NASDAQ OMX Copenhagen A/S 10.05.2010 Nikolaj Plads 6 1067 København K No. 14/10 Report on insider transactions with shares issued by Topsil Semiconductor Materials A/S Pursuant to section 28a of the Danish Securities Trading Act we can report the following transactions based on today's reports from insiders: Name: Eivind Dam Jensen Reason: Vice-chairman of the Board of Directors Issuer: Topsil Semiconductor Materials ID-code: DK 0060220812 Type: Preemptive rights Transaction: Sales Market: NASDAQ OMX Copenhagen Trading date: 7 May 2010 Number: 47,955,207 Market value DKK: 4,795,520.70 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.