[1] Following his military service he studied political economy for a time before entering the sales department at Hoechst, rising quickly through the ranks at the company.

[1] In 1926 he went to Leverkusen to being training to ultimately succeed his father at the IG Farben pharmaceuticals and pesticides department and also took a post on the supervisory board of Degesch.

[1] Although his progress has been endorsed by his father Mann had also garnered a reputation for his strong knowledge of the international pharmaceutical market as well as his ability to negotiate good deals for IG Farben.

[7] He thus was also aware that the consumption rate at Auschwitz was ten times the level of other similar sized camps, but he claimed that he never considered any connection between this fact and the Holocaust before later still arguing that he had barely paid any attention to the company accounts in the first place.

[8] It was also Mann who personally agreed that IG Farben would finance the research work of Josef Mengele at Auschwitz, which focused on genetics and involved several experiments on sets of identical twins held in the camps.

And on 17 February 1999, a lawsuit was filed in U.S. District on behalf of Eva Mozes Kor, one of 180 surviving twin children (out of 1,500) who had been subjected to medical experiments at Auschwitz.