CMS Energy Corporation (CMS Energy) is an energy company operating throught its subsidiaries in United States, primarily in Michigan. The Company’s principal subsidiaries are Consumers Energy Company (Consumers) and CMS Enterprises Company (Enterprises). Consumers is a combination electric and gas utility company that provides electricity and/or natural gas to almost 6.5 million of Michigan’s 10 million residents, and serves customers in all 68 counties of Michigan’s Lower Peninsula. Enterprises, through its subsidiaries and equity investments, is engaged primarily in domestic independent power production. CMS Energy manages its businesses by the nature of services each provides and operates principally in three business segments: electric utility, gas utility, and enterprises.