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Who owns our injection mould if we switch manufacturer, and how do we move it without stopping production?

Tool transfer is well covered from the receiving moulder's side. What is not covered is the European buyer's side: how ownership reads under an EU contract, what actually happens when a tool has to leave Asia, which costs are missing from the quotation, and how much stock you need before the steel moves.

Dolf Hendrikx

Co-founder and industrial design engineer ·

Ownership follows the contract wording, not the invoice. That is the first thing to establish, because a transfer discussion that starts without it is a negotiation rather than a collection. Moving the tool without stopping supply is then mostly a planning exercise: the mould will be out of production for six to twelve weeks within Europe, and often longer when it comes from Asia by sea, so you build stock covering that window first and only then let the steel move. Getting that sequence the wrong way round is the single most common reason a technically straightforward transfer turns into a stockout.

How does ownership read under a European contract?

Three situations occur in practice, and they look nearly identical on an invoice.

You are named as owner. The purchase order or framework agreement states that the tool is your property and that you may remove it. This is the only position that is actually strong. In [our process](/process), a signed mould property contract is in place before production starts.

You paid for the tool and nothing is written about ownership. By far the most common case. Where the contract is silent, the manufacturer who built and holds the tool frequently reads the payment as funding the development rather than purchasing an asset. That is a different reading of the same invoice, not bad faith, and it turns the transfer into a negotiation.

The tool was amortised into the piece price. You never paid for tooling, you paid a few cents extra per part over the first run. In that arrangement the moulder usually is the owner, and reasonably so, unless the contract says ownership passes to you after an agreed quantity. It is a cheap entry and an expensive exit, so know which model you are in.

There is a fourth thing to check that sits outside ownership entirely: outstanding invoices. In a number of EU jurisdictions a supplier holds a statutory right of retention over goods in its possession until related debts are settled, and that right can attach to your tool regardless of who owns it. So the practical order is: clear the ledger, then discuss the tool. Your own accounts payable are the first place to look, not the last.

What is different about pulling a tool out of Asia?

Three things, and none of them are engineering problems.

Physical possession sets the pace. Whoever has the steel in their building controls the handover date. Being right on paper and being able to ship next month are two different states, and enforcing a contract across jurisdictions takes longer than your stock will last. This is why the stock build has to precede the conversation rather than follow it.

A mould is an export, not a shipment of parts. It carries a customs value, a commodity code and a country of origin, and it needs a transfer document or invoice to clear. Some tool makers operate under export oriented tax arrangements under which tooling is treated differently from ordinary goods, which can affect whether and how the tool may leave. That is a question to ask before freight is booked, not after the crate is sealed.

Import at the European end is its own step. Duty is charged on the customs value of the tool, including freight and insurance to the EU border, and import VAT on that value plus the duty and the onward transport to the first destination in the EU. Book value is not the test, so agree the value with your customs broker and keep it consistent with your invoices. Build the customs lead time into the schedule rather than discovering it as a week of port storage charges.

What does the transfer cost, and which line is missing from the quotation?

Four visible lines and one that is almost never budgeted.

  • Strip down, cleaning and inspection at the departing site, with a photographic record.
  • Refurbishment. A tool that has run 400,000 shots rarely transfers untouched, and the transfer is the natural moment to do the work because the tool is already out of production.
  • Freight, insurance and customs at both ends.
  • New sampling and first article inspection at the receiving site, plus your own hours to review it.

The missing line is the departing supplier's transfer charge. It can be a substantial share of the original tool price, particularly on transfers out of Asia, and it is rarely in the original quotation. Ask for it in writing before you give notice. Whether such a charge is contractually defensible depends entirely on your paperwork. That it arrives is the point, and it belongs in the business case from the start.

How much stock do we need before the steel moves?

Weekly demand multiplied by the out of production window, plus a margin for the first runs at the new site. A worked example on invented assumptions: 4,500 units a week against a twelve week window is 54,000 units, plus roughly 20% margin for first run scrap and schedule slip, so about 65,000 units in the warehouse before anything is crated. Check how long the tool needs to make that on top of current demand: with 2,500 units a week of spare capacity, it takes about half a year. That is the largest cash outflow in the whole project and it lands right at the start, before any saving has been realised.

The rest of the sequence, in order:

1. Establish ownership and clear outstanding invoices. First, not fourth. 2. Have the receiving manufacturer assess the tool on drawings first; the physical inspection follows only after step 3, ideally at strip down or on arrival. Does it fit their presses, does the cooling connection match, what needs refurbishing? 3. Produce and inspect the bridge stock. This is the last run out of this tool where you can still change anything. 4. Strip, clean, photograph and release with a signed handover document. A tool that arrives damaged without a departure record is an argument with no end. 5. Ship with complete paperwork. 6. Sample and inspect at the new site against the written specification. Expect a deviation: a different press, different cooling and a different material batch always produce a slightly different part. The question is whether the difference falls inside the limits you wrote down.

An anonymised example. A consumer goods client running around 90,000 units a year arranged step 3 only after freight was booked. The transfer itself went through without technical trouble, and they still under supplied for six weeks because the stock was not there. The lesson is dull and expensive: the engineering is rarely the problem, the sequence is.

Should the tool move at all?

Sometimes not, and that is worth calculating rather than assuming. Three cases where a new tool at the new site is the faster and occasionally the cheaper route:

  • The tool is late in its life. Add the transfer charge, the refurbishment and the freight together and compare that with new tooling. The two numbers land closer together than most people expect.
  • The design is going to change anyway. Moving a tool you are about to modify means paying twice for the same steel.
  • The volume has outgrown the cavity count. A tool specified at a lower annual volume carries a piece price penalty on every part for the rest of its life. Transferring it preserves that penalty.

The honest trade off: a new tool costs more up front and removes the dependency on a supplier who has every reason to be slow. A transfer is cheaper on paper and keeps your timeline in someone else's hands. Which one wins depends on how much stock you can afford to carry while you wait.

[Production Heroes](/) takes products from design to series production, from feasibility and cost price to sourcing and supply chain, and supplies moulds and tooling to manufacturers across Europe, from the Netherlands and its own presence in China.

Sources: the stock example uses invented assumptions and is not a quotation; durations are practical ranges. Points of law vary by jurisdiction and contract, so treat the ownership and retention comments as background rather than legal advice. The anonymised example contains no identifying detail.

Frequently asked questions

Do we own the tool because we paid for it?
Not automatically. Ownership follows the contract wording, not the invoice. Where the purchase order is silent, many manufacturers treat the tool as theirs because they built and hold it, and you find that out at the moment you want to leave. Check the written terms before you open the conversation.
How long is production down during a tool transfer?
Supply does not have to stop, but the tool stands idle for six to twelve weeks within Europe, often longer from Asia by sea: strip down, shipping, refitting, new samples and inspection. Build stock covering that window plus a margin for the first runs before anything moves.
What does a tool transfer cost?
Visible lines are strip down, refurbishment, freight, customs and new sampling. The line that surprises buyers is the departing transfer charge; it can be a substantial share of the original tool price and is rarely in the quotation, so ask for it in writing first.
Which documents do we need before the steel moves?
Mould drawings including cooling and ejection, the part drawing at current revision, material specification with grade and colour, the process sheet with settings and cycle time, the maintenance log with shot count, and the latest dimensional report. Without the process sheet the new site starts from scratch.
Can it be done without the old supplier cooperating?
Legally sometimes, practically almost never without delay. Even with ownership in writing, the departing party physically holds the steel and controls the handover date. Settle outstanding invoices first, build your stock second, and have the conversation third. That order is what determines the outcome.
Can a mould simply be exported out of Asia?
Not without paperwork. A mould is a physical asset with a customs value, so it needs a transfer document, a commodity code and a country of origin. Some tool makers operate under export oriented tax arrangements that affect how tooling may move, so check before booking freight.