Two Hong Kong-listed stocks were flagged for unusual trading activity at 9:48 a.m., according to ETNet.

New Focus (00360) rose 21.43% to HK$0.051, extending a three-day rally for a cumulative gain of 88.89%.

Sinopec (00386) climbed 2.65% to HK$4.85, hitting a one-month high.

The active buy-sell ratios stood at 61:39 for New Focus and 81:19 for Sinopec.