Company Structure



About Supreme Energy

PT Supreme Energy was founded in late 2007 by professionals with experience and knowledge in the energy sector, including the development and geothermal operations in Indonesia. The company has started a preliminary survey of geothermal activity since the beginning of 2008 as their first assignment in three geothermal areas in Indonesia. (


ENGIE (previously name GDF Suez) develops its businesses (electricity, natural gas, services) around a model based on responsible growth to take up today’s major energy and environmental challenges: meeting energy needs, ensuring the security of supply, combating climate change and optimizing the use of resources.

The Group provides highly efficient and innovative solutions to individuals, cities and businesses by relying on diversified gas-supply sources, flexible and low-emission power generation as well as unique expertise in four key sectors: liquefied natural gas, energy efficiency services, independent power production and environmental services.

ENGIE employs 147,200 people worldwide and achieved revenues of €81.3 billion in 2013. The Group is listed on the Paris, Brussels and Luxembourg stock exchanges and is represented in the main international indices: CAC 40, BEL 20, DJ Stoxx 50, DJ Euro Stoxx 50, Euronext 100, FTSE Eurotop 100, MSCI Europe, ASPI Eurozone and ECPI Ethical Index EMU. For more information:

About Sumitomo Corporation
Sumitomo Corporation is one of the leading Japanese trading firms and has been active in independent electricity generating business since the 1990s. It owns over 5,600MW of net capacity as of today, while supplying more than 48,000MW power generation facilities as EPC (engineering, procurement, and construction) contractor. For geothermal power business, Sumitomo has supplied over 2,000MW generating facilities globally and 640MW in Indonesia alone. Further information about Sumitomo Corporation is available at:

About Marubeni Corporation

Founded in 1858, Marubeni Corporation is one of the leading Japanese trading firms publicly listed in Japan, which has engaged in various businesses including power projects and infrastructure, plants and industrial machinery, real estate development and construction, metals and mineral resources, food, chemicals, etc.

In power projects and infrastructure business, Marubeni has invested in 51 power generation facilities in 23 countries outside of Japan with gross capacity of approximately 35,000MW and net capacity of approximately 10,500MW. It also supplied approximately 99,000MW power generation facilities as EPC contractor around the world since 1960’s. More detailed information about Marubeni can be obtained at