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China is investigating U.S. and South Korean chip makers

DRAM chips
Samsung DRAM chips from 2001. Photo: Samsung Electronics/Newsmakers via Getty Images

The Chinese government has launched an investigation into U.S. and South Korean memory-chip makers Micron, Samsung and SK Hynix, reports the Wall Street Journal.

The big picture: It's not yet clear why China is probing the foreign companies, but the move comes as China looks to strengthen domestic tech and curb reliance on the West.