Does the Name of the Sea give China ownership? Its claiming its all Chinese despite Vietnam, Philippines and other countries and normal conventions for countries sea boundaries.
SCMP today said "China should ramp up the pressure to dissuade the Philippines from seeking a second arbitration on the disputedSouth China Sea, an observer said, warning that it might encourage other rival claimants to follow suit."
Threats and water cannons to date. A ramming or two. Bullies who do not like legal processes over sea boarders are not uncommon. Australia is infamous over a gas field near East Timor!