MADRID (Standard&Poor's) May 26, 2006—Standard&Poor's Ratings Services said today that it assigned its preliminary credit ratings to the €925 million mortgage-backed floating-rate notes to be issued by IM PASTOR 4, Fondo de Titulización de Activos, an SPE (see list below). The originator is Banco Pastor, S.A., which is ranked among the top 20 banks in Spain. It enjoys an outstanding regional presence in its original home market, Galicia, and this is one of its main business strengths. Its primary business is SME lending and retail banking. With this transaction, Banco Pastor will securitize part of its growing residential mortgage-lending book. The loans, originated across Spain, feature a first-ranking security and are for the purpose of property