Insights, resources
and more.

Most sourcing advice tells you to check a supplier's certifications, review their samples, and call their trade references. Fewer guides mention something more basic that comes before any of that: whether the supplier is actually located where your product is made. If you've spent any time on Alibaba or 1688 searching for a specific product, you've likely noticed something odd. Search for plastic toys and a disproportionate number of suppliers list an address in or near Shantou, Guangdong. Search for eyewear and Danyang, Jiangsu keeps coming up. Search for small household goods sourced in bulk and half the results trace back to Yiwu. That's not a coincidence in how the platforms rank sellers. It reflects where China's manufacturing actually happens. This article explains why that pattern exists, what it means for how you should evaluate a supplier's location, and how to weigh a quote before you commit to an order. I've reviewed sourcing patterns across more than 30 of these city clusters to put this together, and the same economic logic explains nearly all of them: proximity between suppliers isn't incidental to Chinese manufacturing. It's the mechanism that makes it work. Why China's Factories Cluster by City, Not by Company A single factory rarely does everything a finished product needs. It needs raw materials, components, tooling, packaging, and a way to get the finished goods to a port. When all of that has to be assembled from scratch, on trust, across long distances, every order becomes slower and more expensive to fulfil. China's manufacturing cities solve this by putting the entire chain in one place. In Chenghai, Guangdong, more than 90% of the components needed to build a toy can be sourced locally, from mould-making to plastics processing to packaging to export trading. That's why a Chenghai factory can turn around a new toy design in as little as seven days, while a factory attempting the same build outside the cluster has to source components from suppliers scattered across the country first. This is what economists call agglomeration: firms doing similar or complementary work cluster together because proximity itself becomes a competitive advantage. Suppliers show up because factories are there. Factories show up because suppliers are there. Skilled labour concentrates because both are there. Once a city crosses a certain density threshold in one category, it becomes self-reinforcing, and that's difficult for a factory in an unrelated city to replicate no matter how competitive its labour costs are. The Economics Behind One-City-One-Product This pattern is the default structure of Chinese manufacturing, and it shows up the same way across wildly different product categories. Dongguan, Guangdong assembles electronics, garments, and furniture at enormous scale (30,000+ factories) because it sits 30 minutes from Shenzhen's component ecosystem and 45 minutes from Guangzhou's port and commercial infrastructure. Suzhou, Jiangsu became China's semiconductor and precision electronics hub by building the specialised cleanroom facilities and technical labour pool that chip and precision-component production needs, capabilities that took years to concentrate and aren't easily rebuilt elsewhere. Keqiao, in Shaoxing, Zhejiang, runs one of the world's largest textile and fabric trading markets because dyeing, weaving, and finishing capacity all sit within the same few districts, letting a buyer source fabric, get it finished, and move it to a garment factory without shipping it across the country in between. In each case, the "why here" answer is the same: the cluster didn't get chosen for a product. It grew because early manufacturers of that product needed the same suppliers, tooling, and labour, and once enough of them were in one place, staying there became the rational choice for every new entrant. The practical result for a buyer is this: a factory inside the right cluster isn't just cheaper because of local competition. It's faster to iterate with, has more component and material options a few minutes away, and can usually absorb small-batch or rush requests that a factory outside the cluster would have to quote at a premium, if it can take them at all. A Working Map: Which Cities Make What This isn't an exhaustive list of every manufacturing city in China, but it covers the clusters a foreign buyer is most likely to run into by product category.

Most Canton Fair advice focuses on logistics: how to register, which hall covers your product category, how to budget for an interpreter. That's useful, but it solves the wrong problem. Once you're standing at a booth with five minutes of a sales rep's attention, the thing that actually determines whether this trip was worth it is what you ask, not how you got there. If you've walked a trade show floor before, you know the pattern. You stop at a booth, someone hands you a catalogue, quotes a price, and the conversation moves on before you've asked anything that would actually help you compare this supplier to the next one. By the third day, you have a stack of business cards and no reliable way to tell which suppliers were factories, which were resellers, and which quoted you an aspirational price they'll walk back once you're home and can't easily verify it. This playbook is built around what to ask, in what order, and why each question matters, based on the patterns that separate a good supplier meeting from a wasted one on the Canton Fair floor. The 6 Questions, At a Glance

Wamo Business Account Scorecard

The question buyers ask is usually "is this a factory or a trading company?" It is the wrong first question. The right one is: does it actually matter for this order? A lot of sourcing content treats "factory" as a synonym for good and "trading company" as a synonym for risk, and pushes buyers to interrogate every supplier until they can prove factory status. That instinct is not wrong, but it is incomplete. Some buyers who insist on factory-direct are solving a problem they do not have, while others hand large, IP-sensitive orders to trading companies without asking who actually controls the production line. Here is what buyers are really trying to answer when they raise the factory-versus-trader question: will the colour, spec, or quality stay consistent order after order, will the price hold up against a direct comparison, and if something goes wrong, who is actually accountable. None of those questions are answered by the word "factory" or "trader" on its own. Get this wrong in either direction and it costs you. Insist on factory-direct for a small, mixed-category order and you will spend weeks vetting suppliers to save a margin that a trading company would have absorbed anyway. Assume a trading company is "basically a factory" for a custom, IP-heavy product and you may find your specifications have passed through a subcontractor you never vetted. This guide covers what actually separates the two, when each one is the better call, how to verify which one you are dealing with, and, because this is where most sourcing guides stop short, what the choice means for how you pay your supplier and how you should structure your own company to trade with them. If you have not yet locked in a supplier at all, our guide to finding the best Chinese suppliers is the step before this one. What "Factory" and "Trading Company" Actually Mean Factory A factory is a registered entity that owns or operates the production line making your goods. Its Chinese business licence lists manufacturing (制造 or 生产) inside its approved business scope. It employs the production workers, buys the raw materials, and ships what it makes. Buying factory-direct gets you the lowest achievable unit price, direct visibility into production, and a single accountable party if quality slips. The trade-off is specialisation: a factory that makes stainless steel kitchenware will not also make plastic components or apparel, so a mixed-category order means juggling several factory relationships across several provinces. Factories also vary widely in sophistication, roughly across three tiers. A Tier 1 factory runs the kind of systemised, documented process you would expect from a supplier in the US or Canada, with the price to match. A Tier 3 factory is closer to a workshop: a small space, less formal systems, and a cheaper price, but with output quality that depends more on who happened to be on the floor that day. Most Chinese factories sit somewhere in between. Ask directly which tier a factory operates at, and weigh that against how much your product actually needs Tier 1 discipline. It is also worth asking a factory exactly which parts of your product it makes in-house. Very few Chinese factories produce 100% of a finished product's components themselves, even when they genuinely are the "factory" of record. A microphone factory, for example, typically makes the main circuit board itself but sources the housing, buttons, and other components from elsewhere. The same is true at much larger scale: no single factory produces every component of an iPhone. That is not a red flag by itself, but it does mean "I'm working with the factory" is not a complete answer. Ask which parts it physically makes, and which parts it too is sourcing from someone else. Trading Company A trading company buys from one or more factories and resells to you, with a margin added. Its business licence scope references trade (贸易), import/export (进出口), or distribution, not manufacturing. It does not own the production line, so its ability to influence your lead time, spec changes, or quality fixes depends entirely on its relationship with the factory behind it. What it usually offers instead: stronger English communication, a broader product catalogue spanning multiple categories, lower minimum order quantities, and a single point of contact for goods that would otherwise come from several factories. A trading company's main competitive advantage is service and communication. A factory's main competitive advantage is production itself. Neither is automatically better. They are optimising for different things. Every extra party in the chain is also an extra chance for your instructions to get distorted, the same way a message changes as it passes through a long line of people. That is the real cost of an intermediary: not dishonesty, just distance from the production line. It is also, in fairness, not a one-sided cost. A trading company adds its own quality checks on top of the factory's, which means an order routed through a trading company can end up with three layers of quality control instead of one: the factory's own process, the trading company's inspection, and yours. Whether that is worth the markup depends on how much you trust your own ability to catch defects without it. Neither label is a verdict on trustworthiness by itself. A well-run trading company with strong factory relationships can outperform a mediocre factory with poor English and no quality process. The distinction matters because it changes what you are actually buying: production control, or coordination. Factory vs Trading Company at a Glance