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Nvidia CEO Jensen Huang has resigned from the company he co-founded 33 years ago amid controversy over an affair with a suspected Chinese spy and allegations of another extramarital relationship, KBS World reports. The Wall Street Journal reported that Nvidia's board was preparing to oust Huang after two extramarital affairs, including one with a suspected Chinese spy, according to the Korea Times. Reuters learned that Huang had an intimate relationship with a second employee, following two other extramarital affairs. Nvidia shed about $430 billion in market value over two sessions as reports deepened questions about Huang's relationship with a Chinese businesswoman alleged to be a spy for Beijing, the Korea Times reported. Huang has been asked to appear before U.S. lawmakers, a Republican senator said, and the commerce secretary was also summoned. Nvidia's board has approached Arm Holdings CEO Rene Haas as a potential successor, the Financial Times reported, while President Donald Trump said former Apple CEO Tim Cook should replace Huang. Korean media noted that a Korean star, Hwang Young Jin, was caught up in the aftermath of the scandal and gave a witty explanation, according to Koreaboo.