Most UK businesses that contact a Chinese factory directly for the first time come away with one of two outcomes: a surprisingly cheap quote that falls apart at quality inspection, or a supplier who vanishes after the deposit clears. Contract manufacturing fixes both problems — but only if you understand how the model works and what it demands from you before production starts.
This guide is written for UK brand owners, e-commerce businesses, wholesalers, and product startups who want to have goods made to their specification in Asia. It covers how contract manufacturing works, how to choose between China and Vietnam, what UK compliance requirements apply (UKCA, HMRC import duties, CDS, EORI, UKVFTA), realistic costs and lead times, and how Epic Sourcing helps UK buyers manage the entire process end-to-end.
What is contract manufacturing?
Contract manufacturing is a business arrangement in which a company (the brand owner) engages a third-party factory to produce goods to a specified design, formula, or standard — with the brand owner retaining ownership of the intellectual property and product specification. The manufacturer supplies labour, equipment, and production expertise; the brand owner supplies the brief, approves samples, and sells the finished goods under its own brand.
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For decades, contract manufacturing in Asia was the preserve of large consumer goods companies with procurement departments and in-house quality engineers. That is no longer the case. Minimum order quantities have fallen sharply as factories in China's Pearl River Delta and Vietnam's manufacturing provinces have modernised and diversified their client base. A UK business turning over £500,000 can now access the same Guangdong production lines that supply European supermarkets — provided it works with a sourcing agent or has a credible product brief and the patience to manage sampling rounds properly.
The economic case is compelling. A product manufactured to your specification in Guangdong province, shipped FCL (full container load) to Felixstowe or Southampton, and cleared through HMRC's Customs Declaration Service typically lands at 20–40% of the cost of equivalent UK-manufactured goods — even after import duty, VAT, freight, and agency fees are factored in. For brands competing on price, that margin difference is existential. For brands competing on quality or design, contract manufacturing enables investment in premium packaging, better materials, and higher-margin positioning that domestic manufacturing budgets rarely permit.
The strategic case is equally strong. Owning your product specification — rather than buying off-the-shelf — gives you differentiation that a wholesale or dropship model cannot. You control the formulation, materials, dimensions, certifications, and branding. You can iterate. You can protect. And you build genuine asset value in your business that a product development round or acquisition will reflect in your valuation.
None of this happens automatically. The failure modes in contract manufacturing are well-documented: factories that over-promise and under-deliver on quality, lead times that slip because your order is deprioritised behind a larger client, customs delays caused by incomplete documentation, and the slow erosion of intellectual property if NDAs and supplier agreements are not properly drafted. This guide addresses each of those risks directly.
The single most common question Epic Sourcing receives from UK businesses in 2026 is whether to manufacture in China or Vietnam. The honest answer is: it depends on your product category, your volume, your lead time tolerance, and — critically — whether the UK–Vietnam Free Trade Agreement (UKVFTA) duty savings make Vietnam the better landed cost even when factory gate prices are nominally higher.
China retains decisive advantages in manufacturing depth, tooling capability, raw material availability, and supplier density. If your product requires bespoke injection moulds, complex electronics assembly, or a specialised chemical process, China is almost certainly your answer. Vietnam's manufacturing sector, though growing rapidly, is strongest in textiles, garments, footwear, furniture, and light assembly. It is weaker in electronics and tooling.
| Factor | China | Vietnam |
|---|---|---|
| Manufacturing breadth | Excellent across almost all categories | Strong in textiles, furniture, footwear; limited in electronics |
| Tooling & moulds | World-class, highly competitive pricing | Limited; most tooling still sourced from China |
| Labour cost | Rising, especially in coastal provinces | Generally lower than China |
| UK import duty (typical garments) | 12% (MFN rate, no preferential access) | 0–4% under UKVFTA (with rules of origin satisfied) |
| Sea freight to UK (Felixstowe/Southampton) | ~25–30 days from Guangdong | ~28–35 days from Ho Chi Minh City / Haiphong |
| Typical MOQ (garments) | 300–1,000 units per style/colour | 300–600 units per style/colour |
| Quality consistency | High when factory is well-managed | Good; improving rapidly in established factories |
| IP protection environment | Risk managed via NDA + supplier agreements | Generally lower IP risk than China |
The UKVFTA duty saving deserves special attention. Under the UK–Vietnam Free Trade Agreement, goods that satisfy the relevant rules of origin (typically requiring substantial transformation in Vietnam) can attract 0% or significantly reduced duty rates when imported into the UK. For a garment category that would otherwise attract a 12% MFN duty rate from China, a Vietnam-sourced equivalent could clear customs duty-free — a saving that can more than offset any factory gate price premium. Epic Sourcing calculates this comparison for every client before recommending a sourcing country.
In practice, many UK businesses run a dual-source strategy: China for hard goods, tooled products, and electronics; Vietnam for garments, textiles, and soft goods where the UKVFTA advantage and lower labour costs tip the economics decisively. Epic Sourcing has active supplier networks in both countries and can manage concurrent production across both markets.
Post-Brexit, importing from Asia into the UK involves a compliance framework that is distinct from the EU's CE system. Getting this right before you place your production order — not after your goods arrive at Felixstowe — is non-negotiable. Below are the five key compliance pillars every UK importer needs to understand.
Important compliance warning
Failure to apply the correct product marking (UKCA or CE, depending on the market and product category), obtain an EORI number, or file import declarations accurately through HMRC's Customs Declaration Service (CDS) can result in goods being held at the port, significant penalty charges, or the product being recalled from sale. Always confirm compliance requirements with a qualified customs broker before your first shipment. Epic Sourcing works with a network of licensed UK customs brokers and can make introductions on request.
The UK Conformity Assessed (UKCA) mark is the Great Britain equivalent of the EU's CE mark. It is required for a wide range of product categories — including electrical equipment, toys, personal protective equipment, pressure equipment, and construction products — sold in England, Scotland, and Wales. Northern Ireland continues to accept CE marking under the Windsor Framework for goods sold in the NI market and for goods moving into the EU single market. If your contract-manufactured product falls within a regulated category, you must complete a conformity assessment, maintain technical documentation, and affix the UKCA mark before placing the product on the GB market. Your contract manufacturer in China or Vietnam is unlikely to have completed UK-specific assessments — this is your responsibility as the UK importer.
Import duty is charged on the customs value of goods entering the UK — typically the transaction value (price paid to the factory) plus freight and insurance costs to the UK port of entry. Duty rates vary by commodity code (HS code) and country of origin. Goods from China are subject to MFN (Most Favoured Nation) rates, which for many product categories are 0–5%, though textiles, garments, and some electronics attract rates of 6–12% or higher. Vietnam-origin goods may attract preferential rates under the UKVFTA. VAT at 20% is charged on the duty-inclusive value and is reclaimable by VAT-registered businesses. UK businesses using Postponed VAT Accounting (PVA) can defer the VAT payment to their VAT return, improving cash flow significantly.
HMRC's Customs Declaration Service replaced the older CHIEF system and is now the mandatory platform for all UK import and export declarations. Your customs broker will file import entries through CDS using your EORI number, the commodity code, the declared customs value, the country of origin, and the appropriate procedure code. Errors in CDS declarations — including incorrect commodity codes or undervaluation — can trigger HMRC audits and retrospective duty demands. Ensure your customs broker has your full commercial invoice, packing list, and bill of lading or airway bill before the goods arrive at Felixstowe or Southampton.
An Economic Operator Registration and Identification (EORI) number is mandatory for any UK business importing or exporting goods commercially. You apply for a UK EORI number through HMRC — the process is straightforward and typically completed within 48 hours for VAT-registered businesses. Your EORI number is referenced on all customs declarations and shipping documents. Without it, your goods cannot be cleared through customs. If you are importing for the first time, obtain your EORI number before placing your production order — it takes days, not weeks, but there is no value in discovering you need it when your container is sitting at Felixstowe.
The UK–Vietnam Free Trade Agreement came into force on 1 May 2021. It progressively eliminates tariffs on most goods traded between the UK and Vietnam, with a significant majority of product lines already at 0% for qualifying goods. To claim preferential duty rates, goods must satisfy the rules of origin set out in the agreement — broadly, they must be substantially transformed in Vietnam, with sufficient local content. The manufacturer must provide a Statement on Origin or a Certificate of Origin (EUR.1 or REX-registered exporter statement) on the commercial invoice. Epic Sourcing verifies rules of origin compliance for all Vietnam-sourced orders as part of its standard service.
The table below provides indicative figures for common product categories sourced through contract manufacturers in China and Vietnam. These are illustrative ranges based on Epic Sourcing's experience; actual figures depend on product complexity, materials, specifications, and the specific factory. Request a landed cost estimate from Epic Sourcing for your product category before committing to a production run.
| Category | Source | Typical MOQ | Production lead time | Sea freight (to UK) | UK import duty (approx.) |
|---|---|---|---|---|---|
| Garments / apparel | China | 300–500 pcs/style | 30–60 days ex-factory | 25–30 days | 12% MFN |
| Garments / apparel | Vietnam | 300–500 pcs/style | 35–65 days ex-factory | 28–35 days | 0–4% UKVFTA |
| Consumer electronics | China | 500–2,000 units | 45–90 days ex-factory | 25–30 days | 0–3.7% MFN |
| Homeware / furniture | China | 200–500 units | 30–50 days ex-factory | 25–30 days | 0–6.5% MFN |
| Furniture / soft furnishings | Vietnam | 100–300 units | 35–60 days ex-factory | 28–35 days | 0% UKVFTA (most categories) |
| Plastic / injection-moulded goods | China | 500–2,000 units | 60–120 days (inc. tooling) | 25–30 days | 0–6.5% MFN |
| Health & beauty / supplements | China | 1,000–5,000 units | 45–75 days ex-factory | 25–30 days | 0–6.5% MFN |
Note: Duty rates are approximate MFN or UKVFTA rates for indicative purposes only. Always verify the precise commodity code and applicable duty rate for your product with a licensed customs broker before importation.
Epic Sourcing is a UK-based product sourcing agency with in-country teams in China and Vietnam. We work with British brand owners, e-commerce businesses, and product startups to manage the complete contract manufacturing process — from supplier identification and verification through to quality control, shipment, and customs clearance. We offer three service packages, each designed for a different stage of your product journey.
£699
Source an existing, factory-ready product and brand it as your own. Ideal for businesses testing a new category without the investment of custom tooling or product development.
£1,899
A product customised to your specification — materials, dimensions, colours, and packaging — manufactured to your brief. The standard choice for UK brands building a differentiated product range.
£3,299
Full end-to-end product development including NDA management, factory audits, tooling oversight, inline quality control, and ongoing supplier relationship management. For brands building a long-term, defensible supply chain.
All three packages include access to Epic Sourcing's in-country China and Vietnam teams, who conduct in-person supplier visits, quality checks, and shipment monitoring. Our UK-based account managers handle all client communication in British English and are familiar with HMRC's requirements, UKCA marking obligations, and the customs documentation required for clean clearance at Felixstowe and Southampton.
Book a free 30-minute discovery call with our UK team. We'll review your product idea, recommend a sourcing country, calculate a landed cost estimate, and explain which package fits your stage and budget.
Book Your Free Discovery CallNo obligation. No sales pressure. Just honest sourcing advice from people who do this every day.
Contract manufacturing is a broad term covering any arrangement where a third-party factory produces goods to your specification. Private label manufacturing is a form of contract manufacturing where you apply your own brand to a product — either a factory-standard design (white label) or a customised one (true private label). The distinction matters commercially: white label is faster and cheaper but offers no product differentiation; true private label or bespoke contract manufacturing takes longer, costs more upfront, but produces a product you can genuinely protect and build a brand around. For most UK businesses building a long-term product business, private label or bespoke contract manufacturing is the right model.
The total initial investment includes: your sourcing agency fee (£699–£3,299 with Epic Sourcing), sample costs (typically £100–£500 depending on complexity and number of iterations), tooling costs if your product requires custom moulds or dies (£500–£10,000 depending on complexity), the production order itself, sea freight (typically £1,500–£4,500 for an LCL or FCL shipment to Felixstowe or Southampton), and import duty and VAT. For a first production run of 500 units of a simple consumer product, total landed costs of £5,000–£20,000 are typical, with the unit economics improving dramatically as volumes increase. Epic Sourcing provides a full landed cost calculation as part of its discovery process.
For your first significant production run, a factory audit is strongly recommended — either in person or via a third-party inspection service. Epic Sourcing's Secret Label package includes a full factory audit conducted by our in-country team in Guangdong, Zhejiang, or Vietnam's manufacturing provinces. The audit covers factory capacity, quality management systems, ethical standards, financial stability indicators, and the management team's experience with export orders to the UK market. For smaller initial orders or white label products where you have less at stake, a desktop verification and sample review may be sufficient. Epic Sourcing advises on the appropriate level of due diligence for each client situation.
IP protection in contract manufacturing is a layered process, not a single document. The key steps are: register a design patent or trademark in China and/or Vietnam before sharing your specifications; require all factory contacts to sign a comprehensive NDA that covers product specifications, pricing, and client confidentiality; use a supplier agreement that specifies that tooling, moulds, and product designs remain your property; limit your production brief to only the information the factory needs to manufacture your product; and avoid sharing everything with multiple factories simultaneously. Epic Sourcing drafts and manages supplier agreements and NDAs as part of its Secret Label package, and advises clients on when to seek specialist IP legal advice.
For a typical private label product sourced from China, the process from initial brief to delivery at a UK warehouse typically takes 16–24 weeks. This includes: supplier identification and shortlisting (2–4 weeks), factory negotiation and sample ordering (2–4 weeks), sample review and revision rounds (2–6 weeks depending on complexity), production (4–8 weeks ex-factory), sea freight from Guangdong to Felixstowe or Southampton (25–30 days), and customs clearance (1–3 days with a good customs broker). Vietnam sourcing adds approximately 3–7 days to the sea freight leg but otherwise follows a similar timeline. Products requiring custom tooling add 4–8 weeks to the front of this timeline.
Epic Sourcing has helped UK businesses across every product category — from consumer electronics to homeware to apparel — build reliable supply chains in China and Vietnam. Talk to our UK team today.
Epic Sourcing UK · hello@epicsourcing.co.uk · 07551 136406 · epicsourcing.co.uk
