A Year After the Trade Show, a Bill Arrived from Chinese Customs
ATA Carnet Guide for Duty-Free Trade Show Samples - How It Differs from Regular Customs Clearance, Issuance by the Korea Chamber of Commerce and Industry, Validity and Security, What Happens When Samples Are Sold or Lost, and a Checklist from Departure to Return

Hello, this is StartMade.

A company that makes small kitchen appliances took a booth at a trade show in Shanghai. It brought about 30 samples in on an ATA Carnet and cleared Chinese customs without paying any duty or VAT. The show went well. On the last day, a buyer offered to purchase 12 of the display samples on the spot, and the staff member, happy to lighten the load home, took the cash and handed them over.

On the way home they carried out only the remaining samples, and the carnet went into a drawer at the office. The problem surfaced about a year later. The Korea Chamber of Commerce and Industry (KCCI) called: Chinese customs had claimed duty and VAT on 12 items that were never re-exported. The tax plus penalties came out of the security the company had posted when the carnet was issued — and the total was not far off what the buyer had paid for the samples.

An ATA Carnet lets you take trade show samples abroad and bring them back without paying tax. It is a convenient system, but it rests on one promise: what goes out comes back unchanged. Break that promise and the cost shows up long after the show. This article covers what a carnet is and how it differs from regular customs clearance, how KCCI issues it, validity and security, what happens when samples are sold or lost on site, and a checklist from departure to return.

We covered trade show participation in general — booth preparation, handling buyers — in Episode 17. This article focuses only on sample clearance, and specifically on the carnet system itself.

A carnet does not exempt you from tax; it suspends it. If the goods come back unchanged within the deadline, the suspended tax disappears. If they don't, it is settled out of your security. The moment you sell a single sample on site, that item is no longer carnet goods.

1. What Is an ATA Carnet

An ATA Carnet is an international customs document for goods you take abroad temporarily and bring back. "ATA" comes from the French and English "Admission Temporaire / Temporary Admission," and "carnet" means a booklet. As the name suggests, it is issued as a booklet of bound vouchers.

Between member countries of the ATA Convention, this one booklet handles the export from Korea, temporary import into the destination, re-export from the destination, and re-import into Korea. You don't need to deposit duty or VAT with the foreign customs office because the chambers of commerce in each country guarantee each other. In Korea the guaranteeing association is KCCI; in China it is the China Chamber of International Commerce (CCOIC).

Customs officers tear out a voucher at each step and stamp the remaining counterfoil before handing the booklet back. If something goes wrong later, those stamps are your proof that the goods went out properly and came back properly.

2. How It Differs from Regular Customs Clearance

You can take samples without a carnet. You can ship them as a regular export, or deposit security with Chinese customs and file a temporary import declaration. The difference lies in the paperwork and in how your money gets tied up.

If you're only hand-carrying a few samples, a regular baggage declaration is sometimes enough. But if the goods are valuable, if they are equipment or prototypes that must come back, or if you plan to take the same samples to several shows, a carnet is far easier. Deposits with Chinese customs can take months to be refunded; with a carnet, none of your cash is stuck abroad.

For the basics of Korean import clearance see Episode 89, and for how duty and VAT work see Episode 24.

3. When You Can and Can't Use a Carnet in China

The ATA Convention covers several purposes — goods for exhibitions, commercial samples, professional equipment and more — but each country accepts a different set. China has long accepted carnets mainly for goods displayed at exhibitions and fairs, with other purposes either narrower or conditional. That means if you're only bringing samples for factory meetings with no trade show involved, you may not be able to use a carnet. The application has a field for intended use, so check with KCCI first whether that purpose is accepted in China.

Many shows appoint an official forwarder (主场运输商) that handles all deliveries into the venue. If you ship your samples as cargo, ask in advance whether that forwarder has handled carnet cargo before and whether it will take care of the Chinese customs formalities. If you hand-carry them, you'll need to get the white voucher stamped at airport customs yourself.

4. How KCCI Issues a Carnet

Carnets are issued by the Korea Chamber of Commerce and Industry. You can apply online, and if the paperwork is in order it usually comes out within a few days — but it's safer to finish applying two weeks before departure. Fixing the goods list or topping up security documents can push your timeline back quickly.

The goods list deserves the most care. Chinese customs checks the physical goods against the list on the white voucher, and a single unit off in quantity or a slightly different model name will slow the check down. Even for the same model in different colors, list quantities color by color, and include serial numbers for electronics. Use actual transaction prices for values. Understating them lowers your security, but can work against you in insurance claims or customs settlement if anything is lost or stolen.

Validity

A carnet is valid for up to one year from issuance. Within that period you can travel back and forth on the same booklet, but the re-export deadline Chinese customs sets can be shorter. China usually allows around six months for temporarily imported goods, so a one-year carnet does not mean you can leave samples there for months after the show. Always check the re-export deadline Chinese customs writes on the white voucher.

Security and Surety Insurance

Because KCCI stands guarantee for you with foreign customs, it takes security from the applicant. The amount depends on the goods' value and the destination, and can be a cash deposit or a surety insurance bond. A bond keeps your cash free but costs a premium, and if a claim arises, the insurer pays first and then recovers the amount from you. Either way, the final cost is yours.

Returning the carnet doesn't immediately release the security. Foreign customs can still file claims for a period afterward, so the security stays in place for a while after return. Build that period into your cash planning.

5. What Happens When You Sell Samples On Site

This is the most common incident at trade shows. When a buyer wants to purchase display samples, it's hard to say no — and the staff are glad to have less to carry home. But goods entered on a carnet have their tax suspended on the condition that they leave again. Sell them inside China and that condition breaks, so the suspended duty and VAT become payable.

To handle it properly, you must formally declare the sold items for import with Chinese customs, pay the tax, and have that reflected on the white voucher. This is usually done through the show's official forwarder or a local customs agent. There isn't enough time to do it in a rush on the last afternoon of the show, so if on-site sales are possible, agree on the process and cost with the forwarder before the show starts.

Even if the sale price looks small, the numbers often end up negative. Add duty, 13% VAT, penalties and fees, and little is left of what you received. If a buyer wants samples, tell them you'll send them properly after the show and turn it into a sample order instead. We covered sample strategy separately in Episode 34.

6. When Samples Are Left Behind or Lost

Even without on-site sales, samples often fail to come back. They get left at a supplier's factory for reference, a box disappears during move-out, or a broken demo unit is thrown away locally. Whatever the reason, to customs these are goods that were not re-exported, and the handling is much the same.

Theft or loss also leaves you with the cost of the goods themselves, separate from tax. For high-value demo equipment, it's worth buying separate insurance that covers the show period. Cargo insurance for transit accidents is covered in Episode 57.

7. What's Easy to Miss on the Way Home

A carnet closes cleanly only if you get confirmation twice — when leaving China and when entering Korea. A surprising number of people rush through departure and leave without the Chinese re-export stamp. Without it, the goods are back in Korea but, on paper, still in China.

There are ways to prove re-export after the fact, such as presenting the re-entry stamp on the yellow voucher from Korean customs, or other Korean records, to Chinese customs. But it takes a long time and the result isn't guaranteed. The surest approach is to set aside time for the customs stamp before you leave.

Back in Korea, you need the re-entry confirmation on the yellow voucher to get duty-free treatment. Miss it and VAT can be charged on samples that were made in Korea in the first place, as if they were imports. Return the fully stamped carnet to KCCI and keep copies of the counterfoils. If a claim ever arrives, those copies are the only evidence you'll have.

8. Three Real Cases

These are anonymized versions of situations we see often in consultations. Amounts and timeframes are illustrative.

Case 1 — Kitchen Appliance Samples Sold On Site

This is the case from the start of the article. Twelve samples were sold to a buyer on the last day, and a year later a Chinese customs claim came in through KCCI. Once the tax and penalties were settled from the security, almost nothing was left of the sale proceeds. The company now puts a "display items not for sale (展品不出售)" sign on its booth and takes sample requests as sample orders.

Case 2 — Prototypes Left at a Factory

A household goods company exhibiting at the Yiwu fair left five prototypes for reference with a local factory it had met for OEM talks after the show. Because the items were on the carnet list, they were treated as not re-exported once the deadline passed. Had the company taken those units off the carnet list from the start and exported them normally, the cost would never have arisen.

Case 3 — The Missing Re-export Stamp

A company that hand-carried demo equipment to a show in Guangzhou was racing for its flight home and left without the Chinese re-export confirmation. Because it had the Korean re-entry stamp, it was able to prove re-export with that record — but the paperwork took months, and the security stayed tied up the whole time.

9. Common Mistakes

• Selling display samples on site without settling the tax
• Putting catalogs or promotional items on the carnet list
• Lumping together quantities by color or model and getting stuck at the customs check
• Checking only the carnet's validity and not the Chinese re-export deadline
• Leaving China without the re-export confirmation
• Not keeping copies of the counterfoils after returning the carnet

10. ATA Carnet Checklist

Before Issuance

• Confirmed with KCCI that this purpose (exhibition display) is accepted for carnets in China
• Removed giveaways, consumables and on-site sales inventory from the list
• Listed description, quantity, value, origin and serial numbers separately by color and model
• Chose the type of security (cash or surety bond) and calculated how long the money will be tied up

Departure and Show Period

• Got the yellow voucher exit stamp from Korean customs
• Got the white voucher temporary import stamp from Chinese customs and checked the re-export deadline
• Agreed with the show's official forwarder in advance on how to handle sold or remaining items
• Told booth staff that buyer requests to purchase samples will be turned into sample orders

After Returning

• Got the re-export stamp from Chinese customs
• Got the yellow voucher re-entry stamp from Korean customs
• Returned the carnet to KCCI and kept copies of the counterfoils

Conclusion - Bring Back What You Took, and You're Done

With an ATA Carnet, you can take trade show samples out tax-free and bring them back as they were. One booklet completes customs formalities in both countries, and you don't have to leave a deposit abroad. But if the premise — everything comes back — breaks, the suspended tax is claimed much later, with penalties on top.

Most incidents happen on site: selling samples to a buyer, leaving them at a factory, or missing a customs stamp on the way out. The surest prevention is deciding before departure what you'll bring back and what you'll leave, and taking anything you'll leave off the carnet list from the start.

If you're preparing for your next trade show, start by opening your sample list. Just checking that nothing on it is meant to stay behind, and that quantities are split accurately by color and model, prevents a large share of on-site problems.

StartMade supports you on the ground in China — organizing your trade show sample list, weighing a carnet against regular clearance, coordinating customs with local forwarders, and handling samples for factory meetings after the show. If you have a Chinese trade show coming up, we can start with your sample plan.