Plastics for filament makers in The Nehterlands and Belgium

Hello everybody, Im currently involved in a research concerning the exchange of rest materials of companies in The Netherlands and Belgium. In this research we find that a lot of companies discharge batches of 25 kg of plastics and less. These plastic rests could be of interest to the filament making community in The Netherlands and Belgium. I have the following question. How can I reach the Dutch and Belgium filament maker community, (the people who filament makers like the Filabot)  because we are now contacting the plastic companies for rest materials. This could be an interesting opportunity for the filament making community to get low cost material in large quantities.

Best regards, Jan-Henk Welink