Who Owns the Mold? Tooling Ownership and the Clause That Protects You
Who Owns the Mold? Tooling Ownership and the Clause That Protects You
It is the most expensive assumption in custom manufacturing: 'I paid for the mold, so it's mine.' In China, that is not how ownership works. The mold belongs to whoever the contract says it belongs to — and if the contract is silent, it stays with the factory that made it. After 20-plus years of tooling projects in Yiwu and the Delta, RND Sourcing has rescued buyers who paid for molds and then watched a factory refuse to release them, reproduce the part for a competitor, or hold production hostage. Ownership is a clause, not a payment. Here is the clause that protects you.
Paying for the Mold Does Not Make You the Owner
When you pay a tooling or mold fee, you are paying for the labour and material to create the tool, not automatically transferring title. Chinese contract law treats the mold as the factory's asset unless the agreement expressly assigns ownership to you. Many quotes list 'mold fee: USD 3,000' with no ownership sentence — and that silence defaults against you. The factory can keep the mold, reuse it, or refuse to ship it to a new supplier.
Title follows the contract, not the wire
A mold fee on the invoice is a cost, not a deed. Without a written ownership clause, the tool remains the factory's property. Pair this with a solid supplier verification before you fund any tooling.
The Standard Protective Clause: You Own, the Factory Custodies
The clause that fixes this is short and should appear in both the PO and the supply agreement. In plain terms: the buyer is the sole owner of the tooling; the factory holds it only as custodian for the buyer's production; the factory may not use it for any other customer, may not modify it without written consent, and must return or transfer it on request. State the mold's unique ID and value, and confirm the factory acknowledges receiving the fee as consideration for manufacture, not purchase of the tool.
State ownership explicitly
Write: 'All tooling paid by the Buyer is the sole property of the Buyer.'
Define custodian duties
The factory stores and maintains the mold solely to produce the Buyer's orders.
Ban third-party use
The factory shall not produce for, or sell to, any third party using the Buyer's tooling.
Grant return/transfer rights
On request or order end, the factory ships the mold to a designated address at its cost.
The Removable and Transferable Mold Clause
Ownership is only useful if you can physically move the tool. Add a clause that the mold is removable and transferable: the factory must keep it clearly labelled, undamaged, and ready to ship, and must cooperate with a new manufacturer's engineer who comes to collect it. Some buyers go further and require the mold be stored where a third party can access it, or even demand periodic photo evidence of its condition. For high-value tooling, RND arranges an on-site tag-and-photo record at the factory.
What Happens Without the Clause: A Real Risk Case
A US buyer we later assisted had paid USD 18,000 for injection molds and received two good shipments. When they tried to move production to a cheaper factory, the original supplier cited 'mold fee is non-refundable and the tool stays with us' — and there was no ownership clause to dispute it. The supplier then began selling a near-identical part to the buyer's own distributor. The buyer had paid for the tool, lost control of it, and funded a competitor's line. A single ownership sentence in the original contract would have prevented all of it.
Silence is a default against you
No clause means the factory keeps the tool and can use it as they wish. The cost of one sentence is zero; the cost of omitting it can be your entire tooling investment plus a leaked product.
Mold Storage, Maintenance and Audit Rights
Ownership clauses should be backed by practical controls. Require the factory to label your molds with your PO number, store them securely, and perform routine maintenance at their cost (since they are the custodian). Reserve the right to audit the tool's condition on site. RND Sourcing documents each customer-owned mold with a tagged photo record at intake and at each production run, so there is never a dispute about whether the tool exists or what state it is in.
Combining Mold Ownership With Exclusivity
Ownership stops the factory from keeping your tool, but it does not stop them from making the same product for others using their own separately-made molds. To close that gap, pair the ownership clause with an exclusivity clause prohibiting the factory from making or selling your design to any other party. Exclusivity is stronger when tied to your NNN agreement (see our China NNN guide), because the NNN adds non-use and non-circumvention teeth the ownership clause alone lacks.
What to Do If a Factory Refuses the Clause
A factory that refuses to acknowledge your ownership of paid tooling is telling you something important: they expect to keep control. Treat refusal as a red flag on par with refusing an NNN. Either negotiate the clause into the contract, or walk away to a supplier who will put it in writing. The small number of factories that resist are precisely the ones most likely to misuse the mold later.
How RND Sourcing Documents Tooling
For every tooling project we manage, RND Sourcing inserts the ownership and custodian clauses into both the PO and the supply agreement, tags and photographs the mold on intake, and re-confirms condition at each run. If a client ever needs to move production, we handle the collection and transfer so the tool arrives at the new factory intact. This is the unglamorous backbone of custom manufacturing that protects five-figure tooling investments.
Conclusion
In China, mold ownership is a contract term, not a consequence of payment. Put the ownership-and-custodian clause in writing, add the removable/transferable and exclusivity provisions, and document the tool on the floor. Without those sentences, the factory keeps what you paid for and can use it against you. For tooling handled with clauses, tags, and transfer support from Yiwu, contact RND Sourcing and we will protect your molds from the first PO.
If I pay the mold fee, isn't the mold automatically mine?
No. Under Chinese contract practice, the mold remains the factory's asset unless the agreement expressly assigns ownership to the buyer. Always state ownership in writing.
What should a mold ownership clause say?
That the buyer is the sole owner, the factory is only custodian for the buyer's production, the tool may not be used for third parties, and the factory must return or transfer it on request at its cost.
Can the factory keep my mold if I move to another supplier?
Only if the contract is silent. A proper removable/transferable clause forces the factory to ship the tool to your designated address. Without it, they can refuse.
Should mold ownership be separate from my NNN agreement?
They work best together. The ownership clause secures the physical tool; the NNN agreement stops the factory from making your design for others using their own tooling.
Paying for a mold buys you the tool's creation, not its title. Write the ownership clause, add removable/transferable and exclusivity terms, and document the tool on the floor. Send RND Sourcing your tooling project and we will put the protective clauses and transfer process in place from Yiwu.
