Vestas Wind Systems — Major Shareholding Notification 2010

Aug 31, 2010

Company announcement from Vestas Wind Systems A/S

Randers, 31 August 2010 Company announcement No. 30/2010 Page 1 of 1

Major shareholder announcement – BlackRock, Inc.

Vestas has received information from BlackRock Investment Management (UK) Limited, 33 King William Street, London EC4R 9AS, UK that BlackRock, Inc. as per 25 August 2010 has reduced their holding of Vestas shares from 10,187,787 (ref. company announcement No. 24/2010 of 11 June 2010) to 9,802,374 shares (4.81 per cent) and as per 26 August 2010 again has increased their holding of Vestas shares to 10,327,971 (5.07 per cent).

Yours sincerely Vestas Wind Systems A/S

Ditlev Engel President and CEO

Contact details: Vestas Wind Systems A/S, Denmark Peter W Kruse, Senior Vice President, Group Communications Telephone +45 9730 0000