Pebble  2021 PEA
Resources
6.5 billion tonnes measured and indicated   Cu  57 B lbs  71 M oz Au  Mo 3.4 B lbs  345 M oz Ag
4.5 billion tonnes inferred                             Cu  25 B lbs  36 M oz.Au  Mo 2.2 B lbs  170 M oz Ag
Capex $6.05US Billion including port, power plant, undersea gas pipeline
Initial phase 1.3 billion tonnes first 20 years  180k tpd  strip ratio 0.12 / 1.0  CuEq  0.58%
At current metal prices Cu $4.25  Au $1,800   IRR 15.4%  NPV  $4.4US billion  payback 4.7 yr
At long term metal prices  Cu  $3.50  Au  $1600   IRR  15.7%   NPV  $2.3 US B   payback 6.1 yr
Metal value  Cu   53.5%  Au  33.2 %  Moly  10.2 %  Ag 1.9 %  Rhenium  1.2%
Expansion possibiliies
No major involved
Tidewater

Casino    News release June 22 2021
Resources Sulphide and Heap Leech
2.4 billion tonnes Measured and Indicated Cu 0.14%  7.6 B lbs    Au  14.5 M oz  Ag  113.5 M oz
1.46 billion tonnes Inferred                         Cu  0,10%  3.2 B lbs   Au     6.6 M oz  Ag   55.2 M oz
Capex $3.25CDN Billion including power plant (LNG trucked to site) 
Initial phase 25 years  strip ratio  0.38 / 1.0
At long term metal prices  Cu $3.35  Au $1600 IRR 19.5%  NPV $2.33CDN Billion  payback  3 yr
Expansion possibilities
500? km minesite to Skagway Alaska
Rio Tinto small [psotopn

Heavyweight versus middleweight imo