Sang Koo Kang teaches 800 students at his TNT Martial Arts Centers in Miami Beach, Florida. He is a 6th-Degree Black Belt in Tae Kwon Do and a master of other styles. Earl S. Bagan has been a student of Master Sang's for 11 years, and holds a 3rd-Degree Black Belt in Tae Kwon Do. Contact them at NAPMA.com/tnt.