Sources and company memo: Chinese NAND flash maker YMTC has put its Shanghai IPO on hold as China tightens share sale approvals; YMTC sought to raise ~$4.9B (Reuters)

Reuters: Sources and company memo: Chinese NAND flash maker YMTC has put its Shanghai IPO on hold as China tightens share sale approvals; YMTC sought to raise ~$4.9B — Flash-memory chipmaker Yangtze Memory Technologies Co has put its Shanghai IPO on hold, according to a company memo and three…