OMX will introduce a new Baltic list structure on May 21, 2007, and to reflect the list changes the “Rules for the Construction and Maintenance of the OMX Baltic All-Share, Sector, Benchmark and Tradable Indexes” will be updated. The main changes from May 21, 2007: - Instead of the Baltic Main and I-list shares, All-share and Baltic sector indexes will be comprised of all eligible Baltic Main and Secondary list shares. In essence, that means that also Baltic Free list shares will be included in the indexes. - Local all-share indexes (OMX Riga All-Share Index, OMX Vilnius All- Share Index and OMX Tallinn All-Share Index) will be included in the Baltic index methodology and OMX Baltic All-share index rules will be applied to the local all-share indexes. Separate rulebooks for the local indexes will be dismissed. - Private issue shares will be removed from OMX Riga All-Share Index: Only the number of publicly listed shares will be used in the index calculations (as in the OMX Baltic All-Share Index). OMX will also expand the concept of the alternative market First North to the Baltic market in 2007. An index will be launched for the First North market in the Baltic countries when the first company is listed. The index will follow the same methodology as the OMX Baltic All-share index. The new version of the index methodology will come into force as of May 21, 2007 and will be renamed to “Rules for the Construction and Maintenance of the OMX Baltic Equity Indexes.” It can be found on the website of the OMX Baltic exchanges www.omxgroup.com/nordicexchange/balticmarket by the following path: Exchange Info -> Indexes -> Index Methodology. For further information concerning this exchange notice please contact Dace Šaltâne, telephone +371 67212431