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BQE Water Inc., a water treatment company, provides wastewater management and treatment solutions to the mining and metallurgical industry in Canada, the United States, Latin America, 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 remove 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 process water, as well as onsite field testing to remove sulphate from wastewater; selenium removal technology, including Selen-IX that removes selenium from mining wastewater, as well as on-site field testing to demonstrate selenium removal from mine impacted waters; and cyanide treatment technologies, such as SART to remove the metallurgical interference of cyanide-soluble metals and to recover and recycle cyanide in gold processing. 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.

Nuverra Environmental Solutions, Inc. engages in the development and ongoing production of oil and natural gas from shale formations. It operates through the following segments: Rocky Mountain, Northeast, Southern, and Corporate and Other. The Rocky Mountain segment includes the Bakken shale area. The Northeast segment is comprised of the Marcellus and Utica shale areas. The Southern segment covers the Haynesville shale area. The Corporate and Other segment includes certain corporate costs and certain other corporate assets. The company was founded on May 29, 2007 and is headquartered in Houston, TX.

CHAR Technologies Ltd., a cleantech development and services company, engages in the conversion of organic waste into renewable gases and biocarbon products. It offers SulfaCHAR, an activated charcoal; CleanFyre, a solid biofuel; and high temperature pyrolysis technology, which transform organic waste streams to renewable outputs, as well as converting woody materials. The company also provides custom equipment for industrial water treatment; and services in environmental compliance, environmental management, site investigation and remediation; and engineering and resource efficiency services. CHAR Technologies Ltd. was founded in 2011 and is headquartered in Toronto, Canada.