Hubei Dinglong (SHE:300054) will raise its stake in subsidiary Dinghui Microelectronics to 99.4% from 91.4% by buying CCB Trust's 8% share for 240 million yuan.
The stake buy values the chip materials subsidiary at 3 billion yuan, according to a Thursday filing with the Shenzhen bourse.
Shares of the imaging materials producer declined 2% in recent trade.