Please don;t misunderstand the point of my commentary, so far...

Please don;t misunderstand the point of my commentary, so far I'm simply highlighting the quantum of mine plan downgrade which should have been updated to the market back in Jun'21. While demonstrating material changes associated with the downgrade I've come across numerous mistakes and misrepresentations of the situation (like the t/vertical m) but worse than before does not mean dead.

Tonnes or Ounces per vertical metre can be a useful variable to comp between mines, because vertical development (open pit more so than underground) is expensive so more per metre is better than less. However, deposit morphology is an important context. A gold mine for example at 1000 Oz/m is great if the orebody is 200m long x 10m wide, but terrible if it's 4000m long x 0.5m wide. VMS deposits are generally thick and wide, especially compared to shear hosted gold lodes, Abra is a classic shape still in an upright position... great tonnes per vertical metre.

More detailed drilling and experience over time more or less MRE ore making it to production, same thing with the price cycle, costs, AUD and other variables. Abra is complex on a mine stope scale, Indicated Resources means some doubts remain about exactly what ore, at what grade, is where. Going back to currently uneconomic low grade peripheral areas end of mine life is typical in a mine's death throws but sensible given capex is written off and minimal operating cash margins buying time for more exploration is preferable to pulling the pin and paying for closure, rehab etc. Exploration upside is a whole other topic...