Huawei has regained the ability to trade with American-based business again...technically. US firms that wish to do so need to apply for a specific new license from the current administration. Bloomberg now reports that these are being withheld in response to China's apparent reluctance to buy more crops from the States.
https://www.notebookcheck.net/Huawei-finds-its-route-back-to-US-market-obstructed-by-new-trade-war-twist.429484.0.html