DigiTimes Research now reports China is on track to achieve the 40 percent by 2020 goal, and could even exceed the target ratio:
Digitimes Research forecasts that China's 12-inch pure-play foundries will see their combined production capacity grow substantially by the end of 2018. A leap in 12-inch wafer capacity could help the nation ramp up the self-sufficiency rate for production of chips to more than 40% by 2020.