China Detaining Panama-Flagged Ships Over Port Dispute

Federal Maritime Commission says China's actions could harm U.S. trade

Mar. 27, 2026 at 8:18pm

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The U.S. Federal Maritime Commission (FMC) is closely monitoring a surge in detentions of Panama-flagged vessels in China that appears tied to a Panama court ruling against Hong Kong-based CK Hutchison's control of key port terminals. The FMC says China's actions could result in significant commercial and strategic consequences for U.S. shipping.

Why it matters

The Panama Canal is a critical global trade route, handling about 5% of maritime trade worldwide. The dispute over control of the ports on either side of the canal has geopolitical and economic implications, as China seeks to maintain influence while the U.S. pushes to limit Chinese control of strategic assets.

The details

Following a Panama court ruling that invalidated CK Hutchison's concession to operate the Balboa and Cristobal port terminals, the Panamanian government appointed subsidiaries of Maersk and MSC as interim operators. In response, China has detained nearly 70 Panama-flagged ships since March 8, according to the FMC. The detentions appear intended to punish Panama for the port transfer, which came amid U.S. pressure to curb Chinese influence around the canal.

  • On March 8, China began detaining Panama-flagged ships at a rate far exceeding historical norms.
  • In late January, Panama's Supreme Court invalidated the legal framework supporting CK Hutchison's concession to operate the Balboa and Cristobal port terminals.

The players

Federal Maritime Commission (FMC)

The U.S. agency that regulates the maritime industry and is monitoring the situation with the detentions of Panama-flagged ships in China.

CK Hutchison

The Hong Kong-based company that had operated the Balboa and Cristobal port terminals in Panama for nearly 30 years before the concession was invalidated by the Panamanian government.

Maersk

The Danish shipping company that had a subsidiary appointed by Panama as an interim operator of the Balboa and Cristobal port terminals.

Mediterranean Shipping Company (MSC)

The Swiss shipping company that had a subsidiary appointed by Panama as an interim operator of the Balboa and Cristobal port terminals.

Panama

The country that invalidated CK Hutchison's port concession and appointed Maersk and MSC subsidiaries as interim operators, prompting the detentions of Panama-flagged ships by China.

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What they’re saying

“These intensified inspections were carried out under informal directives and appear intended to punish Panama after the transfer of Hutchison's port assets.”

— Laura DiBella, Chair of the Federal Maritime Commission

“Given that Panama‑flagged ships carry a meaningful share of U.S. containerized trade, these actions could result in significant commercial and strategic consequences to U.S. shipping.”

— Laura DiBella, Chair of the Federal Maritime Commission

What’s next

The FMC says it is legally empowered to investigate whether regulations or practices of foreign governments could harm U.S. trade, and it is closely monitoring the situation.

The takeaway

The dispute over control of the Panama Canal ports highlights the geopolitical tensions between the U.S. and China, as both countries vie for influence over critical global trade routes. The detentions of Panama-flagged ships by China could have significant economic consequences for U.S. shipping and trade.