Hong Kong stocks jumped at the opening on Tuesday, as concerns grew over US President Donald Trump's potential probe into Federal Reserve Chair Jerome Powell, leading some investors to seek safety in the Hong Kong market.
The benchmark Hang Seng Index rose by 350 points, or 1.32 percent, to 26,958 points.
The Hang Seng Tech Index increased by 1.93 percent to 5,976 points.
WUXI AppTec (2359) jumped 4.7 percent after saying its profit to double this year, while WuXi Biologics (2269) went up 1.06 percent.
Major tech names extended gains, with Alibaba (9988), Tencent (0700), and JD.com (9618) rising nearly 5 percent, 2.25 percent, and 2.05 percent, respectively.
As gold topped a record high, Zijin Mining's (2899) shares increased by 1.83 percent.