CERTIFICATE OF COMPLETION
This is to certify that Jason Groenewaldhas 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
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued September 9, 2025
Valid Certificate ID
bff0ba6d66c14a77a885ef8b19a8c609