Taiwan on Sunday restated its sovereignty claim over islands in the South China Sea after the Philippines submitted an official nautical chart to the United Nations concerning a disputed atoll. The move from Manila drew a formal response from Taipei, which said its position on the area remains unchanged.

The development highlights how overlapping territorial claims in the South China Sea continue to trigger diplomatic reactions across the region. In this case, the dispute involves an atoll claimed by the Philippines, Taiwan and Beijing, making even administrative or legal steps closely watched by all sides.

Taiwan’s statement underscored that it still considers the islands and related maritime areas part of its sovereign territory. By responding soon after the Philippine filing, Taipei signaled that international submissions tied to contested waters can quickly become part of a broader sovereignty debate.

The latest exchange adds to continuing tensions over competing claims in the South China Sea, where governments frequently use maps, legal documents and official statements to reinforce their positions. Taiwan’s reaffirmation shows that, despite the limited snippet of the filing itself, the issue remains politically sensitive and strategically important.