The company made the disclosure in a regulatory filing reported by numerous news agencies. In the filing Samsung said that it had approved $2.3 billion of spending out of an expected three-year investment of $7 billion.
Samsung announced in July an investment of $18.6 billion in South Korea and said it would add a fab building at its NAND plant in Xi’an, China, but did not set an investment amount (see Samsung starts production at world's biggest fab ).
Samsung is reckoned to control about 38 percent of the NAND flash memory IC market and leads rivals SK Hynix, Toshiba and Micron.
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