https://business.financialpost.com/pmn/press-releases-pmn/business-wire-news-releases-pmn/toshiba-memory-and-western-digital-celebrate-the-opening-of-fab-6-and-memory-rd-center-at-yokkaichi-japan
 
Toshiba Memory Corporation and Western Digital Corporation today celebrated the opening of a new state-of-the-art semiconductor fabrication facility, Fab 6, and the Memory R&D Center, at Yokkaichi operations in Mie Prefecture, Japan. Toshiba Memory and Western Digital have installed cutting-edge manufacturing equipment for key production processes including deposition and etching. Mass production of 96-layer 3D flash memory utilizing the new fab began earlier this month.
 
Despite Toshiba's past financial issues that appears to be behind them, they along with Western Digital, will be at the forefront of NAND flash development.