GOTS Certified Socks Factory in China
FOCS (Shanghai Fashionorganic Co., Ltd) is a GOTS certified socks factory in China ā we hold the licence ourselves, covering knitting, dyeing and sewing under scope. That means your organic cotton socks are produced under full GOTS chain-of-custody from certified yarn through to the finished, labelled pair, and every order ships with a transaction certificate (TC) issued against our licence number.
Many "GOTS suppliers" in China are trading companies that buy certified goods from someone else's licence. When you place an order with them, your traceability stops at the trader ā and your own GOTS scope audit may reject the paperwork. When you buy from a factory that holds the licence, the certification body audits our mill directly, transaction certificates reference our production runs, and your chain of custody is airtight from organic farm to finished sock.
FOCS has been exporting certified organic socks to European and North American brands for two decades. Our GOTS programme covers organic cotton crew and rib socks, organic baby socks (OEKO-TEX Class I, the strictest baby-grade standard), organic wool socks, organic tights and GOTS underwear ā so you can consolidate a full certified assortment with one audit, one QC standard and one shipment.
Beyond GOTS, our factory runs on nine international certifications including RWS (responsible wool), GRS (recycled content), OEKO-TEX 100, BSCI (social compliance), Higg Index and ISO 14001. Roughly 28% of our production energy comes from rooftop solar ā a detail your sustainability report can cite with confidence.
Knitting, dyeing and sewing under scope ā TC issued directly to your order.
Certified organic yarn lots, separated production lines, documented batches.
Rooftop solar covers about a quarter of factory energy demand.




Deep-dive guides written by our sourcing team ā the same checklists we hand to brand buyers before a first order.