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Ex-Mill Date vs Ex-Factory Date: What Each Means and Why Both Matter

Two dates show up on almost every apparel and textile timeline, and they sound alike enough to be confused. The ex-mill date and the ex-factory date are weeks apart, they are controlled by different businesses, and they tell you different things. Knowing both, and the gap between them, is how you see a late order coming before your supplier tells you about it.

What does ex-mill date mean?

The ex-mill date is the date the fabric, yarn or other main material leaves the mill that made it, heading to the factory that will cut and sew your product. It is the mill's version of an ex-factory date: material produced, finished, checked and ready to ship.

On a purchase order or critical path it is often written as ex-mill, EXM or fabric ex-mill. If your supplier buys fabric from a separate mill, which most cut and sew factories do, the ex-mill date belongs to the mill, not your supplier, and your supplier is relying on it just as much as you are.

What does ex-factory date mean?

The ex-factory date is the date the finished goods are made, packed, inspected and ready to leave the garment or product factory. It is the date on your purchase order, the one you book freight against, and the one your customers are indirectly waiting on.

How the two dates connect

The ex-mill date feeds the ex-factory date. The sequence usually looks like this:

Bulk fabric is produced, dyed and finished at the mill.
Ex-mill: fabric leaves the mill.
Fabric transit to the factory, anywhere from a couple of days locally to several weeks if it crosses a border.
Fabric inspection and testing at the factory, including shrinkage and colour checks against the approved standard.
Cutting, sewing, finishing and packing.
Final inspection.
Ex-factory: finished goods ready to leave.

As a rough guide for apparel, the gap between ex-mill and ex-factory is usually four to eight weeks, depending on transit, how complex the product is and how big the order is. Your supplier can tell you what it is for your product, and it is worth asking, because once you know it you can work out whether an ex-mill date is still compatible with your ex-factory date.

Simple check: take the ex-factory date, subtract the factory's production time and the fabric transit time. That is the latest the fabric can leave the mill. If the ex-mill date is later than that, the ex-factory date is already at risk, whatever the supplier's latest update says.

Why the ex-mill date is the earlier warning

Most importers only track the ex-factory date. The trouble is that by the time it moves, the cause happened weeks ago, usually at the mill. Fabric is the most common reason orders run late, because it has its own lead time, its own capacity limits and its own approvals, such as lab dips and bulk colour sign-off.

If you ask for the ex-mill date and it slips, you have found out about a delay with a month or more still on the clock. That is enough time to consider a stock fabric, split the order, or move the freight plan. Find out at ex-factory and your options shrink to air freight or arriving late.

Questions to ask your supplier

Is the bulk fabric already in stock, or does it need to be produced?
What is the confirmed ex-mill date, and has the mill confirmed it in writing to you?
How long is transit from the mill to your factory?
How many days after fabric arrives do you need before cutting starts?
Does the ex-factory date you have given me assume the fabric arrives on time?

A supplier who can answer all five quickly has a handle on their materials. Vague answers usually mean the ex-factory date has not been checked against the fabric timeline yet.

Other ex dates you might see

Ex-works (EXW): an Incoterm, not a date. It sets who pays for transport and where risk passes, and is often confused with ex-factory because both refer to the goods leaving the supplier.
Ex-warehouse: when goods leave a warehouse, used for stock held by a trading company rather than made to order.
Trims or components ex-date: the same idea as ex-mill for zips, buttons, labels and packaging. Late trims hold up a finished order just as effectively as late fabric.

Meet an unfamiliar term on a critical path or purchase order? The free trade glossary explains the language importers deal with every day. Open the free trade glossary

The bottom line

The ex-mill date is when material leaves the mill. The ex-factory date is when finished goods leave the factory. The first drives the second, and it moves earlier. Ask for both, know the gap your supplier needs between them, and check the ex-mill date against it. When that check fails, you have found a late order weeks before anyone admits it.

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