast furnace, three round billet production lines (small, large, and extra-large), six internationally advanced tube production lines (∮89, ∮180, ∮219, ∮340, ∮460, ∮720), and 18 deep-processing lines. It has an annual production capacity of 1.5 million tons of iron, 2.6 million tons of steel, 2.2 million tons of tubes, 1 million tons of heat treatment, and 600,000 tons of threading, with annual sales revenue of approximately 15 billion RMB.

Product Specifications: The company can produce seamless steel tubes with diameters of 32–762mm and wall thicknesses of 3.0–130mm in various specifications, and can also produce square and rectangular tubes with side lengths of 100–550mm and wall thicknesses of 3.5–120mm.

Company Development: It has clearly defined the "4321" strategic vision to promote high-quality enterprise development, namely taking the realization of the four strategic goals of "Green HYST, Digital HYST, Century HYST, and Happy HYST" as the main task, taking the three leads of "leading industry development direction, leading industry product standards, and leading industry market positioning" as the direction, taking the two cultural genes of "pragmatism and innovation" as the core, and achieving the common vision of "world-class specialized seamless steel tube enterprise."