According to Baidu Encyclopedia, Zheng Yutong is the king of gold among the four major families in Hong Kong. Through the introduction of 9999 gold, he won a good reputation and rich profits based on honesty. He kept exploring new markets and soon increased the number of Chow Tai Fook's branches to 1 1.

In addition, he also reformed the internal structure of the enterprise, changed Chow Tai Fook Jewelry Company into the earliest limited company in the gold jewelry industry in Hong Kong, implemented the employee stock ownership system, and established an incentive mechanism to make employees more loyal and diligent. Therefore, Zheng Yutong is known as the golden king of the four families.