The harbor is where the big and small ships are located which benefits the same as stations for trains, airports for airplanes, and bus terminals. At the port of the ship will receive pickup passengers and goods.
But in this photo is a port in an existing company in Aceh, the point is to supply raw materials to the manufacture of fertilizer in the factory so that later processed well when in the factory. This port is not open to all types of vessels but only to specialized vessels that are associated with the company.