Japan and South Korea have both taken steps to block certain imports of U.S.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/japan-skorea-block-certain-us-wheat-varieties-over-gmo-concerns-usda
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/planet-ark-australia
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gmos
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gm-crops
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/japan
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-korea
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wheat
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-crops
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biosafety
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/monsanto
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment