April 2nd, 2026 – The U.S. Federal Maritime Commission (FMC) is closely watching a noticeable increase in the detention of Panama-flagged vessels by Chinese port authorities, raising concerns about potential disruptions to U.S. container trade. FMC chairman Laura DiBella indicated that these actions appear to exceed typical historical patterns and may carry broader commercial and strategic implications.
The surge in detentions is believed to be linked to recent developments in Panama, where the country’s Supreme Court nullified long-standing operating concessions at the Balboa and Cristóbal ports. These concessions had been held for nearly three decades by Panama Ports Company (PPC), a firm majority-owned by Hong Kong-based CK Hutchison Holdings. The decision effectively removed PPC from its role, triggering a shift in port operations.
In the wake of this change, Panama’s Maritime Authority awarded temporary 18-month concessions to new operators. APM Terminals, part of Maersk, assumed control of the Balboa terminal on the Pacific side of the Panama Canal, while MSC’s Terminal Investment Limited took over operations at Cristóbal on the Atlantic side.
According to DiBella, the inspections of Panama-flagged ships in Chinese ports appear to be more than routine regulatory enforcement. The pattern suggests the possibility of informal directives aimed at penalizing Panama following the reassignment of port assets away from a Hong Kong-linked entity. Given that vessels under the Panamanian flag account for a significant portion of U.S. containerized trade, any disruption could have meaningful consequences for shipping flows tied to the United States.
While the FMC has not announced any formal action beyond monitoring the situation, DiBella emphasized that the agency has the authority to investigate foreign government practices that may create unfavorable conditions for U.S. maritime trade.
Meanwhile, CK Hutchison has initiated international arbitration proceedings against the Panamanian government and its maritime authority, seeking more than $2 billion in damages related to the loss of its concessions.
The ripple effects of the situation are already being felt in shipping operations. Cosco Shipping Lines has suspended calls at the Balboa port and is instead rerouting its services to Manzanillo on the Atlantic side of the canal, signaling a shift in logistics patterns as the situation continues to unfold.
