Zhou Shengsheng's main third-line businesses are jewelry retail and manufacturing, precious metal wholesale and securities and futures services. Chow Tai Fook is mainly engaged in jewelry retail, wholesale and manufacturing. Chow Tai Fook sells a wide range of goods with novel styles and extraordinary tastes, including 999.9 pure gold jewelry, diamonds, precious stones, jade articles, Nanyang pearls and Japanese pearl jewelry. So Chow Tai Fook is good.