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OTC
OEKO-TEX Organic Cotton
Global · Tier 2 Trusted
Luomu (Finland) logo
Luomu (Finland)
Finland · Tier 2 Trusted
Korea Organic logo
Korea Organic
South Korea · Tier 1 Gold
What it meansLaunched April 2023 by the OEKO-TEX Association. A separate certificate from Standard 100 that combines the Standard 100 chemical-residue test with verified organic-cotton supply chain — addressing the long-standing confusion that Standard 100 alone is NOT an organic mark.Finland's national organic 'Sun Mark' (Aurinkomerkki). Operated by the Finnish Food Authority. In practice most Finnish organic packaging carries both Luomu and the EU Leaf — they certify to the same baseline.South Korea's national organic mark under MAFRA (Ministry of Agriculture, Food and Rural Affairs). Required on any food sold as 유기농 in Korea.
ScopeTextilesFoodFood
Established202319952001
InspectionAnnual on-site by OEKO-TEX-accredited institute (Hohenstein et al.)Annual on-site by Finnish Food AuthorityAnnual on-site by MAFRA-accredited certifier
Residue testingRequired (Standard 100 panel + GMO/pesticide screening)RequiredRequired
Guarantees
  • Two grades: 'Organic Cotton' (100% certified-organic cotton) and 'Organic Cotton Blended' (≥70% certified-organic cotton).
  • Full Standard 100 chemical residue test on the finished product.
  • Additional GMO test + pesticide residue test specific to organic farming.
  • Verified chain of custody from farm to finished product.
  • Annual re-certification with independent OEKO-TEX institute audits.
  • EU baseline organic (Finnish supply chains end-to-end).
  • Annual on-site inspection by the Finnish Food Authority.
  • ≥95% organic ingredients.
  • No synthetic pesticides, no GMOs.
  • Annual on-site inspection by a MAFRA-accredited certifier.
Does NOT
  • Doesn't certify the social/labour conditions across the supply chain in the way GOTS does (use OEKO-TEX STeP for that, or pair with GOTS).
  • Cotton-only — doesn't apply to other organic fibres (wool, hemp, linen).
  • The Sun Mark is awarded only to fully Finnish supply chains — imports use the EU Leaf alone.
  • Cosmetics and textiles are covered under separate Korean schemes, not this mark.

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