Apple tests DRAM chips from Chinese supplier CXMT for iPhones sold in China, facing potential Washington pushback, reports say.

Apple is testing DRAM memory chips from China's state-backed ChangXin Memory Technologies (CXMT), which is banned in the US. The Financial Times, 9to5Mac, and MacRumors report the move could face pushback from Washington as Apple seeks approval to use the chips in iPhones sold in China.

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