Shares of Kobe Steel Ltd slid more than 8 percent early on Friday after the Nikkei newspaper said more than 30 non-Japanese customers including Daimler AG
Kobe Steel shares were down 8.5 percent at 0030 GMT after stabilising on Thursday to close slightly higher.
Chief Executive Hiroya Kawasaki had warned reporters on Thursday that the data fabrication practice, which the company said affected about 200 companies, may have spread beyond Japan.
The government has ordered it to report on how the misconduct occurred and address safety concerns within about two weeks.
(This article has not been edited by Zeebiz editorial team and is auto-generated from an agency feed.)