Mr. Weig has working for Heidelberg Materials AG since December 2012, initially as Treasury Manager and since March 2015 as Director of Group Treasury. Since November 2018, he is also Director for Group Insurance & Corporate Risk, which works intensively on climate risks. Since June 2022 he is member of the Sustainable Finance Advisory Board of the German government. Before Heidelberg Materials AG, he worked in various positions at multinational banks.