The following is the Feb. 2, 2021, Congressional Research Service In Focus report, South China Sea Disputes: Background and U.S. Policy.
From the report
Multiple Asian governments assert sovereignty over rocks, reefs, and other geographic features in the heavily trafficked South China Sea (SCS), with the People’s Republic of China (PRC or China) arguably making the most assertive claims. The United States makes no territorial claim in the SCS and takes no position on sovereignty over any of the...
https://news.usni.org/2021/02/03/overview-of-south-china-sea-disputes-and-u-s-policy