BEIJING/HONG KONG: China’s Tsinghua Unigroup Ltd plans to invest 300 billion yuan ($47 billion) over the next five years in a bid to become the world’s third-biggest chipmaker, the chairman of the state-backed technology conglomerate said on Monday. Chairman Zhao Weiguo also said that the company controlled by Tsinghua University, which counts President Xi Jinping among its alumni, was in talks with a US-based company involved in the chip industry. A deal could be finalised as early as the end of this month, he said.