Under the Han the salt and iron industries were blank

Under the Han dynasty, the salt and iron industries were state monopolies. The government controlled these industries to manage production and distribution, regulate prices, and generate revenue for the state. This was part of a broader economic strategy to stabilize the economy and ensure the supply of essential goods. The state monopolies on salt and iron helped to fund various state projects and military campaigns, reflecting the centralization of power and resources during the Han period.