Japanese regional bank stocks came under heavy selling pressure on Tuesday and Wednesday after investors assessed the financial impact of the bankruptcy of Osaka-based credit card payments processor Zentoshin, raising concerns over lenders’ loan exposure and potential credit losses.
Among the biggest decliners was Towa Bank, whose shares plunged more than 8% on Tuesday after the lender disclosed loan exposure exceeding 8 billion yen ($49.4 million) to Zentoshin. The stock recovered modestly, gaining around 2% in Wednesday trading as investors reassessed the initial reaction.
Other regional banks also faced pressure after revealing their respective exposures to the failed payments company. Taiko Bank dropped 2.2% on Wednesday following a 1% decline in the previous session, after reporting a potential default risk tied to 1.5 billion yen in loans to Zentoshin. Bank of Kochi fell 2.5% after disclosing 1.2 billion yen in outstanding loans, while Shimane Bank slid 3% after reporting exposure of approximately 800 million yen.
Each lender said it is setting aside provisions to cover the possibility that Zentoshin may default on its obligations, reflecting a cautious approach as the bankruptcy process unfolds.
Zentoshin, a privately held payment processing company headquartered in Osaka, filed for bankruptcy on Monday with total liabilities of approximately 125.9 billion yen. According to local media reports, the collapse marks Japan’s largest corporate bankruptcy of the year, highlighting growing concerns over credit risks within parts of the country’s financial sector.
The bankruptcy has triggered investor worries about the broader impact on regional banks, many of which maintain close lending relationships with local businesses. While the disclosed exposures remain relatively small compared with the banks’ overall balance sheets, market participants are closely monitoring whether additional financial institutions could report losses or increase loan-loss provisions in the coming weeks.
The developments underscore how a major corporate failure can quickly weigh on investor sentiment toward Japan’s regional banking sector, even as lenders work to contain the financial impact through precautionary reserves.


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