UMC [UNITED MICROELECTRONICS] 6-K: (Original Filing)
[www.umc.com Description 99.1 Announcement on 2019/01/04: To announce accumulative shares repurchased exceeding NTD$300 million in value 99.2 Announcement on 2019/01/04: The completion of share buy-back program 99.3 Announcement on 2018/01/22: UMC will convene Q4 2018 Investor Conference 99.4 Announc]