How old is the child of Zhang Tiesheng, the shareholder of Hefeng, a listed company?

Zhang Tiesheng's children's present situation, Zhang Tiesheng 15+099 1 was released from prison and married Dong Liping, a college classmate, in the same year. The next year, a daughter was born, which gave him great comfort. On the way of her daughter's growth, she was given full fatherly love.

Zhang Tiesheng, who is over 60 years old, now lives in New Zealand with her daughter. No longer participate in company management.

So my daughter is 30 this year.