Mr. Istiardjo serves as Independent Commissioner of PT Perdana Karya Perkasa Tbk since September 28, 2006. He studied Mining Exploration Geographic ITC Holland in 1979. Starting his professional career as the Section Head at Directorate General of General Mining, Ministry of Mines and Energy in Jakarta, then as the Secretary of the Board of Commissioners of PT. Bukit Asam in Jakarta, Department Head of Programming Reporting at Directorate General of General Mining, Ministry of Mines and Energy in Jakarta, as Head of Provincial Office of Mines and Energy in Padang, Province of West Sumatra, and finally as Head of the same Provincial Office in Samarinda, East Kalimantan .
Age: 74 Executive Since 2006