First-quarter 2024 Sales:Sequential Improvement in Volumes

• Sequential improvement in volumes in Q1 2024 at comparable working days and positive price-cost spread • Decisive strategic steps reinforcing the Group's worldwide leadership in light and sustainable construction, with targeted and disciplined capital allocation: Geographically, with the announcement of the acquisitions of CSR Limited in Australia and Bailey in Canada In construction chemicals, with six acquisitions announced or closed since the start of the year • Confidence in the 2024 outlook: double-digit operating margin for the fourth consecutive year