Cambodia and Thailand begin UN-backed conciliation on maritime dispute


Thailand's Foreign Minister Sihasak Phuangketkeow arrives to meet with Cambodia's Foreign Minister Prak Sokhonn for the first meeting of the Conciliation Commission set up under the United Nations Convention on the Law of the Sea (UNCLOS) at Capella Singapore in Singapore, September 15, 2026. REUTERS/Caroline Chia

BANGKOK, Sept 15 (Reuters) - Foreign ministers ⁠of Cambodia and Thailand delivered opening statements on Tuesday at the first ⁠meeting of a U.N. arbitration process to resolve a long-running maritime dispute ‌between the two Southeast Asian neighbours.

Here are some details from their statements delivered at a meeting in Singapore:

• Having launched the compulsory conciliation process under the United Nations Convention on the Law of the Sea (UNCLOS), ​Cambodian Foreign MinisterPrak Sokhonn said his country was seeking ⁠a treaty with Thailand delimiting ⁠a single all-purpose maritime boundary.

• "In the alternative, Cambodia would be prepared to conclude an agreement ⁠with ‌Thailand for the joint development and equitable sharing of resources between the two states," he said.

• In his statement, Thai Foreign MinisterSihasak Phuangketkeow said ⁠the scope of the ongoing proceedings concerned only maritime boundary ​delimitation between Thailand and ‌Cambodia in the Gulf of Thailand.

• "Thailand enters this conciliation in good faith, fully ⁠mindful of the ​provisions of UNCLOS," Sihasak said, noting that Bangkokhad proposed direct talks on the maritime boundaries be held first before moving to the UNCLOS process.

• For more than 25 years, Cambodia ⁠and Thailand have both laid claim to about 26,000 ​sq km of sea in the Gulf of Thailand, an area estimated to hold nearly 12 trillion cubic feet of natural gas and large quantities of oil with a ⁠value of about $300 billion.

• The neighbours signed a pact in 2001 to develop a framework to jointly exploit the energy resources in the so-called "overlapping claims area" but Thailand terminated the agreement in May, a fallout of deadly border clashes last year.

• In June, ​Cambodia announced it had launched a compulsory conciliation process ⁠under UNCLOS, where a panel of independent experts examines a dispute and makes recommendations, although ​its findings are not legally binding on either party.

• ‌The U.N.-backed mechanism has, so far, only ​been used by East Timor, also known as Timor-Leste, to successfully resolve a decades-long maritime dispute with Australia.

(Reporting by Devjyot Ghoshal; Editing by John Mair)

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