Not sure where to start with product sourcing for your UK eCommerce business? Here's the plain-English, step-by-step guide from finding your first factory to landing stock in your warehouse.
In summary: Sourcing products for your UK eCommerce business involves finding the right manufacturer or supplier, verifying their quality, negotiating terms, and managing the import process from China or Vietnam to the UK. This guide walks you through the 7-step process — from validating your product idea to landing stock in your warehouse — with practical tips from Epic Sourcing's team who help British businesses do exactly this every day.
Here's a scenario I hear more times than I can count. A sharp-minded entrepreneur somewhere in the UK has a product idea — let's say a set of customisable gym accessories, or a range of branded travel mugs — and they know they want to manufacture it in China or Vietnam. But when it comes to actually doing it? The sourcing process feels like staring at a map with no legend.
Where do you even start? How do you find a factory? What happens with import duty? How do you make sure you don't receive a container of products that look nothing like the sample?
I've been helping UK businesses navigate exactly this for years, and the good news is: it's not as opaque as it looks. There's a process. Follow it, and you give yourself an enormous advantage over the thousands of UK eCommerce sellers who wing it and end up with expensive lessons rather than profitable products.
Here's the step-by-step guide.
This one sounds obvious, but you'd be surprised how many UK sellers start contacting factories before they've validated whether anyone actually wants their product. Sourcing from China or Vietnam has real costs — sampling fees, minimum order quantities, freight, import duty — and you want to know there's a market before you commit.
Before approaching a single factory, do the following: check Amazon UK and eBay for existing products in your niche. Look at Google Trends for search interest. Check Alibaba to understand how many suppliers already make the product. If suppliers exist and competitors are selling, that's a good signal. An empty market isn't always an opportunity — sometimes it's a warning.
Sourcing Hack #1: Before committing to a product, spend £200–£500 on a simple landing page and some paid social ads. If you can get email sign-ups or pre-order interest without having stock, you know demand is real. This is how the smartest UK eCommerce founders validate before they invest in production.
Once you've validated your product, the next step is finding who actually makes it. For most UK eCommerce sellers, this means manufacturers in China or Vietnam. There are several paths:
Alibaba — the most well-known marketplace for Chinese manufacturers. It's useful for discovery, but requires careful vetting. Suppliers on Alibaba vary enormously in quality, reliability, and transparency. Our guide to safety checks on Alibaba covers what to look for before placing your first order.
Trade shows — the Canton Fair in Guangzhou (held in April and October) is the world's largest trade show, giving you face-to-face access to thousands of Chinese manufacturers. If you're serious about sourcing at scale, it's worth the trip. We have a Canton Fair guide that explains exactly how to make the most of it.
A sourcing agent — the fastest and most reliable route for most UK eCommerce sellers. Rather than navigating overseas factories yourself, a sourcing agent identifies, vets, and manages manufacturers on your behalf. For a clear picture of what this involves, this overview of the sourcing agent's role is a good starting point.
Sourcing Hack #2: When reviewing factories on Alibaba, filter for "Verified Supplier" status and prioritise those with 3+ years on the platform. Then pay close attention to how they answer your initial enquiry. A factory that replies with a generic price list without asking about your product specifications is one that doesn't understand bespoke work — move on.
Never — I repeat, never — commit to a production order without receiving and thoroughly assessing a sample first. This is non-negotiable.
Samples from Chinese or Vietnamese factories typically cost £20–£100 depending on the product, and take 1–3 weeks to arrive. When your sample arrives, assess it against your specifications ruthlessly. Check dimensions, materials, stitching or finishing, branding placement, and any functional requirements. If the sample needs amendments — and it almost always does on the first round — provide detailed, photo-annotated feedback and request a revised sample. This iterative process is normal and is how professional brands refine products before mass production.
Sourcing Hack #3: Create a simple spec sheet before requesting your sample. Include dimensions, materials, colours (with Pantone references), labelling requirements, and any regulatory markings (CE, UKCA). Sending a visual spec sheet alongside your written brief dramatically reduces miscommunication and speeds up the sampling process by weeks.
This is where many UK eCommerce sellers get an uncomfortable surprise. The factory price is just the starting point — your landed cost is what actually matters for your margin calculation.
When importing from China to the UK, your landed cost includes: factory price + sea or air freight + UK import duty + VAT (paid at the border, but reclaimable if you're VAT-registered) + customs clearance fees. UK import duty rates vary by product: clothing typically attracts 12% duty, electronics 0–5%, toys 4.7%. These rates are applied to the CIF value of your shipment at the UK border by HMRC. Import VAT is currently 20% on the duty-inclusive value.
For a full walkthrough of duties, VAT, HS codes, and what to expect at customs, the complete guide to importing from China to the UK covers it all in plain English.
Sourcing Hack #4: Build a landed cost calculator in a spreadsheet before committing to any production order. Include: unit price (FOB) + freight per unit + duty per unit + VAT per unit + customs clearance per unit. Divide by total units. That's your landed unit cost. Work backwards from your target retail price to confirm you can hit your desired margin. If the numbers don't work, negotiate on price or reconsider the product.
Once you've approved your sample and confirmed your landed cost model, it's time to place your production order. Key things to nail down in writing before production begins:
Payment terms — most Chinese factories require 30% deposit on order and 70% balance before shipment. This is standard practice. Be wary of factories requesting 50–100% upfront for a new relationship — it significantly increases your risk.
Production timeline — get a written production start date and expected completion date. Factor in Chinese public holidays: Golden Week in October and Chinese New Year in January/February can cause significant delays if you haven't planned around them.
Packing and labelling specifications — confirm exactly how goods need to be packed, labelled, and documented before they leave the factory. Changing this after production is expensive and time-consuming.
For guidance on negotiating with Chinese manufacturers as a small business, our piece on cutting costs by sourcing directly covers leverage, timing, and how to approach the negotiation without losing face or the relationship.
Quality control (QC) is the step most first-time UK importers skip — and the one they most regret skipping. Even from a factory that produced a perfect sample, production runs can contain defects. Catching these before goods leave the factory is infinitely cheaper than discovering them when they arrive in your warehouse.
At minimum, request a pre-shipment inspection from a third-party QC provider. These cost roughly £200–£400 per inspection and cover random sampling of your production run against your spec sheet. Major QC providers operating in China and Vietnam include SGS, Bureau Veritas, and Intertek.
If you're working with a sourcing agent, QC coordination is typically included in the service. It's one of the core reasons our White Label and Private Label packages include pre-shipment inspection as standard — because it's not optional if you care about what arrives.
Sourcing Hack #5: Ask your QC inspector for a photo report, not just a pass/fail result. A good pre-shipment inspection report includes 30–50 photographs of the product, packaging, carton markings, and any identified defects — with a breakdown by defect severity (Critical, Major, Minor). This report is also useful documentation if you need to raise a quality dispute with the factory later.
The final step is getting your goods from the factory to your warehouse. You'll need a freight forwarder — a logistics company that books your sea or air shipment and handles UK customs clearance with HMRC on your behalf.
Sea freight from China to UK ports typically takes 28–35 days and is cost-effective for larger shipments. Air freight takes 3–7 days but is 4–6x the cost — generally only justifiable for urgent restocks or high-value goods. Your freight forwarder handles the import declaration with HMRC, collecting import duty and VAT on your behalf before releasing your goods.
If Vietnam is on your radar as a sourcing destination — particularly for clothing and apparel — our guide to Vietnam clothing manufacturing for UK brands covers the UKVFTA duty benefits and how to find reliable Vietnamese factories.
A realistic minimum budget for your first sourcing project is £3,000–£8,000. This covers sampling fees (£50–£200), a minimum production run (typically 500–1,000 units at £3–£8 per unit), sea freight (£300–£800 for an LCL shipment), import duty (varies by product), and customs clearance (£100–£250). You can start smaller, but margins become difficult below these quantities.
No — you can source directly from Chinese manufacturers through Alibaba or trade shows. But for most UK eCommerce sellers, a sourcing agent saves significant time, reduces risk, and typically pays for itself through better factory pricing and fewer costly mistakes. The question is whether your time and risk tolerance are better served by a self-managed approach or a specialist partner.
White label products are generic items that already exist, to which you add your branding. Private label products are manufactured to your specific design or customisation. White label is faster and cheaper to start; private label creates a more distinctive product and a stronger brand moat. For a detailed comparison, see our white label vs private label guide.
A typical first sourcing project takes 3–5 months from initial factory contact to goods arriving in the UK. This includes: 1–2 weeks for factory research, 2–4 weeks for sample production, 1–2 weeks for sample review and amendments, 30–60 days for production, and 28–35 days for sea freight. Planning your inventory cycle around these timelines is essential for avoiding stock-outs.
Absolutely — and this is one of the most exciting things about direct sourcing. The same Chinese and Vietnamese factories that produce for global brands also work with small UK businesses. The key differentiator is having the right sourcing process and supplier relationships. As our OEM guide for small businesses explains, the playing field is more level than most people think once you know how to navigate it.
Sourcing products for your UK eCommerce business doesn't have to be a leap in the dark. It's a process — and once you've run through it once with a product that works, you'll have the framework and supplier relationships to do it again and again.
If you'd rather not navigate that process alone, that's exactly what Epic Sourcing exists for. Our discovery call is the best starting point — tell us about your product, your business, and where you're at, and we'll tell you straight how we can help. You can also reach us at hello@epicsourcing.co.uk or call 07551 136406.
Written by TK Wang, Founder & Director @ Epic Sourcing
