24hQuotation response on every brief
Editorial policy
How these guides are written, checked and corrected.
Sixty-five buyer guides, a glossary and two reference tables — written by the people who run the sourcing work, not by a content agency. This page says how, and what to do when we get something wrong.
3–4 daysStock samples · custom first sample in 7
MOQ 100Stock styles · custom 300–500 by style
AQL 2.5Final inspection by our own QC team
~97%Bulk lots passing final inspection first time · 2024–2026
~98%On-time shipment · about 350 bulk orders, 2024–2026
48%New customers reordering within 12 months
106Countries and regions with buyers · since 2019
2,000+Orders since 2019 · our order records
Primary sourcesCited on regulation and tariff pages
As-of datesOn anything that expires
CorrectionsBy email, acknowledged
What buyers need to know
What stands behind the numbers on this site.
Sixty-five buyer guides, a glossary and two reference tables — written by the people who run the sourcing work, not by a content agency. This page says how, and what to do when we get something wrong.
Who writes this
The guides are written by the SEAMDANCE development team in Xiamen — the same people who read tech packs, sit through lab-dip approvals and handle inspection reports — and signed by Amber Chan, Export Manager, who is responsible for quality control and answers for what they say. There is no separate content department and no outside agency. We do not publish under invented expert names: where a guide reflects team practice rather than an individual’s credential, it says so.
What we cite, and what we do not
Regulation, tariff, testing-standard and compliance guides carry a Sources section linking the primary text — the eCFR, EUR-Lex, ECHA, OEHHA, the USITC tariff, the standards bodies. Guides that describe our own working practice do not carry citations, because the source is the practice itself; those state plainly that they are experience rather than published standard.
Read the guide libraryDates, and why they matter here
Tariff rates, restricted-substance limits and compliance deadlines all expire. Pages that depend on them carry the date the information was checked, and point at the official lookup rather than freezing a number in place. If a page has no as-of date, it is because nothing on it is time-sensitive — not because we forgot.
Numbers about our own business
Our operating terms are: in activewear since 2018 (the current company was registered in 2026), MOQ from 100 pieces on stock styles and 300–500 per style for custom development, quotations within 24 hours, stock samples in 3–4 days, custom first samples in about 7 days, and final inspection to AQL 2.5. The own-factory equipment and development figures on our About page were provided by the owner on 2026-09-30; the fastest sample case does not replace the usual sample times. Historical delivery, program and country figures are our own operating records, not independently audited totals. Industry figures are identified separately.
Own-factory facts and scope 05Certifications are never ours
OEKO-TEX, GOTS, GRS, BSCI and ISO certificates belong to the mill or factory that holds them, for a specific scope and a specific validity period. No certification is claimed for SEAMDANCE or its own factory. Before an order is placed we check the holder, the scope and the expiry against what that order actually requires.
How partners are verifiedWhen we are wrong
Sourcing information goes stale and writers make mistakes. If something here is wrong, out of date, or reads as more certain than the evidence supports, write to [email protected] with the page and the problem. Corrections to factual errors are made to the page itself, not buried in a footnote, and we will tell you what changed.
A clear approval path
From first direction to shipment release.
Brief review
Product category, market, quantity, target price and launch timing — quotation back within 24 hours.
Material + construction
Fabric, support level, seamless program or cut-and-sew route.
Sample + fit
Prototype, measurements, workmanship and movement review — stock samples in 3–4 days, custom first samples in 7.
Pre-production approval
Color, logo, labels, packaging and sealed production standard.
Bulk + quality control
In-line checks, AQL 2.5 final inspection, packing and shipment release.
Transparent operating model
厦门西丹思供应链管理有限公司 (Xiamen Seamdance Supply Chain Management Co., Ltd.)
Xiamen · Fujian · China
Since 2018In activewear since 2018 · OEM contract manufacturing before that · current company registered 2026
Gym wear, activewear, yoga wear and sportswear manufacturer with its own factory and one-stop service
Own factory in Xiamen plus one-stop service for the whole range
Company profile Gym wear, activewear, yoga wear and sportswear manufacturer with its own factory and one-stop service
Own factory in Xiamen plus one-stop service for the whole range
Build your next collection