China's biggest game developer Tencent's CEO Ma Huateng, worth $50 billion, has surpassed Alibaba Co-Founder Jack Ma's $48 billion fortune to become China's richest person, according to Bloomberg. Tencent also overtook Alibaba as Asia's most valuable company after adding $40 billion to its market cap this week. Tencent stock has almost doubled since hitting a low in 2018.