The US - Huawei situation is way too complicated and multi-faceted to really get into right now. But, currently, as things stand, Huawei Technologies Co Ltd and over 40 of its subsidiaries are on the US entities list, which means that their products are subject to export and transfer government restrictions. Beyond that, there is also a US government ban on purchasing Huawei tech. This new development actually deals with the flip side of the sales and supply chain. Simplifying things quite a bit, the US currently has a De minimis Rule dictating the minimum percent of US-made components...
Source: https://www.gsmarena.com/the_us_is_apparently_making_moves_towards_blocking_more_sales_to_huawei-news-41050.php
