Hong Kong shares jumped 450 points or 1.9% to 24,597 on Tuesday morning deals, marking the second session of strong gains as all sectors advanced. The Hang Seng Tech Index climbed 2.8%, with investors focusing on upcoming tech earnings, including Xiaomi Corp. later today.

WuXi AppTec Co. surged near 9% to a 14-month top after announcing a cash dividend and share buyback plan. EV maker BYD Co. soared 2.5%, on plans to roll out new super-charging tech across China.

Consumers, financials, and property also logged strong gains, buoyed by a "special action plan" from Beijing to spur domestic spending and counter the impact of tariffs imposed by President Trump. Further gains were capped by caution ahead of the Fed's interest rate decision this week.

While rates are expected to remain steady, investors awaited the first assessment of the impact of Trump's trade policies. Meanwhile, the PBoC is set to review its key lending rates on Thursday, following their record-low levels in February.

Source: Trading Economics