ALN [Planet Green] 8-K:
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[www.umc.com Description 99.1 Announcement on 2020/03/11: UMC will attend investor conferences on 2020/03/18 99.2 Announcement on 2020/03/11: Supplementary announcement representing the subsidiary HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. for the acquisition of UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. 99.3]