PT Krakatau Steel (Persero) Tbk engages in the production and distribution of integrated steel. It operates through the following segments: Steel Products, Infrastructure Facility, Engineering and Construction; and Other Services. The Steel Products segment produces and sells steel products such as sponge iron, slabs, billets, hot rolled coils, cold rolled coils, wire rods, various steel pipes, reinforcing bars, steel wires, steel coating and tolling services. The Infrastructure Facility segment includes port management services, real estate and hospitality, electricity, and water. The Engineering and Construction segment refers to the construction, engineering, planning of various types of buildings; export and import of goods; provision related services and software. The Other services segment provides information technology services. The company was founded on August 31, 1970 and is headquartered in Cilegon, Indonesia.