“We have gone beyond determining if there are resources” and “The only issue is now, is it commercially viable,” he said. Roque and Davila were talking about the Joint Marine Seismic Undertaking or JMSU entered into by the Philippines, China, and Vietnam on March 14, 2005. Roque is very knowledgeable about the JMSU, the constitutionality of which the Supreme Court has yet to decide, having been a director of the UP College of Law, Institute of International Legal Studies, which has done extensive studies on the South China Sea issue.

Tordesillas, E. (2018, March 10-11). Roque is best adviser to Duterte on joint exploration with China. The Daily Guardian, pp. 4, 5.