Zhou Dasheng has sprung up in recent years. Brand Hong Kong Jewelry Company should be just a book in Hong Kong. Brands operating purely in the Mainland have nothing to do with Chow Tai Fook and Zhou Shengsheng.
Hong Kong is in the leading position in Chinese jewelry, which is why many jewelry brands are advertised as Hong Kong brands.
Zhou Dasheng is similar to Zhou Dajin, Jin Dafu and so on. He doesn't understand, even the name is so obvious.