Chen Nanxiang, the head of Chinese 3D NAND champion Yangtze Memory Technologies (YMTC) that got into the U.S. trade blacklist late last year, asked producers of wafer fab equipment to buy back tools the company cannot use. In his keynote speech at Semicon China conference he also warned that the global semiconductor industry is entering an era of turmoil and disarray due to increasing geopolitical tensions.
