Wow I did not know this and it is fantastic news, surprised Taiwan allowed this as they see chips as being the most important reason America would intervene if they were invaded.
from both legal and realpolitik lenses the Taiwan issue is fully legitimate. your country has done far worse to Cuba for far less. Even setting aside the historical context and the Chinese civil war, what is illegitimate about not wanting an antagonistic and belligerent foreign power installing weapons in an island mere miles off the mainland coast?