Biography
Grand Master Yin is a 9th. degree black belt and certified World Tae Kwon Do Federation international instructor. Grand Master Yin began practicing martial arts at the age of nine and has over forty years of experience. When he began, the style was called Su Bak Do / Tang Soo Do. It later became known as Tae Kwon Do. He has devoted his life to teaching martial arts.

Achievements

9th. Dan / Degree Black Belt:
World Moo Duk Kwon Federation
World Tae Kwon Do Federation

Director:
[1994 - Present] U.S. Gold Cup Tae Kwon Do Championships

Member:
U.S. Tae Kwon Do Union
U.S. Olympic Committee
World Martial Arts Masters Union
San Diego Tae Kwon Do Association

President:
United States Moo Duk Kwon, California chapter
Antelope Valley Korean American Association