[4] To this end, in 1852 he began construction of a reverberatory furnace for melting pig iron by clearing the bamboo forest at his residence in the outskirts of Kagoshima.
Some 1,200 craftsmen worked at these factories every day, but after his death, operations were scaled back, and in 1863, almost everything except the reverberatory furnace was burned down during the Anglo-Satsuma War.
His successor, Shimazu Tadayoshi, who realized the superiority of the Western powers through this war, began to rebuild Shuseikan and constructed an even more extensive group of factories, with machinery imported from the United Kingdom, but after the abolition of the han system under the new Meiji government, the facilities were nationalized and became a cannon manufacturing plant for the Ministry and a shipyard for the Imperial Japanese Navy.
In 2015, the building and reverbatory furnace ruins was registered as part of the "Meiji Industrial Revolution Heritage Sites of Japan: Iron and Steel, Shipbuilding, and Coal Mining."
The other location is the Sekiyoshi Sluice gate of Yoshino leat (関吉の疎水溝, Yoshino no sosuikō) which was originally built in the first half of the 18th century to take water from the Abeki River, a tributary of the Inari River, about 4 kilometers northwest of Shuseikan, for the purpose of irrigating new rice fields and supplying water to the Shimazu clan villa, Sengan-en.
Both of these additional areas are also part of the "Meiji Industrial Revolution Heritage Sites of Japan: Iron and Steel, Shipbuilding, and Coal Mining."