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Territory & Conflict

Inside the $15 Billion Sulu Case: What Comes After December 9?

Published on Dec 05, 2025

After years of legal drama, the $15 billion Sulu arbitration is expected to come to a close in the Paris Court of Appeal on December 9. Eight Filipino claimants claiming to be descendants of the Sultanate of Sulu have taken their case against Malaysia from London to Madrid, Sabah, Luxembourg, The Hague, and Washington. Every court has rejected the claim, and Spanish courts even convicted arbitrator Gonzalo Stampa to jail for defying repeated orders.

 

What does the potential close to this long-running saga mean for Malaysia, the Philippines, and Southeast Asia as a whole?

 

Regional Implications

Malaysia is legally recognized as the rightful owner of Sabah. Closing the door on the Sulu forum shopping protects Malaysia’s national economy, its legal institutions, and prevents foreign funders from turning courts into leverage for private gain.

 

For the Philippines, the dispute is peripheral to real national priorities. Domestically, the country has been

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