MEMC has reached a definitive agreement to acquire SunEdison LLC. The acquisition is expected to close by the end of 2009, subject to closing conditions and receipt of regulatory approvals. The agreement calls for US $200 million to be paid at closing to SunEdison security holders, which will be paid 70% in cash and 30% in MEMC stock.

SunEdison will continue to operate with the SunEdison name, as a subsidiary of MEMC. Carlos Domenech will continue to lead SunEdison as well.