Energy and utility holding company, PPL Corporation, carries out its business through its major subsidiaries: PPL Energy Supply, LLC, an energy company engaged, via subsidiaries, in the generation and marketing of power in certain US markets, and in the delivery of electricity in the UK and Latin America; PPL Electric Utilities Corporation is a regulated public utility, providing electricity delivery services in Pennsylvania; and PPL Montana, LLC, which owns or leases 13 electric generating facilities.