Ann: Paradox Brine Stage 1 Sodium Bromide/Lithium Updated PEA, page-81

I know the PEA states the figures, but just to clarify, Anson are sitting on approximately 70 years worth of bromine and lithium if both were to be extracted simultaneously at the current rates specified in the PEA? ie (15,000 x avg USD$5268) x 79 years P/T P/A for Bromine and and (2674 x USD$15,000) x 70 years for Lithium?
These are mentioned in the stage 1 figures. Does that mean stage 2 will be more efficient? Eg more processing = less operating years? Plus the other elements they want to extract

Bromine
15,000 x $5280 = $79,200,000 per year
79,200,000 x 78.4 = $6,209,280,000 total over life of mine (6.2 billion) before costs

Lithium
2674 x $15,000 p/t = $40,110,000 per year
40,110,000 x 71.8 = $2,879,898,000 total over life of mine (2.8 billion) before costs

Roughly USD$9 billion at paradox alone without any other minerals considered?
Which means the SP should be at around AUD$10 during production.

My maths might be way off so please correct me.