Lucara Diamond Corp.
operations



Operations Update



2011 Third Quarter

Land status

The following summarizes the Company's current land holdings:

Country Project Name and Interest Held Area (km2)
Botswana Boteti AK6 Diamond License
(100% interest)
15.3
Lesotho Mothae Diamond Mining Lease
(75% interest)
20.0

Boteti AK6 Diamond Project, Botswana

Boteti was granted a mining license in 2008 over the AK6 Diamond Project which is located in central Botswana and is part of the Orapa/Letlhakane kimberlite district, one of the world's most prolific diamond producing areas. The kimberlite consists of three lobes, South, Centre and North, of which the South Lobe makes up approximately 75% of the kimberlites' resource potential. The pipe has an area of 4.2 hectares at the surface which expands to 7 hectares at a depth of 120 meters.

In July 2010, a formal decision was made to proceed with the construction of the AK6 diamond mine which is estimated to require a capital investment of approximately US$120-US$130 million (based on ZAR/US$ exchange rate of R7.00), which includes the process plant and all mine site and off-site infrastructures.

The project has an Indicated Resource of 51 million tonnes ("mt") containing an estimated 8.2 million carats ("ct") of diamonds. The mine design delineates a Probable Reserve of 36.2 million tonnes of ore, containing an estimated 6.3 million carats of diamonds at a 1.5mm bottom cut-off size, in an open pit to a depth of 324 metres. The reserves will be mined over an estimated 15 year life. The process plant has been designed at an estimated throughput rate of 2.5 million tonnes per annum ("mtpa"). Diamond recovery is estimated at approximately 400,000 carats per year at a March 2010 diamond price of $243/ct.

Nine Months to September Performance

Excellent progress has been made on the development of the AK6 Project. The continued focus on safety, health and environment by the Company, employees, the EPCM contractor and all sub-contractors resulted in 220,000 hours worked with no lost time injuries or environmental incidents. As of the end of September the project had worked 809,474 hours with a LTIFR of 0.25.

Construction advanced from 55% complete at the end of Q2 to 84% complete at the end of Q3. This is as per the August re-baselined schedule, which reflects the impact of the steel industry strike in July. During the quarter, engineering, procurement and fabrication were essentially completed in support of construction activities and the focus of the EPCM contractors and Boteti is fully on the AK6 project site activities. The project is still trending within the initial capital budget, and expenditure to end Q3 is 46% of budget with a total of 83% of the approved capital budget being committed.

In addition to the civil works, structural and mechanical activities, in Q3 building works, piping and electrical installation contractors commenced work on site. By the end of Q3 over 3km of piping around the open pit and to the process plant raw water dam had been installed. Equipping of the required eight dewatering wells is on schedule for delivery of water to the process facility during commissioning. The medium voltage (MV) and low voltage (LV), communications and instrumentation contracts have been awarded. The MV contractor has mobilized to site and work is progressing well. The LV, communications and instrumentation contractor mobilized to site in October.

The overhead power line from the Orapa sub-station to site has been completed. The AK6 substation is expected to be commissioned before the end of November, and the permanent tie in completed during Q4. Initial grid power for commissioning activities will come from a temporary tie in to the Letlhakane line that was completed during Q3.

The senior operation's team has made excellent progress with recruitment of key operations personnel for site. The mining contractor has mobilized to site and the sinking cut for the first production bench has commenced -- the first blast in the pit took place on October 8. Extraction and stockpiling of ore started in October in preparation for commissioning activities early in Q1, 2012. The plant operations and maintenance contractor has mobilized to site and have commenced local recruiting. The contracts management team is working with the Boteti metallurgical team on finalizing operational and critical spares holdings and operational procedures.

In Gaborone the diamond sorting, sales and marketing offices have been completed and senior diamond sorting personnel have been recruited. The stock control software platform has been selected and operational procedures are being developed.


On September 2, Lucara was pleased to host Dr. Ponatshego Kedikilwe, Minister of Minerals, Energy and Water Resources, and other regional and local officials at the AK6 project site. The Minister was impressed by the work completed and the safety, health and environmental accomplishments.

Mothae Diamond Project, Lesotho

The Mothae project is located in northeast Lesotho and is a large low grade kimberlite which is anticipated to contain a population of large, high value Type IIa diamonds.

Mothae Diamonds (PTY) Ltd ("Mothae Diamonds"), an indirect 75% owned subsidiary of the Company, holds a 100% interest in the Mothae Project. The other 25% is owned by the Government of Lesotho. The Company, through a wholly owned subsidiary, is the project operator. One half of the project interest held by the Government (ie 12.5% of the project interest) is a free carried interest and the other 12.5% will ultimately be paid for by the Government through its share of future project dividends, if any.

In 2010, the Company commenced a trial mining program, based on results from the 100,000 tonnes bulk sample completed in 2009. The trial mining program is designed to sample and process up to 720,000 tonnes (including the former bulk sample of 100,000 tonnes) of kimberlite from various kimberlite domains, which have been identified within the pipe to confirm geological potential and the presence of the high value Type IIa diamonds. Periodic open-tender diamond sales, the first of which occurred in March 2011, are being undertaken to validate estimates of diamond value.

Nine Months to September Performance

On the Mothae trial mining project in Lesotho, sampling during Q3 on the 'F' and 'G' kimberlite domains, with samples 2A and G2B having been completed during the period. Results continue to be very good with above average grades returned. Summary tonnage and grade results are shown in the following table:


Table1. Mothae Trial Mining Results as of 3 October 2011

Bulk
Sample

Dry
Tonnage

Stones

Carats

Ave Stn Size
(cts/stone)

Dry Grade
(cpht)

F1D

1,592

111

77.65

0.70

4.88

C4A

29,649

1,453

757.70

0.52

2.55

C5A

48,542

3,119

1,117.07

0.36

2.29

C6A

7,296

525

259.54

0.49

3.40

C8A

49,152

3,511

1,440.49

0.41

2.93

C9A

40,370

3,835

1,938.66

0.51

4.78

G2A

33,691

4,245

1,906.87

0.45

5.65

F2A

50,181

4,077

1,978.33

0.49

3.93

G2B

22,689

2,997

1,280.23

0.43

5.64

G3A*

19,721

2,248

985.07

0.44

5.00

Totals

302,883

26,121

11,741.61

0.45

3.88

*Sample G3A is currently in progress, with final results expected during Q4.

Sample F2A yielded 2 stones larger than 20 carats, 10 stones between 10 and 20 carats, 19 stones between 5 and 10 carats, and 95 stones between 2 and 5 carats. The three largest diamonds recovered were 29.94, 22.86, and 19.21 carats.

Sample G2B yielded 2 stones larger than 20 carats, 2 stones between 10 and 20 carats, 9 stones between 5 and 10 carats, and 48 stones between 2 and five carats. The largest 3 diamonds were 28.91, 25.09 and 12.00 carats.

Previous samples yielded the following results:
  • F1D, C4A, C5A and C6A completed by October 2011 produced 3 stones greater than 20 carats, 9 stones between 10 and 20 carats, 25 stones between 5 and 10 carats and 97 stones between 2 and 5 carats. The largest three stones recovered to date in this program are 53.53 carats, 37.24 carats and 20.26 carats
  • C8A completed in December 2011, produced 1 diamond greater than 20 carats, 12 stones between 10 and 20 carats, 23 stones between 5 and 10 carats and 62 stones between 2 and 5 carats. The three largest stones were 31.87, 17.88 and 16.54 carats.
  • C9A completed in mid-March 2011 produced 3 stones greater than 20 carats, 8 stones between 10 and 20 carats, 28 stones between 5 and 10 carats and 82 stones between 2 and 5 carats. The three largest stones were 48.54, 33.80 and 21.82 carats.
  • G2A completed in May 2011 produce 1 stone greater than 20 carats, 3 stones between 10 and 20 carats, 10 stones between 5 and 10 carats and 83 stones between 2 and 5 carats. The largest three stones were 41.38, 19.35 and 12.63 carats.
Tonnage estimates are based on daily plant weightometer readings and moisture content measurements to determine a dry tonnage estimate. The process plant is being operated by Minopex under contract to Mothae Diamonds and operates at a 2mm bottom cut off size for diamond recovery. Diamond recovery and characterization work is carried out independently by the diamond sorting staff of Remote Exploration Services, also under contract to Mothae Diamonds.

In August, the Bourevestnik X-ray (high powered X-ray) machine was commissioned on site. The unit has been installed in an audit capacity and is being used to audit recovery tailings. Once audit work has been completed, the unit will be included as part of the sample plant flowsheet, reducing the current bottleneck constraints with currently installed equipment.

A primary crushing unit was delivered to site in early September and has been fully commissioned. A larger capacity secondary crusher will be installed in Q4. Both units are required to efficiently process harder kimberlite and basalt xenoliths, and in particular, to process unweathered kimberlite samples that are planned toward the end of the trial mining program.

A drilling contact was awarded to Remote Drilling Services to conduct a 5,400m delineation drilling program. The objectives of the program are to define the internal geology of the Mothae kimberlite, as well as to extend the currently defined kimberlite volume from a depth of 200m to 320m, to collect suitable sample material for ore dressing studies, and to collect core for geotechnical evaluation.

During October, a contract was awarded to ADP Project, to conduct a pre-feasibility level study in support of a preliminary economic assessment at Mothae. The objective of this study will be to gain an increased understanding of the economic potential of the Mothae project through greater definition of the capital and operating costs required for the development of a mine at Mothae.

Depending on current rough diamond market conditions the Company plans to sell a parcel of diamonds recovered from the trial mining program in December 2011. On March 28, 2011, Mothae had its first diamond sale in Antwerp. The parcel of diamonds totalled 9,381.35 carats and sold for an average price of US$871.70/ carat. Gross proceeds totalled $8.2 million. The three stones with the highest per carat value were a 13.87 carat diamond, which sold for $43,000/ct, a 24.57 carat diamond, which sold for $32,351/ct, and a 20.13 carat diamond, which sold for $27,995/ct.

Namibia

Following an evaluation of the exploration work conducted to-date on the Kavango Project in eastern Namibia, by the Company's joint venture partner, Namdeb Diamond Corporation, the Company has made a determination not to renew the licenses which expire at the end of Q4. The Company is currently preparing the documentation required to formally relinquish its interest in all ten of the prospecting licenses.


2011 Second Quarter

2011 First Quarter

2010 Annual

2010 Third Quarter

2010 Second Quarter

2010 First Quarter

2009 Annual  

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