Hong Kong close: Hang Seng Index down 0.98%; Hang Seng Tech Index down 1.41%. Optical communications, PCB and semiconductor sectors outperformed, closing higher.

BYD said a coding-entry error by rim sub-supplier Hubei Boyu Industrial Co., Ltd. caused incorrect rims to be fitted on some Datang vehicles. The company has completed inspections, corrected the coding and implemented visual error-proofing on the supplier's new production line. Special testing found no effect on vehicle handling and no safety risk. BYD will invite affected owners to local service centers for free inspection and professional rim replacement, and will provide loaner vehicles or travel-cost compensation; warranty on misassembled vehicles is being reset from today. BYD said it will conduct a full review and continue supplier remediation.

AMD (AMD.O) said its sixth-generation EPYC SP7 processors, based on the Zen 6 architecture, are now fully launched and available.