Wijaya Karya (Persero) Tbk PT 

PT Wijaya Karya (Persero) Tbk, established in 1960 and headquartered in Jakarta, Indonesia, operates as a comprehensive construction and engineering entity with both domestic and international reach. The company's diverse operations are structured into several core segments: Its Infrastructure and Building segment specializes in delivering civil construction and public infrastructure projects. This includes developing roads, bridges, harbors, airports, dams, various types of buildings, and irrigation systems. The Energy and Industrial Plant segment is dedicated to the energy sector, providing a full spectrum of services from engineering, procurement, and construction (EPC) to the ongoing operation and maintenance of power plants, in addition to making strategic investments in the electricity generation field. Within its expansive Industry segment, the company manufactures a broad range of precast concrete goods, including polished concrete, piles, railway sleepers, bridge components, sheet piles, pipes, box culverts, marine structures, hollow core slabs, cylinders, and rigid pavement elements. This segment also performs extensive steel fabrication, producing structural steel products, aluminum castings, frame structures, conveyors, pipe racks, telecommunication and power transmission towers, steel bridges, tanks, silos, hoppers, pressure vessels, and welded beams, along with other specialized steel plate work and plastic injection products. Furthermore, it supplies bitumen products, encompassing granular and extracted asphalt. Finally, the Realty and Property segment is involved in real estate development, property management services, and the operation of condotels. Its portfolio includes residential housing (landed homes), high-rise structures, and industrial estates.