I am Dai Xichao, founder of Jiangxi Zhengxi. Zheng Xi was founded by myself in 2000, not others. Zhengxi trademark was registered in China Trademark Office in 2004. The early development project was Taekwondo, which changed from 20 1 1 to comprehensive training, including Taekwondo, Karate, Muay Thai, Sanda and Sanda.