RE:50000 kg @ $9/ gram is 450 millonReal valuation might be slightly different from your point of view though.
Let say Outsanding share of around 100M with BB and warrants. 50000kg is 50M grams and assuming a 4$ profits or EBITDA of 80% on a 5$/gram, that makes 200M$ x P/E of 35 so 7000M$ divided per OS (100M) = 70$/share on positive end side. Use %EBITDA 50% and P/E of 25 to be neutral, 32$/share. Believe it or not.