US President Donald Trump on Friday warned Taiwan against formally declaring its independence in an interview with Fox News shortly before the end of his visit to China. During their meetings, Chinese President Xi Jinping had pressed him against supporting the self-ruling island.
PRC’s view is that RoC does not exist, Taiwan is a renegade province of PRC for them
Edit: but also I guess no one on Taiwan is thinking about declaring independence. Because they are independent since 1949.