Nord Pool has made certain amendments to the Rulebook. Lysaker, 15 February 2007 The trade error schedule has been amended to simplify the schedule. Trading rules have been amended/added to clarify erroneous trades involving hidden volume orders and standard combination orders. Further, Nord Pool has included a paragraph which reserves Nord Pool the right to charge a complaint fee for any request made to the market place service (MPS) to cancel erroneous exchange trades in ETS. These amendments have been discussed in Nord Pool's product group of the financial market. Please see the following sections in the trading rules for detailed information: Trading appendix 1, section 3.1 Trading rules 8.2.6 c, 8.6.5 b, 8.6.9 section 8.6.10 The changes in trading rules will be in effect from Thursday 1 March 2007. The new rules are available on http://www.nordpool.com/ www.nordpool.com For further information, please contact Nord Pool ASA: Marianne W. Jenssen, senior vice president, financial market, phone: +47 67 52 80 76 Georg Aasen, head of market place, financial market, phone: +47 67 52 80 24 Erik Thrane, general counsel, phone: +47 67 52 80 89