Cambodia Takes Thailand to UNCLOS Conciliation After Bangkok Ends Maritime MoU

Cambodia Launches UNCLOS Conciliation Proceedings

In Phnom Penh, Cambodia has formally begun compulsory conciliation proceedings under the United Nations Convention on the Law of the Sea. This step comes after Thailand ended the 2001 memorandum of understanding that once guided talks on overlapping maritime claims. Cambodian Prime Minister Hun Manet announced the decision during a national address on Tuesday, confirming that both Thailand and the UN secretary-general had been notified of the move.

Thailand Ends the 2001 Memorandum of Understanding

The Thai Cabinet made its decision on 5 May to withdraw from the 2001 MoU. Thai Prime Minister Anutin Charnvirakul explained that the agreement had not led to meaningful progress after many years. With this withdrawal, the long-standing bilateral framework for discussion came to an end, leaving both nations without their previous channel for addressing shared maritime concerns.

Context of Overlapping Claims in the Gulf of Thailand

The 2001 MoU had covered areas of overlapping maritime claims in the Gulf of Thailand, where both countries hold interests in contested waters. These waters hold potential for resource development that could benefit communities on both sides of the border. Hun Manet noted that the MoU represented the only agreed bilateral path for handling these claims and exploring resources together in a cooperative spirit.

Seeking a Peaceful Path Through International Experts

Hun Manet described the UNCLOS conciliation as a calm and legal step, not an escalation. The process brings together an independent panel of international experts to support further talks. Cambodia hopes this approach will lead to a fair and lasting settlement that respects each nation’s sovereignty and maritime rights under international law.

What This Means for Thai Readers and Thailand-Cambodia Relations

For Thai readers, this development marks a shift from direct talks to a broader international setting, which may influence how future discussions unfold between the two neighbours. The move highlights the importance of maintaining steady and respectful ties, as both Thailand and Cambodia share a long history of working through challenges together. A balanced outcome could support lasting peace and cooperation in the region for generations to come.