China Buying Trip Checklist: Visa, Itinerary, Samples and Customs
Published by Aeonix Trade.

Last fact-checked: November 9, 2026.
Two buyers plan ten days in China, "Yiwu plus a couple of factories," and ask the supplier for an invitation letter the week before the flight. The Ministry of Foreign Affairs' visa instructions say an M visa, the category for commercial and trade activities, needs invitation documents from a trade partner in China, and they list what those documents must contain. A China buying trip is that file, an itinerary you can actually walk, and a plan for the samples on the way home. It is not a tourist weekend with a factory added on.
A typical case
The pair want cushion hardware and a small run of storage boxes. They have a trading company in Yiwu and one factory in Ningbo that already sent photos. They do not have a written specification. They plan to land in Shanghai, take the train to Yiwu, then a car to Ningbo, and fly home with a suitcase of samples. Nothing in that plan is wrong. The parts that fail are the visa file, the days that are too full to take notes, and the samples that leave China as "gifts" and arrive at home as commercial goods.
The visa is an M file, not a guess
The National Immigration Administration's English text of the exit and entry law says the M visa is issued to persons who come to China for commercial trade activities. The Ministry of Foreign Affairs' visa instructions, the page dated in the August 2026 path and read on 9 November 2026, say the invitation documents for an M visa are documents on commercial activities or invitations to trade fairs. They must include the invited person's name, gender and date of birth; the reason for the visit, arrival and departure dates, places to be visited, the relationship with the inviting entity, and who pays for the travel; and the inviting entity's name, phone number, address, official seal, and the signature of the legal representative or the inviting person.
A one-line "please come to our factory" email does not have those fields. A seal that is a contract chop, or a signature that is printed rather than signed, is a problem some posts reject. The MFA page also says you follow the embassy or consulate for the place you apply, and it names the China Online Visa Application system. This page does not list visa-free passports and does not state a fee. Posts publish their own fees and their own extra papers. Read the post that matches the passport you hold. Do not copy another country's notice.
An itinerary you can use
Yiwu market and a Ningbo factory are a reasonable pair if the products justify both. They are a bad pair if you also want Shenzhen electronics in the same week. Give the market one full day for the category you came for, and the factory a separate day for the line, the packing and the unfinished questions. A day that starts with a three-hour car transfer and ends with a banquet is not a factory audit.
Write the questions down before you fly. Is the company the manufacturer or a trader? What is the minimum they will actually run? Which certificate do they hold for your market, and can you see it? What is the lead time after sample approval? Take photos of the sample and of the defect you will not accept. The service for a hosted trip is on China buying trips. A market day with a guide is a different product: Yiwu market visit. If you would rather have someone in the market without flying, that is a Yiwu agent, not a substitute for seeing the line when the product is new.
Samples are still cargo
A suitcase of hardware is commercial if you will use it to place an order, even if you paid nothing. China export and your home import can both want a declaration. Do not describe the samples as personal effects to dodge either side. List each piece, the quantity and a value. If the value or the material needs a licence, send the samples as cargo with a broker instead of in the cabin. The way to order samples without flying is on sample orders. What your customs authority does when goods arrive is on what happens when cargo arrives. The first-time paperwork habit is on the compliance checklist.
Pay for the trip and the samples in a way you can show later. A cash envelope at the booth with no receipt is how a sample becomes an argument. Who you are paying, and whether that company exists, is worth an hour before you wire anything: verify the supplier before payment.
Before you book the flight
- Read the visa post for the city where you will apply. Do not use a friend's post.
- Ask the inviter for every field the MFA page lists, including the seal and the legal representative's signature.
- Cap the trip at the market and the factories you can actually brief.
- Write a sample list with values before you pack.
- Know how your home customs treats commercial samples. A gift label is not a ruling.
| Day | What it is for | What to leave with |
|---|---|---|
| Market | Compare three booths on one specification | Prices, minimums, photos |
| Factory | See the line and the packing | A written sample standard |
| Buffer | Re-ask what was unclear | Nothing new, just the notes |
Mistakes
- Requesting the invitation a week before departure, then discovering the post wants the seal and a signed legal-representative line.
- Treating an M visa as optional because someone online said your passport is visa-free. This page will not confirm that. The post will.
- Booking five cities. You will collect catalogues and no decision.
- Putting commercial samples in the suitcase and declaring nothing at home.
- Paying a booth in cash and flying home with no name that matches a later invoice.
Questions buyers actually ask
Do I need an invitation letter?
For an M visa, the MFA instructions say yes: invitation documents from the trade partner, with the fields listed above. A trade-fair invitation can be that document if it carries the same information. Check the post anyway.
Can the sourcing agent be the inviter?
Only if they are the entity that will sign and seal, and the relationship and the payer are stated honestly. An invitation that names a company you will never visit is a weak file.
Should I bring the samples back myself?
Only when the quantity, the value and the material are boring enough for both the export and your import. If you are unsure, ship them with a commercial invoice and let a broker clear them. A sourcing agent can arrange that without you carrying the case.
How do I turn the trip into an order?
Come home with the specification, the sample notes and the company names, and send them through the RFQ form while the notes are still fresh. A trip without a written standard is a holiday.
The fair logistics around this are Canton Fair 2027 Dates, Phases and Which Products Each Phase Covers, badge and registration fees, whether a small buyer should go, and opening hours and a day plan.
Official sources
- Ministry of Foreign Affairs: visa application instructions. M visa invitation documents and the fields they must contain, and the instruction to follow the local embassy or consulate. Read 9 November 2026.
- National Immigration Administration: exit and entry provisions. The M visa is for people coming to China for commercial trade activities. Read 9 November 2026.
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