Nidec reports a 519 billion yen operating loss after restating results, and its auditor declined to give an opinion

On 30 September 2026 Nidec, a Japanese maker of motors and cooling parts, published its results for the year to 31 March 2026. Net sales were 2,708.7 billion yen, up 3.9%, and the operating result was a loss of 518,978 million yen, "due to the recording of an impairment loss of Non-financial assets ¥632,135 million". The same day Nidec said its auditor, PwC Japan, issued a disclaimer of opinion on its accounts and internal controls, citing a lack of audit evidence. A third-party committee had found improper accounting at many Nidec sites.

Why we file it. Nidec's filing names AI data centers as a growth area.

How we read it. Nidec's own figures. Its water-cooling modules and disk motors are in the small precision motor segment. Its data-center backup generators are in the segment that took a write-down. No AI-specific profit number.

Why it matters to you: AI data centers need cooling parts, and one supplier has had to restate its past results while its auditor declined to sign off.