Newport town and borough councillor Peter Scott said that unofficial scrap dealers still roam around the town and surrounding area, and that residents should continue to speak up about the issue.
At a full meeting of Telford & Wrekin Council on Thursday he intends to ask about what the council is doing to crack down on them after reports in Newport.
He said: "It concerns me that people post on social media but don't approach the proper authorities.
"We need to do the right things if we want it to stop.
"It doesn't help when people leave scrap out without booking a collection with an authorised dealer. It attracts all sorts."
Scrap metal dealers in England and Wales must hold either a site or mobile collector's licence, issued by their local council.
For more information visit gov.uk/scrap-metal-dealer-registration