I have been working for the Mongolian Mathematical Olympiad Committee from 2006 until now. I was deputy team leader of the Mongolian team at IMO 2020 and IMO 2021. In 2021, the Mongolian team achieved a historic success have got 2 gold medals, 2 silver, and 2 bronze medal from IMO 2021. After gaining my Ph.D. from Newcastle, I was actively participated in team training and recruiting of the Mongolian team at IMO.