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Chinese customs officers in the coastal province of Shandong have confiscated sixty thousand maps that "improperly identified" the self-ruled island of Taiwan, which Beijing considers part of its territory.

The maps, officials stated, also "failed to include important islands" in the disputed South China Sea waters, where Beijing's claims conflict with those of its neighbors, including the Philippines and Vietnam.

The "problematic" maps, destined for overseas markets, cannot be sold because they "endanger national unity, sovereignty and territorial integrity" of the People's Republic of China, officials confirmed.

Maps are a sensitive topic for China and its rivals for coral formations, maritime features and rock formations in the South China Sea.

Specific Violations

Customs authorities said that the maps also omitted the nine-segment line, which outlines China's territorial assertion over nearly the entire South China Sea.

The boundary consists of nine dashes which extends hundreds of miles southeastern direction from its southernmost province of Hainan Island.

The intercepted cartographic items also omitted the oceanic demarcation between China and the Japanese archipelago, customs representatives stated.

Taiwan Status

Authorities said the maps incorrectly labeled "the Taiwan region", without clarifying what exactly the incorrect labeling was.

China sees self-ruled Taiwan as its sovereign land and has kept open the possibility of the use of military action to unify with the island. But Taiwanese authorities considers itself different from the mainland China, with its own constitution and democratically-elected leaders.

Geopolitical Tensions

Conflicts in the disputed maritime region sometimes intensify - most recently over the weekend, when ships from China and the Philippine government were involved in another encounter.

Manila accused a Chinese ship of deliberately ramming and deploying water jets at a Philippine government vessel.

But Chinese officials claimed the confrontation happened after the Philippine vessel ignored repeated warnings and "dangerously approached" the Chinese ship.

Previous Precedents

The Philippine government and Vietnam are also particularly sensitive to representations of the disputed maritime region in cartographic materials.

The 2023 Barbie film from 2023 was banned in the Vietnamese market and censored in the Philippine release for showing a South China Sea map with the controversial demarcation.

The statement from China Customs did not say where the confiscated materials were destined for sale. China supplies much of the international products, from holiday decorations to stationery.

The interception of "non-compliant cartographic materials" by customs officials is relatively common - though the number of the maps intercepted in the Shandong region significantly exceeds earlier interceptions. Merchandise that do not meet standards at the customs are eliminated.

In March, border authorities at an airport in the coastal city intercepted a shipment of one hundred forty-three marine maps that included "obvious errors" in the territorial boundaries.

In late summer, border authorities in the northern province seized a pair of "non-compliant charts" that, in addition to other issues, contained a "misdrawing" of the Tibet's boundaries.