"BAYER, www.bayer.com" . "BAYER is a chemical and pharmaceutical company. During the Second World War foreign and forced laborers from the occupied countries of Europe were brought to work in Leverkusen, Dormagen, Elberfeld and Uerdingen - and throughout German industry as a whole - to maintain output levels. At times during the war, these laborers accounted for up to one third of the workforce. Concentration camp prisoners were not employed in the Lower Rhine sites. BAYER produced Cyklon B."@eng . "BAYER"@eng . .