The Blechhammer () area was the location of Nazi Germany chemical plants, prisoner of war (POW) camps, and forced labor camps (). Labor camp prisoners began arriving as early as June 17, 1942, and in July 1944, 400-500 men were transferred from the Terezin family camp to Blechhammer. The mobile “pocket furnace” () crematorium was at Sławięcice.) and Bau und Arbeits Battalion (BAB, ) 21 was a mile from the Blechhammer oil plants and was not far from Katowitz and Breslau. Blechhammer synthetic oil production began April 1 with 4000 prisoners.[1]