Notified on 2 August 2010, this merger operation consists of the acquisition by the undertaking Stericycle, Inc. ("STERICYCLE"), through the special purpose entity Stericycle Europe SARL ("STERICYCLE EUROPE"), of exclusive control of the companies Ambiface & Buffer SGPS Lda ("AMBIFACE & BUFFER") and Ambiface Investimentos SGPS SA ("AMBIFACE INVESTIMENTOS"), by means of the acquisition of 95% of the share capital of Ambiface Investimentos and 50% of that of Ambiface & Buffer.