Mainland blue-chip stocks and Hong Kong shares rose on Monday as investors bolstered bets on Chinese tech shares amid Sino-US trade talks and ahead of an expected Federal Reserve rate cut this week.

The benchmark Hang Seng Index ended trading for the day up 58 points, or 0.22 percent, to close at a four-year high of 26,446. The Hang Seng Tech Index advanced nearly 1 percent.

The mainland's blue-chip CSI300 Index ended the session up 0.2 percent, after hitting a three-and-a-half year high.

But the benchmark Shanghai Composite Index was down 0.26 percent at 3,860 while the Shenzhen Component Index closed 0.63 percent higher at 13,005.

The combined turnover of these two indexes stood at 2.28 trillion yuan, down from 2.52 trillion yuan on Friday.

Stocks related to the textile machinery and auto manufacturing industries led gains while ceramics and non-ferrous metals shares saw big declines.

The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, gained 1.51 percent to close at 3,066.

Investors also looked past geopolitical and trade tensions, taking cues from Wall Street's record highs, with the Federal Reserve widely expected to cut rates this week.

The market appears not bothered by tariff uncertainties as China and the United States began negotiations in Madrid on Sunday, and Washington called on its allies to impose tariffs on Russian oil buyers. US Treasury Secretary Scott Bessent said both sides had made good progress on technical details but reaching a deal on other issues would be challenging.

Underscoring the complexity of the Sino-US ties, the Ministry of Commerce launched anti-discrimination and anti-dumping probes against US chips on Saturday.

"The US seeks to suffocate Chinese innovation. China has no choice but to fight back," said Abraham Zhang, chairman of China Europe Capital. "This is a rare opportunity for domestic players to replace foreign technologies."

China's semiconductor stocks climbed, with Shanghai's Star Chip Index rising 0.5 percent.

Elsewhere, Chinese battery stocks jumped on government plans to boost the sector. (Reuters/Xinhua)