China Defies US and Philippines, Completes Survey in Scarborough Shoal

China has again dispatched a research team to the disputed South China Sea, pressing ahead with a comprehensive survey at Huangyan Dao—known internationally as Scarborough Shoal—amid intensifying rivalry with the Philippines and the United States. Foreign Ministry spokesperson Lin Jian said on Wednesday the survey was carried out by researchers from the South China Sea Institute of Oceanology under the Chinese Academy of Sciences (CAS). The research, which began in late May, is aimed at improving understanding of the Huangyan Dao ecosystem. The announcement followed media reports linking Chinese activity in the area to rising geopolitical tensions in the South China Sea, with some reports alleging the relocation of structures around the shoal under pressure from the US and the Philippines. Beijing rejected that narrative. Lin asserted that Huangyan Dao is inherent Chinese territory and the research activities are fully within the country’s rights. “Huangyan Dao is China’s inherent territory, and China has indisputable sovereignty over Huangyan Dao and its adjacent waters,” Lin said, adding that China has the right to conduct various activities, including scientific research, in the area without interference from other parties. Beijing also urged relevant countries to stop spreading what it called baseless information and to avoid provocative actions at sea. Although framed as a scientific mission, China’s activities at Huangyan Dao are expected to remain a focus of regional concern. Scarborough Shoal has been a flashpoint in the dispute between China and the Philippines for more than a decade. Manila claims the feature lies within its exclusive economic zone under the UN Convention on the Law of the Sea (UNCLOS), while Beijing considers it part of China’s historic territory. The dispute is further complicated by strategic interests far beyond fishing rights or scientific research. The South China Sea is an international trade route through which goods worth trillions of dollars pass annually and is believed to hold significant oil and gas reserves. The United States, which has no territorial claims in the South China Sea, routinely sends warships and military aircraft to the area in freedom of navigation operations. Washington insists international shipping lanes must remain open and not be controlled by any single country. China, however, views the US military presence as increasing the risk of conflict and undermining regional stability. In recent years, tensions between vessels and aircraft of the two nations have flared on several occasions around the South China Sea and the East China Sea. The South China Sea issue is also closely linked to the Taiwan question. Beijing regards the island that separates Taiwan from the Southeast Asian mainland as a vital part of its national security perimeter. Consequently, any increase in US military activity around the Philippines, Taiwan, or the South China Sea is often seen by China as part of a broader containment strategy.