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The executive determines our corporate targets, strategic alignment and company philosophy and manages the businesses of our company in accordance with common responsibility.

The goal is ever elusive. Gratification is to be found in commitment and not in achievement. Full commitment means full success.

Mahatma Gandhi

Peter Overlack
peter.overlack( at )

Peter Overlack has managed the company since 1988 - in the third generation after his father and grandfather. Before joining the then Overlack, the trained banker and business graduate was assistant to the CFO of a large German stock corporation. Since the change of name to Overlack AG in 2004 he has been a member of the board of directors.

Patrick Barthels
patrick.barthels( at )

Patrick Barthels joined OQEMA Group in 2016 as Managing Director of OQEMA Contract and Group Director Organika. From January 2020 he is part of the Executive Board and as CSO he is responsible for sales and purchasing. Various country companies/hubs and the European cross-divisional business functions (Organics, Inorganics, KAM and Specialties) will report to him.