PT Reska Multi Usaha (PT RMU) is a company jointly established by KAI with Yayasan Pusaka on July 2nd, 2003 in Jakarta. Shareholders of PT Reska are KAI holding 95.01% and Yayasan Pusaka holding 4.99%. At first PT RMU was a restaurant unit under KaDaop which managed most of restaurant trains. Then in 2003 PT Restoran Kereta Api (PT RESKA) was established as a subsidiary of KAI. Subsequently, in 2009 changed its name to PT Reska Multi Usaha (RMU).

PT Trakindo Utama (Trakindo) is the world-class heavy equipment solution provider of Caterpillar machines and engines in Indonesia. Trakindo was founded in 1970 by AHK Hamami and has been an authorized distributor for Caterpillar since 1971.

Today, with a proud history of more than 45 years, Trakindo has grown today into a company that actively contributes to Indonesia’s national development.

Vale is Indonesia's leading producer of nickel in matte. Our 3,000 employees can be found in operations, from Sorowako and Central Sulawesi, Southeast Sulawesi, South Sulawesi to Jakarta. Their jobs touch every aspect of the nickel business – including research and development, exploration, mining and processing, and overseas marketing. They are united by a common goal: to make Vale the lowest cost and most profitable producer of nickel.

PT Bank Tabungan Negara (Persero) Tbk or Bank BTN  was established in 1897 under the name of Postspaarbank. The name was changed to Bank Tabungan Pos in 1950 and finally became Bank Tabungan Negara in 1963. Bank BTN listed its stock offering on 17 December 2009 on the Indonesia Stock Exchange, and was the first Indonesian bank to securitize asset by recording Asset Backed Securities - Collective Investment Contracts (KIK-EBA).

Bank Muamalat as pioneer of islamic banking has always been committed in bringing competitive and easily accessible islamic banking services for people.

Today Bank Muamalat provides services to approximately 4.3 million customers through 457 service offices in all 34 provinces in Indonesia and supported by a network of service outlets in over 3,700 System Online Payment Point (SOPP) at PT POS Indonesia and 1,958 Automated Teller Machine (ATM ). Customer accessibility is greatly improved through our Shar-E Gold debit card that are accepted for purchase transactions, free of charge, at million of merchants in of the world.

PT Freeport Indonesia is a mineral mining company affiliate of Freeport-McMoRan (FCX) and MIND ID Indonesia's Mining Industry. PTFI mines and process ores produces concentrates containing copper, gold and silver.  We market concentrates all over the world, and mainly to domestic copper smelter, PT Smelting. We operates in the remote highlands of the Sudirman Mountain Range in Mimika Regency, Papua Province, Indonesia.