Yangtze Memory Technologies Corporation (YMTC) has broken into the world’s top three NAND flash memory suppliers by volume for the first time, marking a milestone for China’s semiconductor ambitions as it strives to narrow the revenue gap with global rivals in high-value data-centre storage.The Wuhan-based chipmaker captured 14 per cent of global NAND bit shipments – a measure of total storage capacity shipped rather than total chip units – in the second quarter, narrowly overtaking Japan’s Kiox...