AppoTech (also branded Buildwin) is an active Chinese fabless SoC maker based in Zhuhai, but no IEEE OUI was located for it — a negative finding. Its silicon spans USB-audio SoCs, Bluetooth-audio SoCs, USB flash and card-reader controllers, and recording devices. The reason for the negative finding is the same chipset-vs-brand reasoning that applies to MVSilicon, Bluetrum, BES, and JieLi: budget USB/BT-audio and storage-controller silicon typically does not carry a dedicated chipset OUI, with device addresses allocated by the host brand or randomized. Note that AppoTech is a distinct company from Zhuhai Jieli despite the shared Zhuhai geography. For triage, AppoTech silicon (USB dongles, BT audio, flash controllers) will not present an AppoTech OUI — identify the device by its host-brand or module-vendor MAC instead.
- IEEE assignment
- no IEEE OUI located for AppoTech / Buildwin [Likely negative] — maclookup.app (absence)
- Registry / block size
- none located [Likely negative]
- HQ / country
- Zhuhai, China (corporate; not an IEEE registrant) [Likely] — corporate
- Company status
- active fabless SoC maker [Likely] — corporate
- Device types
- USB-audio SoCs, Bluetooth-audio SoCs, USB flash/card-reader controllers, recording devices [Confirmed] — corporate
- Notable products
- USB/BT-audio SoCs; USB flash and card-reader controllers
- Verified prefix
- none (negative finding) [Likely]
- Special note
- Negative finding (like MVSilicon/Bluetrum/BES/JieLi). AppoTech is distinct from Zhuhai Jieli despite the shared Zhuhai geography. Budget USB/BT-audio and storage-controller silicon typically doesn't carry a dedicated chipset OUI. The IEEE registry publishes no assignment dates, and no AppoTech block was located. [Likely]
- Related vendors
- JieLi (Zhuhai Jieli), Bluetrum, BES (comparable budget audio/controller SoC makers)
- Analyst note
- AppoTech silicon (USB dongles, BT audio, flash controllers) will not present an AppoTech OUI; identify the device by its host-brand or module-vendor MAC instead.