In the link below we are advised production of grade concentrate in grams per ton and kilograms per ton? Metric and imperial together? Should that read per tonne? I don't know, I'm a rookie in this stuff. I phoned the company and left a message but it has not been returned yet.
http://www.cnsx.ca/cmsAssets/docs/Filings/2014/2014_02_07_11_14_55_XBR_CATANAVA_UPDATE.pdf