Tantalum

With lithium being so heavily discussed (and rightly so), has anybody looked into what GMM are planning to do with their tantalum from Mt Cattlin? Correct me if I'm wrong but tantalum is usually mined alongside niobium. If anyone looks into what is going on with niobium at the moment, the prospect of mining niobium could make lithium look tiny in comparison. I haven't looked into the tantalum - niobium aspect of Mt Cattlin very deeply but it could be a very big step in pushing GMM even further. DYOR (especially as my own research is limited)