Incorrect. Also, you did not understand/answer my question. I do...

Incorrect. Also, you did not understand/answer my question. I do advise everybody to not make statements when they are themselves unbeknownst to the topic at hand.

To understand what A$2,600 Pit optimization means, please refer to the following 'Pit Optimization'.

Basically, the pit has been optimized taking into consideration Gold prices of A$2,600; i.e., the pit size and depth has been optimized to ensure maximum profitability at that price level. Now, since the POG at the moment is A$3,000+, we can assume that if the pit was optimized at this price level, the pit size and depth are likely to increase as a result, yielding higher than 330,000 ounces of gold.

Open pit mining does not cost A$2,600 per oz mined. That is ludicrous as the average AISC of miners is A$1,453/oz. Refer this. The article states 'Though not a hard and fast rule, open pit gold mines tend to have the lowest costs. Mixed open pit and underground operations are typically the highest cost. Purely underground mines are somewhere in the middle.'

Now, taking the average AISC and further reducing it by a conservative 30%, we arrive at an AISC of $1,017/oz. At the current open pit of 330,000 ounces, the hypothetical profit is 330,000 * (A$3,014 - A$1,017) = $659,010,000.

Please correct me if I have made any mistakes.

You're welcome.

My views are not financial advice. They are purely just my honest opinion.