Copenhagen, 9 September 2010 Missing publication of company announcement by leak NASDAQ OMX Copenhagen has given a reprimand to Vestas Wind Systems A/S, because Vestas did not publish an announcement on the negotiations with a customer about an order in the US as soon as possible after the information was available in the market cf. 3.1.4 in Rules for issuers of shares. The complete decision is available in Decisions & Statements on the following link: http://www.nasdaqomx.com/listingcenter/nordicmarket/surveillance/copenhagen/ In order to ensure more transparency about the decisions from the exchange, the exchange has decided to publish decisions made by the exchange concerning a reprimand or a fine with the identity of the issuer. This is stated in Rules for issuers of shares on NASDAQ OMX Copenhagen, rule 5. For further information, please contact: Tine Rau Schiøtt, Surveillance, tel 33 93 33 66