According to Kabutan, Yonhap and HKET, Japan's Nikkei 225 opened Tuesday at 68,564.85, down 466.07 points, as Tokyo returned from a three-day weekend. Losses deepened after the open, with the index falling below 68,000 and trading at 67,434.81, down 1,596.11 points or 2.31%, as of 00:53 UTC. Chip-related shares came under pressure, with Kioxia Holdings, Advantest, Tokyo Electron and SoftBank Group lower, while Mitsubishi UFJ Financial Group and Toyota Motor gained; shipping, insurance and banks led sector gainers.

South Korea's KOSPI opened 3.1% lower at 6,186.08, down 198.16 points, as losses in U.S. technology stocks weighed on sentiment. Chipmakers led the decline, with Samsung Electronics down 4.79% and SK hynix down 5.61%. The Korea Exchange activated a sell-side sidecar at 00:48 UTC after the KOSPI 200 futures index fell 5%. The KOSPI stood at 6,127.15, down 257.09 points or 4.03%, as of 00:50 UTC.

Hong Kong's Hang Seng Index opened 99 points lower at 24,172, while the Hang Seng Tech Index fell nearly 1% to 4,129. JD.com fell 3%, Tencent declined 1% and CSOP SK Hynix Daily Max (2x) Leveraged Product dropped more than 14%. Tencent began marketing a $5 billion bond offering.

Taiwan's TAIEX opened at 49,126.27, then slipped below 49,000 and touched an intraday low of 48,401.13, at one point down more than 900 points. The index stood at 48,544.21, down 757.75 points or 1.54%, as of 01:03 UTC. TSMC opened at NT$2,500 and was at NT$2,505, down NT$35 or 1.38%, at the same time.

Mainland China stocks declined. As of 01:39 UTC, the Shanghai Composite Index was at 3,768.13, down 0.77%, the Shenzhen Component Index was at 12,197.35, down 1.51%, and the CSI 300 Index was at 4,247.05, down 0.95%.