ecoWise Holdings Ltd. is an investment holding company, which engages in the provision of waste management and treatment strategies. It operates through the following segments: Renewable Energy, Resource Recovery, and Integrated Environmental Management Solutions. The Renewable Energy segment involves in the design, building and operation of biomass co-generation systems, generate power for sale, and provision of services related to the applications of heat. The Resource Recovery segment includes process, recycle, and repurpose waste and salvageable materials into environmentally friendly products for industrial applications, such as washed copper slag, compost, and retreaded tires. The Integrated Environmental Management Solutions segment offers resource management and integrated environmental engineering solutions for industrial waste and energy management, including designing, optimizing, engineering, procurement, fabricating, commissioning, managing, and maintenance of waste and energy management facilities. The company was founded by Keng Hua Ong in 1979 and is headquartered in Singapore.