Power stocks were among the top gainers in early tradingsupercatcasinonodepositbonus, China Electric Power (02380) rose 5.5supercatcasinonodepositbonus.35%, at HK$3.74; Datang Power Generation (00991) rose 5.03% to HK$1.67; Huadian International (01071) rose 5.09% to HK$4.54; China Resources Power (00836) rose 3.02% to HK$22.20.