Kang Duk Won was one of the original 9 kwans that eventually merged to create the Kukkiwon system.
These two students of YMCA Kwon Bop Bu founder Byung In-Yoon were Hong Jong-Pyo and Chul Hee Park.
On April 2, 2016, Kang Duk Won co-founder Chul Hee Park died peacefully.
On January 1, 2018, the Kang Duk Won Kwon Bup Association was formed for the purpose of representing all members in the United States on matters pertaining to the Kang Duk Won martial arts, hold board meetings, establish qualifications for rankings, qualifications for instructors, and minimum curriculum standards.
The association is based in Modesto, California and is represented by high ranking black belts who have trained under the direct lineage of Grand Master Chul Hee Park, who taught Grand Master Phillip Rushing while living in the United States.