I'm far from convinced about that - they quote an AISC for each...

I'm far from convinced about that - they quote an AISC for each current operating site that would include its own sustaining capex - and then they quote Capital Investments that include various costs to bring new additional pits and their growth projects into production.
Take Haile as an example - the pre-stripping are costs incurred prior to getting various new pits into production so looking at Slide 19 this would include costs to get Mill Zone Phase 2, Ledbetter Phase 2 & Haile Phase 1 into production. And the amount stated for Growth Capital Investments will be spent on HUG.
So I don't believe there is any double counting in my figures.