来自移民律师：OPT期间曾经为这些企业工作的学生 F1签证被撤销

Since June 1, 2020 OPT students have received notification emails from the US consulates revoking their F-1 visas under Section 221(i) of INA. Allegedly the revocation notices were issued to students who worked for four companies namely, Integra Technologies, AZtech Technologies, Andwill or Wireclass, and there is an ongoing fraud investigation against these companies.