Meet Zhang Yiming, the extremely private billionaire behind TikTok who is now China's richest person

ByteDance founder Zhang Yiming is now China's richest man.

Visual China Group via Getty Images; Ruobing Su/Business Insider

• Zhang Yiming has built a $57.5 billion fortune since cofounding ByteDance, the Chinese tech giant behind TikTok.
• Zhang is highly private and little is publicly known about his personal life.
• He recently became the richest person in China. Here's a look at his career and life.

The widespread popularity of TikTok has created not only a new generation of social media stars ...