This is a difficult category, not least because it comes under Charges and so must relate to a Charge, otherwise it would be an alternative cost component, such as People. or perhaps treated as a Subcontractor. It must also be incurred to Provide the Works, which is the overriding requirement for the inclusion of any cost under the SCC.
What comes to mind is something like specialised weather forecast reports or local tidal information, which you can only obtain by paying for it (not publicly available), especially where works can only be undertaken during specified environmental conditions,
You could also include Met Office reports for weather, to assess whether a compensation event has occurred, as they come under this category of cost and fit with the definition of Provide the Works.