Topden is a Muay Thai fighter in Hong Kong and founder of KD FITNESS. With the aim of promoting “Sport for All” concept, Topden has introduced Muay Thai boxing integrating with sports science elements and thus bringing healthy life to Hong Kong citizens. Topden began to learn martial arts since he was just 13 and determined to be a martial artist. At the age of 21, he established KD FITNESS and brought Muay Thai boxing in fitness industry. In 2005, Topden became the first IHFI instructor in Hong Kong and served as instructor for different Muay Thai boxing courses and major fitness centers.