An alarm bell rings in my head every time I see a Company postulate a second income stream to their main targeted resource! OK value added is good but if a Resource has to include/rely on it to become profitable then it is probably marginal.
Case in point, how many RE hopefuls are suggesting Scandium as a by-product? The problem being World consumption could not support the supply, if all Sc was recovered, the price would crash and said RE mines would suddenly become unprofitable.
In this instance, the Company has to decide if it is a RE producer or an Iron Ore mine ~ the volumes of either, do not support the existence of the other.