CERTIFICATE OF COMPLETION
This is to certify that Brayane Ndondji Njounanghas successfully completed the Holcim Academy Course for Sustainable Construction in
L'avenir des villes régénérativesa program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued September 21, 2026
Valid Certificate ID
f28e48dd114b4d4db6040df4642ca0da