Philippines puts Scarborough Shoal chart on UN record amid dispute

Manila turns to the international record

The Philippines deposited an official nautical chart for Bajo de Masinloc, or Scarborough Shoal, with the United Nations Secretariat on July 29, formally publishing the baselines and maritime zones it says apply around the disputed feature. The filing was made under Article 16 of the UN Convention on the Law of the Sea, which requires coastal states to publicize charts or coordinates used to measure their territorial seas.manilatimes +1

The National Mapping and Resource Information Authority prepared Chart 1567, “Bajo de Masinloc and Approach,” using recognized hydrographic and geodetic standards. Manila says the chart identifies a territorial sea extending up to 12 nautical miles from the shoal’s normal baselines and a contiguous zone reaching from 12 to 24 nautical miles.manilatimes

A legal marker confronts physical control

China rejected the deposit, calling the Philippine baselines “illegal, null and void” and a grave infringement of Chinese sovereignty.manilatimes Beijing has controlled access to the shoal since a 2012 standoff, with Chinese coast guard and maritime militia vessels regularly stationed near its entrance.rappler The filing therefore changes the documentary record, not control at sea.

The distinction matters because the 2016 arbitral award did not decide sovereignty over Scarborough Shoal. It did reject the legal basis for China’s sweeping historic-rights claim within its nine-dash line and found the shoal to be a traditional fishing ground for Filipino, Chinese and Vietnamese fishers.rappler +1 China has refused to recognize that ruling.

A broader campaign through maritime law

The chart deposit came as a Philippine delegation also presented a separate extended continental shelf submission for the West Palawan region to a UN commission. That bid seeks seabed and subsoil rights beyond 200 nautical miles, potentially extending as far as 350 nautical miles where geological evidence supports the claim; it would not enlarge Philippine territory or create new fishing rights.philstar +1

Taken together, the moves show Manila building a layered legal record rather than trying to dislodge Chinese vessels directly. Depositing the chart makes its claimed limits publicly accessible and preserves baseline information as coastlines face sea-level rise.manilatimes +1 Yet the immediate risk is diplomatic escalation: Beijing can answer with protests and continued patrols, while Manila’s practical access will still depend on conditions around the shoal. The gap between legal documentation and enforcement remains the dispute’s central pressure point.