On May 19, the Commerce Department issued new export rules to choke off Huawei’s access to semiconductor chips it needs to build cellphones and 5G infrastructure.
The new controls ban chipmakers — mostly based in South Korea and Taiwan — from using U.S. machines and software to manufacture semiconductors for Huawei. That closes a loophole that had allowed semiconductor makers to continue to sell components and designs to Huawei as long as they were made outside the U.S. Source KPCW