Home About Us Executive Committee Executive Committee Meet the Holcim Australia management team. George Agriogiannis Chief Executive Officer (CEO) Jessica Blomfield General Counsel & Company Secretary Scott Buchanan Executive General Manager (EGM) - Aggregates Guido Dewilde Executive General Manager (EGM) - Humes Joe Di Mento Chief Financial Officer (CFO) Helen Jones Executive General Manager (EGM) - People, Culture and Communications Greg Price Executive General Manager (EGM) - Concrete and Major Projects Brad Tallon Executive General Manager (EGM) - IT, Technical and Engineering