He also said IOCAS did not consult with the interested parties in naming the features as strongly encouraged by the SCUFN.
The IOCAS reportedly discovered the undersea features in 2004 and proceeded to apply for their naming in 2014 and 2016.
Officials also confirmed reports that IOCAS and apparently other Chinese agencies had been surveying Philippine Rise in the past without permits from the government.
Cesar Villanoy, a faculty member in the UP-MSI, said this was because the IOCAS
required that they board the ship from China and from there travel nonstop to the Philippine waters, and the rest of the study period which he said was scheduled for one month.
Founded in 1950 and based in Qingdao, Shandong Province, IOCAS is China's first ocean research institute with almost 500 scientific and technical personnel, according to its website.
IOCAS scientists had been conducting research in Benham Rise and in the West Philippine Sea as early as 2013, according to the website.