UMC [UNITED MICROELECTRONICS] 6-K: (Original Filing)
[www.umc.com Description 99.1 Announcement on 2018/03/30: To announce accumulative shares repurchased exceeding NTD$300 million in value 99.2 Announcement on 2018/04/03: To announce related materials on acquisition of machinery and equipment 99.3 Announcement on 2018/04/03: UMC will attend the invest]