iRay Technology (SHA:688301) is looking to offer 30,032,755 shares to specific investors, according to a Thursday filing with the Shanghai bourse.
The X-ray system components manufacturer will use the 1.17 billion yuan in proceeds to construct X-ray vacuum devices.
China International Capital Corp (HKG:3908, SHA:601995) is the sponsor and lead underwriter of the issuance.
Shares slid 3% during morning trading on Thursday.