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Golden Energy & Resources Ltd. is an investment holding company, which engages in the exploration, mining, and marketing of metallurgical coal and and energy coal. It operates through the following segments: Energy Coal, Metallurgical Coal and Non-coal Business. The Energy Coal segment consists of exploration, mining, processing and marketing of energy coal from its coal mining concession areas, and procuring sales orders from customers and sourcing for domestic suppliers. The Metallurgical Coal segment deals with the exploration, mining, processing and marketing of metallurgical coal from its coal mining concession areas. The Non-coal Business is involved in forestry, investment holding company and provision of management services. The company was founded by Quee Hock Chia on December 2, 1995 and is headquartered in Singapore.

Part of Star Success Pte Ltd., Anrof Singapore Ltd. is a company that provides forestry services. Anrof Singapore Ltd. is based in Singapore, Singapore. Anrof Singapore was acquired by Golden Energy & Resources Ltd., part of Star Success Pte Ltd. from August 16, 2023 on March 12, 2004.

The Group's principal activity is manufacturing plywood, fancy plywood, block board and moulding. The Group's factory is located in Jelapat, South Kalimantan. The Group's products are sold locally as well as exported to other countries including USA, Japan, Taiwan, Europe and The Middle East.

PT Marga Buana Bumi Mulia is an Indonesian company that manufactures and imports pulp products.

Part of PT Dian Swastatika Sentosa Tbk, PT Barasentosa Lestari is a coal mining company based in Jakarta, Indonesia. The company is a member of the Association of Indonesian Coal Mining Companies (APBI-ICMA), which provides valuable information about the coal mining industry and helps to solve member's issues. The company is also involved in supporting mining student activities in Indonesia. Recently, the company participated in a working group on mineral and coal downstreaming held by the Indonesian Chamber of Commerce and Industry (KADIN) and met with the Investment Coordinating Board (BKPM) to discuss the government's program to accelerate downstreaming in the mineral and coal sectors. The CEO of the company is Sulekera Lingadevaru Ravi.