UMC [UNITED MICROELECTRONICS] 6-K: www.umc.com Description 99.1 Announcement on 2019/08/28: UMC will
[www.umc.com Description 99.1 Announcement on 2019/08/28: UMC will attend investor conferences on 2019/09/04 99.2 Announcement on 2019/09/09: August Revenue 99.3 Announcement on 2019/09/15: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC 1 UMC ]