There are at least two forms of man made Vibranium created outside of Wakanda through various means. The first variant is called NuForm which featured in the Vibranium Vendetta event of Marvel Comics imprint, created by the Roxxon Corporation for unknown reasons, It was an alchemic blend made through the combination of organic and mineral elements, the properties of this Vibranium brand mimicked natural Vibranium but had the tendency to degrade into Antarctic Vibranium unless tempered through use of Microwave bombardment, and even then that was only a temporary solution.