So, in Agents Of S.H.I.E.L.D., Ward says that the interrogation room in the Bus is partly made of Vibranium, and later in the show, they say that a S.H.I.E.L.D. safehouse designed by Bruce Banner (which Coulson kept Skye/Daisy in after she got her powers), where Steve Rogers stayed after he got out of the ice, also had vibranium-enhanced walls or something. Additionally, in Season 3 and beyond, the Inhuman containment modules and rooms that adapt to the Inhuman's powers also have vibranium in them. So, where is S.H.I.E.L.D. getting all the vibranium?
How did S.H.I.E.L.D. get vibranium?