Siniša Košćak is the CEO at COLAS, overseeing operations for three companies in Croatia and Slovenia. Previously, they served as Aggregates and RMX Director at Holcim from 2010 to 2012, where they managed production and compliance. Siniša's experience also includes roles as Project Manager and Board Member at IGM Lepoglava d.d. from 1991 to 1996. They hold an Executive MBA from IEDC - Bled School of Management and are currently pursuing further education in civil engineering at the University of Zagreb.
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