BUMA (PT Bukit Makmur Mandiri Utama)

BUMA’s operations are located in Central, East and South Kalimantan where the majority of Indonesian coal reserves are located. BUMA operates under long-term mining contracts with coal mine owners for periods ranging from 3 to 10 years.

It has 11,000 employees and 3,000 units of heavy equipment.

Macquarie Bank Limited

Macquarie Group is a diversified financial group providing clients with asset management and finance, banking, advisory, risk and capital solutions across debt, equity and commodities. Founded in 1969, Macquarie Group employs more than 14,400 people across 25 countries. At 31 March 2018, Macquarie Group had assets under management of $A497 billion.

Trafigura Pte Ltd

Founded in 1993, Trafigura is one of the largest physical commodities trading groups in the world. Trafigura sources, stores, transports and delivers a range of raw materials (including oil and refined products and metals and minerals) to clients around the world. The trading business is supported by industrial and financial assets, including 49.3 percent owned global oil products storage and distribution company Puma Energy; global terminals, warehousing and logistics operator Impala Terminals; Trafigura's Mining Group; and Galena Asset Management. Trafigura is owned by around 700 of its 4,300 employees who work in 66 offices in 38 countries around the world. Trafigura has achieved substantial growth over recent years, growing revenue from USD12 billion in 2003 to USD180.7 billion in 2018. The Trafigura Group has been connecting its customers to the global economy for more than two decades, growing prosperity by advancing trade.