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The PCA only identifies the parties and publishes awards or other information in proceedings under PCA auspices where the parties have so agreed. No information beyond what is set forth on this website will be provided by the PCA.

Pending cases

Inter-State proceedings

The PCA acts as registry in four inter-state proceedings, including: 

Investor-State arbitrations

The PCA acts as registry in eighty-four investor-state arbitrations under bilateral or multilateral investment treaties or investment laws, including: 

Other arbitrations

The PCA acts as registry in forty-six arbitrations or other proceedings under contracts or other agreements to which one party is a state, state-controlled entity, or intergovernmental organization, including: 

Past cases (Partial List)*


The PCA Case Repository contains a full listing of cases commenced since 1996 in respect of which the parties have agreed to publication. In addition, the PCA continues to make information about further public cases since 1902 available on the PCA Case Repository.


* The PCA is gradually making its historic arbitral awards and related documents available electronically.
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