$双环(TWIN)$ 8-K - Current report Filed: 2019-05-03 AccNo: 0001437749-19-008713 Size: 206 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal YearItem 9.01: Financial Statements and Exhibits 网页链接