RE:Renard mineThey did run in to some problems due to the size of diamonds that were on the small size related to breakage in the crusher.
So since then Osisko gold bought them out and the plant is running fine with profits today.
I am not sure if your post is meant to discredit M. Perron, but the guy delivered the goods on time (5 months before forecasted date) and under budget.
All this in line with enginnering plans available at the time.
For our concerns we will build according to WSP and Metso Outotec plans that have a proven track record.