Release no. 4 - 2010 To NASDAQ OMX Nordic Exchange Copenhagen A/S This is a translation of the Danish version. Only the Danish version is legally binding. ROCKWOOL INTERNATIONAL A/S Hovedgaden 584, Entrance C DK�2640 Hedehusene Phone: +45 4656 0300 www.rockwool.com Danish CVR no: 5487941510 March 2010 Annual Report 2009. Review of the year 2009 * Sales declined by 18.5% and reached DKK 11,168 million. * EBITDA fell by 35.6% and reached DKK 1,529 million. * Profit after minority interests declined by 67.9% and totalled DKK 322 million. * This year's investments totalled DKK 1,170 million. * Cash flow from operations amounted to DKK 1,950 million, up 29.4% on 2008. * For 2010, we expect sales decline of 5-10% and a profit after minority interests of around DKK 300 million. The investment level excluding acquisitions will be around DKK 1,000 million. * The proposed dividend is maintained at DKK 9.60 per share. Further information: Gilles Maria CFO Rockwool International A/S +45 46 56 03 00