The Japanese market is indeed tempting, but Zhu Wencong is not interested, as this place is America's private land, completely safe from others' theft.
Zhu Wencong needs a large amount of funds to invest in the industrialization of Songjiang, striving to make Songjiang the world's future beacon, attracting Western capital.
The reason for the past splendor of Songjiang was the substantial investment of real gold and silver by Western Countries, having nothing to do with the Qing court.
Many of the Qing court's coastal cities' industrial constructions were funded by Western countries, after all, the Qing court was reluctant to connect with the world but was forced to sell concessions under strong pressure.
Japan is eager to connect with the world, having seen the outside world's dazzling scene, they can never return to the past.
However, Western capital was more interested in the Qing court, as Japan, after all, is an island country with meager resources and population.