MANILA: The Philippines has asked a United Nations body to formally recognize the extent of its undersea continental seabed in the South China Sea, where it would have the exclusive right to exploit resources, the Department of Foreign Affairs said Saturday, in a move that rejects China's vast territorial claims to the region. The Philippine government submitted information to the UN Commission on the Limits of the Continental Shelf on the extent of its undersea shelf in the South China Sea, off western Palawan province, after more than a decade and a half of scientific research, the department said. China did not immediately comment but it will likely contest the Philippine move. The undersea region where the Philippines seeks to formally establish its sovereign rights under the UN Convention on the Law of the Sea, or UNCLOS, covers the Spratlys, a chain of islands, islets, reefs and atolls that has been fiercely contested over the years by China, the Philippines, Vietnam, Malaysia, Brunei and Taiwan. Indonesia has also confronted Chinese coast guard and fishing fleets in the gas-rich Natuna sea in the fringes of the South China Sea.