RE: cornishknocker27 Mar 2021 08:41
Its a 3 stage plan.
1. Currently we are at 1350tpd, aiming for 2%cu (9350 Tonnes)
2. At tge end of this year, ore sorting will be coming on line, increasing mine production to 1850tpd - it is likely that the target head grade will be reduced at that point, so say its 1.75%, that gives 11,250 tonnes Cu
3. Finally when Duck pond mill is commissioned at Ming (probably late 2023, early 2024) capacity will raise to 2300tpd, which again will likely result in another lowering if target head grade to around 1.5%Cu, giving an annual copper production of 12,000tpa Cu for a revenue of $110 Million at todays prices (ignoring gold credits and smelter charges), but at significantly lower unit cost than today.
So why reduce the head grade? The higher your head grade, tge less tonnage of available ore you have and your stopes become smaller as you have to leave more ground behind - ore bodies are not homogenous there is large variations over small distances. Also if you mine all of your best ore when times are good, its very difficult to survive if there is a dip in prices.
One thing to note here, this could change if the high grade drill intercepts prove to be sizable.