Lanna Resources Public Company Limited, together with its subsidiaries, manufacture and distributes coal in Thailand and internationally. It operates through four segments: Domestic Coal, Overseas Coal, Ethanol, and Wood Pellet. The company also purchases and sells coal; produces and sells coal, ethanol, wood pellets, and soil conditioner; and generates and distributes power. In addition, it is involved in renewable energy, coal trading, and ocean freight transport businesses. The company was founded in 1985 and is headquartered in Bangkok, Thailand.