Wikipedia
The Schichau-Werke was a German engineering works and shipyard based in Elbing, formerly part of the German Empire, and which is today the town of Elbląg in northern Poland. It also had a subsidiary shipyard in Danzig (now: Gdańsk). Due to the Soviet conquest Schichau moved the company to Bremerhaven in March 1945, continuing production until 1996.
During World War II prisoners from Poland, France, Netherlands, Lithuania, Latvia, Germany and Hungary were transported from satellite concentration camps of KL Stutthof located east of Gdańsk to work the two 12-hour shifts at Schichau. The prisoners received rations of half-a-litre of watery soup and 250 grams of bread per day; not enough to sustain their ability to work. There was no proper clothing in winter. People died in great numbers as a result of epidemics, workplace accidents, and beatings by the guards. Archival material indicate that such treatment was common already at the end of 1944. Dead bodies were burned in a crematorium but also buried in mass graves at the cemetery in Zaspa and elsewhere.