In accordance with section 28 a of the Danish Securities Trading Act, Vestas Wind Systems A/S is required to publish information regarding trading in Vestas Wind Systems A/S shares and securities by Executives and persons closely associated with an Executive. The statement is based on a report which Vestas Wind Systems A/S has received from one of the Executives on 10 September 2010. -------------------------------------------------------------------------------- | Name: | Kurt Anker Nielsen | -------------------------------------------------------------------------------- | Position of Executive: | Member of the Board, Vestas Wind Systems | | | A/S | -------------------------------------------------------------------------------- | Related party: | KAN aps | -------------------------------------------------------------------------------- | Issuer: | Vestas Wind Systems A/S | -------------------------------------------------------------------------------- | ID code: | DK0010268606 | -------------------------------------------------------------------------------- | Type of securities: | Shares | -------------------------------------------------------------------------------- | Type of transaction: | Purchase | -------------------------------------------------------------------------------- | Date of trading: | 10 September 2010 | -------------------------------------------------------------------------------- | Place of transaction: | NASDAQ OMX Copenhagen | -------------------------------------------------------------------------------- | Number of securities traded: | 1,000 | -------------------------------------------------------------------------------- | Market value (DKK) of securities | DKK 206,600.00 | | traded: | | -------------------------------------------------------------------------------- Any questions may be addressed to the Executive Management at Vestas Wind Systems A/S, telephone +45 9730 0000.