How much did the Hague arbitration actually cost the Filipino taxpayer?

The Peace Palace
(The Peace Palace at the Hague, The Netherlands)

The Aquino government was not candid enough about everything the public needed to know about the arbitration process.

Contrary to what the public has been led to believe, the Permanent Court of Arbitration (PCA) is not a real court but a mere provider of dispute resolution services to the international community; an intergovernmental organization which began in 1899, but not an organ or institution of the United Nations, which was founded only in 1945. It is said to rent space at the Peace Palace, at The Hague, a building owned by the Carnegie Foundation, where the International Court of Justice (ICJ) is headquartered; but it has nothing whatsoever to do with the World Court.