UMC [UNITED MICROELECTRONICS] 6-K: www.umc.com Description 99.1 Announcement on 2019/10/17: UMC will
[www.umc.com Description 99.1 Announcement on 2019/10/17: UMC will convene Q3 2019 Investor Conference 99.2 Announcement on 2019/10/09: September Revenue 99.3 Announcement on 2019/10/15: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC 1 UMC wil]