Release no. 10 - 2009 Report on the first half 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 27 August 2009 Report on the first half of 2009 for Rockwool International A/S Today the Board of Directors of Rockwool International A/S has approved the following report on the first half of 2009. Highlights * Sales in the first half year decreased by 21% compared to the same period in 2008 or 17% based on comparable exchange rates. * EBIT in the first half of 2009 amounts to DKK 177 million which is a decrease of DKK 596 million compared to the same period in 2008. * An additional cost reduction programme has been initiated which will generate DKK 250 million savings when fully executed mid 2010. Restructuring and reorganisation costs are expected to reduce the net result by DKK 85 million in 2009. * As the market is deteriorating more than anticipated, the total net sales for the year 2009 are now expected to decrease by 22% (or 18% based on comparable exchange rates). * The net result after minority interests for 2009 is now expected to be DKK 200 million including restructuring and reorganisation costs. * Capital expenditure is now expected to reach DKK 1,000 million excluding acquisitions. Further information: Gilles Maria, Chief Financial Officer