Surprised it took so long.
Although the effect is likely to be minimal:
Compared to Samsung and SK Hynix, which house a sizable share of their production in China, TSMC’s manufacturing footprint in the world’s second-largest economy is relatively small. The company’s Nanjing site began production in 2018 and contributed a small fraction of TSMC’s total revenue last year. The campus houses technology as advanced as 16-nanometer, which first became commercially available more than a decade ago.
I was gonna say - it’s performative. Trump already tried a substantial trade war with China and backed off rather quickly after their response. Most American manufacturing stops without Chinese inputs, so Trump can’t afford to do much real damage to China.
