CERTIFICATE OF COMPLETION
This is to certify that GERASIMOS KERAMIDAShas successfully completed the Holcim Academy Course for Sustainable Construction in
Designing with Concretea program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued September 3, 2025
Valid Certificate ID
655dafe402b448519de56dbf59b49c56