CERTIFICATE OF COMPLETION
This is to certify that Claire Zieglerhas successfully completed the Holcim Academy Course for Sustainable Construction in
Circular Construction and Concrete Coursea program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued April 1, 2025
Valid Certificate ID
4885a960d37749019e326ab4ebd8bfcf