Buying components from China is not difficult. Buying them without surprises requires getting four things right: who is responsible for the goods at each stage, when money moves, how you verify quality before it ships, and what the paperwork has to say when it arrives.
This guide covers those four areas in the order they arise in a real transaction, with the trade-offs spelled out rather than a list of tips.
Before you request a quote: define the responsibility line
The single most common source of dispute is a misunderstanding about who arranges and pays for what between the supplier’s loading dock and your receiving bay. Settle this before price discussion, because it changes the number you are comparing.
| Term (Incoterms 2020) | Supplier is responsible until | When it makes sense |
|---|---|---|
| EXW — ex works | Goods available at their premises | You have your own forwarder in China and want full control. Watch export clearance, which under EXW may become your problem. |
| FOB — free on board | Loaded on the vessel at the port of shipment | The standard choice for sea freight. Clean split: supplier handles export, you handle freight and everything after. |
| CIF — cost, insurance, freight | Delivered to your destination port, freight and marine insurance paid | Simple for occasional buyers. Convenient, but the supplier’s insurance is often minimum cover and the freight margin is hidden in the price. |
| DAP — delivered at place | Arrived at your named address, import duties unpaid | When you want a single delivered price but must retain control of customs declaration and duty. |
| DDP — delivered duty paid | Delivered to your door, duties and import formalities paid | Easiest to administer, but you lose visibility of the duty rate actually applied and are exposed if the declaration is wrong in your name. |
Two practical cautions. First, a “DDP” price built on an incorrect tariff classification can leave you with a retrospective duty assessment years later, because the importer of record — you — is liable for the declaration regardless of who arranged it. Second, when comparing quotes, compare like with like. An EXW price and a DDP price are not the same offer, and the gap is frequently larger than the difference between competing suppliers.
Payment terms and the risk ladder
Payment terms are the clearest statement of how much trust exists in a relationship. Work up this ladder as confidence grows; do not start at the top.
- Full payment in advance. Maximum risk to you. Acceptable only for small sample orders with a supplier you can afford to lose, or where the amount is genuinely trivial.
- Deposit and balance before shipment (commonly 30/70). The industry default. The deposit funds materials, the balance is released against shipping documents. Insist on the balance being triggered by documents you can verify — a bill of lading copy, an inspection report, loading photographs.
- Deposit, balance against documents through the banks (documents against payment, or a letter of credit). Slower, costs bank fees, and requires the documents to be precisely correct — but it protects both sides on large orders.
- Payment after delivery, or open account with credit insurance. The end state, available to buyers with real leverage or a credit-insured relationship. This is where long-term supplier relationships arrive, not where they start.
Practical add-ons worth negotiating regardless of tier: a retained final payment for a first order, released after your incoming inspection; and a written agreement that tooling, drawings and the right to purchase the item remain available to you if the relationship ends.
Verifying the supplier before money moves
Document checks are cheap and eliminate most bad counterparties. Request and scrutinise:
- Business licence — the legal name, registration number, registered capital and, importantly, the registered scope of business. A supplier whose scope does not cover the product is usually a trader, which is not disqualifying, but you should know which you are dealing with.
- Product certificates and test reports — ask for the certificate number and verify it with the issuing body. A PDF alone proves nothing.
- Bank account details in the company name. Payments to an account held by an individual or a third company are the most common vector for fraud. Verify the beneficiary name against the licence.
- Factory evidence — photographs and short video of the production area and the specific item, ideally with a verifiable detail such as a dated indicator. Better still, a live video call during production.
- References — other export customers, or a track record of shipments through a channel you can verify.
Inspection: the part that protects the money
Acceptance criteria should be agreed in writing before the order is placed, expressed as measurable attributes rather than adjectives. “Good quality” is not a specification; “electrical ratings within ±5% of the datasheet, no visible damage, packaging intact” is.
First-article approval
For anything recurring, approve one unit first: send the drawing or the original sample, receive the first article, measure it, test it, record the result, and keep the approved sample as the reference. That sample is what settles later arguments.
Pre-shipment inspection
For production orders, inspect before the balance is paid and before the goods leave. A third-party inspection on a defined sampling plan is the standard approach; if you are buying in small quantities, at minimum require photographs and a video of the actual shipment being packed, with the number of cartons visible. The point is to make the shipment independently verifiable rather than to describe the general standard of the factory.
What to inspect on industrial components
- Identity: the part number on the label matches the order, character for character.
- Electrical or mechanical parameters: verified against the datasheet, not against a similar part.
- Physical condition: damage, corrosion, seal integrity, terminal security.
- Traceability: batch or serial markings where the part requires it — critical for anything with a calibration or safety function.
- Packaging: appropriate for the item and the transport mode, with the correct moisture and static protection.
The documentation pack
Correct paperwork prevents the two failures that cost the most: goods held in customs, and a declaration that is later found wrong.
- Commercial invoice — seller and buyer as legal entities, the Incoterm, declared value in the agreed currency, quantity, unit price, and a clear description of the goods.
- Packing list — carton count, weights, marks and numbers matching the physical shipment.
- Correct tariff classification — the single most important field. Classification determines duty rate, and the same physical article can fall under different headings depending on its function and construction. Always confirm against your own country’s current tariff schedule rather than assuming the code the supplier uses for their exports is right for your imports.
- Certificate of origin where a preferential rate may be available.
- Certificates required by your market — electrical safety, EMC, and where applicable machinery or hazardous-area approvals. These are a function of how you will use the part, so the requirement is yours to define.
Duties, tariffs and the biggest source of stale advice
Tariff rates, trade measures, preferential arrangements and low-value import thresholds all change, and they change faster than any published guide — including this one — can stay current. Material written a year ago about duty rates should not be relied upon.
The reliable method is a short, repeatable check before each significant purchase:
- Identify the correct tariff heading for your item using your own country’s customs schedule, not the supplier’s export code.
- Check the current rate and any applicable trade measures or additional duties directly with your customs authority or your customs broker’s tariff database.
- Check whether a preferential arrangement applies to the origin of the goods, and whether the required origin evidence can be obtained.
- Model the landed cost under the classification you intend to declare, including duty, processing fees and internal transport — not just the FOB price.
- Keep the evidence of your classification reasoning on file. If it is ever questioned, the file is your defence.
This is also the strongest argument for buying on a term such as FOB or DAP where you remain the importer of record and can see the declared value and classification for yourself.
Choosing the transport mode
| Mode | Best for | Trade-off |
|---|---|---|
| Express courier | Samples, urgent single parts, small high-value items | Highest cost per kilogram; courier handles clearance but on its own terms |
| Air freight | Urgent, moderately sized shipments; anything where downtime cost exceeds freight premium | Cost scales with weight and volume; needs your own broker |
| Rail | Eurasian routes where sea is too slow and air too expensive | Route-dependent reliability and capacity; transit time variable |
| Sea LCL | Moderate volumes, consolidation with other suppliers | Slow, and consolidation adds handling and delay risk |
| Sea FCL | Full container volumes, heavy or bulky goods | Lowest cost per unit, but you commit a container’s worth of stock |
For components, the decision is usually economic rather than logistical: compare the freight premium of the faster mode against the cost of a day of downtime and the carrying cost of the extra stock the slower mode forces you to hold. In practice, spare parts for critical machines almost always justify air, and bulk consumables almost never do.
Packaging that survives the journey
- Static and moisture protection for electronics: antistatic bags, moisture-barrier bags with desiccant where humidity cycling is expected, and humidity indicator cards so you can tell on arrival whether protection held.
- Shock protection sized to the item’s fragility, not to the box. Heavy items need palletisation and edge protection, not more foam.
- Seaworthy packing for anything travelling by sea: steel or heavy-duty crates for machined parts, corrosion inhibitor on exposed surfaces, and no reliance on cardboard in a humid container.
- Marking consistent with the packing list, so the shipment can be reconciled against documents before it is unpacked.
Building the supplier file
Keep one file per supplier, containing the licence details, verified bank information, certificate evidence, agreed acceptance criteria, the approved first-article record, and the history of shipments with their inspection outcomes. This file is what allows you to stop re-verifying from scratch on every order, and it is the difference between a series of transactions and a supply chain.
Frequently asked questions
How do we compare quotes that use different Incoterms?
Convert every offer to a single basis — usually delivered to your door with duty paid, or FOB with your own estimated freight and duty added — using your own numbers for freight and duty. A supplier’s freight estimate is a commercial input, not a benchmark.
Should we always insist on third-party inspection?
Not always, but always on a first order, on any order where the value makes inspection trivial by comparison, and on anything going into a critical application. For repeat orders from a proven supplier, documented self-inspection with photographs is often sufficient.
What is the safest way to pay a new supplier?
A deposit against a verified bank account in the supplier’s legal name, with the balance released against shipping documents and an inspection result. Never pay to a personal account.
Who is liable if the tariff classification turns out to be wrong?
Whoever is recorded as the importer of record, regardless of who arranged the transport or completed the DDP price. This is the main reason to retain control of the declaration yourself.
Where do most first-time imports go wrong?
Incomplete acceptance criteria, payment to an unverified account, a declared value that does not reflect the transaction, and no pre-shipment verification. All four are avoidable with paperwork agreed before the order is placed.
Planning a first import or consolidating suppliers? Send your requirement — part numbers, quantities, target date and destination — to [email protected]. We will confirm sourcing options, propose a shipping and documentation plan, and quote on the term that suits you.
Related reading
- How to Find Good Suppliers in China: A Practical Vetting Framework
- Consolidating Purchases and Shipping from China: A Practical Guide
- Sourcing into Restricted Markets: Payment, Compliance and Logistics
- Obsolete and Discontinued Industrial Parts: The Complete Sourcing Playbook
- Pre-shipment inspection checklist for industrial parts
- Second source qualification checklist for legacy spare parts