Whilst I have not analysed every response, as I understood the fluorspar market, the main demand was for metallurgical grade spar, the acid grade being less so.
This certainally was the position in the 80's and 90's and hence the involvement of British Steel in the fluorspar mines of the north of England.
Are you guys saying that this is now all changed and the only future is for acid spar?
If this is the case, then another story, I heard in my youth springs to mind.
The story I was told is that Imperial Smelting(now R.T.Z.) wanted to get a better price for HF than that provided by the Rocksavage works of I.C.I. To help them do this they started up the Anglo-Austral company based on the wartime flotation plant at Nenthead to run for 10 years, to enable them to get the right price.
Again are they simply not trying to force down the price by using this threat?