The "Green Folder" (German: Grüne Mappe) was a document belonging to Reichsmarschall Hermann Göring which was presented in the Nuremberg Trials.
Under Göring's leadership, a plan known as Oldenburg was created to include the seizing for the service of the Reich all stocks of raw materials and large industrial enterprises in the territory between the Vistula and the Urals.
Göring, directly supervising the "Oldenburg" headquarters, wrote: Shortly after the beginning of the German campaign against the Soviet Union, on July 15, 1941, he wrote in his "Green Folder": Initially, the German military leadership believed that, during the war, it would not be necessary to rebuild the Soviet Union's industry or to use its natural wealth, and that a policy of seizing only finished products and raw materials in warehouses would be sufficient.
Subsequently, they made an accounting of industry and mines to ensure their safety and to establish civil administration of captured territories.
When the expected rapid end of the war did not materialize and Germany suffered great losses in manpower, equipment and weapons, the existing stocks began to be depleted quickly.