Let's have a frank chat about one of the most misunderstood decisions in product sourcing. Every week, UK business owners come to us having already committed to one manufacturing model — OEM or ODM — without fully understanding what they've signed up for. Some discover they've handed over their intellectual property without realising it. Others have paid premium tooling costs for customisation they didn't actually need. This guide is here to make sure you don't make the same mistake.
Who this guide is for: UK entrepreneurs, brand owners, and product managers who are evaluating manufacturing options in China or Vietnam and need to understand the practical, legal, and commercial differences between OEM and ODM — without the jargon.
OEM (Original Equipment Manufacturer) means you provide the design, specification, and IP — the factory manufactures the product to your exact requirements under your brand.
ODM (Original Design Manufacturer) means the factory already has an existing product design that you can rebrand or modify slightly — the factory retains the underlying IP and tooling.
The choice between OEM and ODM isn't just a technical manufacturing decision — it's a brand, legal, and commercial strategy decision. Get it wrong and you could find yourself unable to stop competitors from selling an identical product, locked into a factory's existing design that doesn't meet UK safety requirements, or paying tooling costs for moulds you'll never own. Get it right and you have a scalable, defensible product that you control end to end.
For UK businesses in particular, the stakes are higher than they might be for importers elsewhere. Post-Brexit UKCA marking requirements, changes to intellectual property law, and the specific compliance frameworks under HMRC's Customs Declaration Service (CDS) all create additional obligations that vary depending on which manufacturing model you choose. A factory-designed ODM product that carries CE marking is not automatically compliant with UKCA requirements for Great Britain — and that distinction alone has caught out many UK brand owners we've worked with.
The decision also has long-term financial consequences. UK-China trade was worth approximately £87 billion in 2024, with UK imports from China running at around £71 billion in the year to March 2025. The sheer scale of the UK-China supply relationship means there are thousands of competing brands accessing the same ODM product catalogues. Differentiation through OEM is increasingly the only way to build a product business with genuine competitive moats.
In a true OEM arrangement, you arrive at the factory with your design, specifications, CAD files, material requirements, and branding. The factory's job is to manufacture your product to your specification. They supply the labour, machinery, and production expertise — but the intellectual property, the product design, and the brand remain entirely yours.
This is the most common model for UK businesses that have done their R&D, created a distinct product, and need a manufacturing partner to scale production. Think of a UK health supplements brand that has formulated its own blends and needs a contract manufacturer to produce them, or a hardware startup that has an industrial designer on the team and needs a factory to produce the physical product to specification.
It's worth being precise about terminology here, because the term "OEM" is used loosely in the sourcing industry. Strictly speaking, OEM describes the factory that manufactures to your specification — the factory is the Original Equipment Manufacturer. In common UK importing parlance, businesses often say they are "doing OEM" to mean they are commissioning bespoke manufacturing to their own design. That's the usage we'll follow throughout this guide.
OEM comes with higher upfront investment. Tooling and mould costs can range from a few thousand pounds to tens of thousands depending on complexity and material. You'll also typically face higher MOQs, longer lead times for the first production run, and a longer supplier qualification process. This makes OEM a slower path to market but a more defensible one once you're there.
Even in a true OEM arrangement, register your product design with the UK Intellectual Property Office before starting production. UK registered design protection lasts up to 25 years and costs as little as £50 for the first design.
In an ODM arrangement, the factory already has an existing product — often sold to dozens of other brands globally — that you can put your label on, sometimes with minor customisation like colour changes, packaging tweaks, or small feature modifications. The factory owns the design, the moulds, and the production IP. You are, in effect, renting access to their product under your brand.
Unless you have a written exclusivity agreement with the factory, any ODM product can be — and frequently is — sold by multiple brands simultaneously. If brand exclusivity matters to your business model, ODM is not the right long-term answer.
| Factor | OEM | ODM |
|---|---|---|
| IP Ownership | You own the design and IP | Factory retains design IP |
| Tooling Costs | £3,000–£50,000+ (you pay) | £0–£1,500 (customisation only) |
| MOQ | 500–5,000+ units | 50–500 units |
| Time to First Sample | 8–16 weeks | 2–4 weeks |
| Product Exclusivity | Yes — your design only | No — sold to multiple brands |
| Customisation Depth | Full — spec, materials, components | Limited — colour, label, minor features |
| UKCA Compliance Control | Full control over spec | Dependent on factory's design |
| Business Valuation Impact | IP adds to sale value | Minimal IP asset value |
| Quality Change Risk | Low — spec controlled by you | Medium — factory can amend without notice |
The UK-Vietnam Free Trade Agreement (UKVFTA), which came into force in January 2021, is one of the most underused advantages available to UK importers. For both OEM and ODM manufacturing, sourcing from Vietnam rather than China can result in significantly lower import duty rates — sometimes zero — which fundamentally changes the unit economics of your decision.
Under the UKVFTA, 65% of tariff lines were eliminated immediately upon entry into force, with the agreement ultimately reaching 99.2% tariff elimination. For manufactured goods — particularly garments, footwear, furniture, electronics, and consumer goods — Vietnamese origin goods frequently attract 0% duty into the UK, whereas equivalent Chinese-origin goods may attract 12%–20% under the UK Global Tariff.
UK-Vietnam trade was worth approximately £9.6 billion in 2024, and Vietnam is now a genuine alternative to China for OEM and ODM across many product categories. Lead times from Vietnam to Felixstowe or Southampton run at approximately 28–35 days by sea freight, compared to 25–32 days from southern China.
To claim UKVFTA preferential duty rates, goods must meet the agreement's rules of origin requirements. Simply having goods assembled in Vietnam from Chinese components may not qualify. Check the specific rule of origin for your product's commodity code on HMRC's UK Trade Tariff before planning your supply chain around Vietnam duty savings.
This is where OEM and ODM diverge most sharply for UK businesses. UK product compliance is ultimately the responsibility of the importer — not the overseas factory. Whether you're importing an OEM product you designed or an ODM product you rebranded, UK compliance falls on you.
UKCA (UK Conformity Assessed) marking replaced CE marking for products sold in Great Britain after 31 December 2024. Products in Northern Ireland continue to follow CE marking under the Windsor Framework. If your product falls within a regulated category — electrical equipment, toys, construction products, PPE, pressure equipment, radio equipment, and many others — it must bear the UKCA mark to be legally sold in GB.
For OEM products, you control the design and can build UKCA compliance requirements into the product specification from the outset. For ODM products, you're working with an existing design that may have been certified to CE but not UKCA. You'll need to commission UK conformity assessment, hold the technical documentation, and issue a UK Declaration of Conformity — all at your cost and risk.
Any UK business importing goods must have an EORI (Economic Operator Registration and Identification) number. You register via HMRC's online service. All import declarations are now submitted via HMRC's Customs Declaration Service (CDS), which fully replaced CHIEF in 2023. Whether your shipment arrives at Felixstowe, Southampton, or London Gateway, CDS declaration is mandatory.
Before sharing any OEM product specifications with a factory in China or Vietnam, have a Non-Disclosure, Non-Use, and Non-Circumvention (NNN) agreement in place. A standard Western NDA is generally not enforceable in these jurisdictions. At Epic Sourcing, we ensure NNN agreements are in place before any design sharing occurs as part of our Private Label and Secret Label services.
| Cost Element | OEM (Typical Range) | ODM (Typical Range) |
|---|---|---|
| Initial Tooling / Mould Costs | £3,000–£50,000+ | £0–£1,500 |
| Sample Development Cost | £500–£5,000 per round | £50–£300 |
| MOQ | 500–5,000+ units | 50–500 units |
| First Production Lead Time | 12–20 weeks | 4–8 weeks |
| Repeat Order Lead Time | 6–10 weeks | 3–6 weeks |
| UKCA Compliance Testing | £1,000–£15,000 | £1,000–£15,000 |
| Import Duty (China-origin) | 3%–20% of CIF value | 3%–20% of CIF value |
| Import Duty (Vietnam, UKVFTA) | 0%–5% (if origin rules met) | 0%–5% (if origin rules met) |
Our sourcing consultants work with UK businesses every day on exactly this decision. Book a free 30-minute call and we'll give you a straight answer based on your product, budget, and timeline.
Book Your Free ConsultationAt Epic Sourcing, we've helped UK businesses navigate the OEM vs ODM decision across dozens of product categories — from gym equipment and homeware to health supplements, electronics, and fashion accessories. Our team operates from London (71–75 Shelton Street, WC2H 9JQ) with sourcing operations in China and Vietnam.
Ideal for businesses entering the ODM route. We identify the best existing factory products, manage sampling, and handle the supplier relationship.
The hybrid approach — customising an ODM base to create a more distinctive product with NNN agreement and UKCA compliance guidance.
Our full OEM service — factory sourcing, IP protection, tooling negotiation, multi-round sampling, and UKCA compliance sign-off.
Yes, and this is actually quite common and often the most efficient approach. Many UK businesses start with an ODM product from a particular factory, validate the market, and then commission a custom OEM product from the same supplier. You'll need to commission tooling, negotiate mould ownership in writing, and sign a formal OEM manufacturing agreement — but the relationship you've built through the ODM phase makes this transition considerably smoother than starting with an unknown factory. At Epic Sourcing, we structure ODM engagements with exactly this future transition in mind.
As the UK importer, you are the responsible party for UKCA compliance — full stop. You must hold the technical documentation, carry out or commission the conformity assessment, affix the UKCA mark, and issue the UK Declaration of Conformity. If Trading Standards investigates a non-compliant product, they will come to you as the UK importer — regardless of whether the product is OEM or ODM. The fact that the factory told you it was compliant is not a legal defence.
An NNN agreement stands for Non-Disclosure, Non-Use, and Non-Circumvention. Unlike a standard NDA, it is specifically structured to be enforceable in Chinese and Vietnamese courts. It prevents the factory from disclosing your design to competitors, using your IP to manufacture for other clients, and bypassing you to deal directly with your customers. Before sharing any specifications with any factory, an NNN agreement should be signed in the local language with appropriate jurisdiction clauses. At Epic Sourcing, we include NNN agreement coordination as standard in our Private Label and Secret Label services.
Not automatically — the UKVFTA preferential duty rate only applies if the goods meet the agreement's rules of origin requirements for their specific commodity code. If a product is assembled in Vietnam primarily from Chinese components without sufficient transformation, it may not qualify. Always check the rules of origin for your specific HS code on HMRC's UK Trade Tariff tool before making sourcing decisions based on UKVFTA duty savings.
Ask the factory directly: "Do you have this or a similar product in your current catalogue?" If the answer is yes, it's ODM regardless of what they call it. Request to see the tooling invoice in your name — in a true OEM arrangement, the mould should be yours. Review the manufacturing agreement carefully: it should clearly state that the product design, tooling, and moulds are your property. At Epic Sourcing, we review these agreements as standard on behalf of our clients.
Whether you're entering the market with ODM or ready to commission a full OEM product that you own end to end, Epic Sourcing's UK team makes the process straightforward, cost-effective, and compliant.
White Label from £699 · Private Label from £1,899 · Secret Label (OEM) from £3,299
71–75 Shelton Street, London WC2H 9JQ
