Market Data

When to Lock In Imported Resin: Reading the $6.11B-a-Month Import Trend Before You Quote

A procurement-timing playbook that pairs the rising plastics-import trend with resin PPI and feedstock spot prices to tell buyers when to forward-buy, when to hedge, and when to hold.

Buyers facing quotes tied to imported resin should front-load contracts before feedstock-driven price pass-through when the import series is rising, because import value climbs when both volume and resin PPI move together. As of May 2026, U.S. plastics imports stand at $6.11B a month and the Census International Trade series is rising, up about 7.6% from a year ago, which makes the timing question live rather than theoretical.

The three-signal check before any resin commitment

The import series alone cannot tell you whether to buy, it tells you whether the question is urgent. Pair it with two upstream signals. First, resin PPI: if producer prices for plastic resins are moving the same direction as the import line, the move is price-driven and pass-through to your quote is likely within one to two contract cycles. Second, feedstocks: ethane and propane set the marginal cost of U.S. polyethylene and polypropylene, and natural gas sets the energy floor, so a sustained feedstock move usually reaches resin lists within a quarter. When all three point the same way, treat the direction as confirmed. When the import line moves alone, suspect a volume or currency story instead of a price story, a weaker dollar raises recorded import value with no change in the resin market at all, and that is not a reason to rush a buy.

The playbook: front-load, hedge, or hold

The decision rules are mechanical. If the import trend is rising and resin PPI confirms, front-load: pull the next quarter's resin requirement into the current contract window and quote new work off replacement cost, not trailing average. If the trend is rising but PPI is flat, hedge rather than hoard, negotiate a price cap or a shorter reprice window, because the import strength may be volume restocking that fades. If the trend is falling with PPI confirming, hold: buy hand-to-mouth and let the market come to you, keeping quote validity windows short so you can reprice down and win work. And if the series is flat, timing offers no edge, buy to your production schedule and spend the effort on yield instead. Today the series reads rising; apply the matching row, not last quarter's.

U.S. plastics imports per month, May 2026: $6.11B. The archived history runs from a low of $5.01B in Feb 2026 to a high of $34.86B in Apr 2026.

The import line doesn't tell you whether to buy. It tells you whether the question is urgent, resin PPI and feedstocks tell you the rest.

The forward-buy math on a real order

Put numbers on it. Suppose a quoted job needs 60,000 lb of imported-linked resin at $1.05/lb, about $63,000 of material. Forward-buying one quarter early costs roughly $1,890 in carrying cost at a 12% annual rate. Against that, the import series is +7.6% year over year; if even that annual pace continued and passed through, one quarter's drift on this order is roughly $1,190. When expected pass-through exceeds carrying cost and the trend signals confirm, the forward buy pays; when it does not, the carrying cost is the price of a bet you should decline. Run the same arithmetic at your own order size before every lock.

Use the inventory carrying cost calculator to price holding a forward resin buy, then compare it with the pass-through you expect. Test the carry against the drift

Published 2026-07-13.