Transpacific container rates are heading lower — even though China and the United States agreed yesterday to mutually cut tariffs on $30bn worth of goods, many of which move in boxes.

The agreement, informally dubbed the "30-for-30" deal, will reduce tariffs on more than 90% of listed products to standard most-favoured-nation rates. It covers a combined 1,696 product lines across the two sides' lists.

The Chinese list alone includes 1,619 items. The remainder sit on the US side of the ledger, together covering a substantial share of the bilateral trade that had been slapped with punitive duties during the dispute.

There is a catch, and it matters for anyone booking transpacific capacity this quarter: both governments must first complete their domestic legal procedures. Only then do the tariff cuts take effect — simultaneously, on both sides. Until that happens, shippers face the same duty structure that has shaped their sourcing and routing decisions for months.

Too late for the rate cycle

The timing is the problem. The truce lands as transpacific spot rates are already weakening. Carriers had hoped that a durable de-escalation in the trade dispute might trigger a restocking-driven surge in eastbound bookings — the kind of volume bump that supports freight rates during contract negotiations and into the peak season.

That support is unlikely to materialise in time. Spot rates on the trade are set to fall regardless of the diplomatic progress, because the market has already priced in the demand picture: inventories drawn down cautiously, frontloading completed ahead of earlier tariff deadlines, and equipment and vessel capacity still ample on the lane.

For shippers, the combination is unusually favourable on the cost side. Falling spot rates mean lower short-term procurement costs on the China-US lanes, and the prospective tariff relief — once domestic procedures are complete — will trim landed costs further for goods on the agreed lists. Procurement teams with flexibility can wait on both fronts: book short now, and let the duty cuts land before committing to larger volumes.

For carriers, the arithmetic runs the other way. Revenue per FEU on the transpacific is trending down at precisely the moment when the trade-policy outlook improves. That squeeze typically pushes carriers toward capacity management — blank sailings, slot withdrawals and consolidated strings — to defend rate levels. Expect carriers to lean on such levers if the slide accelerates.

Forwarders sit between the two. Weakening spot rates compress margins on buy-sell business, while the tariff cuts will require careful customs and classification work as 1,696 product lines move to MFN treatment. Clients will demand clarity on which SKUs benefit, and when — a question hinging on the pace of each government's domestic ratification process.

What to watch

Three signposts will determine whether the truce eventually bends the rate curve upward. First, the completion of domestic legal procedures on both sides, which sets the effective date for the simultaneous cuts. Second, any evidence of restocking demand from US importers once duties drop — the volume signal carriers are waiting for. Third, carrier capacity discipline on the lane in response to the current softening.

Until those signals appear, the direction of travel on the transpacific remains downward: the truce is real, but the rate relief it might eventually deliver to carriers has not arrived — and spot market pricing for China-US shipments is set to keep sliding in the interim.