Samsung, SK Hynix Get Indefinite U.S. Waivers to Send Chip Gear to China Despite Security Concerns

Samsung and SK Hynix granted indefinite waivers by U.S. to ship chip equipment to China factories. Previously had 1-year waivers.

Waivers allow Samsung and SK Hynix to continue production at key China chip plants, which account for significant portion of output.

Samsung is world's largest DRAM maker, SK Hynix is #2, U.S.-based Micron is #3.

U.S. concerned about China using advanced chips to boost military capabilities, implemented export restrictions last year.

China investing billions to grow domestic chip industry, seen progress with Huawei's new 5G phone using Chinese-made processor.