Martin Sisolak becomes Chief Executive Officer at ArcelorMittal Building Solutions Deutschland, succeeding Michael Heine who leaves year-end for new opportunities. Sisolak brings over 25 years of leadership experience in building materials & metal industries, most recently serving as Chief Operating Officer at an international building solutions provider managing strategy & operations across European locations. He holds a chemistry engineering degree from Bratislava Technical University & previously held managing director positions in Germany & Slovakia. Sisolak emphasizes priorities including quality excellence, innovation, customer proximity, & sustainable solutions while committing to strengthen the Sandersdorf-Brehna facility as a responsible employer increasing community engagement.