Information to all exchange and clearing members Lysaker, 16 April 2009 Nord Pool will implement system upgrades to trading and clearing applications 20 April 2009. The members will start to use the upgraded applications on Monday 20 April. The system upgrade will take place 18-19 April at Nord Pool/NASDAQ OMX Commodities, Lysaker/Stockholm. - As our earlier announced member readiness procedures describe, members are asked toperform the following system verification steps on Sunday 19 April 10.00-12.00 CET. The objective is to verify system connectivity and user accounts in the upgraded system. Detailed instructions on how to perform the verification are found on this link: http://www.nordpool.com/en/asa/Markets/System-upgrades/Project-launch/ www.nordpool.com/en/asa/Markets/System-upgrades/Project-launch/ - The results of the members' connectivity tests must be reported to Nord Pool via a webbased form by 12.00 on Sunday 19 April. Please report your results in the report questionnaire http://www.nordpool.com/en/asa/Markets/System-upgrades/Project-launch/ www.nordpool.com/en/asa/Markets/System-upgrades/Project-launch/ - Members must keep the current front-end applications, i.e., CLICK Trade XT v.1.03 application and CDA operational until further notice. In case of roll back, there will be no changes for the market participants regarding use of trading and clearing systems on Monday 20 April. - A “go, no-go” decision will be communicated 20.00 CET on Sunday 19 April in an exchange information, published to the members and on the web. We kindly request all exchange and clearing members to start their trading and clearing applications prior to market opening Monday morning. For further information, please contact Nord Pool/NASDAQ OMX Commodities: Camilla Christiansen, head of market & credit, Nord Pool Clearing ASA, part of NASDAQ OMX Commodities, phone +47 9181 4112 Press contact: Lars Galtung, corporate communications, phone +47 9821 4812