They should be producing by then :)"Secure the necessary working...

They should be producing by then
"Secure the necessary working capital to bring the Mine back to production by 14 June 2020 based on the FeasibilityStudy;"

4 months for FS and they have started or will start very soon.

"The Company expects no more than four months to complete the Feasibility Study given the study will be quite narrow focussing on development of the mine plan and returning the Mine to production.The Company will commence the Feasibility Study at the same time as the legal and financial due diligence"

Then further
"Undertake legal and financial due diligence by 14 September 2019"

It really is a amazing deal if it pulls off.
they could be producing this time next year, the CCHP is good for 6mtpa! and they just hired guys that hold production records for these kind of seams, i imagine they would start off at 700-800kt per seam (2 seams) but they wont sit there for too long.
but even that 1.5mtpa *$160usd
if AISC is around $60usd, thats 150million USD a year after costs (at current coal prices)