The Forrest business empire has parted ways with the chief executive of its hospitality and lifestyle arm Z1Z, and Mincor Resources boss Gabrielle Iwanow is also packing her bags.

The departure of international hotelier Joost Heymeijer at Z1Z adds to a growing list of top executives to have left both Forrest-controlled Fortescue Metals Group and the family’s private-owned businesses controlled by Tattarang.