When a brand owner pays for tooling at a Chinese factory, the assumption is almost universal: you paid for it, so you own it. That assumption is wrong in the absence of a written contract that explicitly addresses mold ownership. Across the adult wellness OEM industry in China, mold ownership disputes are one of the most common and most costly problems that B2B buyers encounter — and they are almost entirely preventable with the right contractual language in place before production begins.

Quick answer. Paying for a mould does not transfer title in China unless the contract says so. The base, the cavity and core inserts, jigs, fixtures and the CAD data are separate items, and a quote usually covers only the base. List every physical item and file in a schedule, state the buy-out price, and record the mould number physically on the tool.

This article covers everything a buyer needs to know about mold ownership contracts when sourcing adult wellness products from China: what tooling actually includes, how Chinese property law defaults work without a contract, what specific clauses a mold ownership agreement must contain, how to handle mold transfer, exclusivity, maintenance, and insurance, and what practical steps protect your investment when things go wrong. At the end, we explain how Evokomoribi structures mold ownership protections for our OEM and ODM clients.

Why Mold Ownership Is the Most Underprotected Investment in Adult Wellness OEM

In adult wellness manufacturing, tooling costs are not trivial. A single injection mold for a mid-complexity silicone or ABS product can run from USD 3,000 to USD 25,000 or more depending on the number of cavities, the steel grade used, and the complexity of the part geometry. A full product launch that includes a body component mold, a charging case mold, packaging dieline tooling, and PCB test fixtures might represent USD 40,000 to USD 80,000 in total tooling investment before a single unit of finished goods ships.

Despite this scale of investment, the majority of first-time OEM buyers — and a disturbing number of experienced ones — commission and pay for tooling without a standalone mold ownership contract. They rely instead on a purchase order, a brief line item in a broader OEM agreement, or, most dangerously, a verbal understanding with their factory contact. None of these provide the legal protection that the investment requires.

The practical consequences are severe. Buyers who lack written mold ownership documentation have found themselves unable to move production to a new factory because the original factory refused to release the molds — and had a legal basis under Chinese law to do so. Buyers have discovered that factories modified their molds to serve other clients without authorization. Buyers have lost molds entirely when factories closed, relocated, or were sold to new ownership. And buyers have found that the molds they believed they owned had been cloned — with the cloned cavities running unauthorized production runs that flooded the market with counterfeit versions of their proprietary products.

These are not edge-case horror stories. They are predictable outcomes when mold ownership is treated as an assumed right rather than a documented, contracted, and actively managed one.

What "Tooling" Actually Includes

The first error buyers make is thinking too narrowly about what constitutes tooling. When people think of a mold, they picture the obvious: the steel injection mold that produces a plastic housing or a silicone toy body. But tooling in adult wellness OEM manufacturing is a broader category, and every element of it needs to be covered by your ownership contract.

Injection Molds

Injection molds are the core tooling investment for most adult wellness products. This includes the steel tooling used to produce ABS housings, polycarbonate covers, nylon structural components, TPE outer skins, and any other thermoplastic part. Injection molds consist of the mold base, the cavity plates, the core inserts, the runner system, the ejection system, and any side-action or lifter mechanisms. Each of these sub-components should be understood as part of the mold asset that you own.

Silicone Molds

Adult wellness products that incorporate liquid silicone rubber (LSR) components — whether a full product body, a sleeve, a surface coating layer, or a detail component — require dedicated silicone molds. These are typically made from hardened steel and are structured differently from thermoplastic injection molds, but they are just as significant an investment and require the same ownership documentation.

Die-Cast Tools

Products incorporating zinc alloy or aluminum die-cast components — motor housings, weighted inserts, structural spine elements — require die-cast tooling. These tools are high-pressure steel dies that are expensive to produce and represent a meaningful portion of tooling investment for products that use metal components.

PCB Fixtures and Test Jigs

For adult wellness products with electronic components — vibration motors, heating elements, app-connectivity, LED systems, or rechargeable battery management systems — the factory will often produce custom PCB manufacturing fixtures and functional test jigs. These are not molds in the traditional sense, but they are custom tooling assets that are specific to your product and that represent real investment. They should be listed by name, serial number, and description in your ownership contract.

Packaging Tooling and Dielines

Custom packaging for adult wellness products often requires physical tooling: cutting dies for custom box shapes, embossing tools for logo or pattern textures on packaging surfaces, custom blister molds, thermoforming tools for clear plastic inserts, and rigid box corner molds. These are frequently overlooked in mold ownership discussions but can collectively represent several thousand dollars of tooling investment and are just as subject to misappropriation as product molds.

Artwork, Digital Tooling, and CAD Files

While not physical tooling in the traditional sense, the CAD files, surface texture files, 3D surface models, and other digital assets that are used to create your physical molds are part of your tooling investment. Your contract should address ownership of these digital assets explicitly, including a requirement that all design files be delivered to the buyer in editable native formats upon mold completion.

The Default Ownership Situation in China: Without a Contract, the Factory Owns the Mold

This is the fact that surprises buyers most, and it needs to be stated plainly: under Chinese property law, if you pay for a mold to be built at a Chinese factory without a written contract that explicitly states you own that mold, the factory owns it.

The legal basis for this default is found in the principles of Chinese contract law and property law as applied to manufacturing relationships. When a factory produces tooling as part of a manufacturing service relationship, the default legal treatment is that the tooling is a business asset of the factory — a capital asset used to provide manufacturing services — unless there is explicit written documentation establishing otherwise. Payment of a tooling fee does not automatically transfer title to the buyer under Chinese law the way it might under the intuitive assumptions of buyers from common law jurisdictions.

This is compounded by practical realities. Chinese factories typically store molds on their own premises. They maintain them using their own technical staff. The molds often carry no external identification linking them to a specific buyer. In a dispute, the factory has physical possession of the mold, the factory is located in China and subject to Chinese court jurisdiction, and the factory can point to its own accounting records showing the mold as a company asset. Without a contract that clearly states otherwise, the buyer is in a very difficult legal and practical position.

Some buyers assume that paying via wire transfer with a clear description in the payment reference — "tooling fee for Product X mold" — creates a documentary trail that proves ownership. It does not. A payment record proves that money changed hands. It does not establish who owns the resulting physical asset under Chinese property law.

The solution is not complicated, but it must be done before money changes hands: a written mold ownership agreement, signed by an authorized representative of the factory, in Chinese, that explicitly states the buyer owns the mold.

What a Mold Ownership Clause Must State

A mold ownership clause must do more than say "the buyer owns the mold." Effective mold ownership documentation has multiple components, each addressing a specific vulnerability.

Explicit Declaration of Buyer Ownership

The contract must contain an unambiguous statement that all tooling produced using the buyer's tooling fee payments is the exclusive property of the buyer and that the factory holds any such tooling in its possession only in a custodial capacity on behalf of the buyer. The language should identify the buyer by full legal entity name, the factory by full legal entity name, and should reference specific tooling items by name and description.

Mold Registration and Identification

Every mold covered by the ownership agreement should be individually identified in a tooling schedule that forms part of the contract. Each mold should be assigned a unique serial number, and the contract should require the factory to physically engrave or stamp that serial number onto the mold steel, along with the buyer's company name. The tooling schedule should also include photographs of the mold (both assembled and showing key identifying marks), a description of the mold specifications (number of cavities, steel grade, nominal dimensions, part number produced), and the date of mold completion and acceptance.

Location of the Mold

The contract should specify where each mold is physically stored: the factory name, the factory address, the specific building or workshop within the facility, and ideally the rack or bay designation. This specificity serves two purposes. First, it creates a documented record that supports physical recovery if the factory closes or becomes uncooperative. Second, it establishes contractual notice obligations — the factory must inform the buyer if a mold is moved within the facility or to any other location, and must obtain buyer consent before any such transfer.

Mold Storage and Maintenance Obligations

Molds are not static assets. Injection molds require regular maintenance to perform at specification: runner cleaning, ejector pin lubrication, vent cleaning, parting surface polishing, and periodic dimensional verification. Silicone molds require surface inspection and cleaning protocols. Neglected molds degrade, produce defective parts, and eventually fail — often at a point that leaves the buyer with no usable tooling and a production crisis.

Your mold ownership contract should address maintenance explicitly.

Who Pays for Maintenance

Standard practice in China is that routine maintenance costs are borne by the factory as part of the ongoing production relationship. Major repairs arising from normal wear over the mold's designed shot life are typically the factory's responsibility up to the mold's rated shot life. Damage caused by factory negligence or mishandling should be the factory's liability. Damage caused by buyer-specified design changes or by running materials outside specification should be the buyer's liability. Your contract should state these allocations explicitly rather than leaving them to post-dispute negotiation.

Maintenance Schedule

The contract should specify a minimum maintenance schedule — for example, a preventive maintenance inspection every 50,000 shots or every six months, whichever comes first — and should require the factory to maintain a maintenance log for each mold that the buyer can inspect upon request. For buyers who are not running high volumes, a time-based maintenance trigger (every six months, regardless of shot count) is appropriate to prevent long-idle molds from deteriorating.

Liability for Mold Damage or Loss

The contract should clearly state that the factory is liable for the replacement cost of any mold that is damaged, destroyed, or lost while in the factory's possession, except to the extent caused by the buyer's actions. The replacement cost valuation method should be specified — typically the original tooling cost with a provision for inflation adjustment if the mold is more than two years old.

Mold Transfer Rights

The right to physically transfer your molds to a different factory is arguably the most commercially important right in a mold ownership agreement, and it is the right that Chinese factories most commonly resist granting.

The reason factories resist mold transfer clauses is obvious: the ability to lock a buyer's tooling at their facility is one of the most effective barriers to buyer switching. If a buyer cannot take their molds, moving production requires re-tooling from scratch — a cost and time barrier that makes switching practically difficult even when the buyer is genuinely unhappy with the factory's performance.

Your contract should state that upon written request from the buyer, with reasonable notice (typically 30 to 60 days), the factory is obligated to release all buyer-owned molds to the buyer or to a nominated third-party factory. The contract should specify the process for release: a mold release inspection, documentation of the mold's condition at the time of transfer, and factory responsibility for packaging the molds appropriately for transport.

In negotiation, factories will often propose conditions on transfer rights — for example, requiring that all outstanding invoices be paid before molds are released. This is a reasonable condition and can be accepted. What buyers should push back on is any provision that gives the factory discretion to refuse release, that requires factory consent for transfer, or that imposes financial penalties (beyond legitimate outstanding invoice settlement) for exercising the transfer right.

A useful negotiating approach: frame the transfer right as a quality assurance mechanism rather than an exit threat. The transfer right protects the buyer's supply chain in the event of factory capacity problems, quality crises, or force majeure events. A factory that is confident in its quality and relationship with the buyer has nothing to lose by granting this right.

Mold Exclusivity Clause

Paying to develop a proprietary mold for a distinctive adult wellness product creates an asset that defines your product's design. The mold produces a part with specific geometry, texture, and dimensions that belong to your brand. If a factory uses your mold cavities — or produces cloned cavities from your mold — to manufacture identical or substantially similar products for your competitors, the damage to your brand is significant and potentially irreversible.

A mold exclusivity clause should state that the factory is prohibited from using the buyer's molds, or any tooling produced by copying, reverse-engineering, or otherwise replicating the buyer's molds, to produce products for any party other than the buyer without the buyer's prior written consent. The clause should extend to sub-cavities, inserts, and any component tooling that is specific to the buyer's product design.

The clause should also address design confidentiality: the factory should be prohibited from sharing mold designs, CAD files, sample products, or design documentation with third parties, including other factories, even if those parties are the factory's own affiliates or sub-contractors.

Enforcement of exclusivity clauses against Chinese factories in Chinese courts is not guaranteed, but the clause creates a contractual basis for damages claims and is a significant deterrent. Factories that have signed exclusivity agreements are substantially less likely to engage in unauthorized production than factories operating under purely implied obligations.

What Happens to Molds When a Factory Closes

Factory closures are not rare events in Chinese manufacturing. Economic downturns, owner health issues, regulatory enforcement actions, labor disputes, fire, flood, and competitive pressures all contribute to a meaningful rate of factory closure across Guangdong's manufacturing base. For adult wellness OEM buyers, a factory closure while your molds are on premises is a genuine risk that deserves practical planning.

What Typically Happens During a Closure

When a factory closes in China, the typical sequence involves the factory's creditors — banks, landlords, suppliers, employees — asserting claims against factory assets. In a formal insolvency proceeding, a court-appointed administrator takes control of assets and liquidates them to satisfy creditors. Without a documented mold ownership agreement that clearly establishes your molds as your property (not factory assets), your molds may be treated as factory assets subject to creditor claims.

With a properly documented mold ownership agreement, serial numbers engraved on the mold steel, and photographic records, you have the documentary basis to assert an ownership claim to the administrator. This does not guarantee recovery — proceedings can be slow and outcomes unpredictable — but it creates a legal foundation that does not exist without the contract.

Practical Steps for Mold Recovery When a Factory Goes Dark

If you lose contact with your factory, the first step is to verify the factory's status through multiple channels: local business registration verification, contact with other known suppliers of the factory, engagement of a local agent or investigator in Dongguan or the relevant city. If the factory appears to have ceased operations, engage a Chinese lawyer immediately to assert a property claim over your molds before any insolvency administrator begins asset disposition.

Send formal written notice by recorded post and email asserting your ownership of specifically identified molds (using serial numbers and the documentation from your ownership agreement) and demanding their preservation and return. Simultaneously, document the situation thoroughly for any insurance claim.

Mold Insurance

Buyers who have invested significant sums in tooling should consider mold insurance as a risk management tool. Mold insurance policies can cover the cost of replacing tooling lost due to factory closure, fire, flood, theft, or other covered events. Premiums are modest relative to the tooling values at risk. Some buyers obtain coverage through international trade insurance providers; others work with China-based property insurance products. The existence of an insurance requirement can also be written into your contract as a factory obligation — requiring the factory to maintain property insurance covering buyer-owned molds at replacement value and naming the buyer as a loss payee.

Mold Deposit vs. Full Payment: Maintaining Leverage

The standard payment structure for tooling in China is a split payment: typically 50% of the tooling fee is paid upon placement of the tooling purchase order, and the remaining 50% is paid upon sample approval — that is, after the mold has been built, sampled, and the first-article samples have been reviewed and accepted by the buyer.

This structure is not arbitrary. It exists because it maintains buyer leverage throughout the tooling development process. The factory has a financial incentive to produce quality tooling and acceptable samples in order to collect the second payment. The buyer retains the ability to withhold the balance payment if samples are unacceptable, providing a meaningful negotiating lever for mold revisions and quality corrections.

Paying 100% of tooling costs upfront eliminates this leverage entirely. Once a factory has received full tooling payment, their financial incentive to prioritize your samples over other work, to make mold revisions promptly, or to meet the agreed tooling timeline is substantially reduced. The buyer has no financial leverage to enforce quality or timeline commitments.

Some factories will request full payment upfront, particularly for high-cost multi-cavity molds or for buyers they do not know well. The appropriate response is to decline this structure and propose the 50/50 split as standard. If a factory insists on full upfront payment, treat this as a significant red flag and negotiate hard for alternative protections — for example, a performance bond, a bank guarantee, or a substantially more detailed mold specification sign-off process before payment.

For very large tooling investments, some buyers use a three-stage payment structure: 40% on PO, 30% on mold completion and dimensional verification, and 30% on sample approval. This provides even more granular leverage and is particularly appropriate when tooling budgets exceed USD 20,000.

The gap is almost always definitional: buyers pay for a mould and assume that covers the inserts, the fixtures and the data, while the factory quotes the base only. Listing every item in a schedule converts an argument into a checklist. Kazmer's treatment of tooling economics shows why factories resist transfer, since a paid-for mould is capital already amortised and still available for other customers [Kazmer, 2007]. The pricing side of tooling is in the mould development and tooling fee guide; the wider IP stack in the IP protection guide; the contract layer beneath it in the NNN versus NDA comparison.

Documentation at Tooling Completion

Before releasing the balance payment on any tooling, buyers should require a complete documentation package from the factory. This package is both a quality assurance deliverable and the evidentiary foundation of your mold ownership.

Mold Acceptance Certificate

The mold acceptance certificate (in Chinese manufacturing practice, commonly referred to as the 验收单, or inspection/acceptance record) is a formal document signed by both parties confirming that the mold has been inspected, meets specified requirements, and is accepted by the buyer. It should identify the mold by serial number, list the key specifications verified during acceptance inspection, and be signed and stamped by authorized representatives of both the factory and the buyer.

Mold Specifications Sheet

The mold specifications sheet documents the physical and operational characteristics of the mold: overall dimensions, weight, steel grade used for cavity and core inserts, number of cavities, runner system type (hot runner or cold runner), ejection system configuration, cooling circuit layout, and designed shot life. This document serves as the technical baseline for future maintenance discussions and for replacement cost estimation.

First-Article Inspection Report

The first-article inspection (FAI) report documents dimensional and visual inspection of the first parts produced from the new mold against the buyer's approved drawings or 3D model. It should include dimensional measurements for all critical features, surface finish assessments, material certification confirmation, and comparison against tolerances specified in the part drawing. The FAI report is the buyer's documentation that the mold was producing conforming parts at the time of acceptance — essential evidence in any later dispute about whether a defect is a mold issue or a production process issue.

Mold Photographs

The documentation package should include a complete photographic record of the mold: overall photographs from multiple angles, close-up photographs of the cavity surfaces, photographs of the engraved ownership markings and serial numbers, and photographs of any unique identifying features. These photographs should be taken at the time of acceptance and stored securely by the buyer alongside the other documentation.

Physical Marking and Labeling of Molds

Documentation alone is not sufficient. The mold itself must bear physical markings that identify it as your property. Your mold ownership contract should require the factory to engrave, stamp, or otherwise permanently mark each mold with:

• The buyer's company name (in both English and Chinese if practicable)
• The mold serial number assigned in the tooling schedule
• The year of manufacture
• The part number or product name associated with the mold

This physical marking serves several important functions. In a factory closure scenario, it allows a court administrator, investigator, or local authority to physically identify your molds as distinct from factory-owned assets. It deters unauthorized use of your molds, because any parts produced from a mold engraved with your company name would carry implicit evidence of the mold's origin. And it creates a chain of physical custody documentation — when combined with your photographic records — that is difficult to dispute.

Some factories resist engraving ownership marks because it makes their internal asset management more complicated. This resistance should be treated as a non-negotiable point. Physical marking of buyer-owned tooling is industry standard practice for serious OEM relationships and is a basic professional expectation.

Mold Audit Rights

Your mold ownership contract should include an explicit right to physically inspect your molds at any time with reasonable advance notice — typically 5 to 10 business days. The audit right should cover the right to:

• Physically locate and inspect all tooling listed in the tooling schedule
• Verify that serial numbers and ownership markings are intact
• Review the factory's mold maintenance log for each tool
• Conduct a dimensional check or have samples pulled to verify mold condition
• Photograph the molds and their storage conditions

The audit right should also extend to a third-party inspector acting on the buyer's behalf — important for buyers who cannot travel to China regularly and who need an agent or inspection company to conduct audits in their place.

Factories that object to audit rights are a serious concern. An audit right does not impose meaningful burden on a factory managing tooling properly; it is only burdensome if something is being concealed. Make audit rights a standard expectation in every tooling relationship.

Multi-Cavity Molds and Cavity Ownership

A point that is rarely discussed but commercially important: some Chinese factories use shared multi-cavity tools where different cavities within a single mold produce different clients' products. This is most common for simple, small components where the economics of a dedicated single-cavity mold do not make sense for low-volume production runs.

If you are paying for tooling and the factory proposes a shared multi-cavity arrangement — where your product occupies, say, two cavities in an eight-cavity mold that also serves other clients — you need to clarify exactly what you own and what rights you have. In this scenario, you own specific cavities, not the mold base or shared tooling components. Your ownership documentation should identify the specific cavity inserts that belong to you by serial number, describe their location within the shared tool, and establish your right to have those inserts transferred to a new mold base if you move production.

More importantly, you need to establish in writing that the factory cannot run your cavity inserts for other clients' products and cannot produce parts using your cavity geometry for any purpose other than your authorized production orders. The exclusivity obligation in a shared-tool arrangement is even more important than in a dedicated mold scenario, because the physical proximity of your cavity geometry to other production work creates inherent risks of unauthorized use.

In general, buyers sourcing proprietary-design adult wellness products should push for dedicated single-client molds wherever commercially feasible. The exclusivity, quality, and scheduling control benefits of a dedicated mold outweigh the marginal cost savings of shared-cavity arrangements.

Mold Lifetime Guarantees and Shot Life

Every mold has a finite operating life measured in production cycles, or shots. Understanding mold lifetime and who bears the cost of maintenance and replacement over that life is an important aspect of your tooling investment planning.

Typical Shot Life by Steel Grade

For injection molds, the most commonly used steel grades in Chinese factories and their typical designed shot lives are:

Most adult wellness product molds produced for serious private label buyers use P20 or H13 steel, depending on the expected production volume and the abrasiveness of the material being molded. Buyers placing high-volume orders (hundreds of thousands of units annually) should specify H13 or equivalent and verify the steel grade with material certification documentation.

Who Pays for Mold Repair and Replacement

Your contract should address mold repair and replacement obligations across three scenarios:

Routine wear within designed shot life: The factory bears the cost of preventive maintenance and minor repairs required to keep the mold producing conforming parts within its designed shot life. This is a standard factory obligation in Chinese OEM manufacturing.

End-of-life replacement: When a mold reaches the end of its designed shot life and requires replacement, cost responsibility is typically negotiated at that time. Some contracts establish that the buyer bears replacement cost; others establish a shared cost arrangement based on the volume of production the buyer has committed to. Buyers with high-volume commitments are often able to negotiate factory-funded mold replacement as part of the ongoing production relationship.

Premature failure due to factory negligence: If a mold fails before reaching its designed shot life due to factory negligence — improper maintenance, mishandling, running the wrong materials — the factory should be contractually liable for replacement cost. Your contract should state this explicitly.

Template Clause Language

The following template language covers the core mold ownership provisions. This is provided as a starting point for discussion with your legal counsel — it is not a complete contract and should be reviewed and adapted for your specific circumstances. Note: in China, the Chinese-language version of any contract controls in the event of a dispute. Any English-language version serves as a reference translation only. Engage a qualified Chinese-language contract lawyer to prepare the operative Chinese version.

Ownership Clause

All tooling, molds, dies, fixtures, test jigs, and related manufacturing equipment listed in Schedule A (collectively, "Buyer Tooling") that are funded in whole or in part by payments made by Buyer to Supplier shall be and remain the exclusive property of Buyer. Supplier holds all Buyer Tooling as custodian on behalf of Buyer. Supplier shall not pledge, encumber, transfer, assign, or permit any lien to be placed upon any Buyer Tooling without Buyer's prior written consent. Supplier shall engrave or otherwise permanently mark each item of Buyer Tooling with Buyer's company name, the unique tooling serial number assigned in Schedule A, and the year of manufacture, prior to first production use.

Transfer Clause

Upon Buyer's written request, Supplier shall release any or all items of Buyer Tooling to Buyer or Buyer's designated third-party manufacturer within thirty (30) calendar days of receiving such request, provided that Buyer has no outstanding undisputed invoices payable to Supplier. Release shall include physical delivery of the Buyer Tooling to Buyer's designated location (at Buyer's cost for logistics), delivery of all tooling documentation including mold specifications, maintenance records, and digital design files in editable native format, and a written mold condition report signed by Supplier's authorized representative. Supplier shall have no right to withhold Buyer Tooling beyond the foregoing thirty-day period for any reason other than resolution of outstanding undisputed invoices.

Exclusivity Clause

Supplier shall not use any item of Buyer Tooling, or any tooling produced by copying, reverse-engineering, or replicating any item of Buyer Tooling or any product design proprietary to Buyer, to manufacture products for any party other than Buyer without Buyer's express prior written consent. This obligation survives termination of this Agreement. Supplier shall maintain the confidentiality of all Buyer product designs, CAD files, samples, tooling specifications, and related technical information and shall not disclose such information to any third party.

Maintenance Clause

Supplier shall maintain all Buyer Tooling in good working condition in accordance with industry-standard maintenance practices. Supplier shall conduct preventive maintenance inspections on each item of Buyer Tooling no less frequently than every [50,000 shots or six (6) months, whichever occurs first] and shall maintain a written maintenance log for each item. Supplier shall be liable for the replacement cost of any item of Buyer Tooling that is damaged, destroyed, or lost while in Supplier's possession due to Supplier's negligence, failure to maintain, or mishandling. Buyer shall have the right to inspect all Buyer Tooling and associated maintenance records upon five (5) business days' advance written notice.

What to Do If a Factory Refuses Mold Ownership Terms

Some factories will resist signing a formal mold ownership agreement, either because it is outside their standard practice, because their management is uncomfortable with the transfer rights, or because they are specifically hoping to retain leverage over your tooling. Understanding your options when a factory refuses mold ownership terms is important before you begin tooling negotiations.

Use a Refundable Tooling Deposit as Leverage

One approach is to structure your initial tooling payment as a fully refundable deposit that converts to a tooling fee only upon signing of the mold ownership agreement. If the factory will not sign the ownership agreement, they return the deposit and no tooling begins. This approach makes the negotiation sequence clear: ownership documentation is a precondition for tooling payment, not an afterthought.

Use a Third-Party Mold Maker

An increasingly common approach for buyers who want maximum mold security is to commission their tooling from a separate, specialist mold-making company rather than from the production factory. In this arrangement, the buyer pays the mold maker directly, has a straightforward vendor-client relationship and ownership documentation from a party whose entire business is building molds (not producing products for multiple clients), and then supplies the completed mold to the production factory as buyer-furnished tooling. The production factory is given custody of the mold under a clear written custodial arrangement but has no claim to ownership because they were never involved in its creation or funding. This approach is more complex logistically but is highly effective for buyers with significant tooling investments in proprietary product designs.

Walk Away

If a factory refuses reasonable mold ownership terms and alternative structures do not address your concerns, walking away is the right decision. A factory that will not sign a mold ownership agreement is telling you something important about how they plan to manage the relationship. The short-term cost of finding a different supplier is far smaller than the long-term cost of having your molds held hostage, cloned, or lost.

How Evokomoribi Handles Mold Ownership with Clients

At Evokomoribi, mold ownership documentation is a standard component of every OEM agreement, not an optional add-on that buyers need to negotiate for. We operate from Dongguan, Guangdong, where we produce adult wellness products across the full range of categories — vibration devices, intimate massagers, app-connected products, silicone toys, and related accessories — and we understand that our clients' tooling investments are significant and deserve the same protection we would want if our positions were reversed.

Our standard OEM agreement includes explicit mold ownership clauses covering all of the areas discussed in this article: buyer ownership declaration, mold identification and registration, physical marking requirements, storage obligations, maintenance commitments with defined schedules, transfer rights with a 30-day release timeline, and exclusivity protections for proprietary designs. These are not negotiating positions that buyers need to push for — they are our baseline offering, because we believe that a long-term OEM relationship is built on trust, and trust requires documentation.

At the point of tooling completion, we provide every client with a complete documentation package: the mold acceptance certificate signed by our production director, a full mold specifications sheet, the first-article inspection report with dimensional data, and a photographic record of each mold including close-up photographs of engraved ownership markings. All CAD files used to produce the tooling are delivered to the buyer in native format before balance payment is released.

We use a 50/50 payment structure as standard for tooling: 50% on tooling purchase order and 50% on sample approval. This is not just our policy — it is the structure that correctly aligns incentives for both parties and that we recommend as industry standard to every buyer we work with, regardless of whether they are working with us or evaluating other suppliers.

For clients with proprietary ODM designs — products developed using Evokomoribi's design and engineering capabilities but specified to the buyer's brief — our standard agreement includes additional IP protection provisions covering design confidentiality, competitive exclusivity periods, and restrictions on our use of buyer-specific design elements in products offered to other clients. We understand that a buyer who has invested in original product development has the right to expect that investment to be protected.

We are also transparent about our tooling infrastructure: molds for active client accounts are stored in our dedicated tooling room, organized and tracked in our tooling management system, maintained on a scheduled preventive maintenance program, and available for client inspection audits with standard advance notice. We have never refused a client's request to inspect their tooling, and we have never refused a mold transfer request from a client who had no outstanding invoices.

If you are evaluating adult wellness OEM suppliers in China and want to understand how a specific factory handles mold ownership before you commit, the simplest test is to ask them to share their standard mold ownership contract language. A factory with a mature and professional approach to client mold ownership will be able to share this documentation immediately. A factory that does not have standard language, or that deflects the question, or that proposes to address mold ownership through a brief line item in a purchase order, is telling you that mold ownership has not been a priority for them — and that it may become a problem for you.

Mold ownership is not a bureaucratic formality. It is the contractual foundation of your supply chain security for every product that depends on that tooling. Taking the time to get it right before you pay for tooling is among the highest-return investments a buyer can make in their OEM manufacturing relationship.

If you would like to review Evokomoribi's standard OEM agreement and mold ownership provisions, or to discuss a private label or ODM development project for the adult wellness category, contact our business development team directly. We are happy to walk you through our documentation process and answer any questions about how we protect buyer tooling investments.

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Tooling is one half of the equation — see protecting your brand IP for trademarks, NDAs, and design protection.

References

1. Wikipedia. "Injection moulding." Wikipedia, The Free Encyclopedia.
2. Wikipedia. "Tool and die maker." Wikipedia, The Free Encyclopedia.
3. Kazmer, D. O. (2007). Polymer Processing: Modeling and Simulation. Hanser Gardner Publications.