On 25 July 2017, the Singapore Ministry of Law announced that the PCA will set up a staffed office in Singapore, being its first office in Asia. The decision to open up this office is testament to the number of disputes involving states, heard in the region in recent years.

The PCA is an Inter-governmental organisation providing dispute resolution services for disputes involving states, state entities, international organisations and private parties, normally where one of the parties is a state (or an organ of state).

The PCA opened its first overseas office in Mauritius in 2010 mainly in an effort to assist with the promotion of Mauritius as a suitable seat for international Arbitrations with the focus mainly on African disputes involving states.