An Industrial World is a type of planet of the Imperium of Man whose surface is devoted wholly to manufacturing or heavy mining and refining activities. These worlds have surprisingly sparse populations in relation to Hive Worlds or Forge Worlds, as most of the labour is done using machines and other forms of advanced automation. Those Industrial Worlds whose primary function is mining and refining are usually blessed with an unusually abundant reserve of highly strategic minerals in order to justify the expense of the investments in technology, labour and other resources.