SeAH Holdings is a holding company in charge of managing SeAH’s subsidiaries and investment asset portfolios. The company maximizes the return on investment through professional management and resource allocation and develops new business to enhance the future value of SeAH as a whole. The company is persistently upholding SeAH’s corporate culture of integrity and enhancing the value of brand assets and corporate image.

SeAH Steel Holdings manages domestic and overseas investments and subsidiaries, with a focus on welded steel pipe manufacturing. Having expanded its steel pipe business in Korea and abroad, the company is now dedicating more resources to efficient and professional business management. The company is constantly enhancing its global business strategy by analyzing and promptly responding to changing trade environments.

Founded in 1967, SeAH Steel was the first Korean company to export steel pipe overseas. Since then, SeAH Steel has been an industry leader, constantly developing new markets and supplying them with high-value products. The company operates four production plants in Pohang, Suncheon, Changwon, and Gunsan, which focus on high-value steel pipe products for export, large-diameter heavy wall pipes, stainless and titanium pipes, and steel pipes for the Korean market, respectively. SeAH Steel has a strong experience in manufacturing products for use in energy and construction industries. Building on this foundation of experience, the company has recently started developing products for the offshore wind power market, and it has enhanced its competitiveness in the LNG pipe market by operating Korea's largest 24-inch stainless steel pipe facility.

SeAH Besteel Holdings is a holding company that establishes strategies for the specialty metal manufacturing business, including special steel, and engages in systematic business management activities. In line with the developing global business environment, the holding company is focusing on the role of creating integrated synergies by strategically managing the product portfolio of its special metal businesses and strengthening Its non-financial competencies through strategies such as ESG management and establishment of compliance policy for compliance management system enhancement.

SeAH Besteel produces special steel products for automobiles, machinery, and heavy equipment for the construction industry. The company’s production capacity is the largest in the Korean market, with an integrated production line comprising steelmaking, rolling, and refining aided by optimal automation processes. SeAH Besteel’s R&D center ensures outstanding product quality, solidifying the company’s position as a leader in the specialty steel market. Currently, the company is supplying proprietary special steel materials to automobile companies in Korea and overseas. The company is constantly enhancing its product competitiveness by actively signing OEM contracts with global automakers. At the same time, it is also supplying gearboxes for wind turbines and materials for offshore wind power generators, advancing its position in the renewable energy market.

SeAH CSS is the only company in Korea that consistently produces stainless steel long products. Since joining SeAH in 2015, SeAH CSS has established its position in the high-end special steel market through expertise and differentiation. The company produces stainless steel wire rods, bars, and seamless steel pipes, along with a variety products including tool steel and mold steel. The company’s products serve as core materials in industrial machinery, industrial plants, automobiles, and shipbuilding.

SeAH Special Steel specializes in processing steel wire products as basic material for specialty parts used in electronics, automobiles, industrial machinery, ships, and construction. The company has innovated high quality products by developing its own Hydrogen Furnace to control and stabilize production quality. Consistent investment in R&D has resulted in outstanding product technology and competitiveness. The company has expanded its product portfolio to include high-value materials such as wire rods and steel bar.

SeAH Coated Metal is a comprehensive metal sheet manufacturer that specializes in manufacturing cost-effective color coated steel sheet, galvanized steel sheet, and pickled & oiled steel sheet products, which are used as interior and exterior building materials and exterior materials for home appliances. Currently, the company
is expanding its portfolio of color steel sheets, which range from general-purpose products to premium products. The company places special focus on a range of high-end products that include color coating aluminized steel sheet, printed steel sheet, MATT steel sheet, and embossed steel sheet, occupying a unique position in the high-end building materials market.

SeAH M&S produces ferro-molybdenum alloy, a rare metal that is key to the production of specialty steels and semiconductors. The company operates the only molybdenum roasting facility in Asia and boasts a number of advanced manufacturing systems, producing molybdenum products that were once imported from overseas. SeAH M&S has been developing into a global provider of comprehensive resource solutions by supplying coal, nickel, aluminum, and vanadium, all of which are core materials used in the energy, resource, and material industries

SeAH Aerospace & Defense produces high-strength extruded aluminum alloy products, which are used throughout the aviation and defense industries. The company has the top-tier capacity of aluminum alloy production in the Korean market. Its products boast world-class quality competitiveness, making the company a leader in the global aviation and defense materials market. Leveraging its leading technologies and expertise, SeAH Aerospace & Defense provides integrated solutions for extruded aluminum products to a wide range of industries.

SeAH L&S is a logistics and processing distribution company specializing in special cargo for steel products. The company has accumulated experience and know-how in logistics and steel processing. Currently, SeAH L&S is focusing on developing ways to generate higher customer value using its nationwide network of branches and infrastructure.

SeAH Networks provides information and communication hardware and software services that establish convenient digital environments. The company is building optimal information and communication facilities using system integration (SI) tools, providing comprehensive solutions in the fields of intelligent building systems (IBS) and multimedia (MI), and computer equipment supply. Leveraging its know-how, SeAH Networks is actively participating in ICT convergence outsourcing services, new and renewable energy power generation projects, and infrastructure improvement projects in developing countries. More recently, it has participated in construction management and large-scale steel structure engineering projects for the SeAH Group on the back of its experience and technology in the field of steel plants.