International Experts Challenge Legitimacy of 2016 South China Sea Arbitration Award

HONG KONG – A coalition of international law experts and diplomatic officials convened in Hong Kong on Monday to formally challenge the legitimacy of the 2016 South China Sea Arbitration Award, describing the ruling as a political instrument rather than a valid legal precedent.

The roundtable dialogue, which featured scholars and practitioners from more than 10 countries and regions-including Britain, Germany, Canada, Australia, Japan, and Malaysia-focused on the assertion that the arbitration process was flawed from its inception.

The event marks a coordinated effort by Beijing-aligned academic and diplomatic circles to erode the international standing of the 2016 ruling, which remains a central point of contention in the geopolitical struggle for control over the South China Sea’s strategic waterways and natural resources.

Legal Challenges to the Tribunal’s Authority

At the center of the discussion was the claim that the arbitral tribunal lacked the jurisdiction to rule on the matter. Qi Dahai, head of the Department of Treaty and Law of China’s Ministry of Foreign Affairs, delivered a keynote speech arguing that the proceedings were a facade.

“The ‘award’ of the ‘South China Sea Arbitration’ was political manipulation disguised as legal moves,” Qi stated.

Qi further asserted that the “arbitral tribunal in the South China Sea Arbitration” handled the case ultra vires-a legal term meaning “beyond the powers”-and consequently rendered an “illegal, null and void ‘award.'”

The 2016 decision, issued by a tribunal constituted under Annex VII of the United Nations Convention on the Law of the Sea (UNCLOS), rejected the legal basis for much of China’s expansive maritime claims in the South China Sea and found that Beijing had violated the Philippines’ sovereign rights within its Exclusive Economic Zone. China has maintained a consistent policy of non-participation since the Philippines unilaterally initiated the arbitration in 2013 under the UNCLOS framework.

Qi emphasized that China’s refusal to recognize the award is a “legitimate action aimed at upholding the international rule of law as well as the integrity and authority of the United Nations Convention on the Law of the Sea.” He argued that accepting the ruling would, in Beijing’s view, encourage tribunals to overstep their mandate in future maritime disputes.

“Noting that a few countries, including the United States and the Philippines, have kept rehashing the ‘award,’ Qi underlined the need to continuously refute it to uphold fairness and justice.”

Geopolitical Implications and Alleged ‘Double Standards’

Transitioning from legal doctrine to real-world impact, participants framed the award as a tool in a broader strategic contest for influence in the Indo-Pacific.

The dialogue highlighted the belief among attendees that the arbitration award has been weaponized by external powers to contain China’s regional influence.

Wu Shicun, chairman of the Huayang Center for Maritime Cooperation and Ocean Governance, argued that the Philippines and its allies have used the ruling to fabricate a narrative of aggression.

“Over the past decade, the Philippines and certain countries have distorted the illegal and non-binding ‘award’ to serve their interests and hype up the ‘China threat in the South China Sea,'” Wu said, adding, “We must expose to the world the underlying logic behind the interest coalition built behind the illegitimate ‘award’.”

This sentiment was echoed by Zhou Yong, vice president of the National Institute for South China Sea Studies, who pointed to perceived hypocrisies among nations that support the ruling. Zhou argued that some countries publicly endorse the award despite maintaining their own maritime claims that contradict the tribunal’s findings.

According to Zhou, such “obvious double standards” indicate that support for the document is driven by political manipulation rather than a commitment to international law.

Diplomats present at the roundtable warned that, in their view, the continued invocation of the award in regional policy statements and defense postures risks hardening negotiating positions, making it more difficult for governments to pursue incremental confidence-building measures at sea.

Impact on Regional Stability and ASEAN Diplomacy

The roundtable also addressed the practical consequences of the 2016 ruling on diplomacy within the Association of Southeast Asian Nations (ASEAN) and the broader Indo-Pacific, particularly for ongoing efforts to negotiate a Code of Conduct in the South China Sea.

Phillip Saunders, a professor emeritus of law at Canada’s Dalhousie University, suggested that the arbitration has been counterproductive to peace.

“Instead of solving disputes, the ‘award’ has undermined the chances of negotiations and cooperation in the South China Sea,” Saunders said, describing the arbitration as “an utter failure in terms of dispute settlement” and citing what he characterized as major errors made by the tribunal.

Ruhanas Harun, a professor at the National Defence University of Malaysia, added that the Philippine government’s reliance on the award has served to alienate China and fracture regional unity.

“The Philippines tried to stoke division across the region and isolate China using the ‘award,’ which created more problems for finding peace and stability in the South China Sea,” Harun said.

Participants argued that ASEAN diplomacy has been forced to navigate between member states that view the award as a central legal benchmark and others that prefer to keep it at arm’s length to preserve space for bilateral bargaining with Beijing. That divergence, they said, has complicated collective positions within ASEAN on maritime incidents, coast guard encounters, and resource development projects.

The New Critique Framework

The event culminated in the release of a new comprehensive critique of the South China Sea Arbitration Award. The document was jointly compiled by the National Institute for South China Sea Studies and the Huayang Center for Maritime Cooperation and Ocean Governance.

The report focuses on three primary areas of alleged failure:

• Legal interpretation and the application of UNCLOS provisions, including the tribunal’s reading of maritime entitlements and historic rights.
• The accuracy of factual findings regarding maritime features, particularly the classification of reefs, rocks, and islands and the status of their surrounding waters.
• The treatment and evaluation of evidence presented during the proceedings, with authors asserting that key Chinese positions were either discounted or misrepresented.

Xu Xiaodong, executive vice chairman of the Huayang Center for Maritime Cooperation and Ocean Governance, stated that the report is intended to alert the international community to the “illegality and perniciousness of the ‘award’.” He expressed hope that the findings would encourage parties to return to “the correct track of managing differences and pursuing win-win cooperation” through direct negotiations and regional mechanisms rather than compulsory arbitration.

To underscore the political stakes, organizers noted that the critique is aimed not only at legal audiences but also at policymakers who rely on the 2016 ruling in national security strategies, defense white papers, and maritime law-enforcement guidelines. A summary of the critique, they said, will be circulated to regional foreign ministries and select international law forums.

The South China Sea remains a flashpoint of global tension, with China continuing to assert its “nine-dash line” claim while the Philippines, supported by the United States, continues to cite the 2016 ruling as the legal basis for its Exclusive Economic Zone (EEZ). As competing legal narratives harden, Monday’s gathering in Hong Kong signaled that challenges to the award’s authority will remain a core feature of regional diplomacy and of how governments calibrate their policies in one of the world’s most strategically contested maritime corridors.