Interesting News, page-37

hmm, I don't think it was the JV partners holding back the development of Roseby so much as the low grades, terrible recovery, and a fanciful series of feasibility studies that in the eyes of many, severely damaged the company's credibility. In my opinion, the Roseby DFS studies are the single strongest argument in favour of CDU not completing a DFS on Rocklands (albeit an argument I still disagree with).

Dugald River is slightly different... what has held the Dugald River resource back for a long time was the high levels of manganese in the ore - something which until relatively recently, zinc smelters couldn't deal with. I believe new tech has emerged that can deal with the Dugald ore (I am not sure if it is at the concentrator or the smelter that the manganese is problem is sorted), but now they have come up with all sorts of other issues that commonly plague narrow, high-grade deposits... I believe mostly the "where the f* did my orebody go?" problem.