That's going to be very difficult for a whole host of reasons. The claims that China's making over the South China Sea have obviously been ruled unlawful and not in compliance with the UN Convention on the Law of the Sea.
The challenge, too, is that the PRC's claims to the South China Sea and its maritime boundaries are based on the same claims that the ROC government makes. The map of the nine-dash line that the PRC is using today to make its historic claims are, in fact, on the map that was drawn by the ROC government prior to the formation of the People's Republic of China. That itself makes it a very difficult situation to reconcile.
On one hand, to respect that line would be to contravene the UN convention. At the same time, as China continues to push that line, it also actually de facto recognizes the Republic of China, which puts the PRC government in a very difficult position.