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	Tún (Iceland) Iceland · Tier 1 Gold	Rainforest Alliance Global · Tier 3 Specialty	Korea Organic South Korea · Tier 1 Gold	Bioland Germany · Tier 2 Trusted
What it means	Vottunarstofan Tún is Iceland's only accredited organic certifier. Accredited by MAST (Matvælastofnun) under the EU 2018/848-equivalent Icelandic standard, so a Tún-certified product is also recognised as EU-organic.	Sustainable-agriculture certification (post-2020 merged standard with UTZ). Covers environmental, social, and economic criteria. NOT an organic mark.	South Korea's national organic mark under MAFRA (Ministry of Agriculture, Food and Rural Affairs). Required on any food sold as 유기농 in Korea.	Germany's largest organic farmers' association. Bioland-certified farms operate to a stricter private standard than the EU baseline.
Scope	Food	Food	Food	Food
Established	1994	1987	2001	1971
Inspection	Annual on-site, MAST-accredited	Annual third-party audit (RA-accredited)	Annual on-site by MAFRA-accredited certifier	Annual on-site by Bioland-accredited inspectors
Residue testing	Required for at-risk operations	Risk-based	Required	Required
Guarantees	≥95% organic ingredients per EU rules. No synthetic pesticides, no GMOs. Annual on-site inspection. Animal welfare standards (outdoor / pasture access, geothermally-warmed greenhouse compatibility for vegetables).	Reduced (not eliminated) synthetic pesticide use, with bans on the most hazardous classes. Forest conservation requirements (no deforestation after the cut-off date). Worker welfare and community development requirements. Annual third-party audit.	≥95% organic ingredients. No synthetic pesticides, no GMOs. Annual on-site inspection by a MAFRA-accredited certifier.	Whole-farm conversion (no parallel conventional production). Lower permitted nitrogen inputs than EU baseline. Animal welfare standards stricter than EU baseline. Annual on-site inspection.
Does NOT	There aren't many Tún-certified operations (~120–160) — coverage in the Icelandic market is narrower than in the EU mainland.	Allows synthetic pesticides — does NOT meet any organic standard. Often confused with organic but it's a different programme.	Cosmetics and textiles are covered under separate Korean schemes, not this mark.	Like Naturland, membership-based — only Bioland-association farms can use the mark.

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