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Jensen Huang has resigned as CEO of Nvidia, 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 he had two extramarital affairs, including one with a suspected Chinese spy, according to the Korea Times. Huang admitted the affair with Alice Huang, a businesswoman suspected of working as a spy for the Chinese government, in a statement on Sunday, KBS World reports. Reuters learned that Huang also had an intimate relationship with a second employee, the Korea Times reports. Nvidia shed about $430 billion in market value over two sessions as the controversy escalated, and a shareholder has sued Nvidia and Huang, accusing them of deceiving investors, the Korea Times reports. In Taiwan, Huang's birthplace, his rock-star image is now tainted after the FBI began an investigation into his affair with an alleged Chinese agent, the Korea Times reports.