Release no. 07 - 2009 Report on the first quarter of 2009 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 25 May 2009 Report on the first quarter of 2009 for Rockwool International A/S Today the Board of Rockwool International A/S has approved the following report on the first quarter of 2009. Highlights * Sales in the first quarter decreased by 18% compared to first quarter 2008 (14% based on comparable exchange rates). * EBIT in the first quarter amounted to DKK 68 million which is a decrease of DKK 269 million compared to first quarter 2008. * The 2009 expectations for the net result after minority interests remain at DKK 400 million, still with a high uncertainty. Capital expenditure at DKK 900 million remains unchanged. Net sales - calculated with the April exchange rate levels - are now expected to decrease by 18% (or 14% based on comparable exchange rates). Further information: Gilles Maria, Chief Financial Officer