Rentech, Inc. provides technologies that utilize domestic resources to produce ultra-clean synthetic fuels and chemicals. It licenses its proprietary derivative of the Fischer-Tropsch process, called Rentech Process, which converts synthesis gas derived from coal, petroleum coke, biomass, natural gas, or municipal solid waste into liquid hydrocarbon products, including ultra clean diesel fuel, jet fuel, naphtha, specialty chemicals, and other fuel products. The company also manufactures anhydrous ammonia, UAN, nitric acid, carbon dioxide, and granular and liquid urea. In addition, it has a joint development agreement with Peabody Energy Corporation for the co-development of CTL projects that convert coal into ultra-clean transportation fuels using the Rentech Process. The company was founded in 1980 and is based in Los Angeles, California.