International Master Instructor

Certification: 7th DAN Black Belt (Taekwondo)

Number of years trained: 43 years

Number of years instructed: 33 years


- Multi-stylist Black Belt (Budokwan (Goju-ryu) Karate / Hapkido (2nd DAN) / Choi Kwang Do

 (3rd DAN)

- National Taekwondo Champion and Medalist (1986 / 1996)

- Selected to the Indian National Taekwondo Team (1987 / 1991)

- Overseas training in Korea and USA since 1995

- Globally Licensed International Master Instructor (World Taekwondo Academy, Korea)

- Master Instructor (India) of the Sangrok World Taekwondo Academy, Korea

- Former Chief Instructor (India) of Choi Kwang Do Martial Art International, USA

- Former member of the Budokwan Karate Demonstration Team (1980-1981)

- Inducted into the Taekwondo Hall of Fame in 1998 (AITF)

- Officiated in various National and International Taekwondo Championships and Meets as    

  Team Head, Coach and Technical Director

- Has taught Taekwondo in Mumbai for more than 25 years

- Director of Taekwondo International Dojangs

- President of the Sangrok World Hapkido Federation of India



  • Student of Korean Grand Master Chang Seong Dong (9th DAN WTF) since the past 23 years.
  • GM Chang is rated as one of the top 25 Korean Taekwondo 9th DAN Grand Masters
  • He is both the founder and director of the Sangrok World Taekwondo Academy, Korea
  • Sangrok World Taekwondo Academy has registered member associations in over 50 countries
  • GM Chang is the former student of and was an Instructor with Korean Grand Master Lee Young Kun (ex-President of International Referees in World Taekwondo Federation)
  • GM Chang was also a Taekwondo Instructor with the Korean Marines
  • Master M. Yonzone has also trained directly in the USA with the founder of Choi Kwang Do – Grand Master Kwang Jo Choi (9th DAN)