UNCLOS SEA Arbitration:
https://pca-cpa.org/en/cases/7/

https://en.wikipedia.org/wiki/South_China_Sea_Arbitration

Ayungin Shoal is under Philippine Jurisdiction. 
https://www.pacom.mil/Portals/55/Documents/pdf/J06-Sierra%20Madre%20and%20Second%20Thomas%20Shoal.pdf?ver=pLzHUXFTPSsSWX5ElSc8lA%3D%3D

As we said that Chinese Patrolling in the area doesn't mean that it's a China's Territory. There are Vietnamese, Taiwanese and Malaysian Patrols in the area and we don't change the jurisdiction because of the patrolling.

The Area is in International Waters and anyone can pass through the area and this doesn't mean this is China's territory. 
