Selling on Korean marketplaces as a foreign seller: Coupang, Naver and the rest

Foreign brands meet Korean marketplaces in one of two moods. Some discover that Korean customers are already buying their products through resellers and want to take the channel back. Others see Korean demand for their category — European homeware, American supplements, Japanese stationery, Australian skincare — and want a first test. Both find a market concentrated in a few platforms, with expectations set by Coupang’s overnight “Rocket” delivery and Naver’s search-led shopping, and a legal framework built around the Act on Consumer Protection in Electronic Commerce — the E-Commerce Act — and Korea’s product safety laws.

This guide covers the marketplaces, the two entry models, the seller’s legal duties, product certification and labelling, returns and warranties, and the newer rules on platforms and foreign sellers. Our guide to e-commerce set-up covers payment, VAT and company structure in more depth; Korean consumer protection law covers the wider consumer rules.

The map of Korean marketplaces

Simplified; programmes change often.

Two features of the market matter more than any single platform. Delivery speed is a competitive weapon: Coupang’s Rocket products arrive overnight and rank accordingly, which pushes serious sellers towards stock in Korea. And search lives on platforms: Korean consumers search Naver and Coupang, not Google, so the product page in Korean is the shop window.

Two entry models

Cross-border

The foreign seller lists on a global programme or its own Korean-language site and ships each order from abroad. The consumer is the importer: each parcel clears Korean customs under the personal-use procedure with the buyer’s personal customs clearance code (개인통관고유부호, gaein tonggwan goyu buho). Personal imports up to USD 150 per consignment — USD 200 for goods shipped from the United States — are generally free of duty and import VAT and can clear on a simple list; above that, duty and VAT are due on the whole value. Medicines, health supplements, food, alcohol, functional cosmetics and quarantine goods need a full declaration and have tighter limits; see customs duties.

Cross-border is quick to start and light on Korean law, but it has ceilings: slower delivery, harder returns, and categories that cannot practically go this way. The 2024 attempt to ban personal imports of 80 categories without KC certification was withdrawn within days, but the authorities test cross-border products and publish lists of hazardous ones; platforms act on them.

Local

The foreign brand, or its Korean partner, sets up a Korean company, imports in bulk, holds stock in Korea and sells as a Korean merchant. It files a mail-order business report (통신판매업 신고, tongsin panmae-eop singo) with the local district office under Article 12 of the E-Commerce Act, registers for VAT, opens a Korean bank account and signs the marketplace’s seller terms. Imports clear customs commercially — with KC certification, Korean labels and any product-specific approvals in place before they arrive. The reward is Korean delivery speeds, Korean returns and access to every platform. See importing through your own Korean company.

What a seller must show

Under Article 13 of the E-Commerce Act every seller identifies itself on the listing — name, representative, address, telephone, email, business registration number and mail-order report number — and states the terms: price, delivery, withdrawal and refund conditions, and how complaints are handled. The KFTC’s Notice on the Provision of Product Information (상품정보제공 고시, sangpum jeongbo jegong gosi) adds category-specific fields that every listing must complete in Korean: for clothing, the material, colour, size, manufacturer, country of manufacture, washing instructions and quality-assurance standard; for electronics, the KC certification number, rated voltage, power consumption, release date, manufacturer and after-sales contact; for food and cosmetics, the fields their own laws require.

The marketplace, as mail-order intermediary (통신판매중개자, tongsin panmae junggaeja), must tell consumers that it is not the seller and show the seller’s details, and it shares liability if it fails to; that is why platforms check documents before approving a seller. Country of origin must be marked under the Foreign Trade Act and, for agricultural and fishery products, the origin labelling law; misleading origin is a customs offence as well as a consumer one.

Korean language and labels

Korean consumer law expects Korean. The listing, the product information notice, the terms, and the label on the product itself must be in Korean wherever a product law requires labelling — electrical goods, household chemicals, children’s products, cosmetics, food, supplements, textiles. For imported goods a Korean sticker on the original packaging is the usual solution, applied before sale, firmly attached and not hiding the original information. Instructions and warnings for electrical goods and toys must also be in Korean.

Machine translation is not enough for the product information notice or safety warnings. A wrong voltage, a missing warning or an untranslated age grade is a regulatory finding, not a typo.

KC certification and product safety

Korea’s safety mark is KC (국가통합인증마크, gukga tonghap injeung mark). Under the Electrical Appliances and Consumer Products Safety Control Act, electrical appliances and household products are divided into three tiers: safety certification (안전인증, anjeon injeung) for higher-risk items, with factory inspection and product testing; safety confirmation (안전확인, anjeon hwagin) by test report; and supplier’s declaration of conformity (공급자적합성확인, gonggeupja jeokhapseong hwagin) for low-risk items. Children’s products — toys, children’s clothing, car seats, prams — follow the Special Act on the Safety of Children’s Products with the same three tiers. Devices that transmit radio waves — Bluetooth speakers, wireless chargers, smart devices — need radio conformity assessment under the Radio Waves Act.

The KC mark and the certificate number must appear on the product and, for online sales, on the listing. Marketplaces check, and the Korea Agency for Technology and Standards runs online monitoring with recall and sale-stop orders. Selling a certifiable product without certification is a criminal offence for the seller. Foreign certificates — CE, UL — do not count, though test reports from recognised laboratories can shorten the Korean process. Budget the time: weeks for confirmation, longer for certification with a factory inspection.

Fulfilment and customer service

For a local seller, logistics decide rankings. Coupang’s Rocket Growth (로켓그로스, roket geuroseu) takes the seller’s stock into Coupang warehouses and delivers it with Rocket badges, overnight; the seller remains the legal seller and the importer of record, and Coupang charges storage and fulfilment fees. Naver and the other platforms work with third-party logistics providers that offer the same next-day promise from warehouses around Seoul and Incheon. The choice affects more than speed: whoever holds the stock handles returns, and returned goods must be inspected and either restocked, refurbished or disposed of under the seller’s instructions.

Customer service is the second half of fulfilment. Korean consumers expect answers in Korean, on the platform’s messaging channel, within a working day, and platforms measure seller response times. A foreign brand without Korean staff usually outsources this to its Korean distributor, its fulfilment partner or a specialist call centre — with scripts that reflect Korean return and warranty rules rather than the brand’s home-market policy. Complaints that escalate go to the platform, then to the Korea Consumer Agency’s 1372 line; both are cheaper to prevent than to answer.

Promotions, reviews and advertising

Marketplaces run on promotions — coupons, time sales, Black Friday and the Korean shopping festivals — and the price shown must be the price paid: a “discount” from a reference price that was never charged, or a price that grows with mandatory options at checkout, breaches the Fair Labelling and Advertising Act and the dark-pattern rules. Reviews matter more in Korea than almost anywhere, and the KFTC treats paid or incentivised reviews that are not disclosed as deceptive advertising; sellers have been sanctioned for review manipulation. Influencer campaigns must disclose payment clearly in Korean. Marketplace advertising — sponsored listings — is fine, provided it is labelled as such by the platform.

Returns and refunds

Online buyers can withdraw within 7 days of receiving the goods under Article 17 of the E-Commerce Act, and within 3 months of delivery — 30 days from discovery — where the goods differ from the listing or were not supplied as promised. The right is lost if the goods are destroyed or damaged by the consumer, if their value has fallen sharply through use, or for copyable goods once the packaging is opened — provided the seller disclosed those limits clearly in advance. Under Article 18 the seller refunds within 3 business days of receiving the returned goods, with interest for delay.

Return shipping is the consumer’s cost when the return is a change of mind, and the seller’s when the product is defective or misdescribed; the seller may not charge a penalty for withdrawal. Marketplaces build these rules into their return flows, and Korean consumers use them. Cross-border sellers need a practical answer: a Korean returns address or consolidator, or a refund-without-return policy for low-value items.

Warranties and after-sales service

Korea has no single statutory warranty period. Instead, the Consumer Dispute Resolution Criteria (소비자분쟁해결기준, sobija bunjaeng haegyeol gijun), issued under Article 16 of the Framework Act on Consumers, set the standard the Korea Consumer Agency applies in disputes: for most consumer goods and appliances a one-year quality warranty; a replacement or refund for a functional defect within 10 days of purchase; free repair within the warranty; replacement after repeated failures of the same part; and minimum periods for keeping spare parts. The criteria are not statutes, but they decide most cases, and marketplaces and courts use them as the benchmark.

For foreign brands the practical question is who repairs. A product sold as an official Korean product needs a Korean after-sales contact and either a repair partner or a replace-and-refund policy. Products sold cross-border can carry the brand’s international warranty, but the listing must say clearly what applies in Korea; promising a warranty that cannot be used locally is misleading advertising under the Fair Labelling and Advertising Act.

In Korea the warranty is what the Consumer Agency says it is. Write yours to match, and say who fixes it in Seoul.

Voixa Korea

Platform rules, settlement and the new agent duty

Marketplaces are regulated as well as their sellers. Since February 2025 the E-Commerce Act bans six dark patterns — hidden renewals, drip pricing, pre-selected options, false hierarchies, obstruction of cancellation and repeated interference — which affects how sellers present bundles, options and prices; see our guide to subscriptions and dark patterns. After the 2024 collapse of the TMON and WeMakePrice marketplaces, which left thousands of sellers unpaid, the KFTC proposed binding settlement deadlines for online intermediaries — payment within 20 days of purchase confirmation — and separate safekeeping of sales proceeds; check the current state of the Large-Scale Retail Business Act and your platform’s settlement terms, and do not let receivables build up on a platform you do not trust.

From 21 January 2027 foreign online sellers and platform intermediaries without a Korean address must appoint a Korean domestic agent (국내대리인, gungnae daeriin) if they had KRW 1 trillion of revenue in the previous year, averaged a million Korean visitors a month, or are asked for information by the KFTC after consumer harm. A Korean subsidiary must act as the agent if one exists. The agent handles complaints, disputes and KFTC requests, and its details appear on the first screen of the store.

Brand protection on platforms

Parallel importers and resellers are lawful in Korea when they sell genuine goods; counterfeits are not. Register the trademark in Korea first — Korea is first-to-file (선출원주의, seonchurwonjuui) — and then use each marketplace’s rights-owner programme to take down infringing listings; see trademark registration. Brands that want to control price and presentation do it through an official store, authorised-reseller agreements and product-information differences, not through bans on resale, which Korean competition law treats with suspicion.

Tax and money in brief

A Korean company selling on marketplaces charges 10% VAT, issues electronic receipts through the platform and pays Korean corporate tax on its profit. Marketplaces deduct their commission and pay out on their own settlement cycle. A cross-border seller with no Korean presence generally does not register for Korean VAT on goods — the consumer pays import VAT above the threshold — but digital services sold to consumers are different; see digital services. Transfer pricing between the foreign brand and its Korean selling company must be at arm’s length. Platform fees are deductible costs for the Korean company, and marketplace settlement reports are the main evidence the tax office will ask for; keep them reconciled to sales and VAT returns every quarter, because mismatches between platform data and filed returns are among the first things the National Tax Service checks.

A worked example

A Danish maker of small kitchen appliances sees Korean customers buying its kettles through resellers at twice the European price. It forms a Seoul company, files the mail-order report and obtains KC safety certification for the kettle — the factory inspection takes six weeks — and radio conformity for its Bluetooth scale. Stock goes into Coupang’s Rocket Growth warehouses and a Naver Smart Store opens alongside.

Listings carry the KC numbers, Korean product information, a one-year warranty with a Seoul repair partner and a 7-day return policy. The trademark, filed a year earlier, lets the company remove copies. Resellers of genuine imports remain, but the official store wins on delivery speed and warranty — and on price, because the brand now sets it.

Mistakes we see

1. Listing electrical or children’s products without KC, relying on CE or UL.
2. Machine-translated product information with wrong specifications or missing warnings.
3. No Korean returns address, turning every return into an international shipment.
4. Warranties that only work abroad, presented as if they apply in Korea.
5. Charging restocking fees or refusing change-of-mind returns within 7 days.
6. Letting platform receivables accumulate without checking settlement terms.
7. Trademark filed after the first reseller’s.

Korean terms you will meet

Questions readers ask

About the author

Alexander Baranov

Founder of the BCA Group · cross-border corporate and tax adviser since 2008

Alexander advises foreign founders and groups on company formation, tax structuring and corporate law in more than 40 jurisdictions across Europe, the Gulf, Asia and Latin America. He is the author of nine books on international business and tax and writes regularly for professional finance and tax journals. He works in English, German, Spanish and Russian.

This guide is based on the Korean statutes cited in the text and on our own filings. It is reviewed when the law or official rates change.

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