The Royal Ironworks and Workshops of Mongiana or Mongiana Iron and Steel Pole was an important iron and steel complex built in Mongiana in 1770 – 1771 by the Bourbon dynasty of Naples. An integral part of the industrial and military complex of the Kingdom of the Two Sicilies, and a basic plant for the production of ferrous materials and semi-finished products (later finished both on site and at the Pietrarsa iron and steel pole), it employed around 1,500 workers in 1860. Overwhelmed by events linked to the process of political unification of the Italian peninsula, it was put on the back burner by the Savoy government, causing a rapid decline of the steel complex, which ended with the cessation of activity in 1881.