Credit Suisse Group AG, Zurich reports a shareholding in Adecco S.A. of 4.92% (0.54% registered shares)

Corporate news announcement processed and transmitted by Hugin AS. The issuer is solely responsible for the content of this announcement. ---------------------------------------------------------------------- -------------- Zurich, Switzerland, June 8, 2009: Pursuant to art. 9 and 17 of the Stock Exchange Ordinance-FBC, Adecco S.A. has received the following notification: As of May 28, 2009, a group consisting of Credit Suisse Group AG, Zurich, Switzerland and its subsidiaries is holding 4.92% as purchase positions of the share capital of the company in shares and derivatives of which 0.54% are equity (registered shares). For further information please refer to the attached PDF document. Contact: Investor Relations: Tel: +41 44 878 89 89 e-Mail: --- End of Message --- Adecco SA Sagereistrasse 10 Glattbrugg Switzerland WKN: 922031; ISIN: CH0012138605; Index: SLCI, SMI, SPI, SMIEXP; Listed: Main Market in SIX Swiss Exchange;