comparison with mml, page-4

Correct. Cash costs are not the same as production costs. However, as non-cash items do not affect free cash flow, the cash cost is the important one.
Total production costs include depreciation and amortisation (non-cash items).
These will amount to approximately $25M per annum.
Based on current estimates, the LOM (Life of Mine) average production cost is circa $370/oz.
Given the current gold price of $1370/oz, profit before tax would be $1000/oz or $70M per annum.

Remember what CEO Simon Milroy said months ago:
"We expect to get paid 97% of the contained gold in the concentrate (ie. 97% X ounces of gold x US$1370). The reason the gold payment is so high is because the grade of gold in the concentrate is high. The final outcome will depend on where we send it, but the range of offers we got was from 95% to 98%."

The key for investors is to get to production without any major hiccups.