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Targa Pipeline Partners, L.P. (the Partnership), formerly Atlas Pipeline Partners, L.P., was formed by its parent, Targa Resources Corp., to own, operate, acquire and develop a diversified portfolio of complementary midstream energy assets. The Partnership is a provider of midstream natural gas, natural gas liquids (NGL), terminaling and crude oil gathering services in the United States. The Partnership is engaged in the business of gathering, compressing, treating, processing and selling natural gas; storing, fractionating, treating, transporting and selling NGLs and NGL products; gathering, storing and terminaling crude oil; and storing, terminaling and selling refined petroleum products.

BioRem Inc., a clean technology engineering company, designs, manufactures, distributes, and sells air pollution control systems that are used to eliminate odors, volatile organic compounds (VOCs), and hazardous air pollutants (HAPs). It offers biofilters for the removal of odors, H2S, VOCs, and HAPs; and biotrickling filters for applications of high levels of H2S or other water-soluble VOCs. The company also provides multi-stage systems to remove odors from various municipal/urban wastewater treatment processes; biogas desulfurization systems; dry scrubber adsorption systems; and cannabis odor control systems. In addition, it offers biological processes and testing services; media sampling and analysis; system review and inspections; and media replacements and spare parts. The company operates in Canada, the United States, China, and internationally. BioRem Inc. was founded in 1990 and is headquartered in Puslinch, Canada.

The iPath Series B Carbon Exchange-Traded Notes (GRN) is an exchange-traded fund that is based on the Barclays Global Carbon II TR USD index. The fund is an ETN that tracks a liquidity-weighted index of carbon-related credit plans. The index holds December futures contracts on EUAs and CERs. GRN was launched on Sep 10, 2019 and is issued by iPath.

Questor Technology Inc., an environmental emissions reduction technology company, designs, manufactures, and services waste gas combustion systems in Canada and the United States. The company rents waste gas incineration systems. It offers its solutions for various oil and gas projects, as well as for landfill biogas, syngas, waste engine exhaust, geothermal and solar, and cement plant waste heat. The company was formerly known as Interglobe Gas Technology Inc. and changed its name to Questor Technology Inc. in September 1995. Questor Technology Inc. was founded in 1994 and is headquartered in Calgary, Canada.