The story has been told many times about how U.S. restrictions placed on Huawei took it off a path that would have made the firm the largest smartphone company in the world. In 2019, the company was placed on the U.S. Entity List for national security reasons preventing it from accessing its U.S.-based supply chain. That meant that the Google Mobile Services (GMS) version of Android was off-limits and resulted in Huawei developing its own HarmonyOS (now in its third version).