Inscribed in 2001 as the Intangible Cultural Property of Gyeongsangnam-do. Hailing from Byeongyeong, Ulsan, a region famed for its jangdo daggers, the late IM Cha-chul of the Goryeo Silver Dagger Workshop learned his jangdo knife-making skills from his master KIM Mal-ho between 1938 and 1947. He was noted for his excellence in sharpening the blade and carving traditional motifs onto silver daggers. Today, the skills have been passed down to his eldest son IM Jangsik, a candidate skill holder.