Allard Castelein is stepping down as ceo of the Port of Rotterdam Authority this summer after nearly a decade in service. Boudewijn Siemons, currently chief operating officer (coo), will become interim ceo, effective July 15. 


Boudewijn Siemons.

As coo, Siemons is responsible for infrastructure and maritime affairs. He will combine both positions until a new ceo has been appointed. Vivienne de Leeuw’s term as chief financial officer (cfo), meanwhile, has been extended by four years. They will serve as the port authority’s executive board. 

Miriam Maes, chair of the supervisory board, explained: “The process of finding a new ceo is still in progress. It will not be completed before July 15, which is when Allard Castelein’s term of office ends. In the meantime, with the appointment of an interim ceo and the extension of the cfo’s term of office, we are safeguarding management continuity.”