The SS Ostindustrie GmbH ("East Industry", abbreviated as Osti) was one of many industrial projects set up by the Nazi German Schutzstaffel (SS) using Jewish and Polish forced labor during World War II. Founded in March 1943 in German-occupied Poland, Osti operated confiscated Jewish and Polish prewar industrial enterprises, including foundries, textile plants, quarries and glassworks. Osti was headed by SS-Obersturmführer Max Horn, who was subordinated directly to Obergruppenführer Oswald Pohl of the SS-Wirtschafts-Verwaltungshauptamt (SS-WVHA), the SS economic administration department. At its height, some 16,000 Jews and 1,000 Poles worked for the company, interned in a network of labor and concentration camps in the Lublin District of the semi-colonial General Government territory.