When the regime wanted additional industrial capacity or resources for the military economy which the private sector could not provide, it was created (or conquered) by the state… during the Third Reich state ownership expanded into the productive sectors, based on the strategic industries, aviation, aluminum, synthetic oil and rubber, chemicals, iron and steel, and army equipment. Government finances for state-owned enterprises rose from RM 4,000m in 1933 to RM 16,000m 10 years later; the capital assets of state-owned industry doubled during the same period; the number of state-owned firms topped 500.

p. 16 - War and Economy in the Third Reich (1994)