Problem description:
What country/region is HGL short for?
Analysis:
HGL group was founded in 1986, and has long been the undertaker of major national environmental protection projects in the United States. The members of the group include Hydrological Engineering Company, Black Environment Company, EQ Environmental Protection Equipment Company, JEOTI Water Treatment Equipment Company, Shanxi Coal Engineering Company and Model Oil-water Treatment Company. Over the years, the Group has been providing one-stop engineering design, management and technical consulting services for international environmental pollution problems, and providing complete sets of equipment for industrial sewage treatment, urban sewage treatment, groundwater purification, surface water purification and drinking water treatment.