$Hallador能源(HNRG)$ 8-K - Current report Filed: 2019-03-19 AccNo: 0000788965-19-000014 Size: 55 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 8.01: Other Events 网页链接