Beijing Claims Tokyo-Manila Talks Cover Area East of Taiwan

China has condemned maritime boundary negotiations between Japan and the Philippines, declaring the talks “illegal and void.” The Chinese government asserts that the discussions cover maritime areas east of Taiwan where China maintains its own claims to an exclusive economic zone (EEZ).

Mao Ning, a spokesperson for the Chinese Foreign Ministry, stated that the negotiations between Tokyo and Manila infringe upon China’s sovereign rights and interests. The dispute focuses on the overlapping claims in the waters east of Taiwan, a region of significant strategic importance for shipping lanes and resource management.

The Chinese government maintains that any bilateral agreement regarding maritime borders in this specific region is invalid if it ignores China’s existing claims. Beijing argues that its rights in these waters are established and that the collaboration between Japan and the Philippines constitutes an attempt to unilaterally redraw maritime boundaries.

“Illegal and void”

Mao Ning, Chinese Foreign Ministry spokesperson, regarding Japan-Philippines maritime border talks

The tension arises from differing interpretations of the United Nations Convention on the Law of the Sea (UNCLOS). While Japan and the Philippines generally advocate for a strict adherence to UNCLOS to define EEZs based on land territory and coastlines, China frequently cites historical rights and its own interpretations of maritime law to claim vast areas of the South China Sea and the surrounding Pacific waters.

In the Philippines, the administration of President Ferdinand Marcos Jr. Has moved to strengthen maritime and security ties with Tokyo. This alignment includes increased cooperation in patrolling contested waters and the sharing of intelligence regarding regional maritime security. The current negotiations regarding maritime borders are part of a broader effort by Manila and Tokyo to synchronize their legal and operational approaches to maritime boundaries.

Japan’s claims in the region are partially tied to Okinotori, a remote coral atoll in the Pacific. Tokyo uses Okinotori to claim a wide EEZ that extends far into the Pacific, a position that has been contested by China in the past. The intersection of Japan’s EEZ claims from Okinotori and the Philippines’ eastern maritime boundaries creates the specific zone of contention that Beijing is now challenging.

The geopolitical friction is further complicated by the security posture of Japan. Political figures such as Sanae Takaichi have advocated for a robust defense and a firm stance against Chinese maritime expansion. This political environment in Tokyo supports the deepening of ties with Manila, including the potential deployment of maritime assets to support Philippine coast guard operations.

Military analysts point to the role of naval assets in maintaining these claims. Japan continues to utilize its fleet, including Abukuma-class destroyers, to maintain a presence in its claimed waters and ensure the freedom of navigation in the corridors surrounding Taiwan and the Philippine Sea.

The area east of Taiwan is particularly sensitive because it serves as a primary transit route for energy imports and commercial shipping. Any agreement between Japan and the Philippines that formally delineates a border in this area could be viewed by Beijing as a strategic effort to encircle China’s maritime access or limit its influence in the Western Pacific.

As of May 30, 2026, neither Tokyo nor Manila has issued a formal response to the specific claims made by Mao Ning, though both nations have previously stated that their bilateral cooperation is consistent with international law and intended to promote regional stability.