The Hang Seng Index rose 1 per cent to 24,033.41 at the noon break, the highest point since March 20. The Hang Seng Tech Index jumped 2.3 per cent. On the mainland, the CSI 300 Index and the Shanghai Composite Index both added 0.2 per cent.
Delivery platform Meituan rose 5.2 per cent to HK$149 and Kuaishou Technology, owner of a short video platform, advanced 5.6 per cent to HK$62.40 due to a strong outlook for its artificial intelligence product.
Other large tech stocks also performed well: JD.com added 4.4 per cent to HK$134.40 and Alibaba Group Holding rose 1.9 per cent to HK$118.80. Alibaba owns the Post.
On the flip side, Geely Automobile Holdings dropped 2 per cent to HK$17.58 and electric-vehicle maker BYD fell 2.6 per cent to HK$392.40 amid an industry-wide price war. On Saturday, Geely boss Li Shufu said his company would stop building new facilities in an effort to combat excess capacity.
Top trade negotiators from the US and China were scheduled to engage in talks in London on Monday, raising hopes that tariff tensions could ease as both nations sought to bolster their economies.