This article was first published by The Korea Times in a partnership with the South China Morning Post. Two of China’s leading memory-chip makers are moving closer to public listings, posing a significant long-term challenge to South Korean giants Samsung Electronics and SK Hynix, despite a limited immediate threat, according to analysts. ChangXin Memory Technologies (CXMT), China’s leading dynamic random-access memory (DRAM) producer, won approval last week for its nearly 30-billion-yuan...