Complex sentence: Between 1925 and 1927 he was a member of the Dortmunder Chamber of Commerce and president of the Rheinisch Westfäli coal syndicate, and in 1926 he created Vereinigte Stahlwerke AG and was its chairman until 1935.
Split into simpler sentences: Between 1925 and 1927 he was a member of the Dortmunder Chamber of Commerce and president of the Rheinisch Westfäli coal syndicate. In 1926 he founded the Vereinigte Stahlwerke AG and was its chairman until 1935.