A United Nations arbitral tribunal in The Hague heard some of the Philippines’ territorial claims over the disputed Spratly Islands in the South China Sea on Tuesday.
A delegation of nearly 50 lawyers and representatives for the Philippines gathered to present their case for territorial claims and usage rights in the South China Sea.
The move to bring the issue to court was prompted by China’s program of building airstrips and defenses on some of the islands.
The Philippine claims contest China's assertion that it has sovereignty over waters surrounding its island construction projects in the Spratlys, and its interests in an area of the South China Sea encircled by its “nine-dash line.”
Other countries involved in the dispute, including Vietnam, Taiwan, Malaysia, Brunei and Indonesia, are said to be watching the proceedings closely to determine whether to file claims of their own.
Meanwhile, Beijing on Tuesday insisted that the Philippines breached the bilateral consensus between the two countries as it filed an arbitration case before the Permanent Court of Arbitration under the United Nations.
"In an attempt to negate China's territorial sovereignty and maritime rights and interests in the South China Sea, the Philippine side unilaterally initiated the arbitration in breach of bilateral consensus with China and its commitment in the Declaration on the Conduct of Parties in the South China Sea," Chinese Foreign Ministry spokesperson Hong Lei said in a press conference.
Beijing has in recent years rapidly built artificial islands, which neighbours fear will be used as military outposts. Manila hopes that a ruling in its favour from the court, which was established in 1899, could put pressure on Beijing to rein in its territorial ambitions.
The Philippines' case is based on the United Nations Convention on the Law of the Sea (UNCLOS) - a pact that does not cover matters of sovereignty, but outlines a system of territory and economic zones that can be claimed from features such as islands, rocks and reefs.