Vestas Wind Systems — Major Shareholding Notification 2010

Apr 1, 2010

Company announcement from Vestas Wind Systems A/S

Randers, 1 April 2010 Company announcement No. 14/2010 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 31 March 2010 has increased their holding of Vestas shares from 10,036,082 (ref. company announcement No. 12/2010 of 26 March 2010) to 10,196,683 shares (5.01 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