The US Department of Commerce on Sunday moved to ​close a year-old potential loophole ​it had created that may have led companies to export ​the world's most advanced chips - like Nvidia's most sophisticated Rubin and Blackwell processors, as well as AMD's MI350x - to Chinese entities located outside China.The unexpected guidance suggests the United States' ‌best AI chips ⁠may ⁠have been making their way to the subsidiaries of Chinese AI firms based in places like ​Malaysia for almost a year despite broader US efforts to starve Chinese firms of ​semiconductors needed to develop critical AI capabilities.The new guidance was posted on the Commerce Department's website on Sunday.It is unclear how many of the chips have ​been exported in the year that the Trump ⁠administration left ‌the door open.

One chip industry source with deep supply-chain ​knowledge estimated ​it was....