Underwear Supplier for Seoul Buyers: OEM Sourcing from China

Korea is a short hop from Xiamen but a demanding market to sell into, because the labelling requirement is in Korean, the children’s wear safety regime is one of the strictest in Asia, and the buying culture sits between the Japanese and the European models. Unitex Underwear (Xiamen Unitex Trade Co., Ltd.) is a China-based underwear supplier working through long-term BSCI-audited partner factories in the Fujian knitwear corridor — men’s, women’s and kids’ knitted underwear, MOQ 2,000 pcs per style and colour, FOB Xiamen.

The Seoul Buyer Base, and What It Asks For

Korean underwear retail is concentrated. A small number of large apparel groups, department-store operators, home-shopping channels and a fast-moving online sector account for most of the volume, supported by general trading companies that handle import programmes for several of them. The buyer who writes a brief from Seoul is usually an experienced importer with an established compliance team, and the questions come in a familiar order: labelling, safety certification, delivery window, and then price.

Korean buyers also work to a faster trend cycle than European ones. The market responds quickly to colour and fabric trends, and a programme that cannot turn a new colourway in a reasonable window loses its place in the range. That favours the reorder model: a first order on two or three styles, then a series of smaller, faster top-ups as colour and print options rotate. Because the sea leg from Xiamen to Busan is short and the air link is direct, that model is workable here in a way it is not for a Brazilian or Canadian buyer.

A third characteristic is the emphasis on presentation. Korean retail is visually driven and packaging standards are high: individual polybagging, size and colour labelling that scans correctly, and cartons that arrive presentable. Underwear packed for a European wholesale account may not meet what a Korean retail account expects, so packing specification belongs in the brief rather than in a follow-up email.

Xiamen to Seoul: Short Sea, Short Air, Busan and Incheon

Container services from Xiamen into Busan run in the region of four to seven days port to port, with Busan being one of the largest container ports in the world and a major transhipment hub for the region. Door to door into the Seoul metropolitan area — via Busan with an inland leg, or via the port of Incheon which sits much closer to the capital — allow roughly ten to fifteen days. Incheon is often the better choice for Seoul delivery simply because of distance; Busan wins when the service frequency or the rate makes it the cheaper option, so it is worth comparing the two rather than defaulting to either.

Air freight is direct and short. Xiamen to Incheon is around two hours of flying time with several daily services, so air cargo lands in one to two days airport to airport with door-to-door delivery inside three or four days. For a colourway top-up or a sample set that has to be in a meeting, it is a realistic tool rather than an emergency measure, and the cost gap to sea freight is smaller on a short route than on a transpacific one.

One documentation note worth building in: Korean import clearance requires the importer’s registration with Korean customs and, for goods subject to the safety regime, the relevant certification reference. A Korean-established importer or a customs representative is needed, so as with Japan the local entity question should be settled before the first order rather than at the port.

Korean Labelling, KC Safety Confirmation, and the Duty Position

Textile products sold in Korea must carry a label in Korean. The content follows the quality labelling framework for textiles: the fibre composition by generic name and percentage, the size, the care instructions in the standard symbol form, the manufacturer or importer, and the country of origin. The requirement that matters most in practice is that the information be in Korean — an English-only label does not satisfy it — and that the label be attached to the product. Korean authorities also enforce the country-of-origin marking separately, and origin labelling for imported goods is treated as a consumer protection matter rather than only a customs one.

Children’s and infants’ clothing attracts an additional regime. Apparel for young children requires safety confirmation under the Korean certification system, generally referred to as KC confirmation, which is issued against a testing regime rather than self-declared. The tests typically cover formaldehyde content, the presence of restricted azo dyes from the banned list, pH value, and colour fastness, with thresholds set at levels comparable to or stricter than the European equivalents. The practical consequences for a programme are two. First, the testing has to be done on the actual fabric and the actual colourways — a general material certificate is not a substitute — and second, it has to be done before shipment, because the certificate is part of the import file. If your Korean range includes children’s sizes, plan several weeks for this rather than assuming it fits inside the normal sampling window.

On cost, Korea applies an Most-Favoured-Nation rate for knitted apparel that sits in the region of thirteen percent, with value-added tax at ten percent on the duty-paid value. Two preferential routes exist and both are worth checking for your product: the China–Korea free trade agreement and the Regional Comprehensive Economic Partnership, which allow reduced or staged rates against a valid certificate of origin. Which one applies, and at what rate for your specific subheading, depends on the product and the year of the tariff staging, so confirm it with your Korean broker against the current schedule. It is a genuine cost lever — the gap between the general rate and a preferential rate is large enough to change which programme is viable.

What We Do, and What We Do Not Do

Unitex is a sourcing and supply-chain management company and owns no production facilities. We develop styles, source fabric and trims, place orders with long-term partner factories in the Xiamen–Quanzhou–Jinjiang corridor, and run production follow-up, AQL 2.5 inline and final inspection and export documentation. Compliance evidence is amfori BSCI at the partner sites and OEKO-TEX Standard 100 for the materials on your order, with certificate numbers shared at quotation.

For a Korean programme we can offer the material and production-side evidence that supports KC testing — fabric and colourway samples for the laboratory, and the mill documentation behind them — but the safety confirmation itself is issued against the importer’s application, and the Korean label has to be applied with the importer’s details. What we do is sew the Korean-language label your importer’s artwork requires at production, so the goods arrive ready rather than needing local re-labelling. We are not a Korean certification body, not your importer of record, and we do not claim any certification we do not hold.

Sourcing Specifications at a Glance

Company	Xiamen Unitex Trade Co., Ltd. (厦门甲冠麒贸易有限公司) — sourcing and supply-chain management company, incorporated 2013; in the underwear trade since 2009
Business model	Sourcing and trading company — we neither own nor operate factories; every order runs on the long-term partner manufacturing lines in the Fujian knitwear corridor that best fit the fabric, quantity and delivery date
Location	Xiamen, Fujian Province, China — Jimei District, Xinglinwan Business Operation Center
Production base	Long-term partner factories across the Xiamen–Quanzhou–Jinjiang knitwear corridor; our own liaison office inside the Jinjiang factory district since 2013
Categories	Men’s / women’s / kids’ knitted underwear, plus size to 5XL, thermal and baselayers, pajamas and sleepwear, sport bras
MOQ	2,000 pcs per style and colour (trial orders from 1,000 pcs on selected styles)
Sampling	7–10 days for counter samples; 12–18 days for fully custom development
Bulk lead	45–60 days after pre-production sample approval
Compliance	BSCI-audited partner factories; OEKO-TEX® Standard 100 certified materials; certificate numbers for the production sites on your order shared at quotation
QC	AQL 2.5 inline and final inspection on every order; shrinkage and spirality tested before bulk cutting; third-party inspection (SGS, Intertek, TÜV) welcome
Port & terms	Xiamen Port — FOB Xiamen standard (EXW Xiamen for Russia/CIS); CIF, CNF or DDP on request
Payment	30% T/T deposit, 70% against copy of B/L; L/C at sight for larger programmes. On some programmes the balance — or the full value — is collected before shipment, where the payment route, the trade term (for example EXW) or an order value too small to carry a post-shipment balance puts the risk on the supplier rather than on the buyer’s market; the sequence that applies is stated on the quotation.

How to Start a Programme from Seoul

1. Send your design brief, spec sheet or reference sample — we review and respond within 48 hours
2. Receive fabric swatches, waistband options and a quotation within 3–5 business days
3. Approve counter samples (7–10 days) or full custom development samples (12–18 days)
4. Pre-production sample locks the measurement chart, then bulk runs 45–60 days with AQL 2.5 inline and final inspection
5. Shipment from Xiamen Port on your chosen term, with export documentation handled by our team

Contact us for a free quotation →

Prefer a third-party reference before you write? Our company profile and product showroom are public on Made-in-China.com, and our export shipping records are independently listed on Panjiva. Contact: [email protected] · WhatsApp +86 186 5081 3853.

Other Markets We Cover

This guide is one of a series written for buyers in different markets. The others cover the markets below — each page sets out what that market’s import rules, duty and shipping routes mean for an underwear programme sourced from China.

Europe — London · Paris · Barcelona · Madrid · Rome · Milan · Frankfurt · Hamburg · Amsterdam · Warsaw · Stockholm · Athens · Moscow · St Petersburg · Italy · the Netherlands · the Nordics

The Americas — New York · Los Angeles · Miami · Toronto · Mexico City · Santiago de Chile · Lima · São Paulo · Buenos Aires · Mexico · Canada

Asia-Pacific, Türkiye, the Gulf and Africa — Tokyo · Singapore · Sydney · Melbourne · Auckland · Dubai · Istanbul · Johannesburg · the UAE

If you are still weighing up whether to buy through a sourcing company at all, start with the China underwear supplier hub, which sets out how a sourcing company differs from a single factory and what that changes for your programme. Buyers already based in China — Shenzhen, Shanghai, Guangzhou, Beijing, Hong Kong, Ningbo, Yiwu or Xiamen — are covered by a separate set of city guides linked from the hub.

Last updated: 2026-10-16 · Xiamen Unitex Trade Co., Ltd. — OEM & ODM underwear sourcing partner

Unitex Underwear (Xiamen Unitex Trade Co., Ltd.) — OEM/ODM underwear sourcing and supply-chain partner in Xiamen, China; in the trade since 2009, incorporated in 2013. Based in the Xiamen–Quanzhou–Jinjiang knitwear cluster, Fujian Province, south-east China.