Samsung permanently dropped the phone in October, at an estimated cost of at least $5.3 billion.
Company may have violated EU antitrust rules by denying Apple technology to develop mobile phones.
The Minokamo factory employs 840 people making lenses for digital cameras and mobile phones.
Warns against doing business with them. Highlights American unease about China companies.
Report says China tech giants pose a national security threat to US
Beijing rejects WTO complaints by US, Europe and Japan.
Snag cleared, science ministry rejected an appeal by residents to revoke a license.