CERTIFICATE OF COMPLETION
This is to certify that rosanna hope derwinhas successfully completed the Holcim Academy Course for Sustainable Construction in
Concrete Essentials—Basic Properties of Concretea program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Nollaig Forrest
Chief Sustainability Officer Holcim
Holcim Academy Certificate:
Issued February 13, 2025
Valid Certificate ID
28787420cc064171b7ba07537f4105e0