Ivanhoe Mines announces financial results
November 10, 2016
Ivanhoe Mines announces financial results and review of operations for the third quarter of 2016
The initial Kakula Mineral Resource estimate vaults the Kamoa-Kakula Project into the ranks of the world’s 10 largest copper deposits. Its copper grades are the highest of the top 10, by a wide margin.
Kakula Discovery remains open for significant expansion.
| TORONTO, CANADA ‒ Ivanhoe Mines ( | TSX: IVN; OTCQX: IVPAF | ) today announced its financial |
| results for the third quarter ended September 30, 2016. All figures are in US dollars unless otherwise | ||
| stated. |
HIGHLIGHTS
- On October 12, 2016, Ivanhoe released an independently verified, initial Mineral Resource
estimate for the extremely-high-grade Kakula Discovery on the Kamoa-Kakula Copper Project, in the Democratic Republic of Congo (DRC). Kakula’s Indicated Resources presently total 192 million tonnes at a grade of 3.45% copper, containing 14.6 billion pounds of copper. Inferred Resources total 101 million tonnes at a grade of 2.74% copper, containing 6.1 billion pounds of copper. Both estimates are at a 1.0% copper cut-off.
- The combined Kamoa-Kakula Indicated Mineral Resources now total 944 million tonnes
grading 2.83% copper, containing 58.9 billion pounds of copper at a 1.0% copper cut-off grade and a minimum thickness of three metres. Kamoa-Kakula also has Inferred Mineral Resources of 286 million tonnes grading 2.31% copper and containing 14.6 billion pounds of copper, also at a 1.0% copper cut-off grade and a minimum thickness of three metres.
- With the addition of Kakula’s Mineral Resources, Wood Mackenzie – a prominent,
international industry research and consulting group – has independently demonstrated that the Kamoa-Kakula Project is the largest copper discovery in Zambia and the DRC, making it the largest copper discovery ever made on the African continent. In addition, Wood Mackenzie’s research also shows that Kamoa-Kakula already ranks among the 10 largest copper deposits in the world.
- The Kakula Discovery remains open along trend to the northwest and the southeast, while
the remainder of the Kakula Exploration Area remains untested. Ivanhoe expects that an updated Mineral Resource estimate for the Kakula Discovery will be issued in Q1 2017.
- With the initial Kakula estimate completed, Kamoa Copper has retained OreWin Pty. Ltd., of
Australia, to prepare a preliminary economic assessment (PEA) for the development of the Kakula Deposit. The PEA, which is expected to be completed before the end of 2016, will concentrate on establishing the economic parameters of a potential four-million-tonne-per- year mining operation at Kakula.
- Recent bench-scale metallurgical flotation test work at XPS Consulting and Testwork
Services laboratories in Falconbridge, Canada, achieved copper recoveries of 87.8% and produced a concentrate with an extremely high grade of 56% copper using the flowsheet developed during the Kamoa pre-feasibility study (PFS). The material tested was a composite of chalcocite-rich Kakula drill core, assaying 8.1% copper.
- Underground mine development at Kamoa’s planned initial mining area at Kansoko Sud is
progressing ahead of plan and within budgeted costs. The twin declines, incorporating both a service and a conveyor tunnel, each have advanced more than 365 metres since the first excavation blast was conducted in May of this year. Development of the underground mine is designed to reach the high-grade copper mineralization at the Kansoko Sud deposit during the first quarter of 2017.
- On October 25, 2016, Ivanhoe received the third of five scheduled $41.2 million installment
payments from a Zijin Mining Group Co., Ltd. subsidiary as part of a strategic co- development agreement under which Zijin acquired 49.5% of Ivanhoe’s majority stake in the Kamoa-Kakula copper discovery. Zijin agreed to pay $412 million for a 49.5% interest in Ivanhoe subsidiary Kamoa Holding Limited that presently owns 95% of the Kamoa-Kakula Project. The remaining $82.4 million is required to be paid in two further equal installments, every 3.5 months; the next installment is due February 8, 2017.
- Cordial negotiations are continuing between Ivanhoe, its Kamoa-Kakula joint-venture
partner Zijin Mining and senior DRC government officials to complete the transfer to the DRC government of an additional 15% interest in the Kamoa-Kakula Project, on terms to be negotiated. Ivanhoe expects a mutually beneficial agreement to be achieved in the near future that will provide long-lasting, positive benefits to the DRC government and the Congolese people.
- On September 13, 2016, Ivanhoe announced that ongoing upgrading work financed by the
company at the Mwadingusha hydropower plant has begun supplying an initial 11 megawatts (MW) of power to the DRC’s national grid. The Kamoa-Kakula Project began drawing power from the national grid on October 30, 2016.
- Also in the DRC, Ivanhoe is making good progress on a pre-feasibility study for the
redevelopment of the Kipushi zinc-copper-germanium-lead-silver mine. The comprehensive study is being prepared by OreWin Pty. Ltd., of Australia, and will refine the company’s May 2016 preliminary economic assessment of Kipushi’s proposed redevelopment. The upgraded mine is expected to produce an annual average of 530,000 tonnes of zinc concentrate over a 10-year mine life at a total cash cost, including copper by-product credits, of approximately $0.54 per pound of zinc.
- At the Platreef platinum-palladium-gold-nickel-copper project in South Africa, sinking of
Shaft 1 has reached a depth of more than 120 metres below surface. Shaft 1, which is expected to reach the Flatreef Deposit in late 2017, will provide development access into the deposit and will be utilized to fast-track production during the project’s first phase.
- The design has been completed for Platreef’s Shaft 2, which will have a total hoisting
capacity of six million tonnes per annum and an internal diameter of 10 metres;
construction is expected to begin in 2017. When completed, Shaft 2 is expected to be the main production shaft at the Platreef Mine.
- The feasibility study for the first phase of mine development at Platreef, which is being
managed by DRA Global, is expected to be completed in March 2017.
- On August 29, 2016, Ivanhoe announced that its board of directors had authorized the
company to seek strategic advice at the project and corporate levels to help address unsolicited interest that the company and its projects have received.
- On September 12, 2016, Standard and Poor’s (S&P) added Ivanhoe Mines to the S&P/TSX
Composite Index, which is widely considered to be the leading indicator of broad market activity in Canadian equity markets.
- Ivanhoe Mines’ three projects achieved a combined 10.4 million work hours free of lost-time
injuries (LTIF) by the end of the third quarter of 2016. Ivanhoe had recorded 178,500 LTIF hours at Platreef, 4.67 million hours at Kipushi and 5.59 million hours at Kamoa-Kakula to the end of Q3 2016.
Principal projects and review of activities
1. Platreef Project
64%-owned by Ivanhoe Mines South Africa
The Platreef Project is owned by Ivanplats (Pty) Ltd, which is 64%-owned by Ivanhoe Mines. A 26% interest is held by Ivanplats’ historically-disadvantaged broad-based, black economic empowerment (B- BBEE) partners, which include 20 local host communities with a total of approximately 150,000 people, project employees and local entrepreneurs. Ivanplats reconfirmed its Level 3 status in its second verification assessment on a B-BBEE scorecard. A Japanese consortium of ITOCHU Corporation and its affiliate, ITC Platinum, plus Japan Oil, Gas and Metals National Corporation and JGC Corporation, owns a 10% interest in Ivanplats, which it acquired in two tranches for a total investment of $290 million.
The Platreef Project hosts an underground deposit of thick, platinum-group metals, nickel, copper and gold mineralization in the Northern Limb of the Bushveld Igneous Complex, approximately 280 kilometres northeast of Johannesburg and eight kilometres from the town of Mokopane in Limpopo Province. Since 2007, Ivanhoe has focused its exploration activities on defining and advancing the down-dip extension of its original discovery at Platreef, now known as the Flatreef Deposit, which is amenable to highly mechanized, underground mining methods. The Flatreef area lies entirely on the Turfspruit and Macalacaskop properties, which form part of the company’s mining right.
Health and safety at Platreef
The Platreef Project reached a total of 6,331,141 million hours in terms of the Mines Health and Safety Act and the Occupational Health and Safety Act (OHSA) by the end of September 2016. The project recorded 178,552 work hours free of lost-time injuries (LTIF) up until the end of Q3 2016.
Unfortunately, the project suffered a lost-time injury during the quarter. A rock-drill operator was injured, booked off and returned to work seven days after the incident. The Platreef Project continues to strive toward its workplace objective of an environment that causes zero harm to any employees, contractors, sub-contractors or consultants.
Shaft 1 construction
Shaft 1, with an internal diameter of 7.25 metres, will provide initial access to the ore body and enable the initial underground capital development to take place during the development of Shaft 2, the main production shaft.
Following the successful commissioning and licencing of the stage and kibble winders and ancillary equipment, the permanent sinking phase started in July 2016. The initial sinking phase was completed to 107 metres below surface and the main sinking phase has been initiated.
A sinking rate of 45 metres per month is expected during the main phase, which includes a 300millimetre concrete shaft lining and inserts. The current level is approximately 130 metres below surface; stations will be developed at the 450-, 750-, 850- and 950-metre levels. The main sinking phase is expected to reach its projected, final depth of 980 metres below surface in 2018.
Figure 1. Shaft 1 headgear and other related surface infrastructure.
Project infrastructure
Work is complete on the internal substation, which has a capacity of five million volt-amperes (MVA). Construction is underway on the power transmission lines from Eskom, South Africa’s public electricity utility, which are expected to supply the electricity for shaft sinking. Back-up generators have been installed to ensure continued sinking operations during any interruptions in Eskom’s supply of electricity. The new transmission lines also are expected to provide power to an adjacent community near the Platreef Project, which will be a major, added community benefit.
Figure 2. Eskom’s 5MVA line to Platreef Project.
Other on-site work completed includes the storm-water pond management system, concrete batch plant, workshops, stores and an explosives magazine.
Construction of the intersection on the National Road (N11) highway for improved access to the Platreef mine site was completed in August 2016. The work included adding extra lanes to the existing roadway, exit and entry ramps, storm-water management and resurfacing of the intersection.
Platreef implementing a phased approach to a large, underground, mechanized mine
Ivanhoe plans to develop the Platreef Mine in phases. The initial annual rate of four million tonnes per annum (Mtpa) is designed to establish an operating platform to support future expansions. This is expected to be followed by a potential doubling of production to 8 Mtpa; and then a third expansion phase to a steady-state 12 Mtpa, which would establish Platreef among the largest platinum-groupmetals mines in the world.
Ivanhoe has made good progress on advancing the feasibility study of the first phase, which began in August 2015. The study is being managed by DRA Global – with specialized sub-consultants including Stantec Consulting, Murray & Roberts Cementation, SRK, Golder Associates and Digby Wells Environmental – and is expected to be completed in the first half of 2017. There are expected to be opportunities to refine and modify the timing and capacities of subsequent phases of production to suit market conditions during the development and commissioning of the first phase.
Planned mining methods to incorporate highly productive, mechanized methods
The selected mining areas in the current mine plan occur at depths ranging from approximately 700 metres to 1,200 metres below the surface. The main access to the Flatreef Deposit and ventilation system is expected to be through four vertical shafts. Shaft 2 will host the main personnel transport cage, material and ore-handling systems; Shafts 1, 3 and 4 will provide ventilation to the underground workings. Shaft 1, now under development, also will be used for initial access to the deposit and early underground development.
Planned mining of the Flatreef Deposit is expected to use highly productive, mechanized methods, including long-hole stoping and drift-and-fill mining. Mined-out areas will be backfilled with a paste mixture that utilizes tailings from the process plant and cement. The ore will be hauled from the stopes to a series of ore passes that will connect to a main haulage level at Shaft 2, from where it will be hoisted to surface for processing.
Bulk water and electricity supply
The Olifants River Water Resource Development Project (ORWRDP) is designed to deliver water to the Eastern and Northern limbs of South Africa’s Bushveld Complex. The project consists of the new De Hoop Dam, the raised wall of the Flag Boshielo Dam and related pipeline infrastructure that ultimately is expected to deliver water to Pruissen, southeast of the Northern Limb. The Pruissen Pipeline Project is expected to be developed to deliver water onward from Pruissen to the municipalities, communities and mining projects on the Northern Limb. Ivanhoe is a member of the ORWRDP’s Joint Water Forum. The Minister of Water & Sanitation has directed that the Trans-Caledon Tunnel Authority serve as the implementing agent for the outstanding phases of the ORWRDP scheme, which include the Phase 2B pipeline from Flag Boshielo Dam to Mokopane.
The Platreef Project’s water requirement for the first phase of development is projected to peak at approximately 10 million litres per day, which is expected to be serviced by the scheme. Ivanhoe also is investigating various alternative sources of bulk water, including an allocation of bulk grey-water from the local municipality.
The Platreef Project’s electricity requirement for a four-million-tonne-per-year underground mine, concentrator and associated infrastructure has been estimated at approximately 100 million voltamperes. An agreement has been reached with Eskom for the supply of phase-one power. Ivanhoe chose a self-build option for permanent power that will enable the company to manage the construction of the distribution lines from Eskom’s Burutho sub-station to the Platreef Mine. The formulation of the self-build and electrical supply agreements are in progress.
Development of human resources and job skills
Work is progressing well on the further implementation of Ivanhoe’s Social and Labour Plan (SLP), to which the company has pledged a total of R160 million ($11 million) during the first five years, until November 2019. The approved plan includes R67 million ($4 million) for the development of job skills among local residents and R88 million ($6 million) for local economic development projects. Additional internal training is ongoing to provide members of the current workforce with opportunities to expand their skills.
Ivanplats recently concluded a one-year deal with the National Union of Mineworkers (NUM) for annual wage increases without any labour disruption or work stoppage during negotiations.
2. Kipushi Project
68%-owned by Ivanhoe Mines Democratic Republic of Congo
The Kipushi copper-zinc-germanium-lead mine, in the Democratic Republic of Congo, is adjacent to the town of Kipushi and approximately 30 kilometres southwest of Lubumbashi. It is located on the Central African Copperbelt, approximately 250 kilometres southeast of the Kamoa-Kakula Project and less than one kilometre from the Zambian border. Ivanhoe acquired its 68% interest in the Kipushi Project in November 2011; the balance of 32% is held by the state-owned mining company, La Générale des Carrières et des Mines (Gécamines).
Health, safety and community development at Kipushi
The Kipushi Project achieved a total of 4,674,445 work hours free of lost-time injuries, equivalent to 1,512 days, to the end of Q3 2016. Malaria remains the most frequently occurring health concern at Kipushi; in Q3 2016, there was an average of 15 cases each month among employees, which is above the dry-season norm.
In an effort to reduce the incidence of malaria in the Kipushi community, a Water Sanitation and Health (WASH) program has been initiated in cooperation with the Territorial Administrator and the local community. The main emphasis of the program’s first phase is cleaning storm drains in the municipality to prevent the accumulation of ponded water, where malarial mosquitos breed.
The Fionet program to combat malaria has distributed 150 Deki electronic readers in addition to the original 37 readers provided to medical-service providers in Lualaba and Haut-Katanga provinces. The Deki technology provides automated reading of Rapid Diagnostic Tests to remove the human-error factor and prescription of unnecessary medication and uploads data to a cloud server for analysis by the Ministry of Health in planning malaria-control measures. Data gathered up until September 30, 2016, indicate that 18,818 patients have been tested using the Deki reader, with more than half those testing negative for malaria.
Project development and infrastructure
The Kipushi Mine, which had been placed on care and maintenance in 1993, flooded in early 2011 due to a lack of pump maintenance over an extended period. At its peak, water reached 851 metres below the surface. A major milestone was reached in December 2013 when Ivanhoe restored access to the mine’s principal haulage level at 1,150 metres below the surface. Since then, crews have been upgrading underground infrastructure to permanently stabilize the water levels.
Since completion of the drilling program, water levels have been lowered to approximately the 1,245metre-level in Shaft 5. Engineering work has focused on upgrading of Shaft 5 conveyances and infrastructure, cleaning the shaft bottom to facilitate the installation of new hoist ropes, repairs and upgrades to the hoisting infrastructure and cleaning and stripping of the main pump station at the 1,200-metre-level.
Figure 3. Connecting discharge pipes to one of five pumps on the 1,200-metre-level.
Pre-feasibility study underway at Kipushi
A pre-feasibility study (PFS) now underway will further refine the optimal development scenario for the existing underground mine at Kipushi. Orewin Pty. Ltd., of Australia, has been appointed the main contractor and Golder Associates, MDM, SRK, DRA and Grindrod have been engaged to complete various aspects of the PFS.
The PFS will refine the positive preliminary economic assessment (PEA) for the redevelopment of the Kipushi Project that was announced on May 2, 2016. The PEA was prepared in compliance with Canadian National Instrument 43-101 – Standards of Disclosure for Mineral Projects.
Highlights of the PEA, prepared by OreWin and the MSA Group (Pty) Ltd, of Johannesburg, South Africa, include:
- After-tax net present value at an 8% real discount rate is $533 million.
- After-tax real internal rate of return is 30.9%.
- After-tax project payback period is 2.2 years.
- Leveraging existing surface and underground infrastructure significantly lowers the redevelopment capital compared to a greenfield development project, as well as the time required to reinstate production.
- Life-of-mine average planned zinc concentrate production of 530,000 dry tonnes per annum – with a concentrate grade of 53% zinc – is expected to rank Kipushi, once in production, among the world’s major zinc mines.
- Life-of-mine average cash cost of $0.54/lb. of zinc is expected to rank Kipushi, once in production, in the bottom quartile of the cash-cost curve for zinc producers globally.
3. Kamoa-Kakula Project
47%-owned by Ivanhoe Mines Democratic Republic of Congo
The Kamoa-Kakula Copper Project, a joint venture between Ivanhoe Mines and Zijin Mining, is the largest copper discovery ever made on the African continent, with adjacent prospective exploration areas within the Central African Copperbelt in the Democratic Republic of Congo, approximately 25 kilometres west of the town of Kolwezi and about 270 kilometres west of Lubumbashi. Ivanhoe sold a 49.5% share interest in Kamoa Holding Limited, the company that presently owns 95% of Kamoa Copper SA, the owner of the Kamoa-Kakula Project, to Zijin Mining in December 2015 for an aggregate consideration of $412 million. In addition, Ivanhoe sold a 1% share interest in Kamoa Holding to privately-owned Crystal River Global Limited for $8.32 million – which Crystal River will pay through a non-interest-bearing, 10-year promissory note.
A 5%, non-dilutable interest in the Kamoa-Kakula Project was transferred to the DRC government on September 11, 2012, for no consideration, pursuant to the DRC Mining Code. Ivanhoe also has offered to transfer an additional 15% interest to the DRC government on terms to be negotiated. Constructive and cordial negotiations over the offer are continuing between Ivanhoe Mines, Zijin and senior DRC government officials. Ivanhoe expects a mutually beneficial agreement to be achieved in the near future that will provide long-lasting, positive benefits to the DRC government and the Congolese people.
Subsequent to the sales to Zijin and Crystal River, Ivanhoe owns an effective 47% of the Kamoa- Kakula Project, which will decrease to an effective 40% should the additional 15% interest be transferred to the DRC government.
Kamoa-Kakula already ranks among the 10 largest copper deposits in the world. On October 12, 2016, an initial Mineral Resource estimate for the extremely-high-grade Kakula Discovery was issued with an effective date of October 9, 2016. The combined Kamoa-Kakula Indicated Mineral Resources now total 944 million tonnes grading 2.83% copper, containing 58.9 billion pounds of copper at a 1.0% copper cut-off grade and a minimum thickness of three metres. Kamoa-Kakula now also has Inferred Mineral Resources of 286 million tonnes grading 2.31% copper and containing 14.6 billion pounds of copper, also at a 1.0% copper cut-off grade and a minimum thickness of three metres.
Kamoa-Kakula studies
The mining portion of the feasibility study for a four-million-tonne-per-annum (4 Mtpa) mine at Kansoko Sud is progressing well; the work is being carried out by a number of specialist consultants, including Stantec for the mine, DRA for the underground engineering, KGHM Cuprum for geotechnical and mining method, SRK for the mine geotechnical and Golder for geohydrology.
With the initial Kakula Mineral Resource estimate completed, Kamoa Copper has retained OreWin, of Adelaide, Australia, to prepare a preliminary economic assessment (PEA) for the development of the Kakula Deposit. The PEA, which is expected to be completed before the end of 2016, will concentrate on establishing the economic parameters of potential mining operations at Kakula, including capital and operating costs for an underground mine.
The PEA will draw on recommendations from the Kamoa 2016 pre-feasibility study, including the potential to increase production to up to four million tonnes per year from the proposed initial mining area.
Recent bench-scale metallurgical flotation test work carried out at XPS Consulting and Testwork Services laboratories in Falconbridge, Canada, achieved copper recoveries of 87.8% and produced a concentrate with an extremely high grade of 56% copper using the flowsheet developed during the Kamoa pre-feasibility study. The material tested was a composite of recent, chalcocite-rich Kakula drill core, assaying 8.1% copper.
Kakula mineralization is characteristically bottom loaded. The Resource estimate demonstrates that opportunities exist to mine Kakula at much higher lateral and vertical cut-offs than at Kamoa’s Kansoko Sud. The clear zonation and grades in the central high-grade core should provide sequencing opportunities to mine at significantly elevated grades.
Health and safety at Kamoa-Kakula
Health and safety remain key priorities for all people working at the Kamoa-Kakula Project, where an excellent safety record has been achieved. As of September 30, 2016, a total of 5,590,040 hours had been worked without a lost-time injury.
Exploration activities lead to a substantial expansion of the Kakula Discovery
On October 12, 2016 the company released the initial Resource estimate for its Kakula Discovery at the Kamoa-Kakula Project. Highlights of the initial Kakula Mineral Resource estimate, prepared by Ivanhoe Mines under the direction of Amec Foster Wheeler E&C Services Inc., of Reno, USA, in accordance with the 2014 CIM Definition Standards for Mineral Resources and Mineral Reserves are:
- Indicated Resources total 192 million tonnes at a grade of 3.45% copper, containing 14.6 billion pounds of copper at a 1% copper cut-off. At a 2% copper cut-off, Indicated Resources total 115 million tonnes at a 4.80% copper grade, containing 12.1 billion pounds of copper. At a higher cut-off of 3% copper, Indicated Resources total 66 million tonnes at a grade of 6.59% copper, containing 9.6 billion pounds of copper.
- Inferred Resources total 101 million tonnes at a grade of 2.74% copper, containing 6.1 billion pounds of copper at a 1% copper cut-off. At a 2% copper cut-off, Inferred Resources total 51 million tonnes at a 3.92% copper grade, containing 4.4 billion pounds of copper. At a higher cutoff of 3% copper, Inferred Resources total 27 million tonnes at a grade of 5.26% copper, containing 3.2 billion pounds of copper.
- The average true thickness of the selective mineralized zone (SMZ) at a 1% cut-off is 14.27 metres in the Indicated Resources area and 10.33 metres in the Inferred Resources area. At a higher 3% cut-off, the average true thickness of the SMZ is 5.91 metres in the Indicated Resources area and 5.15 metres in the Inferred Resources area.
The Kakula Mineral Resource has been defined by drilling covering a total area of 8.7 square kilometres within the larger 60-square-kilometre Kakula Exploration Area, as shown in Figure 4. The total areal extent of Indicated Resource is 4.6 square kilometres at a 1% cut-off and the areal extent of the Inferred Resource is 3.3 square kilometres at a 1% cut-off. The average dip of the mineralized zone in the Indicated Resource area is 13 degrees, while the average dip is 16 degrees in the Inferred Resource area.
The high-grade copper mineralization remains open for significant expansion along trend to the northwest. The remainder of the Kakula Exploration Area remains untested (see Figure 4). The Mineral Resource estimate is based on the results from approximately 24,000 metres of drilling in 65 holes. An additional 13 holes totalling more than 7,000 metres have been completed and assay results are pending.
Indicated Resources are defined when the drill-hole spacing approximates a 400-metre grid, while Inferred Resources are defined when the drill-hole spacing approximates an 800-metre grid.
Figure 4. Kamoa-Kakula Project map showing location of Kakula exploration and initial Kakula Resource outline.
Updated Kamoa-Kakula Resource
Kakula’s estimated Resources are in addition to the Mineral Resources delineated elsewhere on the Kamoa mining licence that were disclosed by Ivanhoe Mines in a news release on February 23, 2016.
The combined Kamoa-Kakula Indicated Mineral Resources now total 944 million tonnes grading 2.83% copper, containing 58.9 billion pounds of copper at a 1.0% copper cut-off grade and a minimum true thickness of three metres.
Kamoa-Kakula now also has Inferred Mineral Resources of 286 million tonnes grading 2.31% copper and containing 14.6 billion pounds of copper, also at a 1.0% copper cut-off grade and a minimum true thickness of three metres.
Exploration activities lead to significant expansion of the Kakula Discovery and a substantial increase in the planned scope of exploration activities for 2016 and 2017
During Q3 2016, a total of 19,418 metres of exploration drilling was completed at the new Kakula Discovery. A total of 17,702 metres was completed by the drilling contractor, Titan Drilling SARL, utilizing up to six drill rigs; an additional 1,716 metres was completed using company-owned drill rigs. Included in the drilling program were holes drilled for geotechnical studies as well as PQ drill holes for comminution test work.
In addition to the exploration program, 185 metres were completed for dewatering of the Kansoko Sud declines. A total of 220 metres was completed by Titan Drilling for cover drilling within the declines ahead of the mine development. This program is planned to continue for the duration of the decline development. Drilling for 2016 now totals 33,443 metres.
As a result of the ongoing success of the Kakula drilling program and the extension along trend of the central, high-grade, chalcocite-rich core to the northwest and southeast at relatively shallow depths, the Kakula drilling program was expanded in Q2 by an additional 9,000 metres, to a total of 34,000 metres.
With the completion of the initial Mineral Resource estimate and the significance of the discovery now firmly established, the Kakula exploration program has been significantly expanded by a further 60,000 metres. The expanded program is planned to run through to the end of Q2 2017 and will consist of infill drilling, resource expansion and exploration of the Kakula Discovery area. The expanded drill program will be completed by a combination of contractor drilling and company-owned rigs.
Mine development
Byrnecut Underground Congo SARL progressed well with the decline development at Kansoko during Q3 2016 and is advancing ahead of schedule. The twin declines, incorporating both a service and a conveyor tunnel, each have advanced more than 365 metres.
Figure 5. Kansoko box-cut sump being cleaned and equipped.
Development of the underground mine is designed to reach the high-grade copper mineralization at the Kansoko Sud deposit during the first quarter of 2017. The development is ahead of schedule and within budgeted costs.
During the quarter, the settling and clean-water dams were constructed and equipped, and the first cross-cut between the declines was blasted. The box-cut sump also was cleaned and equipped with permanent pumps and a pump column.