One of them, Mizuho Financial, has already admitted senior managers knew three years ago it had lent 200 million yen ($2 million) to Japanese criminal gangs, but did not take action.
An external inquiry cleared the bank of intentionally covering up the loans.
Sumitomo Mitsui is the third involved.
The yakuza gangs are not actually illegal. But like the Italian mafia or the Chinese triads, they are involved in unsavory activities such as gambling, drugs and prostitution, as well as operating protection rackets.
On Monday, lawyers hired by Mizuho to look into the transactions said “many officials and board members were aware of, or were in a position to be aware of, the issue”.
But the lawyers’ report also said that Mizuho failed to recognize it as a problem, believing that the compliance division “was taking care of it”.
The company said 54 former and current executives would be punished, including Mizuho bank chairman, Takashi Tsukamoto, who is resigning his position but will remain as head of the parent company.
Igb_AroZ96QImage source: Wikimedia Commons President-elect Donald Trump celebrated his election victory at the Ultimate Fighting…
Millions of voters across the US chose to return Donald Trump to the White House…
Donald Trump declares victory in the US election as he addresses jubilant supporters in Florida.…
Stocks around the world are rising as Donald Trump appears to be on the cusp…
Donald Trump has won Pennsylvania, North Carolina and Georgia and taken a lead over Kamala…
Quincy Jones, the celebrated musician and producer who worked with Michael Jackson, Frank Sinatra, Ray…