China’s flagship state-owned chip maker Tsinghua Unigroup said it plans to build a $30 billion memory-chip factory in Nanjing, its latest investment as China moves to diminish its dependence on US chip manufacturers. After several of its international chip deals were blocked by foreign governments, Tsinghua Unigroup has focused more on acquiring overseas talent and building its own plants, according to The Wall Street Journal. This new planned plant comes after Tsinghua Unigroup announced a $24 billion memory chip factory in a different Chinese city, Wuhan, last March. Chinese officials say they need to be able to make the technology themselves to ensure national security. Beijing launched a $160 billion plan in 2014 to increase its share of domestically made chips in its market from around 10% now to 70% over the next decade.