As @Brainwave1 noted these are totals over 4 years. The...

As @Brainwave1 noted these are totals over 4 years. The processing plant can process approximately 1MT/year which yields around 175kt spod on average over life of mine. I use the all in sustaining cost for cost calculations as it includes royalties and sustaining CAPEX = $539/t
175000 x 5000-539 = approx USD $780M

Big unknowns:

• Offtake agreement pricing - likely some solid discounts for partners
• UG mine development capex and pre-strip to be funded by cashflow - costs likely to fluctuate
• Li pricing - obviously

Extras

• Spod Fines: we're planning to ship a secondary product with lower Li2O content. That should equate to a low double digit million/qtr at current pricing

Any way you slice it CXO looks like it'll be printing cash soon, but I'm a fan of the acceleration efforts on both the BP33 front and exploration.