Management board

Born in 1967, German nationality, married, two children

After studying business administration at Bielefeld University and Saarland University, Guido Kerkhoff worked in corporate accounting at the energy supplier Vereinigte Elektrizitätswerke Westfalen (VEW) AG from 1995 to 1996. From 1996 to 2002, he worked at Bertelsmann AG, including in the group accounting/controlling department, where he headed the department for projects and policy issues.

In 2002, Guido Kerkhoff moved to Deutsche Telekom AG, where he held various management positions in the finance department. In 2009, he joined the Board of Management of Deutsche Telekom AG, where he was initially responsible for the Southern and Eastern Europe regions and, from 2010, for the entire European business.

In April 2011, Guido Kerkhoff took up the position of Member of the Executive Board and CFO at thyssenkrupp AG. From September 2018 to September 2019, he was Chairman of the Executive Board.

Guido Kerkhoff has been a member of the Executive Board of Klöckner & Co SE since September 1, 2020, and Chairman of the Executive Board (CEO) since May 13, 2021.

Since January 2025, Guido Kerkhoff has also been the honorary moderator of the Initiativkreis Ruhr.

Born in 1962, German nationality, married with two children

After studying business administration at Freie Universität Berlin, Universität zu Köln and obtaining his doctorate at Universität zu Köln Dr. Oliver Falk worked from 1992 for four years at Klöckner & Co AG at first in the controlling department then as Head of Central Division.

In 1996, the native of Mainz moved to Klöckner Chemiehandel GmbH as Commercial Director, after its sale he was appointed to the management of Klöckner Stahl- und Metallhandel GmbH in 1998. Later, the task was expanded to include Eastern Europe and then the Netherlands.

At the beginning of 2010, Dr. Oliver Falk moved to Klöckner & Co SE Holding, where he took over the Process Management & IT division until May, 2013. In October 2012, Dr. Oliver Falk became CFO and member of the Management Board of Klöckner & Co Deutschland GmbH. Since January 2017, he has also been Executive Vice President (CFO) of Kloeckner Metals Europe GmbH.

On August 1, 2019, Dr. Oliver Falk has been appointed as member of the Management Board and Chief Financial Officer (CFO) of Klöckner & Co SE.

Born in 1969, American nationality, married with two children

After graduating from Brown University with BA’s in Business Economics and Organizational Behavior and Management, John Ganem started working at LTV Steel in 1991, where he took over responsibility for direct automotive manufacturers and tier 1 suppliers as account manager.

In 1996 he joined Macsteel International USA where he held a leading management position as Vice-President being responsible for P&L and overall management of the North American Flat Rolled Trading Division until the end of 2002. Afterwards John Ganem became Vice President, USA Carbon Purchasing, with Samuel, Son & Company, where he was charged with developing USA based supply relationships.

In 2006 he returned to Macsteel Service Centers USA, which was acquired by Klöckner & Co in 2011. As Executive Vice-President for Kloeckner Metals Corporation John Ganem was accountable for all purchasing activities across the enterprise including long-term strategic planning, supplier relationships, supply chain strategy, inventory management, volume incentive agreements, global sourcing, price competitiveness, process control policies, and regulatory compliances. John Ganem was named CEO of Kloeckner Metals Corporation on January 1, 2018 and led a significant organizational transformation focused on improved operational efficiencies and effectiveness. Since 2015 he is an elected member to the Kloeckner Metals Corporation Board of Directors.

As of August 1, 2019, John Ganem has been appointed as Member of the Management Board and CEO Americas of Klöckner & Co SE.