Mold Ownership

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Injection mold crated on a pallet with an asset plate and contract documents representing mold ownership.

Definition of Mold Ownership

Mold ownership is the question of who holds legal title to the injection tool used to make your parts, and contract terms decide it rather than who physically has the mold. Where you pay the full tooling cost, ownership normally transfers to you, though it does so clearly only when the purchase order says as much and identifies the tool by number. Where the supplier funds the tool and recovers the cost through the piece price, the mold usually remains his until the agreed volume has run, and sometimes for longer.

Buyers sourcing in Taiwan and Southeast Asia should also treat possession as separate from title, since a tool you own but which sits on a supplier's floor is difficult to recover in a dispute, particularly where invoices are outstanding.

Written terms covering title, the conditions for transfer, storage, maintenance responsibility and the procedure for moving the tool are worth a great deal more than any assumption about what is customary.

Why Mold Ownership Matters for Your Business

Ownership determines whether you can move production, and a supplier knows perfectly well whether you are in a position to take the tool elsewhere. That knowledge shapes every price and quality discussion you have afterwards.

The practical risk is rarely a bad-faith seizure. Far more often it is an unclear purchase order from four years ago, a tool stamped with the supplier's own number and no record of who paid for what. Photograph the tool, record its identification number and keep the invoice showing the tooling payment.

Where the supplier funds the tool, the arrangement can still suit you, provided the terms state the volume at which title passes and what happens if you never reach it. What causes trouble is silence, since a tool whose ownership nobody has agreed tends in practice to belong to whoever is holding it.

Related Terms

Injection Mold CostMold LifeMold Trial Stages
Mold ownership does not pass automatically on payment, and a good many buyers discover this only when they try to move a tool. Title transfers when the contract says it transfers, so the purchase order or tooling agreement should state that you own the mold outright on final payment, identify it by serial or tool number, and record that the supplier holds it for storage and production on your behalf. Without that language, a supplier can argue the payment bought parts and a tooling service rather than an asset. The distinction rarely surfaces while the relationship is running well, which is precisely why it belongs in the paperwork at the start.
Mold ownership gives you the right to move a tool, though the move itself runs on cooperation, so plan it as a project rather than issue it as a demand. Settle every outstanding invoice first, since a supplier owed money has a lien argument in most jurisdictions and will use it. Ask for the tool to be cleaned, serviced and photographed before release, together with the 2D and 3D data, the last dimensional report, the process settings sheet and any spare ejector pins or slides held for it. Build parts ahead of the transfer to cover several weeks of supply, since the receiving molder will want trials of his own.
Mold ownership usually carries the cost of maintenance, which surprises buyers who assumed the molder absorbed it. Routine cleaning and greasing between runs sit within the piece price as a rule, while wear parts, cavity repairs and rebuilds are charged to you as the owner. Damage caused by the molder's own error, such as a crash from a mispositioned ejector or a part left in the tool, should be his to repair, and that distinction is worth writing down. Agree a preventive maintenance interval expressed in shots, ask for a record at each service, and require the supplier to tell you before carrying out any repair above an agreed value.