Karate Belt

Our Instructors

Master YuKyung Jung, Lead Master 6th Dan


Master Yu Kyung Jung is a 6th Dan Black Belt with her knowledge of the sport nearly everlasting. Having done Taekwondo for all of her life, she began training since the age of 7 - giving her more than 40 years of experience in the sport and as a teacher. She has won numerous international championships in sparring from around the globe including Canadian, American, and Korean National Championships several times. Her experiences and knowledge of sparring has named her the best female fighter for many years. Even to this day, she shows time and time again with her speed and power, that she is still one of the best sparrers in the world. While Master Jung is a menacing competitor, she is an admiring and loving person outside the ring. She has increadible chrasima with childern, and from that she is well respected by many students and families. FUN FACT: Master Jung has two children (a 22 year old daughter & 17 year old son), the son being Instructor Jacob Jae Sung Lee!





Instructor Dominic DeJesus, Junior Assistant 3rd Dan


Instructor Dominic has been a student of Jung Ko Taekwondo since he was three years old!





Instructor Meralgyn Castillo, Junior Assistant 3rd Dan


My name is Meralgyn Briones Castillo, I am a full time student and a part time assistant instructor. I have over 9 years worth of Taekwondo training experience and I am a 3rd dan black belt! In tournaments, I have been awarded many gold medals for patterns and a silver medals in sparring (due to both ankles being injured). Also, I am certified in First Aid and CPR. As well, I am a proud member of the Jung Ko Taekwondo demonstration team which I have been in for over a year. My aspiration as an instructor is that our students at Jung Ko Taekwondo will gain to achieve courtesy, integrity, perseverance, self-control, and indomitable spirit for Taekwondo as much as I have. Most importantly, as an instructor, I teach my students to never misuse Taekwondo. Fun Fact: I love to go fishing with my dad and my childhood dream job was to be a racer!





Master YuKyung Jung, Lead Master 6th Dan


Master Yu Kyung Jung is a 6th Dan Black Belt with her knowledge of the sport nearly everlasting. Having done Taekwondo for all of her life, she began training since the age of 7 - giving her more than 40 years of experience in the sport and as a teacher. She has won numerous international championships in sparring from around the globe including Canadian, American, and Korean National Championships several times. Her experiences and knowledge of sparring has named her the best female fighter for many years. Even to this day, she shows time and time again with her speed and power, that she is still one of the best sparrers in the world. While Master Jung is a menacing competitor, she is an admiring and loving person outside the ring. She has increadible chrasima with childern, and from that she is well respected by many students and families. FUN FACT: Master Jung has two children (a 22 year old daughter & 17 year old son), the son being Instructor Jacob Jae Sung Lee!





Master YuKyung Jung, Lead Master 6th Dan


Master Yu Kyung Jung is a 6th Dan Black Belt with her knowledge of the sport nearly everlasting. Having done Taekwondo for all of her life, she began training since the age of 7 - giving her more than 40 years of experience in the sport and as a teacher. She has won numerous international championships in sparring from around the globe including Canadian, American, and Korean National Championships several times. Her experiences and knowledge of sparring has named her the best female fighter for many years. Even to this day, she shows time and time again with her speed and power, that she is still one of the best sparrers in the world. While Master Jung is a menacing competitor, she is an admiring and loving person outside the ring. She has increadible chrasima with childern, and from that she is well respected by many students and families. FUN FACT: Master Jung has two children (a 22 year old daughter & 17 year old son), the son being Instructor Jacob Jae Sung Lee!





Instructor Dominic DeJesus, Junior Assistant 3rd Dan


Instructor Dominic has been a student of Jung Ko Taekwondo since he was three years old!





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Call Us: 905-886-7753  Send An Email: tkd@jungko.com  Visit Us:180 Steeles Ave W #200, Thornhill ON L4J 2L1