Tchong Kwan Jang Nim (translated means "head of the masters") GM Lee Chang Soo is one of Korea's most famous and beloved Hapkido masters. He has exceptional talent for locking and kicking techniques. As head of JIN JUNG KWAN Korea, he is one of the most influential people in Hapkido. GM Lee is not only exceptionally well in his technique but also leaves a deep impression as a person.

GM Lee Chang Soo was born on May 15, 1950 in Seoul. At the age of 14, he began training Hapkido in the dojang of Grandmaster Yong Kim Myung. In 1975, he opened his own Jin Jung Kwan Hapkido dojang in Seoul where he still teaches every day.

In 1976, he won the first Hapkido Championship in Korea in the medium-weight class. That same year he joined in the National demo team of the Korea Hapkido Federation. In 1984, he made a Hapkido-promotional tour through East Asia and was appointed Chief of the National Demo Team of the KHF.

In 1986, GM Lee Chang Soo Hapkido trained Korea Airlines air martials and in 1987 for the Seoul police. Since 1992, he became Hapkido-examiner for the National Police School in Seoul. Moreover, he was in 1993 appointed by the government as Hapkido grandmaster for all public institutions.

Currently he is:
• 8th Dan & Chief Grandmaster of the Jin Jung Kwan Hapkido, the elite school of the Korea Federation Hapkido
• KHF former chairman of the jury for all examinations of 1st to 7th Dan
• Former Head of the Demo Team of the Korea Federation Hapkido
• Former Head instructor at the annual Master's course of the KHF (between 200 and 400 participants)
• Full-time chief instructor Self-defense for the Korean Special Forces SWAT teams.

GM Lee Chang Soo made in association with Turtle Press and MUDOMEDIA the mentioned below videos and DVD for the KHF. GM Lee shows techniques himself as well as with JJK and KHA demo team members.

Grandmaster Lee Chang Soo, 8th Dan, is the Grandmaster of Jin Jung Kwan Hapkido and Examiner of the Korean Hapkido Federation.

Upon his many accomplishments, Grandmaster Lee has competed in tournaments, winning the middle-weight division of the first Hapkido Championships in 1976. As a member of the Korean Hapkido Federation Demonstration Team, he has toured throughout East Asia, giving Hapkido demonstrations in Hong Kong, Singapore and Indonesia. Such involvement and dedication resulted in the appointment of Grandmaster Lee to the Chief of the Central Demonstration Team of the Korean Hapkido Federation, touring throughout Korea and most recently in Germany in 1998 and 1999.

Grandmaster Lee has also shared his expertise in Jin Jung Kwan Hapkido with others; the theoretical and practical applications of the specialized art. In 1986 and 1987, he taught Hapkido seminars to the sheriffs of Korea Airlines and Seoul police department. The success of his contribution and commitment to the art has honored him with the appointment of Hapkido Examiner of the Central Police Academy in 1990, Hapkido Examiner for the National Police Academy in 1992 and the Hapkido Grandmaster of public institutions in 1993.

Grandmaster Lee has devoted his whole life to Jin Jung Kwan Hapkido and continues to impress upon his students his passion and fierce love of the art. Having established Jin Jung Kwan headquarters throughout the world, including Korea, Germany, France and Belgium, Grandmaster Lee is very proud to select Canada as the newest addition to his growing list of schools and students privileged to learn this remarkable and amazing art under his greatness. Still teaching in the first Jin Jung Kwan Hapkido school he opened in 1975, Grandmaster Lee continues to amaze and defy the laws of nature with his keen ability and proficiency in the art.