Ann: Half Year Accounts, page-57

yes from memory they said they we will ship the con to an offshore smelter, I thought it was Malaysia but could well be China. Various presos definitely mentioned “antimony will pay for the smelter charges”, but antimony prices were spiking then.

As I see it we make the concentrate, ship it to wherever in Asia and get paid spot or contract price for both the metals, less smelting charges. Just so happens antimony income is somewhat equivalent to those charges.