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Green Build Technology Ltd is an investment holding company. The company operates in four segments: Insulation, which constructs and operates external insulation projects; Underground Utility Tunnel, which constructs and operates underground utility tunnels for utility lines such as electricity, gas supply pipes, and water supply pipes and communications lines such as fiber optics, television, and telephone cables; Project Management segment provides consultation services; Materials Trading segment is into trading of green technology materials, and Others segment is into investment holding. The company derives its revenue from the PRC.