CERTIFICATE OF COMPLETION
This is to certify that Alfredo Alonso Barragán Subíahas successfully completed the Holcim Academy Course for Sustainable Construction in
Introducción a la construcción sosteniblea program offered by Holcim.
Miljan Gutovic
Chief Executive Officer Holcim
Carmen Diaz
Chief People and Sustainability Officer Holcim
Holcim Academy Certificate:
Issued September 15, 2026
Valid Certificate ID
81294ea6aa1e4ab4b35a7e80a5009a4e