What's the need to know here specifically on TSMC in China. Well, this adds yet another speedbump for TSMC and its suppliers in trying to bring equipment, chemicals and other things that they need for this facility in Nanjing. It is not a major portion of Tsmc's overall manufacturing picture. It counts for a relatively small fraction of the company's revenue.And yet it is symbolically significant because the move mirrors what the US government announced on Friday, and that is that Samsung and SK Hynix would ...