In the arbitration proceedings, The Republic of the Philippines v. The People’s Republic of China, The Republic of the Philippines have conveyed a further 12 volumes of supplementary submissions totaling over 3,000 pages. This is in response to the 26 questions submitted by the Arbitral Tribunal to the Philippines.
For more information on the submission see the Statement of the Department of Foreign Affairs (Philippines). Further information on the arbitration proceedings can be found here.