Surprisingly enough, Huawei is not present at MWC 2018 with any Android Go handset. However, it seems that such a device is almost ready to hit the market. References to the Huawei Y5 Lite (2018) with Android Oreo Go edition onboard were recently spotted in some firmware files. Shortly after that happened, this MediaTek-powered handset apparently arrived at the FCC as well.
https://www.notebookcheck.net/Huawei-Y5-Lite-2018-with-Android-Go-onboard-surfaces-online.286880.0.html