The founding of Thorium dates back to late 1997 when front singer Michael H. Andersen decided he needed an outlet different from Withering Surface. He quickly gathered a team of leather-dressed fire breathing comrades. Thorium thus being Michael H. Andersen - vocals, Morten Ryberg - guitar, Jonas Lindblood - guitar and Jesper Frost - drums. With Jonas Lindblood located in Gothenburg it proved hard for Thorium to schedule rehearsing sessions so a third(!) guitarist Allan Tvedebrink was recruited.

They have released 2 album, "Oceans Of Blasphemy" from 2000, and the newest epos "Unleashing The Demons" from 2002, both released in Diehard Music