CERTIFICATE OF COMPLETION
This is to certify that Gürkan Erkalhas successfully completed the Holcim Academy Course for Sustainable Construction in
Journey to a Sustainable Built Environment: A Roundtable Discussiona program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued August 27, 2025
Valid Certificate ID
b880b20f63d444b68f5e47da5dfcda5c