Choo Huat Toh

Ultro Technologies Ltd. engages in the sourcing, supplying, trading, and distribution of natural resources and minerals. The company used to manufacture and distribute electronics but now focuses on its business venture such as its Indonesian thermal coal trading and mining venture. The company was founded by Lim Ee Chuan on February 6, 1987 and is headquartered in Singapore

Part of Ley Choon Group Holdings Ltd., Ley Choon Constructions & Engineering Pte Ltd. provides construction and maintenance, pipeline rehabilitation, and waste recycling services. The private company is based in Singapore, Singapore. Ley Choon Constructions & Engineering was acquired by Ultro Technologies Ltd. on July 25, 2012 for $78.96 million.

Part of Ley Choon Group Holdings Ltd., Teacly (S) Pte Ltd. provides cable laying services. The private company is based in Singapore, Singapore.

Ley Choon Development Pte Ltd. provides road and sewer line construction services. The company is headquartered in Singapore.

Part of Ley Choon Group Holdings Ltd., Ley Choon EWC Sdn. Bhd. provides road and sewer construction services.

Part of Ley Choon Group Holdings Ltd., Multiform Developments & Construction Pte Ltd. is a Singaporean company that provides road construction services. The private company is based in Singapore, Singapore.

Part of Amcorp Global Ltd., Ley Choon (Yantai) Eco Green Construction Materials Ltd. distributes construction materials. The private company is based in Singapore, Singapore.

Part of Ley Choon Group Holdings Ltd., Pan Alliance Technology International Pte Ltd. provides pipe laying services. The private company is based in Singapore, Singapore.