Date: Wednesday, April 1, 2026

Re: ROCKWOOL CANADA PRICE INCREASE – Effective: July 1, 2026

To Our Valued Customers,

Please be advised that effective Wednesday, July 1, 2026, ROCKWOOL will be increasing prices to our Canadian customers on the following products:

• AFB® 8%
• AFB® evo 8%
• Cavityrock® 8%
• Comfortbatt® 8%
• Comfortboard® 8%
• Curtainrock® 8%
• Frontrock® 8%
• Plus™ MB 8%
• Rockboard® 8%
• ROXUL SAFE® / 45 / 55 / 65 8%
• Safe ‘n’ Sound 8%
• Toprock® 8%

The above increase will apply to all orders shipped on or after Wednesday, July 1, 2026, regardless of the date of order placement.