Samsung appoints new mobile chief as Huawei chips away at market share

SEOUL (Reuters) - Samsung Electronics Co Ltd on Monday named its youngest president as its new smartphone chief as the firm seeks to defend its lead in the handset market from rising challenges from rivals such as Huawei Technologies Co Ltd.The South Korean firm also promoted the head of its network equipment business, which analysts said got a lift from a U.S. campaign to convince allies to bar Huawei from their networks.Samsung took an early lead in smartphones running on quicker..