Release no. 15 - 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 17 November 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: Gilles Pierre Maria 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: 2010-11-16 Market: NASDAQ OMX Nordic Exchange Copenhagen A/S Number: 1,000 Market value DKK: 283,000.00 --------------------------------------------0----------------------------------- Name: Gilles Pierre Maria Reason: Member of Group Management Issuer: Rockwool International A/S ID code/ISIN: B = DK0010219153 Description: Shares Transaction: Sale Trading Date: 2010-11-16 Market: NASDAQ OMX Nordic Exchange Copenhagen A/S Number: 1,000 Market value DKK: 694,500.00 Further information: Group Legal Affairs Rockwool International A/S +45 46 56 03 00