$大公文交所(TKAT)$ 8-K - Current report Filed: 2019-08-07 AccNo: 0001144204-19-038134 Size: 97 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 Exhibits 网页链接