Tariff exposure has stopped behaving like a customs-broker problem and started behaving like a product-design problem, according to Priya Anand's latest piece for Manufacturing Today. Her central line — "the cost rides the product" — repositions duty from a back-office accrual to a line item on the bill of materials, and that repositioning redraws the planning map for everyone moving the cargo downstream.

What changes when duty rides the SKU?

For procurement, the exposure used to be a quarterly variance. For product engineering, sourcing and logistics, it is now a live input. A 25% tariff on a specific HTS code no longer changes the landed cost of an existing SKU; it can kill the SKU, force a substitute part, or push the bill of materials to a different country of origin. Anand's argument is that the planning responsibility moves upstream, away from the broker's spreadsheet and into the routing guide, the sourcing scorecard, and the contract manufacturer's capacity calendar.

That shift carries three freight consequences shippers and forwarders should price into the next contract cycle.

How does it redraw ocean and air demand?

• SKU fragmentation rises. Re-engineered parts mean more part numbers per finished good, smaller average order quantities, and more SKUs sharing each 40-foot container. Expect higher cube-out variability on trans-Pacific and intra-Asia headhaul lanes.
• Mode switches accelerate. A tariff-induced sourcing change often comes with a different lead-time profile. Air freight out of South China, Southeast Asia and India tends to gain share when manufacturers re-tool mid-cycle, even at three to four times the ocean cost per kilo, because speed beats duty drag.
• Origin-port shuffling intensifies. When one country of origin becomes punitive, the next cheapest origin rarely has the same port-pair economics. Shippers move from Shenzhen to Haiphong, from Yantian to Tanjung Pelepas, and the carrier schedule on the original string loses volume.

Who carries the new risk?

Carriers and forwarders face a demand-mix problem rather than a pure volume problem. Re-engineered SKUs arrive in different booking patterns: smaller, more frequent, more origin-diverse, and more sensitive to FAK versus commodity-specific rate spreads. NVOCCs that have built tariff advisory desks in 2024 and 2025 are positioned to capture that workflow; carriers running point-to-point commodity products will see more renegotiation on the door.

Trucking and drayage read the same signal at the warehouse door. More SKUs means more pick faces, more storage churn, and shorter dwell windows. Drayage cycles at Los Angeles/Long Beach, Savannah, and New York/New Jersey tighten as shippers re-time inbound containers to match re-engineered production runs.

What should shippers watch next?

Anand's piece does not break new duty numbers; it reframes an exposure that has been sitting in procurement ledgers as a product attribute that engineering, sourcing, and logistics must share. The forward-looking question is whether manufacturers rebuild costing models around tariff scenarios — embedding duty in the design phase — or continue absorbing it as a P&L line item that gets passed through in the next price increase.

That choice will set the tone of container demand on the trans-Pacific and intra-Asia lanes through the next GRI window: stable if costing moves upstream, lumpy if it does not.