Samko Timber Ltd. is an investment holding company, which engages in the manufacture and trade of timber products. It operates through the SGS Division and ST Division segment. The SGS Division segment refers to the operations of PT Sumber Graha Sejahtera group of entities which involves in manufacturing and sales of primary processed timber products such as general plywood and laminated veneer lumber; and secondary processed timber products such as truck, piano body parts, and decking. The ST Division segment covers the operation of Samko Timber Limited and Samko Trading Pte Ltd group of entities which focuses on trading all types of timber products manufactured by the division, SGS division, and third parties. The company was founded by Koh Boon Hong in 1978 and is headquartered in Singapore.