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A ROCKWOOL Highlights Sales in Q1 2021 reached 671 MEUR , a growth of 6.0 percent in local currencies compared to Q1 2020. With a negative currency translation impact of 2.7 percentage points , sales growth in reported figures totalled 3.3 percent . Solid first quarter performance , double - digit growth outlook for 2021 EBITDA in Q1 2021 reached 139 MEUR , with a 20.7 percent EBITDA margin , up 1.5 percentage points from Q1 2020 . EBIT in Q1 2021 increased 12 percent to 90 MEUR , with a 13.3 percent EBIT margin , up 1.0 percentage point from Q1 2020 . Investments excluding acquisitions and grants reached 82 MEUR in the quarter , down 33 MEUR compared to last year . Annualised return on invested capital reached 16.9 percent compared to 20.2 percent last year , a decrease due to an increase in factory investments . Outlook 2021 Growth in net sales of 10-12 percent in local currencies . EBIT margin around 12 percent . Investment level around 370 MEUR excluding acquisitions . First quarter report of 2021 for ROCKWOOL International A / S Release no . 13 - 2021 to Nasdaq Copenhagen ROLEX Conference call ROCKWOOL Group will host an earnings call on 20 May 2021 at 11.00 CEST . To attend the conference call dial +45 35445577 , +44 3333000804 or +1 6319131422. Passcode 56078017 # . The call will be transmitted live on www.rockwool.com/group/ #RACEFOR THEFUTURE EXA ORACLE NEO A ROCKWOOL 19 May 2021 A ROCKWOOL " Construction activity in most markets has recovered , and we expect double - digit top - line growth for 2021. Overall , we are satisfied with the solid sales and profitability growth we achieved in the first quarter . The top- and bottom - lines are above first quarter results from both 2020 and 2019 . Sales grew well in North America , Russia , China , and most of Western Europe . A clear focus on operational efficiency combined with a manageable impact of higher input costs contributed to the good profitability in both segments , with the Systems segment performing especially well " . CEO Jens Birgersson 1/12