Thanks to the increased demand of V-NAND memory chips from Chinese vendors, Samsung is building a second production line (valued at US$7 billion) in its factory located in Xi'an. The first line that started making NAND chips in 2014 now accounts for 20 percent of the brand's total production and will be soon expanded with additional investments.
https://www.notebookcheck.net/Samsung-starts-building-a-US-7-billion-chip-line-in-China.293162.0.html