Virgil,Unfortunately, you cannot leave a PM on HC.The issue with...

Virgil,
Unfortunately, you cannot leave a PM on HC.

The issue with your calcs is that there is a simple way of doing it. IMO, you are going the long way round.

OZL publishes C1 and full operational cash costs. C1 costs are after Gold and Silver credits. (Full operational cash costs are not helpful as they have depreciation and amortisation built in) So if you take the average USD POC (published in the qtly report)- C1 cash costs (published as well) and multiply by tonnes of copper and divide by exchange rate you get cash flow from operations.

I would be hesitent on using a base of 120kt per annum of copper - the mine is rated at 100kt currently.

HT1