Markets in South Korea were closed for a public holiday.
Asian stocks rose earlier in the week ahead of scheduled trade talks between top US and Chinese negotiators in Washington on Thursday and Friday. But renewed strains between the two sides have overshadowed those discussions.
Those moves have angered Beijing.
Some of the Chinese tech companies on the US blacklist rebounded Wednesday. Meiya Pico, a digital forensics firm, rallied 4.6% in Shenzhen after a 1.6% loss Tuesday.
IFlytek, a voice recognition software developer, was up about 1.5% in Shenzhen after falling 2.7% Tuesday.
Both companies have said that the blacklist will not have a major effect on their operations.
Surveillance camera makers Hikvision and Dahua Technology, meanwhile, have suspended trading of their shares since Tuesday.