NASDAQ OMX Copenhagen 18.12.2009 Nikolaj Plads 6 1067 København K No. 18/09 Financial calendar 2010 The financial calendar for 2010 has been scheduled as follows: 25.03.2010 Annual Report 28.04.2010 Annual General Meeting 27.05.2010 Quarterly report - Q1 26.08.2010 Interim report - six months 18.11.2010 Quarterly report - Q3 Topsil Semiconductor Materials A/S Jens Borelli-Kjær Keld Lindegaard Andersen Chairman CEO +45 40 16 14 82 +45 21 70 87 72 Please note that this translation is provided for convenience only. The Danish version shall prevail in case of discrepancies.