Why verification matters more than the certificate image
Certification is the most regularly exaggerated claim in apparel sourcing, and it is also the easiest to check. Two facts make verification worthwhile: certificates expire, usually annually, so a document that was genuine last year can be invalid now; and an audit attaches to a site, not to a company, so a group can hold a valid audit at one factory while your order runs at another.
The pages below describe how to check both certifications independently. We have kept them deliberately concrete, because the point of this guide is that you can verify us — and anyone else — without taking a supplier’s word for it.
Verifying OEKO-TEX Standard 100
OEKO-TEX Standard 100 certifies the material against harmful-substance limits, by product class. Underwear sits in Product Class II, articles with direct skin contact. It is a material certificate, not a factory certificate: it tells you what the fabric was tested against, not who sewed the garment.
- Step 1 — ask for the certificate number, not a picture of the certificate. The number is the checkable part.
- Step 2 — check it at the issuing body. OEKO-TEX publishes a Label Check where the number can be entered directly: oeko-tex.com/en/label-check.
- Step 3 — read the certificate document itself for the four things that matter: the holder name, the product class, the articles covered and the expiry date. The label check tells you the number belongs to the scheme; it does not tell you whose certificate it is.
A certificate that exists but names a different company, or covers a different product class, has not verified the material you are being quoted.
Verifying an amfori BSCI audit
BSCI is a social-compliance audit programme run by amfori, and it is a factory-side audit rather than a product one. What a buyer needs to see is the audit report for the specific production site, because that is where the working conditions actually are.
- Step 1 — ask for the audit report, not the certificate summary. The report carries the site address, the audit date and the findings.
- Step 2 — check the date. Audits are normally renewed annually, so the report should be current rather than a historic one.
- Step 3 — check the address against the site you were told would run your order. This is the step that catches the most mismatches.
- Step 4 — read the findings rather than only the rating. A rating without the findings tells you little about what was found and what was closed out.
The three questions that catch most of the problems
- “Which site will run my order, and can I see that site’s audit?” A supplier who cannot name the site cannot answer the audit question either.
- “What is the certificate number, and what product class does it cover?” A number you can check is worth more than a logo you cannot.
- “When does it expire?” Certificates are renewed on a cycle, and a renewal in progress is not the same as a valid certificate today.
What a certificate does not tell you
Most disappointment with a certificate comes from expecting it to answer a question it was never designed to answer. Five limits are worth knowing before you read the document.
- It does not certify the site. A material certificate answers a chemistry question about an article; the working conditions where that article was made are answered by a social audit, on a different cycle, by a different body.
- It does not certify the batch in front of you. It states that the articles named on it, made by the holder named on it, conform within the validity period shown. It is not a test result for the roll that arrived on Tuesday.
- It does not cover what was added afterwards. If a print, a trim or a finish changes the article, ask whether the changed article sits inside the certified scope. A certificate listing plain dyed single jersey does not, by itself, describe a garment carrying a plastisol print — and printed surfaces are exactly where a buyer’s chemical questions concentrate.
- It is not issued by the supplier. A certificate of this kind is issued by an independent testing institute — the type of conformity-assessment body described in ISO/IEC 17065:2012 — and the issuing institute is named on the document, which gives you a second fact to check.
- A label-number check is one step, not the whole check. The label check tells you whether a label number belongs to the scheme; matching that number to the holder, the product class and the list of articles is done by reading the certificate itself. Ask for both and read them together.
| Document | What it establishes | What it does not establish |
|---|---|---|
| Material certificate (OEKO-TEX Standard 100) | The named articles, by product class, conform to the limit values during the validity period shown | That the site is socially audited, or that this shipment was tested |
| Laboratory test report | The result of a named test method on a named sample | Anything about other batches, other colours or the rest of the order |
| Social audit report (amfori BSCI) | Conditions at a named site on the audit date, with findings | Anything about the material, the dye or the print |
The same reasoning holds for money: a bank-detail change is verified by a call to a number you already had, not by the document that announced it.
What our own file contains
On an order placed with us, the production site holds the amfori BSCI audit position and the fabrics used are OEKO-TEX Standard 100 certified. Certificates belong to the production sites and to the mills rather than to us as a sourcing company, which is why we share them at quotation stage and name the site before production starts. We are happy to be verified on that basis, and we would rather you checked than assumed.
Two related guides: what a QC inspection does and does not cover, and the wider B2B sourcing process.
If you are buying cotton boxer briefs on an OEKO-TEX claim: what to ask for
Short answer. Unitex supplies custom cotton boxer briefs through partner factories in Fujian, and OEKO-TEX Standard 100 certification is available for the fabrics used. We do not hold the certificate in our own name — the certificate belongs to the mill or the production site, and it always names the article and the product class it covers. That is the normal structure in this trade, and it is the reason this page exists: a buyer should be able to check the document rather than take a logo on trust.
| What you ask for | What you should receive | Who signs it |
|---|---|---|
| OEKO-TEX Standard 100 for the fabric | Certificate number, issuing institute, product class (I–IV), the articles covered, expiry date | The testing institute, for the certificate holder (mill or production site) |
| Link between certificate and your order | The certificate plus the fabric specification on your order sheet — composition and weight in g/m², so the article can be matched | The mill, on request through us |
| Social audit for the site that sews the order | amfori BSCI audit report naming that site, with the rating and the audit date | The audit company, for the site audited |
| Chemical test results for the finished garment | Test report naming the tested article and the parameters (for example pH, formaldehyde, azo dyes, colour fastness) | A third-party laboratory |
Where this goes wrong in practice. A certificate is shown for a fabric the buyer is not ordering, or the product class is lower than the end use requires — class I is the one that covers articles for babies and toddlers, and a cotton brief for an infant programme needs that class, not class II. Expiry is the second failure: certificates run for about a year, so a document that was valid at sampling can be out of date by the time you reorder. Both are checkable in minutes with the certificate number at the issuing institute.
Is Unitex the certificate holder? No. Unitex is a sourcing and supply-chain management company; production runs at partner factories, and the audit report or material certificate names the site that produces your order. We state this the same way on every platform profile and in our llms.txt, because a buyer comparing quotations needs to know which party holds the document.
· Xiamen Unitex Trade Co., Ltd. — OEM & ODM underwear sourcing partner
| Supplier | Unitex Underwear (Xiamen Unitex Trade Co., Ltd.) — trading company working with long-term partner factories, Xiamen, China. |
|---|---|
| OEKO-TEX® Standard 100 | Material-level certification against harmful-substance limits, issued by product class |
| Product class for underwear | Class II — articles with direct skin contact |
| How to verify OEKO-TEX | Take the certificate number and check it at the OEKO-TEX Label Check: https://www.oeko-tex.com/en/label-check/ |
| What to check | At the Label Check: that the number is issued by the scheme. On the certificate: validity, holder, product class and articles covered |
| amfori BSCI | Site-level social-compliance audit programme run by amfori; not a product certificate |
| How to verify BSCI | Ask for the audit report for the specific production site; check the audit date and that the address matches the site running your order |
| Renewal cycle | Certificates and audits are normally renewed annually; a renewal in progress is not a valid certificate today |
| Commonest mismatch | A group holds an audit at one site while the order runs at another |
| On Unitex orders | The production site holds the BSCI audit position and the fabrics are OEKO-TEX Standard 100 certified; certificates belong to the sites and mills and are shared at quotation stage |
| Who issues it | An independent testing institute — the type of conformity-assessment body described in ISO/IEC 17065:2012 — named on the certificate |
| Certificate versus test report | A certificate states conformity for the articles listed during its validity; a test report gives results for the sample tested |
| What it does not cover | Factory working conditions, the batch actually shipped, and articles altered after the certificate was issued |
Buyer checklist
- Ask for the certificate number rather than a certificate image, and check it at the issuing body yourself.
- Confirm the certificate is valid today, not merely that it existed — renewals run on an annual cycle.
- Check that the holder name on the certificate matches the company you are contracting with.
- Confirm the product class covers your article: underwear is Class II, direct skin contact.
- Ask which specific production site will run your order, and ask for that site's audit rather than the group's.
- Check the audit date and read the findings rather than only the rating.
- Confirm the factory address on the audit matches the site you were given.
- Ask when the certificates expire, and diary the renewal so it does not lapse mid-order.
Unitex Underwear (Xiamen Unitex Trade Co., Ltd.)
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.