PT Jaya Construction Manggala Pratama Tbk (JKON) is part of the Jaya Group which focuses on the infrastructure sector. Through its subsidiaries, the company is engaged in building construction, asphalt and LPG trading, precast concrete manufacturing, mechanical and electrical services, and maintenance. Initially this company was a contractor division of PT Pembangunan Jaya, but became a separate entity on December 23 1982. The company's projects include the development of Pembangunan Jaya University, Mass Rapid Transit, Pulogebang Bus Terminal, and Ciputra World Jakarta.