The Hang Seng Index inched up 0.09 percent, or 23.31 points to 26,150.24 points, as of midday.
The mainboard turnover was about HK$63.54 billion.
The Hang Seng TECH Index rose 0.21 percent to 6,768.67.
Among the blue chips, Wuxi Biologics (2269) was the top gainer, whose shares went up 4.24 percent, at HK$118.1.
Haidilao International (6862) lost 7.88 percent to HK$26.9, the worst performer.
The Shanghai SE Composite rose 0.38 percent to 3,596.06 points and Shenzhen Stock Exchange Composite Index grew 0.51 percent at 2,424.94 points.