Seres Group (SHA:601127, HKG:9927) controlling shareholder Chongqing Xiaokang plans to boost its stake by between 150 million yuan and 300 million yuan over the next six months via open-market purchases.
Chongqing Xiaokang currently holds a 22.99% stake in the vehicle maker, according to a Monday filing with the Shanghai bourse.
Shares of Seres Group fell 3% in recent trade.