Release no. 5 - 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: 54879415 Page 1/2 19 March 2010 Insiders trading in Rockwool shares Report of transactions with shares and related securities of Rockwool International A/S by persons discharging managerial responsibilities and persons/companies closely associated with these. Pursuant to section 28a of the Danish Act on Securities Trading, Rockwool International A/S shall make public transactions with shares and related securities of Rockwool International A/S by persons discharging managerial responsibilities and persons/companies closely associated with these. Name: Klaus Franz Reason: Member of Group Management Issuer: Rockwool International A/S ID code/ISIN: B = DK0010219153 Description: Shares Transaction: Purchase in connection with exercise of Share Options Trading Date: 2010-03-18 Market: NASDAQ OMX Nordic Exchange Copenhagen A/S Number: 2,000 Market value DKK: 566,000.00 --------------------------------------0------------------------------------- Name: Klaus Franz Reason: Member of Group Management Issuer: Rockwool International A/S ID code/ISIN: B = DK0010219153 Description: Shares Transaction: Sale Trading Date: 2010-03-18 Market: NASDAQ OMX Nordic Exchange Copenhagen A/S Number: 2,000 Market value DKK: 1,150,000.00 Further information: Group Legal Affairs Rockwool International A/S +45 46 56 03 00