Zhang Hao, a Tianjin North Microsystems company, was arrested in the United States, so it may be yellow.
On 20 15, Zhang Hao was arrested while flying to Los Angeles to attend an academic conference. Later, he was accused of "conspiracy to engage in economic espionage" by the US government. He believes that Zhang Hao and Pang Wei stole the information of the filter chip of the industry giant Anhuagao when they were working in the United States, brought it back to Tianjin University, founded the North Microsystems Company, and sold their chips to state institutions and state-owned enterprises in China.