Dr. Köfler is responsible for the entire production area comprising all operations from iron production through rolling to coating. He began his career in the hot metal department at Hüttenwerke Krupp Mannesmann GmbH (HKM) in 1994. He held various other positions at HKM until 2013, including head of burden preparation, head of continuous rounds casting, head of quality and order management and head of crude steel production. He began working for thyssenkrupp Steel Europe AG as head of steel production in 2013 and in January 2016 took over as head of rolling and coating at the Beeckerwerth site. Dr. Arnd Köfler has been a member of the executive board of thyssenkrupp Steel Europe AG since January 1, 2017 until June 2024. As CTO, he was responsible for the green transformation of thyssenkrupp Steel Europe and the development and implementation of an ESG and sustainability strategy, among other things. Dr. Arnd Köfler studied mechanical engineering at Ruhr-University Bochum before gaining a PhD in metallurgy at RWTH Aachen University in 1999.