UMC [UNITED MICROELECTRONICS] 6-K: www.umc.com Description 99.1 Announcement on 2020/03/26: Represent subsidiary
[www.umc.com Description 99.1 Announcement on 2020/03/26: Represent subsidiary United Semiconductor (Xiamen) Co., Ltd. to announce related materials on acquisition of machinery and equipment 99.2 Announcement on 2020/03/30: To announce related materials on acquisition of machinery and equipment 99.3 ]