The Philippines has shown a different attitude to the presence of a CCP research vessel in its territorial waters than Australia and New Zealand in March this year with its coastguard escorting the ship out of its Exclusive Economic Zone (EEZ).
The Tan Suo 3 was first detected illegally conducting marine scientific research about 92 nautical miles (nm) (171 kilometres) off Burgos, Ilocos Norte, on May 1. It is believed to have been undertaking deep-sea mapping to support the People’s Liberation Army-Navy (PLA-N) submarine operations.