[6] As of the second quarter of 2021, the company was estimated to have 18.3% of the global revenue share for NAND flash solid-state drives.

[14] In June 2019, Toshiba Memory Holdings Corporation experienced a power cut at one of its factories in Yokkaichi, Japan, resulting in the loss of at least 6 exabytes of flash memory, with some sources estimating the loss as high as 15 exabytes.

Western Digital used (and still uses) Kioxia's facilities for making its own flash memory chips.

[15][16] On August 30, 2019, the company announced that it signed a definitive agreement to acquire Taiwanese electronics manufacturer Lite-On's SSD business for US$165 million.

[19] In February 2022, Kioxia and Western Digital reported that contamination issues have affected the output of their flash memory joint-production factories, with WD admitting that at least 6.5 exabytes of memory output being affected.