That said... I question whether this is actually within the president's authority. What did he actually order? (No, I don't care what this article says. What was the actual order?) Does he, constitutionally, have the authority to do that?
"In a novel step that appears to have prompted some companies to broadly suspend trade with China, the rules also bar “U.S. persons” — including American factories, and Americans and U.S. green-card holders who work in foreign factories overseas — from supporting the development or production of advanced chips in China, unless they receive a U.S. government license." Source: https://www.washingtonpost.com/technology/2022/10/17/export-...
"“There are green-card holders considered U.S. persons that are going to be in a bind. Do they want to stay in China and give up their U.S. person status or do they want to move?""
As far as I am aware, he added Semiconductor fab equipment to the restricted export list. ASML can, as a result, not sell those items to chinese customers without facing mucho pain from the U.S. in terms of sanctions or other unpleasantness. Anyone with U.S. citizenship who violates that restriction is in a great deal of hot water if it is found out about, and they try to return/are in the States.
https://www.federalregister.gov/documents/2022/10/13/2022-21...