Cemat — Director's Dealing 2010

May 5, 2010

NASDAQ OMX Copenhagen A/S 05.05.2010 Nikolaj Plads 6 1067 København K No. 11/10

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	Jørgen Bødker
Reason	VP Sales & Marketing
Issuer	Topsil Semiconductor Materials
Trading date	4 May 2010
Market	NASDAQ OMX Copenhagen
ID-code	DK 0060220812
Type	Preemptive rights
Transaction	Purchase
Number	3
Market value DKK	0.55
ID-code	DK 0060221034
Type	New shares
Transaction	Purchase (subscription of new shares)
Number	583,132
Market value DKK	524,818.80

REPORT ON INSIDER TRANSACTIONS

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Name	Jens Christian Nielsen
Reason	CFO
Issuer	Topsil Semiconductor Materials
ID-code	DK 0060221034
Type	New shares
Transaction	Purchase (subscription of new shares)
Trading date	4 May 2010
Market	NASDAQ OMX Copenhagen
Number	25,000
Market value DKK	22,500

Name	Hans Peder Mikkelsen
Reason	Supply Chain Manager
Issuer	Topsil Semiconductor Materials
ID-code	DK 0010271584
Type	Shares
Transaction	Sales
Trading date	4 May 2010
Market	NASDAQ OMX Copenhagen
Number	120,000
Market value DKK	196,800

Topsil Semiconductor Materials A/S

Chairman CEO +45 40 16 14 82 +45 21 70 87 72

Jens Borelli-Kjær Keld Lindegaard Andersen

Please note that this translation is provided for convenience only. The Danish version shall prevail in case of discrepancies.

REPORT ON INSIDER TRANSACTIONS

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