Renewable natural gas Renewable natural gas Renewable Natural Gas (RNG), also known as Sustainable Natural Gas (SNG) or biomethane, is a biogas which has been upgraded to a quality similar to fossil natural gas and having a methane concentration of 90% or greater. A biogas is a gaseous form of methane obtained from biomass. By upgrading the quality to that of natural gas, it becomes possible to distribute the gas to customers via the existing gas grid within existing appliances. Renewable natural gas is a subset of synthetic natural gas or substitute natural gas (SNG). Renewable natural gas can be produced and distributed
China Natural Gas gas retailing company to be publicly traded in the United States. The company is building a local government supported liquefied natural gas processing and distribution plant in Jingbian, Shaanxi province, which was scheduled to be completed in December 2009. China Natural Gas China Natural Gas Inc. is a Chinese energy company that, through its subsidiaries, is engaged in the distribution and sale of natural gas and gasoline to commercial, residential and industrial customers in the Xi'an area and the Shaanxi province of the People's Republic of China. The company also engages in the construction of pipeline networks. It offers natural