The latest salvo in the US-China trade war sees both nations imposing substantial port fees on each other’s shipping vessels. This tit-for-tat escalation, starting with China’s new levies on US-linked ships and the US’s earlier proposals targeting Chinese-built vessels, promises significant disruption to global supply chains, potentially redirecting cargo to Canadian and Mexican ports and driving up costs for businesses and consumers worldwide.
The intricate web of global trade faces a new and formidable challenge as China officially implements special port fees on US-owned, operated, built, or flagged vessels. This move, which began on Tuesday, October 13, 2025, is a direct response to similar port fee proposals from the United States targeting China-linked ships. The escalating measures threaten to profoundly impact international shipping patterns, increase operational costs, and ignite further tensions between the world’s two largest economies.
The Spark: A Tit-for-Tat Escalation
Beijing’s decision to levy port fees comes as a direct countermeasure to Washington’s earlier announcement of new charges on China-linked ships, set to take effect on October 14. According to China’s transport ministry, these actions are intended to “safeguard the legitimate rights and interests of the Chinese shipping industry and enterprises while ensuring fair competition in international shipping.” The ministry also highlighted that the US actions “seriously violated WTO rules and the China-US maritime transport agreement,” causing significant disruption to trade, as reported by Global Times.
China’s newly implemented fees carry specific provisions:
- They apply to US-owned, operated, built, or flagged vessels.
- Ships where US enterprises, organizations, or individuals hold a direct or indirect stake of 25 percent or more are also subject to the fees.
- Initially, the charge is 400 yuan ($56) per net ton, increasing annually on April 17 for the subsequent three years.
- Fees are collected at the first port of entry on a single voyage or for the first five voyages within the year, with an annual billing cycle commencing April 17.
- Chinese-built ships, empty ships entering Chinese shipyards for repair, and other specially designated vessels are exempted.
- Failure to pay will result in stalled import and export procedures for the non-compliant ship.
On the US side, the Office of the US Trade Representative (USTR) proposed its fees following an investigation initiated in April 2024. This probe highlighted China’s significant increase in global shipbuilding tonnage—from 5% in 1999 to over 50% by 2023, largely fueled by state subsidies—while US shipbuilding declined dramatically from 70 vessels in 1975 to approximately five annually.
The proposed US fees are multifaceted:
- A $1 million port call fee for vessels operated by Chinese companies.
- A $1.5 million fee per port call for ships built in China.
- A $1 million port entry fee for shipping lines that have placed more than 50% of new vessel orders with Chinese shipyards.
- For non-Chinese shipowners operating Chinese-built vessels, fees could be up to $1.5 million per port entry, varying based on the proportion of Chinese-built vessels in their fleet.
- The USTR has considered alternative structures, such as fees adjusted by the number of Chinese-built ships in a fleet or based on the tonnage of unloaded vessels, to mitigate the economic impact.
Ripple Effects: The Looming Supply Chain Crisis
The proposed port fees have triggered widespread concern among US industries. Nearly three dozen groups representing US importers, exporters, manufacturers, farmers, retailers, railroads, and ports have strongly opposed the USTR’s plan. They warn that such fees could be “economically devastating,” drastically increase costs for US importers, make US exports uncompetitive, and worsen the trade deficit.
Experts like ocean shipping expert John D. McCown estimated that fees on a Chinese-built, Chinese-flagged ship could amount to as much as $2,100 per 40-foot container, nearly matching the current cost to ship a container from Shanghai to Los Angeles. This drastic increase is not merely an inconvenience; it represents a fundamental shift in the economics of international trade.
Supply chain management company Flexport underscored the financial burden, noting that approximately 30% of the top 20 ocean carriers’ fleets are made up of Chinese vessels. They anticipate that fees could add over $3 million per trip, a significant figure compared to a typical journey’s revenue of $10 million, as stated in an April 2 note. For detailed analysis on the potential impact, see insights from Flexport’s blog.
Shifting Tides: The Rise of Alternative Shipping Routes
One of the most immediate and tangible impacts of these fees is the potential for a significant rerouting of maritime traffic. Shipping lines, seeking to minimize or avoid the steep charges, are likely to divert cargo from US ports. This could lead to a surge in container volume at ports in Canada and Mexico.
Key ports identified as potential beneficiaries include:
- Vancouver and Prince Rupert in British Columbia, potentially siphoning business from Seattle and Tacoma.
- Halifax and Saint John in Canada, which could gain volume currently handled by the Port of New York and New Jersey.
- Lazaro Cardenas on Mexico’s Pacific coast, seen as a congestion-free alternative to Los Angeles and Long Beach, particularly benefiting rail operators like CPKC.
Railroads such as Canadian National (CN) and Canadian Pacific Kansas City (CPKC) are closely monitoring these developments, recognizing the economic incentive created for ocean carriers to use non-US ports. While this presents an opportunity for these alternative gateways, it also poses challenges, as increased volume could lead to congestion and significant disruptive effects, potentially contributing to higher inflation.
The port fee dispute adds another layer to existing trade tensions. Weeks ago, US President Donald Trump announced plans to raise tariffs on Chinese imports to 100% from November 1 and impose export controls on critical software, following China’s expansion of export limits on rare earth minerals. These broader tariff measures, alongside the port fees, underscore a deepening economic rift between the two global powers, a development closely watched by Reuters.
The Bigger Picture: National Interests and Global Trade
At its core, the USTR’s proposal aims to curb China’s growing commercial and military dominance in the maritime sector and revitalize the US domestic shipbuilding industry. However, China’s foreign ministry has countered this stance, reiterating that such measures would not revitalize America’s shipbuilding industry but only “harm others and itself.”
The long-term impact on global trade and supply chain resilience remains a critical concern. While the US administration is reportedly considering softening its proposed fee structure due to significant industry pushback, the implementation of China’s fees ensures that the issue will continue to create uncertainty. The ongoing dialogue, or lack thereof, between Washington and Beijing will dictate whether this escalation leads to a sustained fragmentation of global shipping networks or a path toward de-escalation and renewed trade discussions.
For businesses and consumers reliant on international shipping, adaptability and resilience will be paramount. The evolving landscape of port fees, tariffs, and trade restrictions demands constant vigilance and strategic adjustments to navigate the turbulent waters of US-China trade relations.
