Washington pressures TSMC to make chips in US
I think there is a  geopolitical reason why most TSMC's 300mm GIGAFAB's and advanced backend fab are located in Taiwan (1 fab in China). https://www.tsmc.com/english/contact_us.htm#TSMC_fabsConcentrating geopolitical risk of TSMC operations makes Taiwan more important to the rest of the world. The US would naturally want to reduce this risk. In Taiwan-China conflict world chip production would take a huge hit or be in the danger of falling under Chinese rule.If TSMC's leadership is patriotic, they should refuse this pressure as much as they can and ask more weapons for Taiwan instead.