PT Pertamina Geothermal Energy Tbk (the Company) was established on December 12, 2006 by Notarial Deed No. 10 of Marianne Vincentia Hamdani, S.H. The Company started its commercialoperations on January 3, 2007. The Company’s parent is PT Pertamina Power Indonesia and its ultimate parent is the Government of the Republic of Indonesia.