The Philippines has sought to debunk China's claims to disputed islands in the South China Sea, court officials have said as an international tribunal wrapped up a five-day hearing.
Although Beijing has refused to take part in the hearing before the Permanent Court of Arbitration, judges have now given China until January 1 to write a rebuttal to the case laid out by Manila in the Hague.
"We view China as a valued friend, and it is precisely to preserve that friendship that we initiated this arbitration," Philippine Foreign Secretary Albert Ferreros del Rosario said yesterday as he closed his country's case, according to a court statement.
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But it is also a party to the UN Convention on the Law of the Sea.
Manila has called for the tribunal, set up in 1899, to rule on the dispute, accusing Beijing of flouting the convention.
The Philippines argued "China's claims to sovereign rights jurisdiction, and to 'historic rights', with respect to the maritime areas of the South China Sea... Are contrary to the Convention," the court said in a statement issued late yesterday.
The Philippines also believes China has failed "in its duty to prevent its nationals from exploiting resources over which the Philippines has sovereign rights and has failed to respect traditional fishing rights at Scarborough Shoal," the statement said.
Beijing had also failed to protect the marine environment by using destructive fishing methods such as cyanide and explosives, while its ships were proving a hazard in the sea.
Even after Manila launched the court proceedings, Beijing had exacerbated the tensions by "building artificial islands at nearly all of the maritime features presently under its control," Philippine officials told the court.
The hearing was held behind closed doors. But Australia, Indonesia, Japan, Malaysia, Singapore, Thailand and Vietnam were allowed to have observers present.
Beijing has never precisely defined its claims to the strategic South China Sea, through which about a third of all the world's traded oil passes.