PT Krakatau Steel (Persero) Tbk, together with its subsidiaries, engages in the production and trading of iron and steel products in Indonesia and internationally. It operates through Steel Products, Infrastructure Facilities, Engineering and Construction, and Other Services segments. The Steel Products segment is primarily involved in production and sale of steel products, such as sponge iron, steel slabs, hot rolled steel, cold rolled steel, wire rods, various steel pipes, profile steel, and reinforcing bars, as well as services related to steel, such as coating and tolling services. The Infrastructure Facilities segment provides port services for berthing, loading and unloading goods and containers, seaport support services, and warehousing and transport services. This segment also offers sale and development of industrial estates, including infrastructures, hotels, and sport facilities; electricity supply services, as well as management and maintenance of power plants and electrical workshops; and clean water supply, industrial demineralised water supply, and waste management services for industry and companies. The Engineering and Construction segment is involved in the construction, industrial engineering, planning, and contracting of various types of buildings; export and import of goods; and provision of services and software. The Other Services segment provides information technology services. It also engages in the production of plain bars; steel trading activities; oil and gas fuel, lubricants, and petrochemical trading activities; coal and mining business; and generation and distribution of electricity. In addition, the company offers consulting services; machineries maintenance, fabrication, and construction services; transportation services; freight and warehousing services; vehicle and equipment rental services; and medical services. PT Krakatau Steel (Persero) Tbk was founded in 1970 and is headquartered in Cilegon, Indonesia.