Rockwool

Transaction in Own Shares • Nov 4, 2020

Company announcement for ROCKWOOL International A/S Release no. 59 – 2020 to Nasdaq Copenhagen

4 November 2020

ROCKWOOL International A/S – transactions in connection with share buy-back programme

As mentioned in announcement no. 2/2020, ROCKWOOL International A/S has initiated a share buy-back programme which will run from 6 February 2020 until 5 February 2021. During this period, the Company will buy own shares for up to a maximum of EUR 64 million under the programme.

The programme is implemented in accordance with EU Commission Regulation No 596/2014 of 16 April 2014 and EU Commission Delegated Regulation No 2016/1052 of 8 March 2016, which together constitute the "Safe Harbour" regulation.

The following transactions have been executed during the period 28 October – 3 November 2020:

Date	Number of A shares	Average purchase price A shares (DKK)	Aggregate amount, A shares (DKK)
[Accumulated, last	18,512		26,405,350
announcement]
28 October 2020
29 October 2020
30 October 2020
2 November 2020
3 November 2020
Accumulated under the	18,512		26,405,350
programme (A shares)

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	253,655		391,423,515
announcement]
28 October 2020	500	2,421.97	1,210,985
29 October 2020	400	2,461.01	984,404
30 October 2020	350	2,505.07	876,775
2 November 2020	300	2,505.59	751,677
3 November 2020	300	2,628.25	788,475
Accumulated under the	255,505		396,035,830
programme (B shares)

In addition, the Company has in accordance with announcement no. 48/2020 completed the purchase of 57,557 A Shares for a total of EUR 16 million from the ROCKWOOL Foundation.

ROCKWOOL International A/S Hovedgaden 584, DK-2640 Hedehusene, Denmark T (+45) 46 56 03 00 E info@rockwool.com

With the transactions stated above, ROCKWOOL International A/S owns 76,069 A shares and 313,833 B shares corresponding to 1.77 percent of the Company's total share capital.

An overview showing the transaction data for the period 28 October – 3 November 2020 is enclosed.

Further information: Thomas Harder

Director, Group Treasury & Investor Relations ROCKWOOL International A/S +45 46 55 86 77