Colex Holdings Ltd. operates as an investment holding company, which engages in the provision of waste management and contract cleaning services. It operates through the following segments: Waste Disposal and Contract Cleaning. The Waste Disposal segment provides services for domestic waste, commercial waste and industrial waste, sale and rental of equipment to customers and repair of waste compactors. The Contract Cleaning segment engages in the provision of cleaning services. The company was founded on December 31, 1971 and is headquartered in Singapore.