 The Komsomolsk-on-Amur Aircraft Production Association is currently among the krai's most successful enterprises, and for years has been the largest taxpayer of the territory.Other major industries include timber-working and fishing, along with metallurgy in the main cities.Komsomolsk-on-Amur is the iron and steel centre of the Far East; a pipeline from northern Sakhalin supplies the petroleum-refining industry in the city of Khabarovsk.