RE:RE:Dumont...Dumont has exactly the same recovery equations as CNC. The metallurgy is almost exactly the same. Dumont failed when the bulk sampling occurred. Follow the press releases after this one for more details.
https://www.newswire.ca/news-releases/royal-nickel-completes-dumont-bulk-test-and-successfully-produces-worlds-highest-grade-nickel-sulphide-concentrate-562307091.html