CMS Energy Corporation (CMS Energy) is an energy company operating primarily in Michigan. CMS Energy is the parent holding company of several subsidiaries, including Consumers Energy Company (Consumers) and CMS Enterprises Company (CMS Enterprises). Consumers is an electric and gas utility, and CMS Enterprises, primarily a domestic independent power producer. Consumers serves individuals and businesses operating in the alternative energy, automotive, chemical, metal, and food products industries, as well as a diversified group of other industries. CMS Enterprises, through its subsidiaries and equity investments, is engaged primarily in independent power production and owns power generation facilities fueled mostly by natural gas and biomass. CMS Energy operates in three business segments: electric utility, gas utility and enterprises, its non-utility operations and investments.