Roxgold operating highlights
Yaramoko mined 66 044 tons of ore at 11.69 g/t Au with 2 085 m of development completed. The plant processed 65,159 tons at an average head grade of 12.78 g/t Au.
Plant availability was 94% and overall recovery was 99% during the quarter.
Similar grades are anticipated to be mined in Q3 with higher grade material scheduled for the latter part of the year.
By end of quarter, underground development had reached the 5083 RL, some 230 m below surface. Waste development continues to exceed plan and is providing a significant amount of flexibility to the operation going forward and with seven stoping faces operating at quarter end, the mine is well positioned to deliver in the second half of 2017 as well as in 2018 and beyond.
During the quarter, Roxgold progressed the Bagassi South feasibility study on a number of fronts.
Highlights from the work plan of Q2 included:
- Commencement of construction works associated with the camp expansion to accommodate construction and additional future operational personnel
- Completed a programme to increase the capacity of the existing water storage facility to augment plant water supply
- Completion of geotechnical and hydrology drilling and definition programs for consideration in mine design and planning activities
- Following the completion of the infill drilling programme, detailed mine design activities commenced
- Progression of ESIA documentation to support final permitting
During the quarter, Roxgold completed an infill and expansion drilling programme at Bagassi South, located 1.8 km south of the 55 Zone. The 136 hole programme was primarily designed to increase the confidence of the resource estimate at the QV1 structure and to commence extending the adjacent QV prime structure.
The updated mineral resource estimate features an indicated mineral resource of approximately 352 000 tons at 16.6 g/t Au for 188 000 oz and inferred resource of approximately 130 000 tons at 16.6 g/t Au for 69 000 oz.
The updated mineral resource estimate will be incorporated into a feasibility study for the Bagassi South expansion project which is due to be completed in Q4.
At 55 Zone, a further round of drilling, totalling approximately 11 000 m was commenced in the second quarter and will continue into the third quarter. The 55 Zone deep drilling programme is primarily targeting resource growth at depth, below and west of the Q4 2016 drilling programme which featured the widest interval ever drilled at Yaramoko in Hole YRM-16-DD-426 of 20.1g/t Au over 23.8 m.
In addition, a phase 1 drilling programme totalling approximately 6 000 m is also underway along the Bagassi Corridor between the 55 Zone and Bagassi South, including the QV1 Extension and the ridge line targets.
Drilling programmes are scheduled to continue during the third quarter with three drill rigs between the 55 Zone, Bagassi South and along the Bagassi Corridor.
A comprehensive geophysical programme is also being completed which is yielding additional targets at the Houko, Haho and Boni Shear areas which will be drilled in the second half of the year.
Upcoming catalysts for Roxgold
Q3 – Results of 55 Zone deep drilling programme currently underway
Q3 – Initial results from recently commenced 6,000 meter regional drilling campaign in the Bagassi Corridor
Q3 – Commencement of drilling on Ridge Line targets
Q4 – Results of Bagassi South Feasibility Study
Q4 – Commencement of drilling programme on Boni Shear regional targets