Permata's primary activity is to acquire, explore and develop coal mines in Indonesia aside from its trading activity. The Group produces coal from its own mines in, purchases coal from third parties and sells coal to emerging markets in Asia including China, India, South East Asia, Japan and Korea. The Group is currently one of the largest private producers in Sumatra and is an emerging producer in Kalimantan. Permata Energy Resources is a leading privately owned coal producer in Sumatera and an emerging producer in Kalimantan. Permata Energy Resources is particularly active in the acquisition, exploration and development of coal mines and coal infrastructure in Indonesia. Currently Permata Energy Resources is the holding company of amongst others, PT. Riau Baraharum (RBH) and PT. Nusantara Termal Coal (NTC). Both RBH and NTC are CCOW companies with operating licenses until 2035 and 2036 respectively. RBH’s mine location is at Indragiri-Hulu, Riau province and has been in production since 2005. NTC’s mine is at Muara Bungo, Jambi province and has been in production since 2007. Both mines produce coal quality in the range of GAR 5,200 to 5,500. Permata Energy Resources is also able to source coal from its own mines and also purchase coal from third parties for sale and export to emerging markets in Asia including China, India, South East Asia, Japan and Korea. Permata Energy Resources sells its Coal under the trading name of PERMATA COAL.