U.S. Customs and Border Protection (CBP) announced on October 3 the details of port fees to be imposed on vessels owned, operated, or constructed by Chinese entities, as well as all foreign-manufactured car carriers.

These fees include:

- Effective October 14, 2025, vessels owned or operated by Chinese entities arriving at U.S. ports will be charged $50 per net ton.

- Effective October 14, 2025, vessels built in China arriving at U.S. ports will be charged $18 per net ton or $120 per container unloaded, whichever is higher.

- Effective October 14, 2025, car carriers arriving at U.S. ports will be charged $14 per net ton.

China recently amended the Regulations of the People's Republic of China on International Maritime Transport, adding provisions stipulating that if a country or region that has signed a maritime transport-related treaty with China violates the agreement, harms China's interests, or obstructs the achievement of treaty objectives, the Chinese government has the right to demand the cessation of the violation and the adoption of remedial measures. If necessary, China may suspend or terminate the fulfillment of relevant obligations.

Furthermore, should any country or region impose discriminatory restrictive measures against China's maritime enterprises, vessels, or seafarers, and if effective remedies cannot be obtained through existing treaties, the Chinese government may implement countermeasures. These may include, but are not limited to: imposing special fees on vessels from that country or region, restricting their access to Chinese ports, or prohibiting them from obtaining China's maritime-related data and conducting business operations.