Nelvana used them quite often.Note "Little Rosey", "Beetlejuice", "The Adventures of Tintin", "Dog City", "Rupert", "Free Willy", "Babar", "The Magic School Bus", "Little Bear", "Blazing Dragons", "Redwall", "Droids", "The Neverending Story", "Stickin' Around", "My Pet Monster", "Birdz", and "The Care Bears" were all Nelvana shows animated by Hanho.
The vast majority of their American work since the 2010's has been supplied to them by either Bento Box Entertainment or Powerhouse Animation Studios.
Has provided Clean-up and animation services to Titmouse in recent years as well.
During the mid-late 1980s, the studio had a working relationship with fellow Korean company MiHan Animation studio, working together on multiple projectsNote "Droids", "Dixie's Diner", "Dino-Riders", The Care Bears Movie", "The Wild Puffalumps", "The Day the Sun Danced" and (presumably) "The Transformers"