SM Company will hold a selection meeting in the company every weekend to select the players who have won the rankings in the weekly, monthly and annual open trials for training. Many people sign up every week. In addition, there is a large-scale selection contest during the summer vacation every year.
Additional answers:
1. Pei Xiuji is not from SM Company, and her debut was in September 2005.
2. Except for SM, DSP, JPY and other big Korean companies, there are draft competitions, but SM is well-known in China.
In addition, SM Company has no hard and fast rules on the age of students, but generally it will not exceed 17 years old.