The Hang Seng Index dipped 86.18 points, or 0.49 percent, to open at 17,653.23 points on Thursday.

The sell-off came after the S&P 500 on Wednesday registered its biggest fall since April, while the tech-heavy Nasdaq saw its biggest fall since December 2022, losing 1.4 percent and 2.8 percent respectively.

Investors remain nervous about further US restrictions on Chinese technology and the prospects for chip production. (with additional reporting from Xinhua and Reuters)