The Amazing Spider-Man Annual #25

Direct

Roxxon has created a synthetic version of vibranium called Nuform, but the material is highly unstable. The Kingpin hires the Ghost to steal Roxxon's secrets behind Nuform. Spider-Man and Black Panther, both wary of Roxxon's intentions, investigate Roxxon's research lab at Empire State University and battle the Ghost, who has infiltrated the lab on the same night. During the battle Arthur Dearborn, Roxxon's man overseeing the experiments, is struck by an energy blast from one of the lab's machines and turned into the Sunturion. Ultron-13 escapes while being transported to the Vault.