There are not. Chip manufacturing is extraordinarily delicate. You need incredibly precise machinery to operate in a vacuum with highly skilled workers. All three of these things react poorly to bombs.

If a Chinese capture of Taiwan is strongly opposed by just the Taiwanese, not even the Americans, then it will take just as long to reactivate TSMC as it would to build a new Chinese manufacturing base from scratch. If not longer, given risks of insurgents, UXO, and devastated infrastructure.