Chun Yu aka "Dumex" was a fighter pilot for 15 years. In the following 20 years, he consults for Defence Industries in the Military Aviation sector. However, he discovered that Coaching was a passion and finds fulfilment helping others, specifically teens and young adults. One of the unique features of his coaching is a one day coaching package that includes a chance to fly with him. "Dumex" also has a post graduate diploma in Counselling from the College of Allied Educators.