AMSTERDAM, Oct 29 (Reuters) - An arbitration court in the Netherlands ruled on Thursday that it has jurisdiction to hear some territorial claims the Philippines has filed against China over disputed areas in the South China Sea.
In a legal defeat for China, the Hague-based tribunal rejected Beijing's claim that the disputes were about its territorial sovereignty and said additional hearings would be held to decide the merits of the Philippines' arguments.
China has boycotted the proceedings and rejects the court's authority in the case. Beijing claims sovereignty over almost the entire South China Sea, dismissing claims to parts of it from Vietnam, the Philippines, Taiwan, Malaysia and Brunei.
The tribunal found it has authority to hear seven of Manila's submissions under the United Nations Convention on the Law of the Sea (UNCLOS) and China's decision not to participate did "not deprive the tribunal of jurisdiction."
The United States, a treaty ally of the Philippines that this week challenged Beijing's pursuit of territorial claims by sailing close to artificial islands China has constructed in the South China Sea, welcomed the decision, according to a senior U.S. defense official.
"This demonstrates the relevance of international law to the territorial conflicts in the South ChinaSea," the official said, speaking on condition of anonymity.
The official added: "It demonstrates that sovereign claims are not necessarily indisputable and it shows that judging issues like this on the basis of international law and international practice are a viable way of, at a minimum, managing territorial conflicts if not resolving them."
State Department spokesman John Kirby told a regular news briefing that in accordance with the terms of UNCLOS, the decision of the tribunal would be legally binding on both the Philippines and China.
John McCain, chairman of the U.S. Senate's armed services committee, hailed the Hague ruling.
"Today's ruling is an important step forward in upholding international law against China's attempts to assert vast and, in my view, questionable claims in the South China Sea," he said.
McCain said Washington should continue to support partner countries and allies such as the Philippines in the face of China's assertiveness, including through routine freedom-of-navigation patrols like the one that angered Beijing this week.
Bonnie Glaser, a South China Sea expert at the Center for Strategic and International Studies in Washington, called the outcome "a major blow for China given that the opinion explicitly rejectsChina's arguments that ... the Philippines has not done enough to negotiate the issues withChina."
The court said it could hear the arguments including one contending that several South ChinaSea reefs and shoals were not important enough to base territorial claims on. China has been building artificial islands on reefs in the sea and claiming control over the waters within a 12-mile (19-km) radius.
On seven other submissions, including that China had violated the Philippines' sovereign right to exploit its own territorial waters, the court said it would reserve judgment about jurisdiction until it had decided the merits of the case.
No date has been set for the next hearings, which will also be closed to the public.
The Permanent Court of Arbitration was established in the Netherlands in 1899 to encourage peaceful resolution of disputes between states, organizations and private parties. China and the Philippines are among its 117 member countries.
(Reporting by Anthony Deutsch and Toby Sterling; Additional reporting by David Brunnstrom and Yeganeh Torbati in Washington; Editing by Tom Heneghan and Ken Wills)