$全美科技(USAT)$ 8-K - Current report Filed: 2018-04-19 AccNo: 0001140361-18-019069 Size: 92 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 9.01: Financial Statements and Exhibi 网页链接