PHILIPPINES ACCUSES CHINA OF MARINE POISONING IN DISPUTED WATERS

The National Security Council (hereinafter: NSC) of the Philippines accused Chinese fishermen on 13 April 2026 of using cyanide to poison coral reefs in the disputed Spratly Islands. According to NSC officials, the chemical was deployed around Second Thomas Shoal, an area that has been the site of multiple maritime confrontations between the two nations. State authorities in Manila allege that the practice is a deliberate act of environmental sabotage intended to deplete local fish stocks and degrade the maritime ecosystem within the Philippine Exclusive Economic Zone (hereinafter: EEZ).

Evidence Of Chemical Deployment

Philippine Navy spokesperson Rear Admiral Roy Vincent Trinidad stated during a press conference on 13 April 2026 that military personnel seized ten bottles of cyanide from boats launched from Chinese fishing vessels during the previous year. These seizures reportedly occurred in February, July and October 2025. Furthermore, Admiral Trinidad reported that soldiers observed a Chinese crew poisoning waters near Second Thomas Shoal as recently as March 2026, with subsequent laboratory tests confirming the presence of the toxic substance in the water.

Implications For Military Personnel

The NSC has categorised the use of cyanide as a tactical measure to deprive Filipino troops stationed aboard the BRP Sierra Madre of a local food source. Assistant Director-General Cornelio Valencia noted that the poisoning also poses a direct health risk to Navy personnel through potential exposure to contaminated water or the consumption of poisoned fish. Additionally, the state alleges that the resulting erosion of the coral reef structure could eventually compromise the stability of the grounded World War II-era vessel that serves as a military outpost for the Philippines.

Responses From The Chinese State

The government of China has dismissed the allegations as a “farce” and a “groundless smear”. Official statements from Beijing suggest that the seized bottles contained common household items rather than lethal chemicals. News outlets in China have countered the claims by asserting that the Philippines has a documented history of cyanide fishing within its own waters and is utilising the narrative to deflect from its own environmental record. The Chinese Embassy in Manila has not issued a formal diplomatic response to the latest specific charges.

Concluding Outlook

The allegations regarding the use of cyanide mark a significant transition in the South China Sea dispute, shifting the focus from territorial sovereignty to environmental security and biological warfare. By framing the actions of Chinese fishing fleets as “sabotage” rather than mere illegal fishing, the government of the Philippines is likely preparing a legal and diplomatic framework to seek international intervention or compensation through environmental law.

The anticipated trajectory for this development involves the submission of a formal report by the NSC to the Philippine Department of Foreign Affairs, which will serve as the basis for a new diplomatic protest. Given the previous 2016 international ruling that invalidated China’s maritime claims, the Philippines may attempt to leverage these environmental findings to bolster global support for a multilateral patrol mechanism. However, as long as the conflict remains confined to asymmetric maritime tactics, the degradation of the Spratly Islands’ ecosystem is expected to accelerate, potentially leading to a permanent collapse of local fisheries that both nations rely upon for regional food security.