Contact Persons Management Tina Steuerwald B.A. Managing Director Phone: +49 631 34113 0 Email: TSteuerwald@gpr.de Horst Peschla Dipl.-Geol. Managing Director Phone: +49 631 34113 0 Email: HPeschla@gpr.de Michael Drees Dipl.-Ing. Authorized Signatory Phone: +49 631 34113 0 Email: MDrees@gpr.de Christoph Rochmes Dipl.-Geol. Authorized Signatory Phone: +49 631 34113 0 Email: CRochmes@gpr.de Assistant to the Management / Human Resources department Sandra Ben Amara Phone: +49 631 34113 0 Email: SBenAmara@gpr.de
