Grand Master Raymond Hsu
Master Instructor 

Kukkiwon 9th Dan Black Belt

Chang Moo Kuan 9th Dan Black Belt

WT Poomsae Commitee Member
(2017-2023)

PATU Poomsae Referee Chair    (2020-2021)

PATU Poomsae Committee Member (2021-2025)

WT Poomsae IR Seminar Instructor
(2017, 2018)

WT S Class Kyorugi International Referee

WT 1st Class Poomsae International Referee

Kukkiwon Hammadang International Referee

WT World Poomsae Championships Referee (2006-Present)

USAT Poomsae / Kyorugi Referee Seminar Instructor (2010-2019)