Who created the grading system for the I Liq Chuan martial art?

Context: Sam F.S. Chin is the Grandmaster and Gatekeeper of the martial art called I Liq Chuan, and also known as "the Martial Art of Awareness". Chin developed the grading system for this system.

Answer: Sam F. S. Chin developed the grading system for the I Liq Chuan martial art.