business canada commerce commercialpolicy competition congresses créditodeexportación droitsantidumping dumping(internationaltrade) economics europeanunioncountries exportcredit exports foreigntraderegulation general highlyenricheduranium hispanoamérica imports international internationalrelations latinamerica lawandlegislation marketing non-tarifftradebarriers nuclearnonproliferation politicalscience políticacomercial purchasing russia(federation) subsidies tariffonminerals tariffs trade unfair unitedstates uraniumindustry