U.S. Accuses China of Targeting Panama-Flagged Ships After Panama Canal Port Dispute
U.S. Secretary of State Marco Rubio has accused China of “bullying” Panama-flagged vessels by detaining or delaying dozens of them in Chinese ports. The actions followed Panama’s Supreme Court ruling in January that invalidated contracts held by a Hong Kong-based company’s subsidiary operating ports on both sides of the Panama Canal.
Panama seized control of the two critical ports earlier this year from the subsidiary of the Hong Kong conglomerate. In response, a Chinese Foreign Ministry spokesperson, Guo Jiakun, stated that China would “take all measures necessary to firmly protect the legitimate and lawful rights and interests of Chinese companies.”
Public data from the Tokyo Memorandum of Understanding (Tokyo MOU), a port state control organization involving 22 authorities in the Asia-Pacific region, shows that in March, 124 ships were detained in Chinese ports for inspection. Of these, 92—or nearly 75 percent—were flagged in Panama.
These Panama-flagged ships faced detentions ranging from one day to as long as 10 days before release. The inspections represent a significant portion of overall detentions during that period.
Laura DiBella, chair of the commission referenced in Rubio’s statement, noted that “Secretary Rubio’s statement highlights the disruptive effects of the government of China’s actions against Panama-flagged vessels.”
Panama-flagged ships are among the most common in global maritime trade, chosen by many owners for their open registry, which allows operation under Panamanian regulations while often benefiting from lower costs and fewer restrictions. Professional drivers hauling containerized freight to U.S. ports frequently encounter these vessels, as they handle a large share of transpacific and transatlantic cargo volumes.
The Panama Canal remains a vital artery for North American trucking networks. It facilitates the movement of goods from Asia and South America into East Coast and Gulf Coast ports, feeding directly into over-the-road hauls across the continental U.S. Disruptions at canal-adjacent ports or to Panama-flagged carriers can ripple through supply chains, potentially delaying container releases and impacting driver schedules.
For truckers, Panama-flagged ships mean reliable throughput at key hubs like Balboa and Cristobal, the ports now under renewed national control. The Hong Kong conglomerate had operated these facilities, handling container traffic essential for commodities such as electronics, apparel, and automotive parts—much of which ends up on flatbeds and reefers bound for inland distribution centers.
Detentions in Chinese ports, even if brief, introduce uncertainty for vessel operators and their onshore partners. A ship held for inspection misses scheduled berths, which can cascade into port congestion elsewhere and tighter load availability for drivers at destination terminals.
China’s ports, including major facilities like Shanghai, Ningbo, and Shenzhen, are primary loading points for U.S.-bound cargo. Heightened scrutiny on Panama-flagged tonnage could affect turnaround times, influencing fuel costs, crew rotations, and the timing of cargo handoffs to trucking fleets.
The Tokyo MOU data underscores the scale: 92 detentions out of 124 in one month alone. While each lasted only days, the concentration on one flag state draws attention from maritime regulators and fleet managers who rely on these ships for consistent service.
Panama’s decision to strike down the port contracts stemmed from a Supreme Court ruling, reasserting national oversight of strategic infrastructure. The canal handles about 5 percent of global maritime trade, with trucks playing a key role in the final miles from U.S. gateway ports.
U.S. officials, through Rubio, expressed concerns that China’s response raises “serious concerns about the use of economic tools to undermine the rule of law in Panama, a sovereign nation.” This points to broader geopolitical frictions over control of trade chokepoints.
For independent drivers and fleet operators, the incident highlights vulnerabilities in international shipping. Panama’s registry flags over 8,000 vessels worldwide, carrying everything from bulk dry goods to refrigerated perishables that require just-in-time delivery.
Any pattern of targeted delays could prompt shipowners to rethink flagging choices, potentially shifting volumes to other registries like Liberia or Marshall Islands. Such changes might alter port call patterns, affecting trucking demand at specific U.S. gateways.
The allegations add to existing tensions between the U.S. and China, occurring ahead of President Donald Trump’s scheduled visit to Beijing in May. Truckers monitoring transpacific rates may note how diplomatic strains influence freight flows and spot market opportunities.
China maintains that its actions protect its companies’ interests following the contract annulment. Port state control inspections, governed by international conventions like the Paris and Tokyo MOUs, allow authorities to verify compliance with safety and environmental standards.
However, the disproportionate focus on Panama-flagged ships in March data has fueled U.S. claims of harassment. Drivers hauling import cargo should track vessel tracking platforms like MarineTraffic for updates on affected ships, as delays in Asia could mean later arrivals at Long Beach, New York, or Savannah.
In the context of global logistics, the Panama Canal ports serve as the primary interface for canal transit. With Panama regaining control, operations continue under government direction, ensuring continuity for the container volumes that sustain U.S. trucking lanes.
Professional drivers benefit from stable canal access, as it supports predictable import schedules. The brief detentions reported did not halt voyages entirely, but they serve as a reminder of how international disputes can touch everyday hauls.
Stakeholders in the trucking sector will watch for further data from Tokyo MOU and similar bodies to assess if March’s pattern persists. Reliable vessel movements remain essential for aligning truck capacity with container arrivals.