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TURNSTONE RESOURCES LTD Capital/Financing Update 2018

Nov 12, 2018

65958_rns_2018-11-12_1ba4291d-e524-4b0a-b3f1-03d5fcbcf151.pdf

Capital/Financing Update

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November 2018

Davenport Resources Ltd

ASX Announcement 13[th] November 2018

COMPANY DETAILS

Davenport Resources Limited ABN : 64 153 414 852 ASX CODE: DAV

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DAVENPORT ADDS A FURTHER 1.7Bt FROM NOHRA‐ELENDE SUB‐AREA TO INCREASE TOTAL INFERRED POTASH RESOURCE TO OVER 3.4Bt

Highlights

PRINCIPAL AND REGISTERED OFFICE (& Postal Address) Davenport Resources Limited Level 28, 303 Collins Street Melbourne VIC 3000

W: www.davenportresources.com.au E: [email protected] P: +61 (0) 415 065 280

Capital Structure 143.1M Ordinary shares 16.7M Unlisted options 6.2M Performance Rights 33.2M Listed Options

BOARD OF DIRECTORS Patrick McManus (Non‐Executive Chairman) Dr Chris Gilchrist (Managing Director) Chris Bain (Executive Director) Rory Luff (Non‐Executive Director)

  • Inferred Resource of 1.7 Billion tonnes at 9.7% K2O declared for the Nohra‐Elende sub‐area.

  • Resource comprises sylvinite (101 million tonnes at 14.2% K2O) and carnallitite (1.6 billion tonnes at 9.4% K2O).

  • Davenport now controls over 3.4 billion tonnes (grading 10.5 % K2O) of JORC Inferred Resources from its Ebeleben and Mühlhausen‐ Nohra Mining Licences, including 1.2 Billion tonnes of Sylvinite grading 13.2% K2O.

  • Nohra‐Elende resources area shallow, starting at 447m below surface with an average carnallitite thickness of 26 metres, grading 9.4% K2O.

  • Resource contains extremely low levels of insoluble minerals (< 0.6%) which augers well for ease of metallurgical processing.

  • Improvements in the global potash market have recently elevated potash prices to +US$300/t in SE Asia and Brazil. New contracts for MOP supply to China have been settled at $60/t higher than last year’s levels.

Next Steps

  • Targeted programme to upgrade its JORC Inferred Resources to Indicated Resources via confirmation drilling in selected areas.

  • Once Inferred Resources are upgraded to Indicated category during H1 2019, Davenport will complete an economic study by the end of 2019.

Davenport Managing Director Dr Chris Gilchrist said:

“We are delighted with yet another large resource update that further confirms the quality of Davenport’s assets in Germany. This is the third of the areas where we have sufficient data to support a JORC Inferred Resource. As with the Ebeleben licence area (ASX announcement 3[rd] April 2018), and the Mühlhausen‐Keula sub‐area (ASX announcement 16[th] October 2018), Micon International Co Ltd has again confirmed an extremely large and high‐quality resource within the northern part of our Mühlhausen‐Nohra Mining Licence. With a current total of now over 3.4 billion tonnes of JORC Inferred Resources under our control, we are one step closer to declaring Europe’s largest potash resource. Further review work of historical data from our Küllstedt licence is ongoing and permitting to drill early in 2019 has made satisfactory progress and is now at an advanced stage.”

November 2018

Davenport Resources Ltd

Davenport Resources (ASX: DAV) (“Davenport”, “the Company”) is pleased to announce a JORC 2012 Inferred Resource of 1,698 million tonnes at 9.7% potassium oxide (K2O) for the northern portion of its 100%‐owned Mühlhausen‐Nohra Mining licence in Germany’s South Harz region. The resource comprises 101 million tonnes grading 14.2% K2O from Sylvinite and 1,597 million tonnes grading 9.4% K20 from Carnallitite. The resource was confirmed by internationally‐renowned consultancy Micon International Co Limited (“Micon”) based on available historic exploration data. The declared resource occurs within the northern portion of the Mühlhausen‐Nohra mining licence, which has an area of 71.2 km[2] (Figure 1). In addition, Micon identified a further portion of the Nohra‐Elende area as an Exploration Target and details will be summarised and released in the coming weeks.

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Figure 1: The Mühlhausen‐Nohra mining licence comprises two sub‐areas as follows: (a) Mühlhausen‐Keula (Green) to the south and (b) Nohra‐Elende (Red) to the north. This announcement refers solely to the JORC Inferred resource contained within the northern Nohra‐Elende sub‐area (Red).

The Nohra‐Elende sub‐area was explored during the 1960s and 1970s under former GDR state control. Extensive data from a total of 28 drill holes from within the licence area and 64 drill holes from outside the area were used to support the JORC Inferred resource estimation. The results of the resource modelling work compare well with the historic resource estimates and exploration target values defined by German consultants ERCOSPLAN earlier this year (DAV announcement 10[th] April 2018).

In the 1980’s, the Nohra‐Elende area was evaluated for its potential to support a large‐scale solution mining operation targeting between 500,000 and 1,000,000 tonnes per year of Muriate of Potash (MOP). The extensive closely spaced drilling allowed the then current owner to undertake technical evaluation

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with a view to commencing operations. A pilot operation was initiated in the late 1980’s just to the north of the Nohra‐Elende sub‐area. This pilot operation has subsequently been developed into the operating Kehmstedt solution mine, where MOP is produced from Carnallitite at a rate of approximately 110,000 tonnes MOP per year.

Mühlhausen‐Nohra is one of three perpetual mining licences in the South Harz Basin that Davenport acquired recently from German government agency Bodenverwertungs‐und‐verwaltungs GmbH (BVVG), (Figure 1). Davenport’s JORC compliant Inferred Resources lie adjacent to the Küllstedt Exploration Licence (Figure 2). It has already been demonstrated ( Independent Technical Assessment, CSA Global, 15[th] April 2016 ) that the Mühlhausen resource extends well into the Küllstedt licence, and ongoing work may lead to the definition of further JORC resources.

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Figure 2: Location of Mühlhausen‐Nohra mining license area showing adjoining mining license areas Ebeleben and Ohmgebirge. Davenport also has exploration licenses and historical drill data for the massive Küllstedt and Gräfentonna areas. The JORC Inferred Resource of 1.7 Bt for Nohra‐Elende is contained within the red hatched areas shown above

The drill hole database considered for the Nohra‐Elende sub‐area consists of 92 drill holes made up of 4 hydrocarbon exploration drill holes and 88 diamond core potash exploration drill holes. Not all the drill holes considered for modelling of the JORC Inferred resource are located exclusively within the licence

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area. A total of 64 of the 92 Project drill holes are located outside and adjacent to the licence boundary (Figure 1), but sufficiently close such that they have been deemed to have a material impact on the geological modelling and mineral resource estimation process.

All samples for the JORC Inferred resource estimate were taken during historical drilling campaigns carried out predominantly during the 1960's and 1970's with eight holes drilled in the 1980’s and an additional 20 drill holes drilled between 1890‐1909 most of which were stopped before intersecting the potash horizon. Sample data exists from three hydrocarbon drill holes that were geophysically‐logged and 35 diamond core drill holes ('potash drill holes') that produced core samples.

All drill hole sampling was conducted according to the procedures and protocols as specified in Kali‐ Instruktion (1956 and 1960). Drill core samples were collected from all of the potash drill holes. Where possible, the K2O grade of the potash‐bearing horizons was historically determined on an empirical base using the correlation with the downhole natural gamma log. Samples were collected across all potash‐ bearing horizons and the total sampled length represents the total thickness of the potash‐bearing horizon of the z2KSt. In the potash drill holes, core sample thicknesses ranged from 0.18 m to 4.00 m. Over inhomogeneous potash horizons where interlayers of potential waste were included, the minimum sample thickness was 0.5 m and the maximum was 5 m. Samples were crushed to 2 mm in a jaw crusher and a representative sample was milled and crushed further to 50 μm. This sub‐sample was assayed by ICP‐OES for all elements except NaCl, which was analysed using potentiometric titration. XRD was used for mineralogy and thin sections were carried out at a local university.

Geology and modelling

The geological model and mineral resource estimation for the Nohra‐Elende sub‐area was conducted in Micromine®, a software package used for geologically modelling stratiform deposits. The database used to create the geological model and mineral resource estimate was created from the manual data entry of hard copy historical drill hole logs and exploration records.

The drill hole database was imported into Micromine® and validated. Validation checks undertaken included checking for missing samples, mismatching sample and stratigraphy intersections, duplicate records and overlapping from‐to depths. No mistakes in the database were identified. Once imported into Micromine®, geological interpretation was carried out in 2‐D cross‐sections and 3‐D downhole plots of lithology and grade. This process confirmed the correlating relationship between the drill hole logs and the geophysical logging as well as the stratigraphic‐hosted nature of the potash mineralisation. Micon also noted that in some instances the mineralisation zone containing grade goes above the z2KSt seam into the overlying Dechsteinsalz (zZNAr) as a result of alteration from ascending brines e.g. Kal Ele 19/1978.

The chemical database was first composited according to stratigraphy, which allowed the merging of the mineralogical and chemical data tables. The composited database was assigned a tag column to indicate if a sample was sylvinite or carnallite based on the mineralogical drill hole logging data and the chemical assay data.

Some drill holes did not have a full suite of chemical data, for example, a number of drill holes did not have assay results for MgSO4. In these instances, a length weighted average dummy value was assigned. Some drill holes had missing sample intervals such as Kal Ele 12/1977 which has 12 cm of unsampled material in between samples 29 and 30. In instances such as this Micon checked the stratigraphy file for any comments regarding core loss and ensured that the sequence was logged as the z2KSt. If the missing sample was less than 30cm a dummy sample value was inserted based on the results for the samples above and below the missing one.

The Nohra‐Elende database contains some drill holes with duplicated stratigraphy indicating faulting or folding. These were numbered according to elevation and cross‐sections drawn to determine which portion of the z2KSt would be used for modelling.

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Each drill hole was individually examined and, based on stratigraphy, sequence of mineralised seams and K2O composite grades, the sylvinite or carnallite seams were further divided into the Upper Sylvinite seam, Carnallitite seam and Lower Sylvinite seam. Micon created histograms of the K2O grade and thickness for each seam. The Carnallitite seam displays continuous grade but the thickness is more variable ranging from 0.5m to 63m and displays faulting. The Sylvinite seams have relatively consistent grade and thickness. No top cut was applied to any of the seam grades.

The database was composited again, this time by grade, using a minimum trigger of 5% K2O, a minimum grade length of 0.5 m, a maximum total length of waste of 2 m and a 1 m maximum consecutive length of waste.

Roof and floor grids were made for each of the four seams. The minimum and maximum X and Y origins used for gridding were 601233 (min X), 5690017 (min Y), 622433 (max X) and 5706817 (max Y). A grid cell size of 400 was used as this best fitted the data when correlated in cross‐section. An inverse distance squared gridding algorithm was used, with a circular search area and a 5,000 m search radius to cover the distance between data points, one sector and maximum 1 point per sector. The roof and floor grids were converted to wireframe surfaces (DTM).

In addition, Micon was provided with data for drill holes located in adjacent areas flanking the Project area of the Mühlhausen‐Nohra mining licence. The surfaces were cut according to the limits of the seams that extend outward of the Mühlhausen‐Nohra mining licence boundary. The surfaces were additionally cut to the licence boundaries forming a second set of DTM surfaces for analysis. Lastly, two sets of solid wireframes were created for the Upper Sylvinite seam, Carnallitite seam and Lower Sylvinite seam using the roof and floor surfaces. The first set of wireframes represents the total extent of potash mineralisation based on the complete set of data provided, while the second set of wireframes represents the potash seam mineralisation cropped by the Project licence boundary. A cross section of the resultant solid wireframes is shown in Figure 2 of JORC Table 1.

The final extents of the modelled Upper Sylvinite seam, Carnallitite seam and Lower Sylvinite seam is shown in Figure 3 in JORC Table 1. Interpreted faulting in the Nohra‐Elende sub‐area is shown on Figure 4 in JORC Table 1. Other smaller faults were also identified in the historical drill hole logs, but these have not had a material effect on the geological model and resource estimation. The faults will however, require further investigation and modelling as the Nohra‐Elende project progresses and before any ore reserves are estimated.

Mineral Resources

With the exception of a zone of halite in the north‐east of Nohra‐Elende, the potash deposit extends across the whole of the sub‐area and is known from additional drill holes to extend beyond the Davenport mining licence boundary. The mineral resources are divided into a northern area and southern area due to insufficient data to join the two (Figure 3 of JORC Table 1).

The mineral resources have been restricted by a total seam thickness (>1 m), grade (>5% K2O) and the licence area boundary.

The average thicknesses of the wireframes are:

  • Upper Sylvinite seam is 1.78 m;

  • Carnallitite seam is 26.06 m; and

  • Lower Sylvinite seam is 1.99 m.

The minimum depth from surface to the roof of the uppermost seam, the Upper Sylvinite seam, is ~447 m towards the north of the sub‐area and an average depth of ±615 m. The modelled seam package is sub‐horizontal with localised gentle undulations.

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A grade‐tonnage report was generated for the three seams using average densities obtained from historical records, specifically: 2.17 t/m³ for Upper Sylvinite seam, 1.90 t/m³ for the Carnallitite seam and 2.30 t/m³ for the Lower Sylvinite seam. The grades for each wireframe have been reported based on the modelled composited assay database, which were modelled using the same algorithm and parameters as the seam roof and floor surfaces. The modelled K2O grade and width of the composited potash seams and the depth of the Upper Sylvinite seam roof are indicated in Figures 5 to 7 in JORC Table 1.

The whole of the Nohra‐Elende sub‐area has been classified as an Inferred mineral resource, based on the quality and extents of the drilling database that are sufficient to imply geological grade and continuity for eventual economic extraction. The spacing between drill holes ranges from ±400 m to ±2,800 m. A 20% geological loss was applied to the modelled tonnage to take into consideration the Inferred category nature of the mineral resources and potential for discovery of localised structure and grade variation. Figure 3 in JORC Table 1 highlights the extents of the Inferred mineral resources.

The 6[th] November 2018 Inferred mineral resources for the Nohra‐Elende sub‐area are presented in Table 1.

Table 1: Nohra‐Elende Mineral Resources, November 2018 (JORC, 2012)

Seam JORC
Category
ρ
g/cm3
Geol Loss
(%)
Tonnage
(Mt)
K2O
(%)
K2O
(Mt)
Insols
(%)
Mg
(%)
Na
(%)
SO4
(%)
Upper
Sylvinite
Inferred 2.17 20 87 14.75 13 0.59 23.83 3.50 15.99
Lower
Sylvinite
Inferred 2.30 20 14 10.67 1 0.36 16.84 1.81 23.21
Sub‐Total
Sylvinite
101 14.19 14 0.56 22.87 3.27 16.98
Carnallitite 1,597 9.41 150 0.55 14.80 6.01 12.98
Sub‐Total
Carnallitite
Inferred 1.90 20 1,597 9.41 150 0.55 14.80 6.01 12.98
Total Nohra‐
Elende Sub‐
Area
Inferred 1,698 9.69 165 0.55 15.28 5.85 13.22

Notes:

  1. Mineral resources presented according to ore type (mineralogy) and not as per stratigraphy.

  2. Minimum seam thickness considered for resources is 1 m.

  3. Minimum cut‐off grade ≥5% K2O.

  4. 20% geological loss applied to account for potential unknown geological losses for Inferred resources.

  5. Data source: historical state records (BVVG) checked and verified.

  6. Inferred resources rounded down to nearest 100,000 t.

  7. Errors may exist due to rounding.

The total JORC‐compliant Inferred Resources declared by Micon as a result of modelling the drill hole data from Ebeleben, the Mühlhausen‐Keula and the Nohra‐Elende areas are shown in Table 2 below. Total resources held under the JORC 2012 Inferred category now stand at approximately 3.4 billion tonnes containing 358.8 Mt K2O. Davenport anticipates that this number will increase further before the end of the year with the completion of modelling work on the Küllstedt Exploration licence, and through exploration of the remaining licence areas.

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Table 2: Total JORC 2012 Inferred Resources to November 2018 held by Davenport.

Seam Tonnage
(Mt)
K2O
(%)
K2O
(Mt)
Sylvinite 324.0 15.6 50.4
Carnallitite 252.6 7.5 18.9
Total Ebeleben 576.6 12.1 69.3
Sylvinite 834.3 12.1 100.7
Carnallitite 295.8 8.2 24.2
Total Mühlhausen‐Keula 1,130.1 11.1 124.9
Sylvinite 101 14.19 14
Carnallitite 1,597 9.41 150
Total Nohra‐Elende 1,698 9.69 165
Total Davenport JORC Inferred Resources to Date 3,404.7 10.5 358.8

Ongoing & Future Work

Work is ongoing to review the historic drill hole data and technical reports from the Küllstedt Exploration Licence area with an aim to convert historic resources to JORC 2012 compliant resources. This work is scheduled for completion before the end of the year.

The next steps for Davenport are to upgrade JORC Inferred Resources to JORC Indicated Resources by carrying out confirmation and exploration drilling in selected target areas during early 2019. Davenport expects the number of drill holes required for this purpose will not exceed four. Progress is being made with local authorities and landowners to obtain permission to drill and a drilling contractor has been selected. Davenport expects to release an update on the preparations for drilling in the near future.

INVESTOR & MEDIA ENQUIRIES

Dr Chris Gilchrist ‐ Managing Director Davenport Resources Ltd +353 41 988 3409 +353 87 687 9886 [email protected]

David Tasker – Managing Director Chapter One Advisors +61 433 112 936 [email protected]

Paul Cahill ‐ Managing Director Bacchus Capital Advisers Ltd + 44 (0) 203 848 1643 [email protected]

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Competent Person Statement

Elizabeth de Klerk M.Sc., Pr.Sci.Nat., SAIMM., Micon’s Senior Geologist and Competent Person visited the South Harz Potash project from 12[th] to 16[th] February 2018 and 6[th] to 8[th] March 2018. During the initial site visit, the historical drilling area and laboratory facilities at K‐Utec Salt Technologies Ltd in Sondershausen were visited. The original drill hole logs, reports, maps and cross‐sections held in the Bodenverwertungs and verwaltungs GmbH (BVVG) archives in Berlin were also inspected. In addition, Mrs. de Klerk interviewed the Ercosplan team at their offices in Erfurt to understand how the data were used to compile an Excel database and generate an initial Exploration Target for Mühlhausen‐spelling. The second site visit involved more time spent at K‐Utec inspecting additional historical records for Mühlhausen‐Keula held in the archives at the offices of K‐Utec Salt Technologies Ltd in Sondershausen.

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Page 1 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource.

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JORC Code, 2012 Edition – Table 1

Nohra‐Elende Sub‐Area,

Mühlhausen‐Nohra Mining License

Davenport Resources Ltd

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 2 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

Davenport Resources Ltd

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Figure 1: Drill Hole Plan of the Nohra‐Elende and Mühlhausen‐Keula Sub‐Areas of the Mühlhausen‐Nohra Mining Licence

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 3 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

Davenport Resources Ltd

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Figure 2: NNW‐SSE Cross‐Section across the Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 4 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

Davenport Resources Ltd

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Figure 3: Drill Hole Plan and Wireframes of the Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 5 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

Davenport Resources Ltd

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Figure 4: Interpreted fault zones on the Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 6 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

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Figure 5: K2O Grade Distribution in the Combined Potash Seams, Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 7 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

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Figure 6: Thickness Distribution in the Combined Potash Seams, Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 8 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

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Figure 7: Upper Sylvinite Seam Roof Elevation, Nohra‐Elende Sub‐Area

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Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

Page 9 of 32 of JORC Code, 2012 Edition Table 1 Nohra‐Elende Sub‐Area Resource

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Section 1 Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections.)

Criteria JORC Code explanation Commentary
Sampling
techniques
Nature and quality of sampling
(eg cut channels, random chips,
or specific specialised industry
standard measurement tools
appropriate to the minerals
under investigation, such as
down hole gamma sondes, or
handheld XRF instruments, etc).
These examples should not be
taken as limiting the broad
meaning of sampling.
All samples were taken during historical drilling
campaigns predominantly carried out during the
1960's and 1970's with eight holes drilled in the
1980’s and an additional 20 drill holes drilled between
1890‐1909 most of which were stopped before
intersecting the z2KSt horizon. Sample data exists
from three hydrocarbon drill holes that were
geophysically logged and 35 diamond core drill holes
('potash drill holes') that produced core samples.
Include reference to measures
taken to ensure sample
retrospectivity and the
appropriate calibration of any
measurement tools or systems
used.
Information about the calibration of the geophysical
downhole tools is not available. Core recovery logs
were kept for the core drill holes, showing
measurements taken by the drillers and geologists,
which were checked and correct against the
geophysical logs.
Aspects of the determination of
mineralisation that are Material
to the Public Report.
In cases where ‘industry
standard’ work has been done
this would be relatively simple
(eg ‘reverse circulation drilling
was used to obtain 1 m samples
from which 3 kg was pulverised
to produce a 30 g charge for fire
assay’). In other cases more
explanation may be required,
such as where there is coarse
gold that has inherent sampling
problems. Unusual commodities
or mineralisation types (eg
submarine nodules) may
All drill hole sampling was conducted according to the
Kali‐Instruktion (1956 and 1960). No core samples
were taken from the hydrocarbon drill holes. Core
samples were taken from 35 of the potash drill holes.
Where possible, the K2O grade of the potash‐bearing
horizons was determined on an empirical base using
the correlation with the downhole natural gamma log.
Samples were taken across all potash‐bearing
horizons and the total sampled length represents the
total thickness of the potash‐bearing horizon of the
z2KSt. In the potash drill holes, core sample thickness
ranges from 0.18 m to 4.00 m. Over inhomogeneous
potash horizons where interlayers of potential waste
were included, the minimum sample thickness was
0.5 m and the maximum was 5 m. Samples were
crushed to 2 mm in a jaw crusher and a
representative sample was milled and crushed further
to 50 μm which was assayed by Induced Coupled
Plasma Optical Omission Spectrometry (ICP‐OES) for
all elements except NaCl which was tested using
potentiometric titration. X‐RayDiffraction(XRD)was

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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warrant disclosure of detailed
information.
used for mineralogy and thin sections were carried
out at a local university.
Drilling
techniques
Drill type (eg core, reverse
circulation, open‐hole hammer,
rotary air blast, auger, Bangka,
sonic, etc) and details (eg core
diameter, triple or standard
tube, depth of diamond tails,
face‐sampling bit or other type,
whether core is oriented and if
so, by what method, etc).
The 88 cored potash drill holes were drilled using a
Type C 1500 rig in the 1960s, and T50A and Sif 1200
rigs in the 1980s producing core with diameters of
108 mm and 65 mm respectively. The four
hydrocarbon drill holes were drilled using T‐50, BU‐40
and BU‐75 rigs producing core with diameters of 114
mm, 118 mm, 143 mm and 193 mm. All drill holes
were drilled vertically with minor deviations in some
drill holes at depth. Drilling from surface used tricone
bits through the overburden and upper stratigraphy,
switching to core through the potash‐bearing
horizons to the end of hole (EOH). Clay mud was used
as the drilling fluid through the overburden sections
in potash drill holes and a NaCl‐saturated drilling fluid
was used through the salt horizons. Casing was used
through the overburden.
Drill sample
recovery
Method of recording and
assessing core and chip sample
recoveries and results assessed.
It is apparent that the core recovery was monitored
by the project geologist on site at the time of drilling
and this recorded in the historical logs. From the data
available, which is not easily interpreted, the core
recoveries appear satisfactory (approx. 97%).
Lithological and stratigraphic intersections were
subsequently corrected using the geophysical logging
results.
Measures taken to maximise
sample recovery and ensure
representative nature of the
samples.
Information about maximising sample recovery is not
currently known, but may be available in historical
German documents.
Whether a relationship exists
between sample recovery and
grade and whether sample bias
may have occurred due to
preferential loss/gain of
fine/coarse material.
Sampling was conducted according to the
stratigraphic interpretation of the core using the
downhole geophysical logging as a depth guide. Axial
drilling into the drill core with a spiral drill was
conducted to contain pulverised material for chemical
and mineralogical analysis.
Logging Whether core and chip samples
have been geologically and
geotechnically logged to a level
of detail to support appropriate
Mineral Resource estimation,
Core samples were geologically logged in detail and
full and summary drill hole logs were produced in
both written and graphical format. Information
recorded on the drill hole logs included lithological
depths, stratigraphic interpretation, and sampling
information.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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mining studies and
metallurgical studies.
Whether logging is qualitative
or quantitative in nature. Core
(or costean, channel, etc)
photography.
Full drill hole logs include a detailed lithological
description of the entire drill hole, which was also
summarised and graphically portrayed alongside the
downhole geophysical logging and assay results. Logs
are available for 58 drill holes and geophysical logs
are available for 15 drill holes, mostly made up of
calliper and natural gamma. Geophysical logging
speed is recorded as 2.5 m/min and 7 m/min.
The total length and percentage
of the relevant intersections
logged.
The complete core intersection was logged on a
millimetre scale.
Sub‐
sampling
techniques
and sample
preparation
If core, whether cut or sawn and
whether quarter, half or all core
taken.
Axial drilling into the drill core with a spiral drill was
conducted to obtain pulverised material for chemical
and mineralogical analysis.
If non‐core, whether riffled,
tube sampled, rotary split, etc
and whether sampled wet or
dry.
Not applicable.
For all sample types, the nature,
quality and appropriateness of
the sample preparation
technique.
All drill‐hole sampling was conducted according to the
Kali‐Instruktion (1956 and 1960).
Quality control procedures
adopted for all sub‐sampling
stages to maximise
representivity of samples.
Samples were homogenised to ensure a
representative sample was assayed (see section
above on sampling).
Measures taken to ensure that
the sampling is representative
of the in situ material collected,
including for instance results for
field duplicate/second‐half
sampling.
No field duplicates were taken. Thicknesses of the
potash‐bearing horizons were confirmed by the
geophysical logging and the full length of the potash
was sampled.
Whether sample sizes are
appropriate to the grain size of
the material being sampled.
Sample sizes are considered appropriate to the
material being sampled, which is bulk mineralisation.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Quality of
assay data
and
laboratory
tests
The nature, quality and
appropriateness of the assaying
and laboratory procedures used
and whether the technique is
considered partial or total.
Samples were sent to the VEB Kombinat Foundation
of Potash Research Institute, now known as K‐Utec
AG Salt Technologies. Samples were assayed by ICP‐
OES for all elements except NaCl which was tested
using potentiometric titration.
For geophysical tools,
spectrometers, handheld XRF
instruments, etc, the
parameters used in determining
the analysis including
instrument make and model,
reading times, calibrations
factors applied and their
derivation, etc.
This information is not currently known, but may be
available in untranslated historical German
documents.
Nature of quality control
procedures adopted (eg
standards, blanks, duplicates,
external laboratory checks) and
whether acceptable levels of
accuracy (ie lack of bias) and
precision have been established.
Quality control was insured by technical
representatives from several state institutions at the
time who checked the sampling procedures and
laboratory results.
Verification
of sampling
and assaying
The verification of significant
intersections by either
independent or alternative
company personnel.
For all exploration work conducted post‐1950, quality
assurance and quality control (QAQC) procedures
performed at Mühlhausen‐Nohra was conducted by
independent state institutions and quality checked by
VEB Kombinat Kali company professionals. Detailed
information regarding the cross‐check analysis that is
reported to have occurred on the Mühlhausen drill‐
hole data is not currently available to Micon and may
exist in the archives in Germany.
The use of twinned holes. No twin drilling has taken place.
Documentation of primary data,
data entry procedures, data
verification, data storage
(physical and electronic)
protocols.
Original drill‐hole logs were recorded on paper, using
a combination of handwritten and typed records.
Copies of the drill‐hole logs (including the summary
logs and geophysical logging etc) were distributed to
several institutions around Germany, including BVVG,
Ercosplan and K‐Utec, many of which are still stored
in the archives and available for review. The header
for each drill‐hole lists have not all been located, but
those that are have been were reviewed in person by
Micon and Davenport. No original drill core or sample
pulps are still available.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Discuss any adjustment to assay
data.
Assay data was not adjusted in any way. K2O grades
for the hydrocarbon drill holes were interpreted from
the natural gamma logs.
Location of
data points
Accuracy and quality of surveys
used to locate drill holes (collar
and down‐hole surveys),
trenches, mine workings and
other locations used in Mineral
Resource estimation.
Drill‐hole collars were surveyed by the state surveyor
subsequent to drilling and given with centimetre to
decimetre accuracy. Records of collar positions were
obtained from drill‐hole logs and state archives.
Specification of the grid system
used.
Drill‐hole coordinates were recorded in local a
German coordinate system, which is a 3‐degree Gaus
Kruger zone 4 projection with a DHDN datum and an
East Germany local transformation to 2 m (EPSG‐Code
31, 468). For the purposes of this resource estimation
the coordinates have been converted to UTM Zone 32
North.
Quality and adequacy of
topographic control.
No topographic survey exists for the project area,
which is flat lying to gently undulating.
Data spacing
and
distribution
Data spacing for reporting of
Exploration Results.
The drill‐hole spacing in the Nohra‐Elende sub‐area
ranges from ±400 m to ±2,800 m.
Whether the data spacing and
distribution is sufficient to
establish the degree of
geological and grade continuity
appropriate for the Mineral
Resource and Ore Reserve
estimation procedure(s) and
classifications applied.
The spacing of drill holes and samples is considered
sufficient to imply geological and grade continuity
based on information obtained from historical drill
holes and samples.
Whether sample compositing
has been applied.
Samples were not composited prior to laboratory test
work.
Orientation
of data in
relation to
geological
structure
Whether the orientation of
sampling achieves unbiased
sampling of possible structures
and the extent to which this is
known, considering the deposit
type.
All drill holes are vertical with only minor deviations at
depth as discussed above. The potash‐bearing
horizons are horizontal with only minor gentle
undulations and the sample thicknesses are
considered to represent true thickness without
requiring correction.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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If the relationship between the
drilling orientation and the
orientation of key mineralised
structures is considered to have
introduced a sampling bias, this
should be assessed and
reported if material.
The potash seam at Nohra‐Elende is horizontal to sub‐
horizontal and all thicknesses from the vertical drill
holes have been treated as true thickness.
Sample
security
The measures taken to ensure
sample security.
No information is available about sample security,
although it is noted that the historical drilling
programmes were conducted with a very high level of
technical capability with experienced geologists and
drillers. The laboratory used (K‐Utec) is regarded as
one of the most experienced salt technological
facilities in the world.
Audits or
reviews
The results of any audits or
reviews of sampling techniques
and data.
Original analytical results retained in the K‐Utec
archives were reviewed where possible and compared
with historical records stored at the BVVG archives.
No original core or sample material is available,
however, the available data is of sufficient quality to
support an Inferred Resource.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Section 2 Reporting of Exploration Results

Criteria listed in the preceding section also apply to this section.)

Criteria JORC Code explanation Commentary
Mineral
tenement and
land tenure
status
Type, reference name/number,
location and ownership including
agreements or material issues
with third parties such as joint
ventures, partnerships,
overriding royalties, native title
interests, historical sites,
wilderness or national park and
environmental settings.
Davenport Resources Limited is a publicly listed
company on the Australian Securities Exchange
and holds the Mühlhausen‐Nohra mining
licences through its wholly owned subsidiary
East Exploration GmbH. The Mühlhausen‐
Nohra mining licence is located within the
South Harz Potash District of the Thuringian
Basin, Germany.
The security of the tenure held at
the time of reporting along with
any known impediments to
obtaining a licence to operate in
the area.
There are no known impediments to the
security of the tenure that Davenport have over
the Mühlhausen‐Keula sub‐area. The
Mühlhausen‐Nohra mining licence is perpetual
in nature, not subject to expiry and is valid to
explore for and produce ‘potash, including
(associated) brine’ with no applicable statutory
royalties. The Mühlhausen‐Nohra Mining
Licence Deed No. is 1077/95‐611 and has an
area of 141.6049 km2
Exploration
done by other
parties
Acknowledgment and appraisal
of exploration by other parties.
All of the exploration conducted on the Nohra‐
Elende sub‐area is historical. The first recorded
evidence of exploration drilling on the
Mühlhausen‐Nohra mining licence is from drill
hole Kal Moerb 1/1889, drilling of which
commenced in 1889, following the completion
of which a further 19 drill holes were drilled
between the 1890s to 1909. All of the other
exploration drilling was conducted by the
former GDR. Various parties were involved,
most of which combined to form VEB
Kombinant after reunification.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
Geology Deposit type, geological setting
and style of mineralisation.
The Mühlhausen‐Nohra mining licence is
located in the Südharz (South Harz) Potash
District in the north‐western extent of the
Thuringian sedimentary basin, which has been
separated by the uplift of the northerly Harz
Mountains from the South Permian Basin (SPB).
The regional stratigraphy of the South Permian
Basin is fairly well understood with a pre‐
Variscan basement (Upper Carboniferous and
older rocks) and a transition horizon of Upper
Carboniferous to Lower Permian lying beneath
an expansive sequence of evaporite rocks of
the Upper Permian succession. These
evaporite deposits are assigned to the
Zechstein Group, and host the target potash
mineralisation of the South Harz Potash District
which occurs on the Mühlhausen‐Keula mining
licence. The potash‐bearing target Zechstein
Group consists of seven depositional cycles
with the potash mineralisation of the South
Harz Potash District hosted within the second
cycle, the Staßfurt Formation (Z2). The Z2 is
further sub‐divided into horizons, of which the
Kaliflöz Staßfurt (z2KSt) hosts potentially
economic potash. The z2KSt is split into a
Hanging Wall Group that has 11 to 19 horizons
of finely layered potassium salts and a Footwall
Group that has 1 to 10 coarsely layered
potassium salts and thick halite layers. The
z2KSt is present across the whole of Nohra‐
Elende sub‐area and has an average thickness
of 21.8 m. The main mineral present on Nohra‐
Elende is carnallite with additional sylvite. In
the Nohra‐Elende sub‐area there is often
elevated kieserite associated with carnallitite,
which drops off in content towards the base of
the carnallitite layer. Kieserite especially high in
Kal Pstl 001/1960.
Drill hole
Information
A summary of all information
material to the understanding of
the exploration results including
a tabulation of the following
The drill hole database for Nohra‐Elende is
made up of 92 historical drill holes. A table
showing the key drill hole information can be
found below:

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation JORC Code explanation JORC Code explanation Commentary Commentary

information for all Material drill
holes:
Hole ID Location Easting
(UTM
32N)
Northing
(UTM
32N)
RL EOH
(m)
z2
Interse
KSt
ction (m)
Width
(m)
Average
K2O
Grade
(%)
From To
E BtrWr 1/1963 Off Licence 602132.00 5694538.00 272.70 534.70 Not int ersected
E Hzl 3/1970 Off Licence 612262.00 5688494.00 418.80 1094.00 993.00 1011.00 18.00 8.46
E Hzl 4/1970 Off Licence 613201.00 5688890.00 416.20 1117.30 974.00 982.00 8.00 12.25
E Hzl 5/1971 Off Licence 614858.00 5689968.00 406.20 1152.50 983.00 1040.00 57.00 8.72
Kal Aso 1a/1957 Off Licence 604005.00 5697241.00 312.00 700.00 624.45 939.80 4.20 9.48
Kal Bhl 3/1960 Off Licence 602750.00 5698813.00 359.00 764.30 746.60 762.65 8.95
Kal Blei 001/1893 Off Licence 611526.00 5702281.00 235.00 540.78 No data
Kal BtrWr 1961 Off Licence 602960.00 5694187.00 341.30 594.00 520.33 540.30 19.97
Kal Bwo 3 Off Licence 600810.00 5697180.00 281.86 419.61 Stopped short
Kal Ele 01/1894 Off Licence 613062.00 5699233.00 245.00 700.00 596.00 652.50 7.00 10.70
Kal Ele 09/1978 Off Licence 612707.00 5698514.00 260.90 714.15 678.90 691.41 0.45 11.02
Kal Ele 10/1978 Off Licence 611931.00 5698010.00 261.30 643.70 618.10 621.60 2.50 8.69
Kal Ele 11/1977 Licence 614434.00 5701241.00 216.40 496.54 446.87 471.82 24.95 11.41
Kal Ele 12/1977 Licence 615961.00 5700352.00 214.20 588.24 535.55 566.77 31.22 8.60
Kal Ele 13/1978 Licence 613768.00 5698691.00 289.40 745.63 716.87 725.74 8.87 12.84
Kal Ele 14/1977 Licence 614586.00 5699497.00 246.80 665.00 619.25 640.62 21.37 9.98
Kal Ele 15, 5a/1978 Licence 615030.00 5698261.00 302.10 766.73 670.55 751.36 80.81 9.05
Kal Ele 16/1978 Off Licence 613960.00 5697795.00 311.90 786.82 630.30 686.50 56.20 11.19
Kal Ele 17/1978 Licence 613151.00 5697791.00 313.30 785.09 692.85 770.79 77.94 9.54
Kal Ele 18/1978 Off Licence 611127.00 5697137.00 279.50 715.23 No data
Kal Ele 19/1978 Licence 615664.00 5699809.00 258.30 664.92 481.45 505.80 24.35 9.48
Kal Fef /019 Off Licence 601433.00 5694905.00 264.00 487.00 Stopped short
Kal Frod Off Licence 608842.00 5695021.00 443.00 836.90 No data
Kal Gte 001/1961 Off Licence 603672.00 5692037.00 307.40 560.10 528.24 538.43 10.19
Kal HrdeHl 001/1896 Licence 617573.00 5698037.00 240.00 797.50 621.00 654.35 33.35 11.55
Kal HrdeHl 002 Off Licence 617790.00 5696895.00 270.90 754.00 No data
Kal HrdeHl 002/1897 Licence 617533.00 5698035.00 240.00 462.52 Stopped short
Kal HrdeHl 003/1897 Licence 617493.00 5698023.00 240.00 463.36 Stopped short
Kal HrdeHl 003/1899 Off Licence 618476.00 5697723.00 245.70 730.30 No data
Kal HrdeHl 004/1897 Licence 617502.00 5698064.00 240.00 462.31 Stopped short
Kal Hyo 2 Off Licence 600607.00 5698629.00 313.33 686.89 No data
Kal Hyo 4/1961 Off Licence 600258.00 5699218.00 340.64 728.00 674.30 694.63 0.44 14.35

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation JORC Code explanation Commentary Commentary Commentary
Kal Hzl 1/1961 Off Licence 610548.00 5688466.00 412.30 1033.80 963.27 983.78 0.53 11.92
Kal Keh 010/1977 Off Licence 614132.00 5702958.00 244.90 465.79 420.00 443.85 12.05 9.53
Kal Keh 011/1977 Licence 615876.00 5702682.00 287.40 535.37 480.65 507.15 26.50 8.38
Kal Keh 113/1988 Off Licence 612925.00 5702879.00 229.50 528.91 No data
Kal Keh 114/1989 Off Licence 612942.00 5702868.00 229.50 534.00 No data
Kal Keh 1218/1988 Off Licence 614476.00 5703385.00 245.30 457.75 No data
Kal Keh 1519/1988 Off Licence 614796.00 5703566.00 280.20 508.87 No data
Kal Keh 1718/1986 Off Licence 614849.00 5703818.00 265.10 499.65 No data
Kal Keh 2112/1987 Off Licence 614757.00 5704496.00 273.20 435.70 386.51 419.03 7.83
Kal Keh 2509/1988 Off Licence 614934.00 5704970.00 239.00 374.72 Stopped short
Kal Kndr 001/1959 Licence 617133.00 5699714.00 215.78 591.80 515.22 550.20 34.98 9.40
Kal Kwd 001 Off Licence 615700.00 5697590.00 291.80 830.40 No data
Kal Kwd 002 Off Licence 615707.00 5697660.00 290.00 536.60 Stopped short
Kal Kwd 003 Off Licence 615712.00 5697780.00 285.00 530.50 Stopped short
Kal Kwd 004 Off Licence 615719.00 5697851.00 279.70 521.60 Stopped short
Kal Lud /008 Off Licence 616368.00 5693735.00 365.00 901.60 No data
Kal Lud 003/1905 Off Licence 616285.00 5693312.00 354.00 762.20 No data
Kal Lud 007 Off Licence 617529.00 5697144.00 265.20 521.10 Stopped short
Kal Lud 010 Off Licence 617402.00 5697329.00 270.80 528.60 Stopped short
Kal Lud 011/1909 Off Licence 618389.00 5697625.00 249.90 485.80 Stopped short
Kal Mda 4/1984 Off Licence 608233.00 5688437.00 388.60 933.86 866.00 875.71 9.71 18.92
Kal Mlra 001/1899 Licence 616563.00 5698025.00 256.64 680.00 619.25 666.30 47.05 12.63
Kal Moerb 002/1890 Off Licence 617983.00 5700975.00 218.00 310.50 Stopped short
Kal Moerb 004/1894 Off Licence 617981.00 5701495.00 218.00 527.00 No data
Kal Moerb 005/1894 Off Licence 617982.00 5700995.00 218.00 617.26 Stopped short
Kal Moerb 1/1889 Licence 618005.00 5700926.00 230.00 316.05 Stopped short
Kal Moerb 3/1890 Licence 618007.00 5700876.00 218.00 316.74 Stopped short
Kal Nga 001/1895 Off Licence 610701.00 5697765.00 240.00 740.00 No data
Kal Nga 002/1895 Off Licence 610722.00 5697736.00 240.00 480.10 Stopped short
Kal Nga 003/1896 Off Licence 610753.00 5697717.00 240.00 479.81 Stopped short
Kal NohNo 007/1960 Off Licence 617175.00 5701380.00 240.73 586.00 459.42 475.10 15.68
Kal NohNo 010/1978 Licence 616651.00 5699606.00 246.40 651.85 507.40 556.25 48.85 14.65
Kal NohNo 011/1978 Licence 616101.00 5698535.00 242.30 815.59 641.23 695.97 54.74 9.32
Kal NohNo 012/1978 Licence 617596.00 5698657.00 249.00 744.75 712.63 719.10 6.47 11.41
Kal NohNo 013/1978 Off Licence 617430.00 5697494.00 263.00 685.00 646.70 665.64 0.32 9.45
Kal NohNo 014/1978 Licence 618801.00 5698291.00 236.20 661.95 582.96 606.80 23.84 9.55
Kal NohNo 015/1978 Off Licence 620231.00 5697662.00 244.50 634.30 Not int ersected
Kal NohNo 016/1978 Off Licence 619302.00 5697001.00 288.10 816.23 776.40 807.46 0.81 8.24

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation JORC Code explanation JORC Code explanation Commentary Commentary Commentary Commentary Commentary Commentary Commentary Commentary
Kal NohNo 017/1979 Licence 618526.00 5699186.00 213.00 679.90 590.75 654.53 63.78 8.91
Kal NohNo 9/1960 Off Licence 617114.00 5702893.00 283.80 530.80 476.90 493.55 4.80
Kal NSo 1 Licence 605661.00 5693297.00 328.40 686.70 643.10 664.60 21.50 10.93
Kal NSo 2 Licence 608745.00 5694088.00 428.00 850.00 819.00 830.00 11.00 11.08
Kal NSo 3 Licence 606232.00 5692800.00 366.80 742.82 660.33 701.23 40.90 10.56
Kal NSo 4 Off Licence 613339.00 5693671.00 335.00 684.75 Stopped short
Kal NSo 5 Off Licence 613353.00 5693592.00 335.00 685.00 Stopped short
Kal NSo 6 Off Licence 611641.00 5692641.00 350.00 661.90 Stopped short
Kal NSo 7 Off Licence 605204.00 5693468.00 328.10 460.14 Stopped short
Kal NSo 8/1907 Off Licence 611692.00 5692613.00 350.00 856.60 814.98 850.70 35.72 10.22
Kal Oga 002/1902 Off Licence 610336.00 5696156.00 320.07 717.30 No data
Kal Probekandidat Off Licence 605373.00 5694956.00 275.20 591.14 No data
Kal Pstl 001/1960 Licence 615176.00 5700496.00 216.76 581.30 568.50 579.00 10.50 9.27
Kal Pstl 002/1960 Licence 615683.00 5701859.00 241.00 616.00 526.45 543.10 16.65 7.94
Kal SosNo 001/1903 Off Licence 607943.00 5695972.00 311.00 651.30 No data
Kal Vll 1/1961 Off Licence 604761.00 5691417.00 361.01 672.10 608.32 638.43 1.61 9.87
Kal Wipp 1/1955 Licence 614352.00 5702110.00 223.70 574.40 479.15 500.70 21.55 8.28
Kal Wr 10 Off Licence 601999.00 5696488.00 266.50 533.00 No data
Kal Wsbn 2/1960 Off Licence 620984.00 5699620.00 207.73 602.00 Not intersected
Kal Wsbn 3/1959 Licence 619354.00 5699001.00 214.67 493.80 469.88 470.42 0.54 7.20
Kal Wsbn 4/1960 Off Licence 619597.00 5700305.00 223.29 535.80 Halite noted in lith log
Kal Wueg 001/1956 Off Licence 605287.00 5696437.00 253.60 597.40 No data
Data
aggregation
methods






In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum
grade truncations (eg cutting of
high grades) and cut‐off grades
are usually Material and should
be stated.
The chemical analysis for Mühlhausen‐Keula
was composited according to stratigraphy
(z2KSt). A minimum cut‐off grade of 5% K2O
was applied to delineate the limits of the
potash‐bearing horizon within the z2KSt. A
weighted average K2O grade for each drill hole
was calculated against sample length with a 2
m minimum grade length, a 2 m maximum total
length of waste and a 1 m maximum
consecutive length of waste allowed.






Where aggregate intercepts
incorporate short lengths of high
grade results and longer lengths
of low grade results, the
procedure used for such
aggregation should be stated
and some typical examples of
Waste was included in the grade composite
with a 2 m maximum total length of waste and
a 1 m maximum consecutive length of waste
allowed.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
such aggregations should be
shown in detail.
The assumptions used for any
reporting of metal equivalent
values should be clearly stated.
No metal equivalents were used or reported.
Relationship
between
mineralisation
widths and
intercept
lengths
These relationships are
particularly important in the
reporting of Exploration Results.
All drill holes are vertical with only minor
deviations at depth as discussed above. The
potash‐bearing horizons are horizontal with
only minor gentle undulations and the sample
thicknesses are considered to represent true
thickness without requiring correction.
If the geometry of the
mineralisation with respect to
the drill‐hole angle is known, its
nature should be reported.
If it is not known and only the
down hole lengths are reported,
there should be a clear
statement to this effect (eg
‘down hole length, true width not
known’).
Diagrams Appropriate maps and sections
(with scales) and tabulations of
intercepts should be included for
any significant discovery being
reported These should include,
but not be limited to a plan view
of drill‐hole collar locations and
appropriate sectional views.
Diagrams included in the body of the report.
Balanced
reporting
Where comprehensive reporting
of all Exploration Results is not
practicable, representative
reporting of both low and high
grades and/or widths should be
practiced to avoid misleading
reporting of Exploration Results.
All available drill hole information was used.
Mühlhausen‐Keula has been reported as a
mineral resource, see Section 3 of Table 1.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
Other
substantive
exploration
data
Other exploration data, if
meaningful and material, should
be reported including (but not
limited to): geological
observations; geophysical survey
results; geochemical survey
results; bulk samples – size and
method of treatment;
metallurgical test results; bulk
density, groundwater,
geotechnical and rock
characteristics; potential
deleterious or contaminating
substances.
As well as the potash and hydrocarbon drill
hole information described above,
hydrogeological, geotechnical and seismic
studies have also been conducted on Nohra‐
Elende. The details and results of these
projects are written up in the historical
archived reports and have not been reviewed
by the author as they require translation into
English.
Further work The nature and scale of planned
further work (eg tests for lateral
extensions or depth extensions or
large‐scale step‐out drilling).
The current mineral resources are split into two
areas of the Nohra‐Elende sub‐area within the
Mühlhausen‐Nohra mining licence. The mineral
resource areas are divided by a portion of
ground that has insufficient drill hole data to
declare a resource. Future work should include
increasing confidence in the gap as well as
three twin drill holes to confirm the historical
grades, possibly accompanied by a seismic
survey or a detailed review of the results of the
historical seismic survey.
Diagrams clearly highlighting the
areas of possible extensions,
including the main geological
interpretations and future drilling
areas, provided this information
is not commercially sensitive.
At this stage of the project the focus is on
increasing confidence and not area of the
resource. Positions of suggested holes to be
twinned are shown on Figure 3 above.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Section 3 Estimation and Reporting of Mineral Resources

(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)

Criteria JORC Code explanation Commentary
Database
integrity
Measures taken to ensure that
data has not been corrupted by,
for example, transcription or
keying errors, between its initial
collection and its use for Mineral
Resource estimation purposes.
The database used to create the geological model
and mineral resource estimation was created
from manual data entry of hard copy historical
drill‐hole logs and exploration records. The Excel
database was cross‐checked against the original
drill‐hole logs in the BVVG and K‐Utec archives in
Berlin and Sondershausen respectively.
Data validation procedures used. When the Excel database is imported into
Micromine® modelling software, a data validation
exercise is run that includes checking for missing
samples, mis‐matching samples and stratigraphy
intersections, duplicate records and overlapping
from‐to depths. In addition, and where possible
the sum of chemical compounds was checked to
ensure a total of 100%.
Site visits Comment on any site visits
undertaken by the Competent
Person and the outcome of those
visits.
The Competent Person visited Muhlhausen‐Keula
on two occasions and incorporated visits to the
archives of BVVG and K‐Utec and the surrounding
area where there are currently operating and now
dormant Potash mines. The dates for the two site
visits are 12th‐15thFebruary 2018 and 6th‐ 8th
March 2018.
If no site visits have been
undertaken indicate why this is the
case.
Not applicable
Geological
interpretation
Confidence in (or conversely, the
uncertainty of ) the geological
interpretation of the mineral
deposit.
The confidence in the data used and geological
interpretation of the potash deposit is high due to
the strict guidelines followed during the historical
exploration and adherence to the
Kali‐Instruktion. In addition, the geological
interpretation was checked by several geologists
during both the 1960s and 1970s drilling
campaigns. Lastly, the depths recorded in the
lithological descriptions and geophysical logs
correspond, providing confidence in the
continuity of the potash horizons and grade.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
Nature of the data used and of any
assumptions made.
Since there are no records about some of the
sampling protocols and sample security,
assumptions have been made that this was done
to a high standard based on the historical records.
Due to the historical nature of the data, it is
sometimes unclear which is the final version of
the drill‐hole log and this forms part of the
ongoing work that will be required to increase
confidence in the resources.
The effect, if any, of alternative
interpretations on Mineral
Resource estimation.
The historical resource estimation carried out in
the 1908’s by the VEB Untergrundspeicher
Mittenwalde covered an area of 26.5 km2 and
considered selective solution mining of the
carnallitite with no Hartsalz or sylvinite resources.
The use of geology in guiding and
controlling Mineral Resource
estimation.
The mineralisation is confined to the z2KSt
horizon and this was used as the initial basis for
geological modelling prior to applying cut‐off
grades.
The factors affecting continuity
both of grade and geology.
Some of the drill holes have a duplication of the
z2KSt horizon that suggests there is some
localised folding and/or faulting. This can only be
tested when horizontal drilling can be done from
underground and face mapping.
Dimensions The extent and variability of the
Mineral Resource expressed as
length (along strike or otherwise),
plan width, and depth below
surface to the upper and lower
limits of the Mineral Resource.
The economic potash deposit covers the whole of
the Nohra‐Elende sub‐area contained by the
Mühlhausen‐Nohra mining licence with the
exception of two zones of halite on to the north
east and none to the south west. The mineral
resource has been restricted by seam thickness
(>1 m) and grade (>5% K2O). The total mineral
resource area for the Nohra‐Elende sub‐area is
approximately 40.4 km2and the total Inferred
Mineral Resources tonnage is 1.69 Mt. The
minimum depth from surface to the roof of the
uppermost seam, the Upper Sylvinite seam, is
±500 m towards the north of the sub‐area and the
average depth is 615 m.
Estimation
and modelling
techniques
The nature and appropriateness of
the estimation technique(s)
applied and key assumptions,
including treatment of extreme
The geological model and resource estimation for
Nohra‐Elende was carried out in Micromine®
modelling software, which is internationally
recognised software used for modelling stratiform

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
grade values, domaining,
interpolation parameters and
maximum distance of
extrapolation from data points. If
a computer assisted estimation
method was chosen include a
description of computer software
and parameters used.
deposits. The chemical database was first
composited according to stratigraphy. The
composited database was assigned a tag column
to indicate if a sample was sylvite or carnallite
based on the mineralogical data. Where some
chemical data was missing, for example a number
of drill hole did not have MgSO4, a length
weighted average dummy value was assigned.
For missing KCl values, the K2O was divided by
0.63. This database was composited using a
minimum trigger of 5% K2O, a minimum grade
length of 2 m, maximum total length of waste of 2
m and a 1 m maximum consecutive length of
waste. Each drill hole was then examined and,
based on stratigraphy, sequence of mineralised
layers and K2O composite grades, the sylvinite or
carnallitite seams were further divided into the
Upper Sylvinite seam, the Carnallitite seam and
the Lower Sylvinite seam. Roof and floor grids
were made for each of the four distinguished
seams. The minimum and maximum X and Y
origins used for gridding were 601233 (min X),
5690017 (min Y), 622433 (max X) and 5706817
(max Y). A grid cell size of 400 was used as this
best fitted the data when correlated in cross‐
section. An inverse distance squared gridding
algorithm was used, with a circular search area
and a 5,000 m search radius to cover the distance
between data points, one sector and maximum 1
point per sector. The roof and floor grids were
converted to wireframes surfaces and then DTM
surfaces for analysis. Lastly, two sets of solid
wireframes were created for Upper Sylvinite
seam, the Carnallitite seam and the Lower
Sylvinite seam using the roof and floor surfaces.
The first set of wireframes represents the total
extent of potash mineralisation based on
complete set of data provided and the second set
of wireframes represents the potash seam
mineralisation cropped by the project licence
boundary.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
The availability of check estimates,
previous estimates and/or mine
production records and whether
the Mineral Resource estimate
takes appropriate account of such
data.
An historical Kali‐Instruktion balanced C2 reserve
and a JORC Exploration Target exists for Nohra‐
Elende. Both are comparable to the current
Inferred resource grade, however, the resource
tonnages differ due to different resource areas.
The assumptions made regarding
recovery of by‐products.
No assumptions have been made regarding by‐
products, there is minor kieserite, but this has not
been estimated at this stage.
Estimation of deleterious elements
or other non‐grade variables of
economic significance (eg sulphur
for acid mine drainage
characterisation).
The insoluble content has been reported for
purposes of metallurgical processing review and is
not considered to be significant.
In the case of block model
interpolation, the block size in
relation to the average sample
spacing and the search employed.
A block model was not created.
Any assumptions behind modelling
of selective mining units.
No selective mining units were modelled. The
resource was modelled according to sylvite and
carnallite so the low grade and high grade areas
can be distinguished.
Any assumptions about correlation
between variables.
Not applicable.
Description of how the geological
interpretation was used to control
the resource estimates.
The geological model was first constrained to the
z2KSt horizon and then the mineralogical data
was used to split this into the upper/lower sylvite
and carnallitite seams. No structural blocks have
been defined, but future modelling will have to
consider the upthrown fault block in the north of
the area.
Discussion of basis for using or not
using grade cutting or capping.
A minimum cut‐off grade of 5% K2O was used as
this is considered economic. No top cut was
applied as the statistical analysis of the data
shows a normal distribution with no outlying
populations.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
The process of validation, the
checking process used, the
comparison of model data to drill‐
hole data, and use of
reconciliation data if available.
The composited assay data was compared against
original assay data in cross section. Modelled
wireframes were compared against original
stratigraphic interpretations and geophysical logs.
All correlated well.
Moisture Whether the tonnages are
estimated on a dry basis or with
natural moisture, and the method
of determination of the moisture
content.
Not applicable.
Cut‐off
parameters
The basis of the adopted cut‐off
grade(s) or quality parameters
applied.
A minimum cut‐off grade of 5% K2O was used as
this is considered economic. In addition areas
with a seam height of <1 m were excluded.
Mining factors
or
assumptions
Assumptions made regarding
possible mining methods,
minimum mining dimensions and
internal (or, if applicable, external)
mining dilution. It is always
necessary as part of the process of
determining reasonable prospects
for eventual economic extraction
to consider potential mining
methods, but the assumptions
made regarding mining methods
and parameters when estimating
Mineral Resources may not always
be rigorous. Where this is the case,
this should be reported with an
explanation of the basis of the
mining assumptions made.
A minimum seam height of 1 m was used as a cut‐
off to take into account potential mining height
underground.
Metallurgical
factors or
assumptions
The basis for assumptions or
predictions regarding
metallurgical amenability. It is
always necessary as part of the
process of determining reasonable
prospects for eventual economic
extraction to consider potential
metallurgical methods, but the
assumptions regarding
metallurgical treatment processes
Processing specifically for Nohra‐Elende has not
been considered at this stage. Insoluble material
has been modelled. The South Harz area has
historically been mined for decades and there is a
lot of local knowledge about the metallurgical
processes required.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
and parameters made when
reporting Mineral Resources may
not always be rigorous. Where this
is the case, this should be reported
with an explanation of the basis of
the metallurgical assumptions
made.
Environmental
factors or
assumptions
Assumptions made regarding
possible waste and process residue
disposal options. It is always
necessary as part of the process of
determining reasonable prospects
for eventual economic extraction
to consider the potential
environmental impacts of the
mining and processing operation.
While at this stage the
determination of potential
environmental impacts,
particularly for a Greenfields
project, may not always be well
advanced, the status of early
consideration of these potential
environmental impacts should be
reported. Where these aspects
have not been considered this
should be reported with an
explanation of the environmental
assumptions made.
Mining will take place underground. Assumptions
regarding environmental factors have been based
on the standards set by surrounding potash mines
in the area. Davenport has the exclusive right to
explore and/or produce and to appropriate the
respective mineral resources in a certain field.
However, all exploration and production activities
require a mining permit (Betriebsplanzulassung)
to be applied for with the mining authority.
Bulk density Whether assumed or determined.
If assumed, the basis for the
assumptions. If determined, the
method used, whether wet or dry,
the frequency of the
measurements, the nature, size
and representativeness of the
samples.
The bulk density for both the sylvinite and
carnallitite seams was calculated by Ercosplan
based on historical data. The bulk density for each
sample was calculated based on the derived
mineralogical composition. A weighted average
was created for sylvinite and carnallitite based on
the samples. The average density for Upper
Sylvinite is 2.17 t/m3 and 2.30 t/m3 for the Lower
Sylvinite, and 1.90 t/m3 for the Carnallitite seam.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
densities reported by Ercosplan were used by
Micon.
The bulk density for bulk material
must have been measured by
methods that adequately account
for void spaces (vugs, porosity,
etc), moisture and differences
between rock and alteration zones
within the deposit.
Not applicable.
Discuss assumptions for bulk
density estimates used in the
evaluation process of the different
materials.
Not applicable.
Classification The basis for the classification of
the Mineral Resources into varying
confidence categories.
The Nohra‐Elende sub‐area has been classified as
an Inferred resource based on the quality and
extents of the drilling database that are sufficient
to imply geological grade and continuity for
eventual economic extraction. A portion of the
Nohra‐Elende sub‐area had insufficient data to
declare a mineral resource.
Whether appropriate account has
been taken of all relevant factors
(ie relative confidence in
tonnage/grade estimations,
reliability of input data, confidence
in continuity of geology and metal
values, quality, quantity and
distribution of the data).
The location of Nohra‐Elende is in an area that
has been mining potash for decades. Whilst on
site, the Competent Person visited the area where
the old Volkenroda ventilation shaft was sunk and
other operating underground mines and solutions
mines in the neighbouring area such as
Bleicherode.
Whether the result appropriately
reflects the Competent Person’s
view of the deposit.
The stated tonnage and grade are considered an
appropriate reflection of the Competent Persons
view of the deposit.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
Audits or
reviews
The results of any audits or
reviews of Mineral Resource
estimates.
Between 1980 and 1987 historical resource
estimates were reported for three sub‐areas of
the Mühlhausen area including Nohra‐Elende. The
exact areas of the three resources were slightly
different to the current mining licence boundary.
The historical resource estimations were
conducted by VEB Geological Research und
Exploration. The total C2 balanced resource at the
equivalent of the Nohra‐
Discussion of
relative
accuracy/
confidence
Where appropriate a statement of
the relative accuracy and
confidence level in the Mineral
Resource estimate using an
approach or procedure deemed
appropriate by the Competent
Person. For example, the
application of statistical or
geostatistical procedures to
quantify the relative accuracy of
the resource within stated
confidence limits, or, if such an
approach is not deemed
appropriate, a qualitative
discussion of the factors that could
affect the relative accuracy and
confidence of the estimate.
The stated resource tonnage and grades stated
are considered based on the detailed drill hole
database and 3D modelling. The use of the
inverse distance squared method is considered
appropriate for Nohra‐Elende as the drill holes
are relatively far apart, the mineralised zone is
flat lying, mineral zones are clearly defined and
grade is relatively consistent.
The statement should specify
whether it relates to global or local
estimates, and, if local, state the
relevant tonnages, which should
be relevant to technical and
economic evaluation.
Documentation should include
assumptions made and the
procedures used.
This statement relates to the global Nohra‐Elende
resource.
These statements of relative
accuracy and confidence of the
Not applicable.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Criteria JORC Code explanation Commentary
estimate should be compared with
production data, where available.

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Section 4 Estimation and Reporting of Ore Reserves

(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section.)

Criteria JORC Code explanation Commentary
Mineral Resource estimate for
conversion to Ore Reserves
Not applicable for this report
Site visits
Study status
Cut‐off parameters
Mining factors or assumptions
Metallurgical factors or
assumptions
Environmental
Infrastructure
Costs
Revenue factors
Market assessment
Economic
Social
Other
Classification
Audits or reviews
Discussion of relative accuracy/
confidence

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.

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Section 5 Estimation and Reporting of Diamonds and Other Gemstones

(Criteria listed in other relevant sections also apply to this section. Additional guidelines are available in the ‘Guidelines for the Reporting of Diamond Exploration Results’ issued by the Diamond Exploration Best Practices Committee established by the Canadian Institute of Mining, Metallurgy and Petroleum.)

Criteria JORC Code explanation Commentary
Indicator minerals Not applicable for this report
Source of diamonds
Sample collection
Sample treatment
Carat
Sample grade
Reporting of Exploration Results
Grade estimation for reporting
Mineral Resources and Ore
Reserves
Value estimation
Security and integrity
Classification

Micon International Co Limited. Suite 10, Keswick Hall, Keswick, Norwich, Norfolk, U.K., NR4 6TJ Telephone (44) (1603)-501501 Fax (44) (1603)-507007 E-mail [email protected]. Registered no. 4026319, England.