Without a written agreement between President Duterte and Chinese President Xi Jinping, it is uncertain how long Filipinos can fish at Panatag Shoal unhindered by China, a maritime law and security expert said on Tuesday. "The situation can change anytime because their is no written, no firm commitment, no clear parameters ... we have no idea what really is the basis and legal situation," Jay Batongbacal said, director of the University of the Philippines Institute for Maritime Affairs and Law of the Sea, told the Inquirer by phone. National Security Adviser Hermogenes Esperon on Sunday said that no agreement was reached during discussions between Filipino and Chinese officials about Panatag Shoal during Mr. Duterte's visit to China last month.

Dizon, N. (2016, November 2). PH fishing still uncertain, says expert. Philippine Daily Inquirer, p. A10.