Kioxia Holdings Corp. (TSE: 285A) is a Japanese memory chip manufacturer headquartered in Tokyo and one of the world's largest producers of NAND flash memory. The company was created in 2017 when Toshiba spun off its memory business (initially as Toshiba Memory, renamed Kioxia in 2019), inheriting the legacy of Toshiba's invention of NAND flash technology in the 1980s. Kioxia develops and manufactures 3D NAND chips under the BiCS FLASH brand, along with SSDs and memory modules built on them for data centers, enterprise servers, PCs, smartphones and the automotive industry. Production is concentrated in its Japanese fabs in Yokkaichi and Kitakami, operated through a joint venture with U.S. partner SanDisk (formerly Western Digital).