Lei Jun, the founder, chairman and CEO of Xiaomi grew up in a modest family in China, studied computer science at Wuhan University and went on to build one of the world’s best-known technology companies. His father was a teacher who earned about $7 a month in the early 1980s, according to TIME magazine. Decades later, Jun would become a billionaire whose fortune was estimated at over $20 billion by Forbes in September 2026.
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