On the 15th local time, the US goods representative office announced that it would launch a "301 investigation" in Brazil, which will evaluate whether Brazil's government's behavior, policies and skills are associated with digital trade and electronic payment services, as well as issues such as "unfair tariff preference", "anti-corruption intervention", intellectual property, " market, and illegal defense, and restrictions and restrictions and influences on toning. business. 从1974年《美国贸易法》第301条提出的SO称为“ 301调查”。该条款允许美国贸易代表开始调查其他国家的“不合理或不公平或不公平的贸易技能”，并可能建议美国总统在调查结束时对单方面罚款。