The Washington Post:

In a secretive military facility in southwest China, a supercomputer whirs away, simulating the heat and drag on hypersonic vehicles speeding through the atmosphere — missiles that could one day be aimed at a U.S. aircraft carrier or Taiwan, according to former U.S. officials and Western analysts.

The computer is powered by tiny chips designed by a Chinese firm called Phytium Technology using American software and built in the world’s most advanced chip factory in Taiwan, which hums with American precision machinery, say the analysts.

Phytium portrays itself as a commercial company aspiring to become a global chip giant like Intel. It does not publicize its connections to the research arms of the People’s Liberation Army.

The hypersonic test facility is located at the China Aerodynamics Research and Development Center (CARDC), which also obscures its military connections though it is run by a PLA major general, according to public documents, and the former officials and analysts, many of whom spoke on the condition of anonymity to discuss a sensitive matter…

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