POSCO Holdings Inc. engages in the production of steel products. It operates through the following divisions: Steel, Engineering & Construction and Trading. The Steel division produces cold rolled, hot rolled and stainless steel products, plates, wire rods and silicon steel sheets. The Engineering & Construction division engages in the planning, designing and construction of industrial plants, civil engineering projects, commercial and residential buildings. The Trading division exports and imports steel products and raw materials. The company was founded by Tae-Joon Park on April 1, 1968 and is headquartered in Seoul, South Korea.

Shanxi Taigang Stainless Steel Co., Ltd. engages in the production and sale of stainless steel and other steel, billets, ingots, ferrous metals, ferroalloy, and metal products. It involves domestic trade, import, and export of raw and auxiliary materials required for the production of steel. Its products include carbon steel and stainless-steel products such as cold-rolled coil, hot-rolled coil, hot-rolled plate, bar, wire, seamless pipe, welded pipe, and precision strip. Its products are used in emerging industries such as petroleum, chemical industry, shipbuilding, containers, railways, cars, urban light rail, large power stations, and spacecraft. The company was founded on June 11, 1998 and is headquartered in Taiyuan, China.

SMS AG & Co.oHG, part of Bernhard-Weiss-Stiftung, is a company headquartered in Hilchenbach, Germany, that provides services of operating nonresidential buildings.

Union Carbide Corporation is an American manufacturer of chemicals, petrochemicals, and related products. It focuses on the manufacture of building-block chemicals such as ethylene and propylene, which are converted into widely used plastics resins, primarily polyethylene. It is also a producer of ethylene oxide and ethylene glycol used to make polyester fibers and antifreeze, respectively. Union Carbide makes solvents and intermediates (oxo aldehydes and esters), vinyl acetate monomer, water-soluble polymers, and polyolefin-based compounds. Union Carbide Corporation was formed in 1917 from the combination of four companies: Union Carbide Co. (incorporated 1898), Linde Air Products Co. (incorporated 1907), National Carbon Co., Inc. (incorporated 1899), and Prest-O-Lite Co., Inc. (incorporated 1913).

Baoshan Iron & Steel Co., Ltd. is principally engaged in the manufacture and trading of iron and steel products and byproducts. The Company operates the business through three business divisions, including steel manufacturing division, which manufactures carbon steel, stainless steel, special steel and other steel products; steel sale division, which involves in the trading and sale of steel products, and other divisions, which covers finance, chemical, information and other units.

Zhenshi Group Eastern Special Steel Co., Ltd. is a joint venture company headquartered in Jiaxing, China, that manufactures steel products.

​Outokumpu is a global leader in stainless steel with cold-rolling capacity of 2.4 million tonnes. We create advanced materials that are efficient, long lasting and recyclable – helping to build a world that lasts forever. Stainless steel is an ideal material to create lasting solutions in demanding applications from cutlery to bridges, energy to medical equipment. Stainless steel as material is 100% recyclable, corrosion-resistant, maintenance-free, durable and hygienic. Outokumpu has been instrumental in developing the stainless steel industry into what it is today. Indeed our history is as old as that of stainless steel itself, dating back a century to our sites in Germany and the UK where stainless steel was invented in the beginning of the 1900s and in Sweden, where duplex was invented. Find out more about our R&D expertise. Our production facilities cover all continents and are located in ​Finland, Germany, Mexico, Sweden, the UK and USA, with a global sales and service center network close to our customers. Read more about our operations in Europe, Middle East and Africa (EMEA); in Americas and in Asia-Pacific (APAC). In 2015, Outokumpu sales were 6,384 million euros and stainless steel deliveries 2,381,000 tonnes. Outokumpu employs 11,000 professionals in more than 30 countries, with headquarters in Helsinki, Finland and shares listed in the Nasdaq Helsinki.

Steel Research Institute Co., Ltd., established on 1993-01-06, Business scope includes general items:Engineering and Technology Research and Experimental Development;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;New material technology research and development;R&D of metal products;Metal material manufacturing;Metal Material Sales;Sales of new metal functional materials;Sales of high-quality special steel materials;Sales of high-performance non-ferrous metals and alloy materials;Sales of Rare Earth Functional Materials;Magnetic material production;Magnetic Material Sales;Manufacturing of experimental analysis instruments;Experimental analysis instrument sales;Manufacturing of Specialty Chemical Products(Free of Hazardous Chemicals);Specialty Chemicals Sales(Free of Hazardous Chemicals);Chemical product production(No licensed chemical products);Chemical product sales(No licensed chemical products);Manufacture of new building materials(Free of Hazardous Chemicals);Manufacture of non-metallic mineral products;Metal Ore Sales;Sales of non-metallic minerals and products;software development;Wholesale of computer software, hardware and auxiliary equipment;Research and development of special electronic materials;Electronic special material manufacturing;Sales of electronic special materials;Manufacturing of electronic components;Wholesale of electronic components;Communication equipment manufacturing;Mechanical equipment research and development;Machinery sales;3DPrint base material sales;Industrial Design Services.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)(Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

Xingtai Iron and Steel Co., Ltd., established on 1997-01-22, Business scope includes steel,iron smelting;Steel calendering;Manufacturing of metal fittings for construction;Manufacturing of auto parts and accessories;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Non-residential real estate leases.Hazardous Chemicals Management(Crude benzene,Ammonia,coal tar,Wholesale of sulfur,no storage,Leasing storage equipment and transportation behavior,Hazardous chemicals business license is valid until2024year2moon25day).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

SMS group GmbH engages in the development and design of nonferrous metal, steel, and aluminum products. It specializes in digitalization, technical services, electrical and automation, design and manufacturing, additive manufacturing, lifecycle, SMS TECademy, sustainability, and intralogistics. The company was founded by Carl Eberhard Weiss in 1871 and is headquartered in Dusseldorf, Germany.

Wuxi Sanda Environmental Protection Technology Co., Ltd., established on 2001-11-19, Business scope includes purification equipment,Design of non-standard metal structural parts,manufacture,Install,processing;Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that the state restricts the company to operate or prohibits the import and export of).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Part of POSCO Holdings Inc., Zhangjiagang Pohang Stainless Steels Co. Ltd. is a Chinese company located in Zhangjiagang. The firm manufactures hot rolled and cold rolled stainless steel products.

Shenyang Research Institute Of Foundry is a Chinese private company that manufactures steel castings.

Centro Sviluppo Materiali SpA provides material technological services to steel and high tech industries. The company is headquartered in Rome, Italy.

Baosteel Desheng Stainless Steel Co., Ltd., established on 2005-11-23, Business scope includes smelting,hot rolled,solid solution,cold rolled,Machining,Sales of nickel metal,nickel alloy,Various alloys,hot(cold)Rolled Stainless Steel Coil,Nickel Alloy Coil,Carbon High Alloy Coil,Coal coking;foreign trade;R & D and technical services;thermal power generation;other electricity production.(If the above business scope involves the special franchise regulations of the state, the regulations shall be followed.)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Baosteel Stainless Steel Co., Ltd. is a Chinese company located in Shanghai and ultimately controlled by the Government of China. The firm manufactures and distributes stainless steel products.

Beihai Chengde Nickel Industry Co. Ltd. is a Chinese joint venture company. The firm manufactures steel products.

Whiting Equipment Canada Inc. is an acknowledged leader in the specialized fields of metallurgical manufacturing, chemical processing, materials handling, and transportation maintenance equipment fields. Whiting was first established in 1884, as a relatively small firm manufacturing high-quality metallurgical equipment.

Jiangsu Shenyuan Group Co., Ltd., established on 2002-05-13, Business scope includes valve,valve gangbang,Bearing steel,Stainless Steel Products,Stainless steel wire for welding,Heat-resistant steel products,High Speed ​​Tool Steel Design,research and development,Production,Sales(The scope of business involves the approval of the national special examination and approval regulations before operating),Manage the export business of the company's self-produced products and technologies,and the machinery and equipment required by the enterprise,spare parts,Import business of raw and auxiliary materials and technologies(Except for commodities and technologies that are restricted by the state from business operations and prohibited from import and export).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments) General project:Manufacturing of non-ferrous metal alloys;Non-ferrous metal alloy sales;Mechanical and electrical equipment manufacturing;Sales of mechanical and electrical equipment;Sales of high-performance non-ferrous metals and alloy materials;Metal material manufacturing;Manufacture of wire rope and its products;Manufacturing of forgings and powder metallurgy products;Sales of high-quality special steel materials;Sales of new metal functional materials;Sales of forgings and powder metallurgy products;New material technology research and development;Metal surface treatment and heat treatment;Quenching(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Nippon Yakin Kogyo Co., Ltd. engages in the manufacture and sale of stainless steel, specialty steel and processed stainless steel products. Its products include stainless and heat-resistant steel plates, strips, bars, pipes, and forgings; ferro-nickel and high nickel steel alloy; NAS coat for roofs, checker plate, angle, flat bar, and processed stainless steel products. The company was founded on August 22, 1925 and is headquartered in Tokyo, Japan.