PT Pertamina (Persero)
In the 1950’s, Republic of Indonesian Governmentpointed Army, established PT Eksploitasi Tambang Minyak Sumatera Utara, to handle oil fields in Sumatra territory island. On December 10th, 1957, the Company changed the name to PT Perusahaan Minyak Nasional, As Permina. This date where first Pertamina born up to this day.

In the year of 1960, PT Permina changed become as a company owned by governement Pn Permina. Then, on August 20th 1968, PN Permina joint with PN Pertamin Became, PN Pertambangan Minyak dan Gas Bumi Negara (Pertamina). The Indonesian Government issued Laws No.8 Year 1971, which positioned Pertamina as the only state owned enterprise tasked with managing the oil and gas from oil fields all over Indonesia and processing them into various products, to providing and meeting the demand for fuel and natural gas in Indonesia,processing various products and provide
service needs of oil and gas all over Indonesia.

From the Laws No. 22 year 2001 Goverment changed Pertamina position, then Public Service Obligation (PSO) programs shown from business activities. Government publish Laws No. 19 year of 2003, September 17, 2003, Oli and Gas Company owned by Government changed to PT Pertamina (Persero) to do oil and gas business from up stream sector to down stream sector.

On December 10, 2005, PT Pertamina (Persero), changed its logo from a sea-horse into an arrow
shape with the 3 basic colors of green, blue and red. This logo represents dynamism as well as an
environmental friendly. For further more infomation PT Pertamina (Persero) please see:

PT. Pertamina Training & Consulting
Further information about PT Pertamina Training & Consulting can be seen at:

Therefore, Shareholder structure of PTK as per Desember 31, 2015, is 99,999% Pertamina (Persero) and 0,001% Pertamina Training & Consulting.