Summer Energy Holdings, Inc., formerly Castwell Precast Corporation, through Summer Energy, LLC (Summer LLC) is a retail electric provider. Summer LLC procures wholesale energy and resells to commercial and residential customers. On March 27, 2012, Summer LLC became a wholly owned subsidiary of Summer Energy Holdings, Inc. (previously known as Castwell Precast Corporation) through a reverse acquisition transaction, which resulted in the former members of Summer LLC owning approximately 92.3% interest in Summer Energy Holdings, Inc. Summer LLC�s operation is the Company�s sole line of business. Summer LLC is a licensed Retail Electricity Provider (REP) in the State of Texas. In March, 2012, Summer LLC acquired a portfolio of approximately 2,500 primarily short-term residential customers.