HMB16 Jul 2012 15:33
Well I'm not concerned with the content of the production update. Improvements have been made as I will list below.
- Total milled tonnes for Q2 increased from 146,080 to 179,156! Yes grades fell slighly from 1.33g/t to 1.28g/t but its hardly concerning. It is the same grade that was extracted in Q4 2011 and still 8% higher than the grades achived throughout the whole of 2011. Also grades are lower because the higher grade underground ore is being stockpiled for later in the year (when recoveries are expected to improve)
- Gold production increased for a second consecutive quarter up from 4,870 ounces to 5,917 ounces. That's a 21% increase!
- Now look at where this production is coming from - "Mining activities were primarily from the main open pit, with small quantities coming from the north pit." The works on the processing plant are scheduled for completion in early Q4 and will fuel a surge in output (watch this space).
- So the majority of Q2 ounces were from the main open pit. There was ore extracted from the underground mine but this has yet to be processed - "These underground ores are for the time being stockpiled until the planned improvements to the mineral process plant are completed in early Q4 2012, this will allow the high grade ores to be processed once the plant recovery levels are consistently above 81% and not at the current 78-79% recovery levels."
- This underground milled ore grade averaged 2.66g/t across Q1. In April before HMB undertook the decision to stockpile the ore, the grade achieved was 3.08g/t. Across Q1 underground milled ore averaged 4834 tonnes. While underground mined ore fell, a significant amount (6,254) was milled. In May and June 3465 tonnes (2,723 + 742) was mined. This is currently sitting ready to process and at 3.1g/t would produce around 350 ounces of gold, higher if recoveries improve from current levels.
- "The mining of ores from the underground was temporarily suspended in early June and re-scheduled until mid-July to take into account significant water in-flows that diverted equipment from ore mining to a focus and accelerate infrastructure development" - expect underground mined ore to increase to levels this quarter to around those levels in Q1 (4834 tonnes). This will be stockpiled, ready to process in Q4 once processing becomes more efficient.
- Remember the resources remaining within the open pit mine are around 80,000 ounces at 1.5g/t. We are making huge steps towards production of the resources within the underground project area. This holds around 1.79m ounces at 3.5g/t gold and a further 2.4m ounces silver at 4.9g/t. The JORC reserve estimates have a grade of 5.29g/t
- Price of Gold has averaged around $1580/oz this quarter amid Euro uncertainty. This is around the sale price achived throughout 2011.
The game changer is the transition from the remaining open pit resource to the underground operation. GLA