BQE Water Inc., a water treatment company, provides wastewater treatment services to the mining and metallurgical industry in Canada, the United States, Mexico, Chile, China, and internationally. It offers water treatment solutions for mine drainage, run-off, waste rock seepage, tailings water, groundwater, and lime plant influent and/or effluent streams for treating metals, sulphate, selenium, nitrate, ammonia, and cyanide in the mining sector; smelting and refining services for treating metals and sulphate; and hydrometallurgy services for the treatment of metals, cyanide, and acids. The company's metal recovery and removal technologies include BioSulphide and ChemSulphide technologies, which use biological or chemical sources of sulphide to precipitate dissolved metals from mining wastewater; and Met-IX technology that treats wastewater. It also offers sulphate technologies, such as Sulf-IX and Sulf-IXC, which removes sulphate and hardness from wastewater; selenium removal technology, including Selen-IX that removes selenium from mining wastewater; and cyanide treatment technologies, such as SART, a process technology to remove the metallurgical interference of cyanide-soluble metals in gold cyanidation. The company was formerly known as BioteQ Environmental Technologies Inc. and changed its name to BQE Water Inc. in March 2017. BQE Water Inc. was founded in 1997 and is headquartered in Vancouver, Canada.