The contract included the clause that the union should not demand money after that, however the works continued until the fourth construction in 1950, and ultimately the Furukawa side paid 1,190,000 yen which was 4 percents of total cost of 32,000,000 yen.
今後一切現金提供を求めないという条文が契約書に盛り込まれたが、工事は1950年の第4次工事まで続き、最終的に古河側は総工費3200万円の4%にあたる119万円を負担した。