Who Owns the Mould After You Pay for It

Mould ownership on a China silicone case programme is decided by one row on a quotation: Mould charge — USD X, one-off. It reads like a purchase. Most of the time it is not. It is a contribution toward a capital asset that will spend its entire life on a steel rack in a workshop in Guangdong, moved only by people who do not work for you.

That gap between what the invoice implies and what you actually hold is where case programmes get stuck. A buyer moves production after two years — better price elsewhere, a quality dispute, a supplier who stopped answering — and finds the tool they "bought" is a heavy block of steel in someone else's building, with no marking, no maintenance record, no shot count, and no clause saying what happens next.

The fix costs nothing at the start and is close to impossible to retrofit. It belongs in the tooling PO, before the deposit.

Paying for a tool is not the same as owning it

There are three commercially normal positions, and buyers routinely think they are in the third when they are in the second.

Amortised tooling. The factory absorbs the tool cost and recovers it through the unit price, sometimes against a volume commitment. The tool is plainly the factory's asset: lower entry cost, no title claim. A legitimate structure — just know you are in it.

A tooling charge with no title language. You pay a stated mould charge. The contract says nothing about ownership, storage, marking or release. This is the common case, and it is the dangerous one, because the invoice creates a feeling of ownership that the paperwork does not support. If the relationship stays good, nobody notices. If it sours, you are arguing about intent while the other party is holding the object.

A tooling charge with written transfer of title. You pay, title passes on a defined event, the tool is identified by number, physically marked, held on your behalf, and released on a named condition. It costs the same as the second option. The difference is a paragraph.

Underneath all of it sits a physical fact no contract changes: a mould in a Chinese workshop is in that workshop's possession, whatever the invoice says. Title tells you who is right; possession decides who must act, at what cost, and how long it takes. Write the clauses because they shape behaviour and give you standing — not because a signed page moves steel across a factory yard.

The cost side is covered in what tooling and mould costs actually look like in China; this article is about what happens to the tool after the invoice is paid.

The five clauses that actually matter

Skip the boilerplate. These five carry the weight.

1. Written transfer of title, tied to a named event. The clause needs three components: the event that transfers title, the identification of the thing being transferred, and a statement of what the supplier's possession means afterwards.

Draft it plainly: Title to the Tool passes to the Buyer upon the Supplier's receipt of the final instalment of tooling invoice no. [X]. The Supplier thereafter holds the Tool as bailee for the Buyer, at the Supplier's risk while in the Supplier's possession, and shall not pledge, encumber, sell, scrap or use the Tool for any third party's production.

The bailee sentence does the quiet work: it converts "we are holding your tool" from an assumption into an obligation with named prohibitions attached. In an accessory category, where the same shell shape has obvious value to your competitors, the no-third-party-production phrase matters most.

2. A tooling schedule that identifies the object. A title clause referring only to "the mould" is close to worthless — you cannot later prove which object it meant. Attach a schedule, signed at T1 approval, listing:

• Tool number (the factory's internal number, and yours if you assign one)
• Cavity count and layout
• Steel or aluminium grade and hardness — P20, 718H, H13, NAK80 and 6061 are the kinds of designations that belong here; ask which your tool uses, and record the answer rather than assuming
• Overall dimensions and weight (this number determines your extraction cost later)
• Press tonnage and machine type the tool is built to run on
• Date of manufacture and date of T1 approval
• Physical marking: an engraved or stamped plate bearing your company name and the tool number, photographed at approval

That last item is the cheapest insurance in the document. A tool with your name physically on it is harder to quietly repurpose than an unmarked block, and the photograph is dated evidence of the tool's condition when title passed.

3. Storage and maintenance obligation, with a scrapping notice. Tools rust. Silicone compression tooling accumulates residue and needs cleaning and oiling; injection tooling needs corrosion protection on cooling channels. Unmaintained storage for a year and a half can turn an asset into a refurbishment bill. Specify: free storage for a defined period after the last shipment; the supplier's maintenance obligation during storage (clean, oil, protect, store indoors); who pays for refurbishment after a defined shot count; and — critically — that the supplier gives written notice a defined number of days before scrapping or otherwise disposing of the tool, with the buyer having the right to call for release during that window.

The scrapping-notice clause exists because the most common way buyers lose tooling is not theft — it is a dormant account, a rack that needs space, and a supplier who assumed the programme was dead. WJM operates a dedicated mould storage area alongside in-house CNC mould fabrication, but the written policy on storage duration, maintenance and cost allocation is not published: request it before signing.

4. Shot-count records. A mould's usable life is measured in shots, not months. Without a running count you cannot tell whether declining part quality is a process drift or a worn cavity, you cannot forecast a refurbishment, and you cannot evaluate what you are actually recovering if you extract the tool.

Require the shot count on each shipment — a single line on the packing list is enough — plus a cumulative figure on request. Then put two numbers in the contract: the expected life in shots the supplier warrants for this tool, and the threshold at which refurbishment is triggered, with the cost split named. Ask the factory to state expected life for your specific tool and material rather than accepting a general industry figure; compression tooling for silicone and injection tooling for PC or ABS wear on different curves, and the answer depends on the steel, the cavity finish and the abrasiveness of the compound.

A supplier who cannot produce a shot count for a tool that has run for a year is telling you something about their record-keeping.

5. A release clause with a named, objective condition. This is the clause most often written badly. "The Supplier shall release the Tool upon the Buyer's request" is unenforceable in practice because it does not say when, in what condition, at whose cost, or what release includes.

Write it as a procedure:

Upon the Buyer's written request, and provided all undisputed invoices then due have been settled, the Supplier shall within [15] working days make the Tool available for collection EXW the Supplier's premises (Incoterms 2020), cleaned, oiled and crated to export standard at the Buyer's cost, together with: the current 2D tool drawings, the cavity and core 3D data, the maintenance log, and the cumulative shot count.

That fixes four things: it names a deadline; it attaches the condition to undisputed invoices, so a manufactured dispute cannot become an indefinite lien; it defines the delivery point, so nobody argues about who books the truck; and it makes documentation part of the release, because a mould without drawings and cavity data is much harder for a new supplier to run and repair.

The honest part: extraction is slow and often not worth the freight

Every consultant tells buyers to secure mould ownership. Fewer explain what recovery actually costs when the supplier is unwilling.

Start with the physics. A steel case tool is heavy — often well into the hundreds of kilograms for a multi-cavity plate. Extraction means a forklift, an export crate, inland trucking to Yantian or Shekou, freight at that weight, and a customs entry in your market. Moulds for rubber or plastics fall under HS heading 8480 (8480.71 for injection or compression types), so a customs value has to be declared for a tool you may have paid for once already — tedious even when everyone is cooperating.

Then requalification. A tool moved to another factory runs on a different press with different clamping, temperature control and operators. You re-sample, re-inspect dimensionally and re-approve; flash behaviour and gate finish change. Budget weeks, not days, and budget for the receiving supplier telling you the tool needs work before it will run to their standard.

Then enforcement. If the supplier is unwilling, you are pursuing a low-value chattel through arbitration or a Chinese court in the supplier's home jurisdiction, at a legal cost that frequently exceeds cutting a new tool — while your production is stopped.

The uncomfortable arithmetic: for a single-cavity or small multi-cavity silicone case tool, re-cutting at the new supplier is often faster and cheaper than extracting the old one — provided you kept the inputs. That is the real lesson. The value of a well-drafted tooling agreement is mostly deterrence and bargaining position: it makes a supplier think twice about holding your programme hostage, and it gives you a credible footing in a negotiation. It is not a logistics plan.

Which is why the most useful protection is upstream:

• Hold the design data yourself. Your 3D part model, your 2D drawings with tolerances, your approved sample and its dimensional report. If those live only in the supplier's server, the mould clause is the least of your problems — see protecting your IP with a China factory.
• Get the mould data, not just the mould. Parting-line location, gate type and position, shrinkage allowance used, and the steel grade. Those four items turn a re-cut from a redesign into a fabrication job.
• Qualify a second moulder before you need one. A dormant, sampled alternative supplier is worth more than a title clause you have never tested.
• Avoid standing pressure points. Long open balances turn "release the tool" into "settle first". T/T terms are set per order at most factories, WJM included — structure them so you are not permanently in arrears against a tool you own on paper.

Public moulds are a different animal entirely

None of the above applies to a public mould, and confusing the two costs buyers money.

WJM's 80+ ready-made POS terminal moulds are factory-owned public tooling: the factory built them, maintains them, and multiple buyers can order parts from them. You are not buying title, and you should not be paying a tooling charge to use one — the logic of a public mould is that the tooling cost is already sunk, which is what makes near-zero upfront tooling and fast sampling possible for standard models. See what an 80-mould POS case library actually gets you.

The question worth asking is exclusivity: whether a public mould can be reserved for one buyer, and on what terms. That is not published, and the answer decides whether a public-mould programme works for a branded accessory line. Ask before you build a brand around a shell anyone can order.

One more distinction matters for ownership: whether your tool is cut in-house or subcontracted. A subcontracted tool adds a third party who was not in your contract and may hold their own claim over the object. Ask, and get the answer in the tooling schedule.

Common questions

If I paid the tooling invoice, do I own the mould?

Only if the contract says so. A tooling charge without a title clause is, in practice, a contribution toward a tool the factory built and holds. Get title transfer written against a named event, identify the tool by number in a signed schedule, and require physical marking with your company name.

Can I move my mould to a different factory later?

Contractually, yes, if you wrote a release clause with a deadline, a delivery point and a documentation package. Practically, expect crating, inland trucking, freight at real weight, a customs entry under HS 8480.71, and full requalification at the new supplier. With an unwilling supplier, add legal time and cost that often exceeds re-cutting the tool.

Does a public mould need an ownership agreement?

No — it needs an exclusivity answer instead. Public tooling stays with the factory by design. Establish in writing whether the tool can be reserved for you, and confirm that your logo, colour and packaging artwork remain yours regardless of who owns the steel.

What to ask the supplier next

Send this before the tooling deposit, not after:

1. Is my tool cut in-house or subcontracted? If subcontracted, name the subcontractor.
2. Confirm in writing: title passes to me on final payment of the tooling invoice, and you hold the tool as bailee thereafter with no third-party use.
3. Issue a signed tooling schedule at T1 — tool number, cavity count, steel grade and hardness, weight, press tonnage, and a photograph of the marking plate carrying my company name.
4. State your storage duration after the last order, your maintenance obligations during storage, and the notice period before any scrapping.
5. Report the cumulative shot count with every shipment. State the warranted life in shots for this tool and material, and who pays for refurbishment beyond it.
6. Confirm the release procedure: working days from written request, EXW your premises, crated to export standard at my cost, with 2D drawings, cavity/core 3D data, maintenance log and shot count included.
7. For public moulds: is exclusivity available, and on what commercial terms?
8. Send the tool's gross weight and crated dimensions now, so the extraction cost is on file before it is needed.

WJM Silicone is a reasonable example to run this list against: an in-house mould workshop with CNC fabrication and a dedicated mould storage area in Longgang, Shenzhen, more than 10,000 custom mould projects on file, and a separate library of factory-owned public POS tooling — so the ownership conversation splits cleanly into the two tracks above. The written policy on transfer, storage and exclusivity is not published; ask for it and read it before the deposit clears. The wider paperwork list for this stage is in what documents to ask a China supplier for before a first order.