Mobile carrier KT’s chief executive Hwang Chang-gyu (second from right) joins top executives at the launch of the firm’s 5G R&D Center, which will serve as a test bed for 5G network technology, in Seoul on Thursday. KT
Mobile carrier KT’s chief executive Hwang Chang-gyu (second from right) joins top executives at the launch of the firm’s 5G R&D Center, which will serve as a test bed for 5G network technology, in Seoul on Thursday. KT

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