From silicon.co.uk
US Commerce Department to bar overseas semiconductor manufacturers from selling to Huawei and HiSilicon if they use US-made chip gear
The US has tightened its export regulations in a move to put further pressure on Huawei and affiliates such as HiSilicon, which the US administration views as a national security threat.
Huawei has been barred from purchasing technology from US companies since May 2019, but the US Commerce Department said it had it had continued to build chips by “commissioning their production in overseas foundries using US equipment”.