The Philippine Coast Guard (PCG) has confirmed the presence of three Chinese research ships inside the country’s exclusive economic zone (EEZ) over the last three weeks. The vessels, reportedly capable of deep-sea surveying, have raised new concerns about maritime security and sovereignty in the West Philippine Sea.
Commodore Jay Tarriela, PCG spokesperson for the West Philippine Sea, revealed in a press briefing Tuesday that only two of the ships remain in Philippine waters, while one has returned to China.
Tarriela identified the vessels as Xiang Yang Hong 302, Tan Sou Er Hao, and Zhong Shan Da Xue. The first two are still under monitoring, while the third exited Philippine territory on May 20 after nearly two months of operations.
Xiang Yang Hong 302 tracked near Palawan
Tarriela said that Xiang Yang Hong 302 departed from Hainan on May 1. Using dark vessel detection technology from the Canadian government, authorities pinpointed the ship’s location as 180 nautical miles off the coast of Rizal, Palawan, as of Tuesday morning.
Described as a 100-meter, 4,500-ton vessel, Xiang Yang Hong 302 is reportedly equipped for deep-sea scientific research. Tarriela noted that its presence within the EEZ raises serious questions about the intent of its mission.
Tan Sou Er Hao spotted near Ilocos Norte
The second vessel, Tan Sou Er Hao, departed Hainan on May 8 and was recently detected 130 nautical miles off Burgos, Ilocos Norte. The PCG conducted a maritime domain awareness (MDA) flight to monitor its movement.
Tarriela confirmed that the ship has similar deep-sea research capabilities. Surveillance efforts continue, with the Coast Guard coordinating with foreign partners for satellite tracking.
Zhong Shan Da Xue departs after extended stay
The third vessel, Zhong Shan Da Xue, arrived in the Philippine EEZ on March 31 and returned to Guangdong province on May 20. Tarriela explained that its navigation patterns indicated a clear focus on scientific research. He added that the prolonged presence of these ships cannot be dismissed or denied by Beijing.
The Philippine government has yet to issue a formal protest but is closely watching the situation.
Increased vigilance amid heightened maritime tensions
Tarriela emphasized that the Coast Guard remains committed to defending the country’s maritime rights. He said enhanced monitoring efforts using international technology partnerships allow the Philippines to detect unauthorized entries more effectively.
The West Philippine Sea has long been a flashpoint in Southeast Asia, with multiple countries asserting overlapping claims. The presence of foreign vessels, particularly Chinese ships, often escalates diplomatic tensions.
The PCG assured the public that it will continue its efforts to ensure national sovereignty is upheld. Authorities are working with regional allies to improve maritime domain awareness and response.
This recent development comes amid growing international scrutiny over China’s activities in disputed waters, prompting calls for increased transparency and regional cooperation to prevent further incidents.
Jaja has a degree in journalism and took classes in international law and business communication. Her career spans roles at prominent international media outlets, including International Business Times, Celebeat and Delightful Philippines. As a news editor, Jaja covered a wide range of beats, including legal, business, economy, cryptocurrency, personal finance, gaming, technology, and entertainment.