One in particular, named Wilhelm Hellpern, first became a Belgian, then as Willy Hellpern a British subject, and finally, with a view to obtaining a place on the Board of the Société Française de l'Industrie Chimique, applied for and received naturalization in France. This "Willy" Hellpern was a representative of the Central Gesellschaft für chemische Industrie. Cf.
These were the Chemische Fabrik Greisheim-Elektron of Frankfort A.M., a company which has absorbed a number of smaller manufacturers, and the Chemische Fabriken vormals Weiler-ter Meer, Uerdingen. The position of all these establishments, with one single exception, along the Rhine and its tributaries is well known. Their growth has been illustrated in their own prospectuses.