Price Monitoring Extension

Johnson Service Group PLC
25 April 2008

A Price Monitoring Extension has been activated in this security.

A Price Monitoring Extension is activated when the auction matching process would result in an auction price that is a 
pre-determined percentage above or below the base price.  The auction call period is extended for 5 minutes.

For details of how base prices are set for each market, please refer to the Guide to Trading Service at 
www.londonstockexchange.com