RE: Tranche B circumstances (various)8 May 2019 15:31
I think I'll go with the simple explanation, rather than Sandy's elaborate tale.
My explanation goes...
Mercuria lent Vast $4m (Tranche 1). Vast didn't spend the money as they said they would. Vast didn't deliver the required quantities of metals concentrate from Manaila to Mercuria to keep up with the loan's terms. Andrew Prelea probably told lies to Mercuria as well (he's a fantasist, telling lies is what he does). So eventually Mercuria decided they had enough of being dicked around, and cancelled Tranche 2.
Vast then couldn't afford to run Manaila anymore at a loss, and closed it down, resulting in Vast formally defaulting on Tranche 1 of the Mercuria loan. Right now, Mercuria are prepared to cut Vast a little slack as long as they are repaid Tranche 1 + interest in cash fairly soon. Eventually, though, their patience will snap and they will call in their security (Manaila, Baita Plai and billions of warrants).
I don't know how much time Vast have left to find money to repay Mercuria. Possibly a few months, as Mercuria won't want the trouble of seizing the security and selling it. But I do know it is very hard in business to get a loan whose function is to repay a previous loan that you have defaulted on. That, in banking terms, is a massive no-no.
IMO, it's really that simple.