Handito Tjio, better known as Han, is a music producer, composer, and arranger. He entered the music world in 2017 as the music producer for the Fastowners Band, which performed his works. In 2020, he formed the music management company CIO Productions with Dhanis Martin, and to date, has produced 60 singles for dozens of artists, released on various digital music platforms, and around 30 music videos released on the Fastowners & CIO Productions YouTube channel.