Japanese electric motor maker Nidec said on Tuesday it had decided to sue founder Shigenobu Nagamori and eight other former executives for damages over suspected accounting irregularities that have put its stock market listing at risk.

Besides Nagamori, the company plans to sue former chairman Hiroshi Kobe and former chief executives Mitsuya Kishida and Jun Seki, who is now chief strategy officer for electric vehicles at Taiwan’s Foxconn.

The suit will also target two other former directors, two former corporate auditors and a former chief financial officer.

The Tokyo Stock Exchange placed Nidec on “special alert” in October 2025 and gave it a year to improve its internal controls or risk delisting.

The exchange’s action followed disclosures by Nidec of concerns about inappropriate accounting practices at some group companies.

A report by a Nidec-appointed committee of outside lawyers, released this month, said Nagamori had breached his supervisory duties by failing to report the suspected…