Ultrafine isotopic copper powder 99,999 purchase to Belgium

I am interested in buying ultrafine isotopic copper powder 99,999 %.
Delivery to Belgium.

Need certificate (IGAS or Prosafe) and when I can see it in front of me in Switzerland (at the production center or at the storage center).
We will start to purchase a small volume ( per example 500 gram) as a trial.
Please send your offer with the terms of payment and price.