"Union Banking was owned by a Dutch bank, Bank voor Handel en Scheepvaardt N.V., which was “closely affiliated” with the German conglomerate United Steel Works, according to an Oct. 5, 1942, report from the federal Office of Alien Property Custodian. The Dutch bank and the steel firm were part of the business and financial empire of Mr. Thyssen and his brother, Heinrich Thyssen-Bornemisza, the report said."
https://www.washingtontimes.com/news/2003/oct/17/20031017-110534-8149r/