Information to all exchange and clearing members Lysaker, 19 April 2009 Due to need for more time to verify the weekend's test results, the decision concerning the System upgrades will be postponed to 22.00 CET today. For further information, please contact Nord Pool Clearing ASA, a part of NASDAQ OMX Commodities: Camilla Christiansen, head of market & credit, phone +47 9181 4112 Press contact: Lars Galtung, corporate communications, phone +47 9821 4812