Sau Ian Tanoto

Supratechnic Pte Ltd. engages in the wholesale and distribution of marine equipment and accessories, and healthcare solutions. It provides boats, outboardand inboard motors and related precision parts, steering systems and control cable, and clutches and brakes. It also offers air cleaning systems. The company was founded in 1968 and is headquartered in Singapore.

Supratechnic (M) Sdn. Bhd. engages in the distribution of marine products. The company was founded in 1981 and is headquartered in Selangor, Malaysia.

Koon Cheng Development Pte Ltd. provides real estate services. The company is headquartered in Singapore.

Scientific & Industrial Instrumentation Pte Ltd. engages in designing and fabrication of control instrumentation and industrial chambers and ovens. Its services include installation, assembling, and trading of gas detection system; servicing and calibration; trading of process control instrumentation; calibration of process equipment; and assembly of thermocouples. The company was founded in 1975 and is headquartered in Singapore.

USP Industrial Pte Ltd. engages in manufacturing petrochemical products. It manufactures olefins, aromatics and basic building blocks. The company was founded in June 2014 and is headquartered in Singapore.

USP Properties Pte Ltd. develops real estate property services. The company is headquartered in Singapore.