The US Trade Representative announced on 10 November 2025 that actions under its Section 301 investigation of China’s Targeting of the Maritime, Logistics and Shipbuilding Sectors for Dominance were suspended from 12:01 a.m. Eastern Standard Time on 10 November 2025 through 11:59 p.m. Eastern Standard Time on 9 November 2026, according to USTR’s own press release announcing the suspension. The change was recorded in a Federal Register notice. The suspension implements a component of the US-China limited trade deal announced on 1 November 2025 following the Trump-Xi summit. USTR is negotiating with China during the suspension period on the underlying issues raised by the investigation, and has opened a public comment docket on the suspension.

Section 301 of the Trade Act of 1974 gives the US Trade Representative authority to investigate and act against foreign trade practices considered unfair to US commerce. USTR initiated the maritime and shipbuilding investigation in April 2024 and issued affirmative findings that China’s practices were actionable in January 2025, per USTR’s Section 301 topic page. The proposed remedies included port fees on Chinese-built vessels calling US ports, incentives for US-flagged and US-built alternatives, and a broader push to rebuild American shipbuilding capacity. The port-fee element was the specific measure with the most direct exposure for Asian carriers, and it is the specific measure now suspended. The Congressional Research Service has summarised the shipbuilding dispute for legislators.

The exposure is uneven. State-owned Chinese carriers, led by COSCO Shipping (China Ocean Shipping Company) and its Hong Kong subsidiary OOCL (Orient Overseas Container Line), draw their newbuildings overwhelmingly from Chinese yards and carry the heaviest Chinese-built exposure on trans-Pacific services. Taiwanese carriers Evergreen, Yang Ming and Wan Hai operate mixed fleets that include Chinese-built tonnage, particularly among recent ultra-large containership orders. South Korean carrier HMM (formerly Hyundai Merchant Marine) and the Japanese joint venture ONE (Ocean Network Express, formed by NYK, MOL and K Line) carry more Korean-built and Japanese-built tonnage, which gives them more scope to place non-Chinese-built ships on US services. Southeast Asian regional feeder operators run a larger proportion of Chinese-built vessels, a legacy of the 2018 to 2024 order cycle, when Chinese yards priced below their Korean and Japanese competitors. These fleet-composition patterns are VCA’s reading of publicly available fleet records and carrier disclosures; the precise Chinese-built share each carrier holds is not established here.

If the suspension expires without a negotiated resolution and USTR re-imposes port fees on Chinese-built tonnage, the cost falls disproportionately on the Chinese carriers and, in the next tier, on the Taiwanese carriers.

About four months to expiry, at the time of publication, is enough time for meaningful operational adjustment but not enough for a fleet change. Carriers with Chinese-built exposure have three practical levers. First, they can redeploy Chinese-built tonnage away from US trans-Pacific services onto intra-Asia or Asia-Europe trades where the port-fee exposure does not apply, subject to a partner alliance carrier backfilling the trans-Pacific capacity. Second, they can restructure contract terms currently being written for 2027 shipper commitments to include explicit pass-through mechanisms for any re-imposed fees. Third, they can lobby through the World Shipping Council and their trade associations during the ongoing USTR-China negotiation.

New-build order changes are the fourth theoretical lever but operate on the wrong timescale. Orders placed today for Korean or Japanese yards deliver in 2028 or 2029, well after the current window closes.

The realistic negotiated outcomes fall into three categories. A full-resolution outcome would include a US-China agreement on maritime and shipbuilding practices and terminate the Section 301 action altogether. A partial-resolution outcome would extend the suspension for a further period with narrower conditions attached. A no-resolution outcome would allow the suspension to expire on 9 November 2026 with USTR re-imposing the originally proposed remedies, potentially at reduced rates.

On VCA’s reading, the partial-resolution outcome is the base case: neither the Trump administration nor Xi’s government has an obvious incentive to close the negotiating window while broader trade discussions are ongoing. That base case does not remove the need to plan for the no-resolution outcome, because carriers with concentrated Chinese-built exposure need to know what fee re-imposition would do to their trans-Pacific service economics.

Three signals. The first is any interim USTR statement on the state of the negotiation around the September-October 2026 window, when the executive branch will need to signal its path on expiry. The second is the composition of new-build orders placed by Asian carriers with Korean and Japanese yards through 2026, which will indicate whether the industry is pricing in re-imposition. The third is the tone of the World Shipping Council’s public commentary on Section 301, which will shift ahead of any policy announcement.

The suspension has paused the fee risk while the underlying dispute stays open. With about four months until the window closes, that gap is the operational reality carriers must plan around now.