Sources say the president and CEO of Mizuho Financial Group intends to resign to take responsibility for a series of system failures that hit the Japanese banking giant earlier this year.
This comes after the group's Mizuho Bank unit experienced system problems eight times this year.
In February, bank cards and passbooks became stuck inside ATMs, forcing customers to wait for hours to retrieve them.
In August, over-the-counter transactions temporarily became unavailable at about 520 branches nationwide. That included ones operated by Mizuho Trust & Banking, another group unit.
Sources say the Financial Services Agency is making final arrangements to deliver another business improvement order to the group and Mizuho Bank. It already slapped a similar punishment on the group in September.
The agency believes the group's President and CEO Sakai Tatsufumi bears heavy responsibility for the problems.
It is set to notify the bank as early as next week of the results of its inspection into what caused the glitches.