PC SYSTEMS S.A.

Change of Trading Limits

July 30, 2007 As of July 30, 2007, the shares of the Company PC SYSTEMS S.A. are traded on the ATHEX with a fluctuating ceiling/floor trading limit, as follows: first trading limit is ±10%, which under certain circumstances expands to +20% correspondingly, according to the Decision No 30/24.11.2005 of the ATHEX BoD.