•PT. Putra Tunggal Mandiritama is a company engaged in construction services where established in 2009 with the deed of establishment no. 29, Domiciled in Balikpapan - East Kalimantan. •The first significant growth was in 2012, when PT. Putra Tunggal Mandiritama expanded into a construction contractor by handling various important projects in Oil and Gas Company, such as fabrication and installation of Piping, structure and flow line on Total E&P Indonesie as a winner of Conductor and Handil Well Connection project on Mahakam area.