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DART MINING NL Regulatory Filings 2017

Apr 2, 2017

64792_rns_2017-04-02_766aed15-5dac-4c02-908f-4b7f644901a7.pdf

Regulatory Filings

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ASX Release

LITHIUM EXPLORATION UPDATE

03 April 2017

EXPLORATION HIGHLIGHTS

  • Preliminary sampling confirms lithium fertile LCT dykes up to 1.13% Li2O

  • Spodumene (primary hard rock lithium ore type) identified within multiple dykes over 12km along the Dorchap Dyke Swarm within EL5315 Mitta

  • Reconnaissance mapping shows the Eagle pegmatite dyke (10m @ 0.94% Li2O) is up to 60m wide and extends beyond current mapping over 180m in length

  • Preliminary assays seen as highly encouraging with only 13 dykes of circa 1800 dykes visited to date with ongoing exploration continuing along some 60km of the dyke swarm

  • Preliminary sampling identifies potential exploration vector to ideal dyke geochemistry based on fractionation index

  • Additional EL application EL006486 - covering final remaining portion - will, upon granting, give Dart sole tenure to the entire Dorchap Dyke Swarm over some 60km of strike.

SPODUMENE IDENTIFIED IN DORCHAP DYKE SWARM

Dart Mining NL (Dart) is the first to explore the Dorchap Dyke Swarm for its lithium potential and to identify spodumene within the pegmatites, which is recognised as the primary source of hard rock lithium ore worldwide. This discovery by Dart signifies a completely new lithium pegmatite province of significant size over which it has a commanding tenement position. Encouraging results of a reconnaissance mapping and sampling program comprising 27 samples (Appendix 1) over 13 separate dykes at the northern end of the Dorchap Dyke Swarm are now available. In addition to assay analysis, mineral species identification was also carried out using X-ray powder diffraction (XRD) at Federation University, Ballarat. The test work has confirmed the presence of spodumene in all 7 samples submitted for identification, collected from dykes stretching along a 12km strike trend within EL5315. It was considered adequate to submit only 7 samples for XRD analysis. The identification of significant spodumene within the dykes of the swarm is highly encouraging, particularly given that this exploration is the first evaluation of the dyke swarms lithium prospectivity.

The preliminary nature of the mapping and limited sampling to date establishes the highly prospective LCT (Lithium–Caesium–Tantalum) nature of the pegmatite dykes of the Dorchap swarm, stretching some 60km from Glen Wills in the south to Eskdale in the north (Figure 1). The dykes sampled to date represent only 0.7% of the total circa 1800 dykes currently identified at the northern end of the swarm. The limited grab and rock chip sampling conducted comprises 29 rock chip and grab samples and confirms the presence of lithium oxide (Li2O) up to 1.57% at the Blue Jacket Dyke – Glen Wills (See DTM ASX 9 August 2016) and 4m @ 1.13% at the Gosport Group Dyke – Eskdale (Figure 1 & Photograph 1). The identification of spodumene by XRD in all 7 dyke samples submitted for analysis illustrates the highly prospective nature of the swarm.

==> picture [118 x 147] intentionally omitted <==

ASX Code: DTM

Key Prospects / Commodities: GOLD

Mountain View / New Discovery - Au Fairleys - Au Rushworth – Phoenix - Au Onslow – Au Saltpetre Gap - Au

LITHIUM / TIN / TANTALUM

Glen Wills – Li-Sn-Ta Eskdale / Mitta – Li-Sn-Ta

PORPHYRY GOLD / COPPER / MOLYBDENUM

Empress – Au-Cu Stacey’s – Au-Cu Copper Quarry: Cu+/- Au Gentle Annie: Cu

Morgan Porphyry: Mo-Ag-Au Unicorn Porphyry: Mo-Cu-Ag

Investment Data:

Shares on issue: 379,485,049 Unlisted options: 1,450,000

Substantial Shareholders:

Top 20 Holdings: 41.37 %

Board & Management:

Managing Director: James Chirnside Non-Executive Director: Luke Robinson Non-Executive Director: Russell Simpson Company Secretary: Julie Edwards

Dart Mining NL

ACN 119 904 880

Contact Details:

4 Bryant Street, Corryong VIC 3707 Australia

James Chirnside

Phone: +61 (0)419 605 842 Email: [email protected]

Visit our webpage: www.dartmining.com.au

==> picture [492 x 449] intentionally omitted <==

Figure 1. Tenement location and extent of pegmatite dykes of the Dorchap Dyke Swarm.

==> picture [595 x 95] intentionally omitted <==

==> picture [595 x 94] intentionally omitted <==

Photograph 1 . Gosport (Group) Dyke chip sample traverse 4m @ 1.13% Li2O.

Photograph 2 . James Chirnside in front of outcropping Eagle Dyke Pegmatite, showing a width of up to 60m.

2

It is not yet known if the individual LCT dykes are zoned internally. There are currently far too few samples along the swarm to establish a regional zonation (if this exists), with the sampling carried out interpreted to show increasing fractionation (prospectivity) from west to east (further discussed below).

EAGLE DYKE MAPPING AND SAMPLING RESULTS

Whilst to date only the Eagle Dyke (Figure 1 & 2) has been mapped in sufficient detail to evaluate the possible size of the outcrop, this dyke remains open both north west and south east over 180m in strike length and up to a width of 60m (Figure 2). A roadside chip sample traverse returned 10m @ 0.94% Li2O, the sample having been taken from where a side cut track supplied a continuous exposure of the soft weathered dyke.

A grab sample from a 4m wide outcrop was also taken some 20m south east of the road cutting; the sample shows 0.27% Li2O. Neither of the samples is considered representative of the full width of the dyke, no samples have been collected from the widest portion of the dyke further south east. The smooth, hard, rounded nature of the pegmatite in outcrop (Photograph 2) does not allow rapid assessment via chip sampling and will require a series of channel cut sample traverses to be established at regular intervals across the strike of the dyke, open over 180m (Figure 2).

It should be noted that assay results from small samples such as 2 – 10kg chip samples are unlikely to be highly representative of the average dyke material due to the coarse nature of the crystals that make up the pegmatite. The inherent coarse crystal size and random distribution of spodumene crystals can be considered as a nugget effect, meaning larger (bulk) samples may be necessary to better approximate true average grades. However, high density chip / channel samples and large diameter percussion drilling will greatly assist grade estimation with a larger sample dataset helping to reduce the nugget effect.

==> picture [354 x 376] intentionally omitted <==

Figure 2. Reconnaissance geological mapping and sampling – Eagle Pegmatite Dyke.

3

PEGMATITE GEOCHEMISTRY AND MINERALISATION

Initial sampling of 13 individual dykes along the northern end of the Dorchap Dyke Swarm (within EL5315 – Mitta) has returned trace element assay data that plots on a fractionation trend line showing increasing fractionation from west to east (Graph 1 and Figure 3) across EL5315. While sample data comes from a very limited number of sample points (collected over a 12km strike length), the degree of fractionation (defined by the ratio of key elements Rubidium (Rb) and Cesium (Cs) against Potassium (K) - representing feldspar) is very well defined (Graph 1). The trend line (red line Graph 1) and the arrows in Figure 3 provide an exploration tool that can be used to focus field work into areas of highest prospectivity based on degree of fractionation (higher fractionation in pegmatites is more prospective for lithium, tin and tantalum mineralisation).

==> picture [596 x 174] intentionally omitted <==

----- Start of picture text -----

K/Rb Vs K/Cs (Fractionation Trend)
120.00
Fractionation Trend
100.00
WEST
80.00
60.00
EAST
40.00
20.00
0.00
0.00 500.00 1000.00 1500.00 2000.00 2500.00 3000.00 3500.00
K/Cs
K/Rb
----- End of picture text -----

Graph 1. Fractionation Trend line – 13 Pegmatite dykes within EL5315.

==> picture [328 x 340] intentionally omitted <==

Figure 3. Graduated symbol map of fractionation index (Ratio of K/Rb over K/Cs), northern Dorchap Dyke Swarm, larger symbols represent higher degree of fractionation, more prospective for Li, Sn and Ta.

4

Assay results from the preliminary sampling of 13 separate dykes (a total of 27 samples) in the northern portion of the Dorchap Dyke Swarm show highly encouraging results for lithium, rubidium, tantalum, caesium and tin. Samples collected within EL5315 show up to 4m @ 1.13% Li2O (Sample 68943) at a dyke within the Gosport group (Figure 1). Another highlight includes 10m @ 0.94% Li2O (Sample 68923) at the most northerly mapped point of the Eagle Dyke (Figure 2). Tin (Sn) can also be significant with up to 7.68% Sn from sample 68938 - Blair’s Dyke (See Appendix 1 – Full Assay Listing). Only 7 samples of the 27 submitted for assay were also submitted for mineral identification by XRD, this was considered adequate to assess the likely lithium mineral species hosted by the LCT dykes of the swarm. The remaining 20 samples may also contain spodumene with Li2O assay analysis up to 10m @ 0.94% from the Eagle Dyke, further XRD analysis will be conducted as exploration continues to establish any variation in mineral species along and across the dyke swarm.

PLANNED LITHIUM EXPLORATION

As exploration continues, dykes along the 60km long dyke swarm will be investigated through mapping, sampling and drilling. To date, only 13 dykes at the northern extent of the dyke swarm (within EL5315) have received preliminary investigation, representing a minute fraction of the known dykes near Eskdale. Only one dyke at the southern end of the dyke swarm (near Glen Wills - EL006277 – under application) has been sampled. Given the extent of the dyke swarm (some 60km by 15 km) it will be necessary to focus initial exploration into areas interpreted to exhibit the most favorable pegmatite geochemistry (higher fractionation).

The initial sampling of a small group of dykes from the northern extent of the swarm appears to be illustrating a fractionation trend from west to east, away from the Kiewa Shear Zone and high grade metamorphic terrain. The increasing fractionation trend is highly conducive to the concentration of Li, Cs, Ta and Sn into pegmatites and presents an exploration tool capable of guiding the program to focus in on the best possible dykes of the circa 1800 currently identified at the northern end of the swarm. The exploration tool needs to be refined and tested across the entire swarm, however the initial sampling has been very encouraging with up to 4m @ 1.13% Li2O from a dyke within the Gosport Group (EL5315).

TENEMENT APPLICATION

Dart have submitted a further exploration licence application (EL006486 - Mt Creek) in light of the recent encouraging assay results within EL5315. Subject to approval the new application will capture the final remaining portion of the Dorchap Dyke Swarm between the Eskdale EL006300 and Glen Wills EL006277 application areas, continuously covering some 60 km of strike along the dyke swarm – Figure 1.

==> picture [595 x 95] intentionally omitted <==

==> picture [595 x 94] intentionally omitted <==

5

Tenement Status Report as at March 31 2017

Tenement applications EL006277 (Empress) and EL006300 (Eskdale) have proceeded through Native Title advertising as the final step toward grant in the statutory application processes. Application EL006486 was submitted 30 March and is subject to the approvals process.

Table 1. Tenement Status

Tenement
Number
Name Tenement Type Area (Grats)
Unless specified
Interest Interest
Post‐
Completion of
Tenement
Acquisition5
Location
EL4724 Buckland2 Exploration 40 100% NE Victoria
EL4726 Dart1&2 Exploration 164 100% NE Victoria
EL5058 Cudgewa Exploration 216 100% NE Victoria
EL5194 Mt. Alfred Exploration 27 100% NE Victoria
EL006277 Empress EL(Application) ~220 100% NE Victoria
EL006300 Eskdale3 EL(Application) ~240 100% NE Victoria
EL006486 Mt Creek EL(Application) ~191 100% NE Victoria
EL5468 Upper Murray Exploration 148 100% NE Victoria
ML5559 Mt View2 Mining 4.8 Ha 100% NE Victoria
EL5315 Mitta Mitta4 Exploration 195 50% JV 100% NE Victoria
MIN5246 Chinaman’s4 Mining 5 Ha 50% JV 100% Central Victoria
MIN5306 Phoenix4 Mining 5 Ha 50% JV 100% Central Victoria
MIN5538 Rushworth4 Mining 34.8 Ha 50% JV 100% Central Victoria

All tenements remain in good standing at 31 March 2017.

NOTE 1: Unicorn Project area subject to a 2% NSR Royalty agreement with BCKP Limited (Orion Mine Finance) dated 29 April 2013. NOTE 2: Areas subject to a 1.5% Founders NSR Royalty Agreement.

NOTE 3: Areas subject to a 1.0% NSR Royalty Agreement with Minvest Corporation Pty Ltd (See DTM ASX Release 1 June 2016). NOTE 4: Subject to Completion of a Mining Tenement Acquisition Agreement (see Note 5 below), these areas are subject to a 0.75% Net Smelter Royalty on gold production, payable to Bruce William McLennan NOTE 5: See Dart’s ASX Announcement “Acquisition of Tenement Package” dated 6 February 2017

REFERENCES

Cuffley, B. W., 1978. Exploration Licence 621. Essex Minerals Quarterly Technical Report, 1978

COMPETENT PERSONS STATEMENT

The information in this report that relates to Exploration Results is based on information compiled by Carl Swensson BSc.(Geol) Hons. a Competent Person who is a Member of the Australian Institute of Mining and Metallurgy. Mr Swensson is an independent consultant. Mr Swensson has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity being undertaken to qualify as a competent person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” . Mr Swensson consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

6

GLOSSARY OF KEY TERMS

Lithium (Li). Lithium, which has the chemical symbol Li and an atomic number of 3, is the first metal in the periodic table. With a specific gravity of 0.534, it is about half as dense as water and the lightest of all metals. In its pure elemental form it is a soft, silvery-white metal, but it is highly reactive and therefore never is found as a metal in nature. Lithium has an average concentration of 20 parts per million in the Earth’s continental crust. Lithium has many uses, the most prominent being in batteries for cell phones, laptops, and electric and hybrid vehicles. Lithium is added to glasses and ceramics for strength and resistance to temperature change, it is used in heat-resistant greases and lubricants, and it is alloyed with aluminum and copper to save weight in airframe structural components.

Worldwide sources of lithium are broken down by ore-deposit type as follows: closed-basin brines, 58%; pegmatites and related granites, 26%; lithium-enriched clays, 7%; oilfield brines, 3%; geothermal brines, 3%; and lithium-enriched zeolites, 3% (2013 statistics). Pegmatites are a type of granite characterized by giant crystals of the common rock-forming minerals quartz, feldspar, and mica. A few pegmatites — termed “LCT ” — are enriched in the rare metals lithium, cesium, and tantalum, and it is these LCT pegmatites that are mined for lithium. The most important lithium ore mineral is spodumene. Source: Summary from http://pubs.usgs.gov/fs/2014/3035/

Lithium Oxide (Li2O). Lithium Oxide is the standard for reporting elemental lithium metal (see above) in analysis, the conversion applied for Li to Li2O is 2.152

Lepidolite. Lepidolite is a lilac-gray or rose-colored member of the mica group with formula K(Li,Al,Rb)3(Al,Si)4O10(F,OH)2 ~~.~~ It is a secondary source of lithium. It is a phyllosilicate mineral and a member of the polylithionite-trilithionite series. It is associated with other lithium-bearing minerals like spodumene in pegmatite bodies. It is one of the major sources of the rare alkali metals rubidium and caesium. It occurs in granite pegmatites, in some high-temperature quartz veins, greisens and granites. Associated minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl. Source: Edited from https://en.wikipedia.org/wiki/Lepidolite

Spodumene. Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl(SiO3)2. Spodumene is an important source of lithium for use in ceramics, mobile phone and automotive batteries, medicine, Pyroceram and as a fluxing agent. Lithium is extracted from spodumene by fusing in acid. Source: Edited from https://en.wikipedia.org/wiki/Spodumene

Tantalum (Ta). Tantalum (Ta) is ductile, easily fabricated, highly resistant to corrosion by acids, and a good conductor of heat and electricity and has a high melting point. The major use for tantalum, as tantalum metal powder, is in the production of electronic components, mainly tantalum capacitors. Major end uses for tantalum capacitors include portable telephones, pagers, personal computers, and automotive electronics. Alloyed with other metals, tantalum is also used in making carbide tools for metalworking equipment and in the production of superalloys for jet engine components.

Source: Summary from http://minerals.usgs.gov/minerals/pubs/commodity/niobium/

Tantalum is estimated to make up about 1 ppm or 2 ppm of the Earth's crust by weight. There are many species of tantalum minerals, only some of which are so far being used by industry as raw materials: tantalite, microlite, wodginite, euxenite, polycrase. Tantalite (Fe, Mn)Ta2O6 is the most important mineral for tantalum extraction. The primary mining of tantalum is in Australia, where the largest producer, Global Advanced Metals, formerly known as Talison Minerals, operates two mines in Western Australia, Greenbushes in the Southwest and Wodgina in the Pilbara region. Source: Edited from https://en.wikipedia.org/wiki/Tantalum

Tantalum Oxide (Ta2O5). Tantalum Oxide is the standard for reporting elemental tantalum metal (see above) in analysis, the conversion applied for Ta to Ta2O5 is 1.2211

7

APPENDIX 1. ASSAY LISTING

Nb (ppm) P (ppm) Rb (ppm) Sn (ppm) Sn(ppm ‐ XRF05) Ta (ppm) Ta2O5 (ppm)** 34.2
610
780
89.3
11.65
14.23
3.9
920
323
12.2
1.12
1.37
8.6
1520
127
15.2
2.21
2.70
44.5
1260
1780
203
221
47.00
57.39
69.9
2990
730
86.5
77
13.65
16.67
40.0
2820
700
44.7
44
6.56
8.01
74.4
1810
810
156.5
197
47.30
57.76
65.1
870
620
103.5
141
33.90
41.40
63.9
1860
710
166.5
948
36.60
44.69
72.0
1460
690
85.4
134
23.70
28.94
108.0
600
840
122.5
225
120.00
146.53
82.6
400
438
118.5
119
120.00
146.53
246.0
150
1310
440
78600
140.00
170.95
153.0
1120
890
164.5
1595
110.00
134.32
88.4
910
1000
204
1955
95.20
116.25
85.0
690
630
119.5
532
46.20
56.41
86.5
910
700
85.1
884
42.20
51.53
62.2
790
500
72.1
423
41.50
50.68
91.4
1120
356
100.5
167
59.80
73.02
90.0
2160
740
116.5
123
55.60
67.89
66.3
730
830
148.5
303
37.00
45.18
109.0
480
1650
310
3530
64.00
78.15
54.5
720
540
91.1
1075
38.70
47.26
157.5
810
740
119.5
1360
130.00
158.74
65.8
1510
940
119
124
51.10
62.40
77.2
1790
560
84.2
307
28.10
34.31
67.1
1200
460
110.5
112
42.30
51.65
JORC CODE, 2012 EDITION – TABLE 1
SECTION 1 SAMPLING TECHNIQUES AND DATA
XRD Spodumene Spodumene Spodumene Spodumene Spodumene Spodumene Spodumene
**Li2O (%) *** 0.94 0.00 0.01 0.02 0.06 0.04 0.02 0.27 0.01 0.20 0.01 0.02 0.01 0.03 0.02 1.13 0.21 0.01 0.01 0.01 0.01 0.02 0.47 0.01 0.02 0.00 0.03
Li (ppm) 4350.0 14.8 27.3 97.1 270.0 196.0 77.2 1260.0 66.2 930.0 57.5 93.9 55.9 124.0 114.5 5230.0 960.0 43.4 41.3 65.9 48.0 81.3 2190.0 57.6 98.3 5.7 135.5
K (%) 3.21 3.42 1.13 6.42 3.11 3.60 2.55 2.18 2.68 2.31 2.51 1.38 3.30 2.36 2.16 1.75 2.23 1.47 1.42 2.67 1.79 3.14 2.09 1.40 3.53 1.73 2.41
Fe (%) 0.52 0.38 0.43 0.56 1.04 0.93 0.81 0.68 0.58 0.49 0.44 0.47 0.51 0.36 0.38 0.69 0.31 0.41 0.42 0.47 0.59 0.48 0.37 0.45 0.66 0.73 0.49
Cs (ppm) 48.20 11.60 4.38 138.00 30.10 19.65 69.80 49.50 48.20 34.70 102.00 55.50 98.00 55.60 112.50 61.40 52.30 28.20 23.50 45.40 46.30 105.50 28.30 47.40 72.80 28.00 35.30
Ca (%) 0.01 0.07 0.04 0.08 0.18 0.09 0.09 0.04 0.21 0.09 0.02 0.02 <0.01 0.09 0.05 0.02 0.06 0.03 0.09 0.13 0.02 0.01 0.04 0.06 0.15 0.13 0.12
APPENDIX 1 ‐ KEY ASSAY DATA ‐ ALL SAMPLES SampleID
Site_ID
NAT_Grid_ID Survey_Method
Accuracy (m)
NAT_East NAT_North NAT_RL Sample Type Be (ppm)
68923
608481
MGA94_55
GPS
5
523924
5949230
1116
CHIP
29.9
68924
608482
MGA94_55
GPS
5
520159
5950872
632
GRAB
1.75
68925
608483
MGA94_55
GPS
5
520069
5951155
692
GRAB
4.62
68926
608484
MGA94_55
GPS
5
525970
5944603
1140
CHIP
38.9
68927
608485
MGA94_55
GPS
5
524504
5942813
1165
CHIP
7.11
68928
608486
MGA94_55
GPS
5
524340
5942688
1187
CHIP
4.08
68929
608487
MGA94_55
GPS
4
526812
5944854
938
CHIP
49.6
68930
608489
MGA94_55
GPS
6
523944
5949218
1109
CHIP
74.6
68932
608491
MGA94_55
GPS
12
526501
5948360
922
CHIP
45.8
68933
608492
MGA94_55
GPS
7
524593
5950425
991
GRAB
43.7
68936
608496
MGA94_55
GPS
5
527434
5953366
640
CHIP
16.1
68937
608495
MGA94_55
GPS
7
527430
5953361
635
GRAB
4.62
68938
608497
MGA94_55
GPS
6
526237
5954441
829
GRAB
85.5
68941
608500
MGA94_55
GPS
7
524813
5959400
946
GRAB
91.8
68942
608501
MGA94_55
GPS
8
523746
5953848
577
GRAB
142
68943
608504
MGA94_55
GPS
6
523716
5953071
700
CHIP
152.5
68944
608505
MGA94_55
GPS
9
523694
5953087
708
CHIP
104.5
68945
608506
MGA94_55
GPS
5
524226
5959573
930
CHIP
5.84
68946
608507
MGA94_55
GPS
6
524278
5959479
931
CHIP
13.65
68947
608510
MGA94_55
GPS
8
524235
5959794
891
GRAB
4.92
68948
608517
MGA94_55
GPS
8
525563
5959619
852
CHIP
11.75
68949
608520
MGA94_55
GPS
5
525570
5959587
851
GRAB
43.6
68951
608524
MGA94_55
GPS
5
526147
5954165
819
CHIP
112.5
68952
608525
MGA94_55
GPS
5
526104
5954207
821
GRAB
133.5
68953
608527
MGA94_55
GPS
8
524206
5949133
1123
CHIP
35.2
68954
608528
MGA94_55
GPS
5
525722
5947731
1018
GRAB
5.45
68955
608529
MGA94_55
GPS
4
523554
5948187
1087
CHIP
103.5
All analyses carried out by ME‐MS61 other than Sn as indicated by XRF05 ‐ ALS techniques. NOTE *
Li (ppm) to Li2O (ppm) calculated using a factor of 2.153 (expressed as a percentage)
NOTE **
Ta (ppm) to Ta2O5 (ppm) calculated using a factor of 1.2211 (expressed in ppm)

8

Criteria
JORC Code explanation
Commentary
Sampling
techniques
Nature and quality of sampling (e.g. 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.
Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any
measurement tools or systems used.
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 (e.g. ‘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 (e.g. submarine nodules) may
warrant disclosure of detailed information.
Chip samples are taken
continuously across the
general strike of pegmatites in
outcrop, large samples (4 –
10kg) are taken where
possible to take a more
representative sample of the
large crystals in the
pegmatites. The chip samples
are of adequate quality to be
indicative of the small area
sampled.
Grab samples were collected
from the outcrop over a small
area (<1 – 5m in diameter).
The grab samples are
generally small (ie. <10kg) and
represent the local area only,
sampling only tests a small
aerial extent. The samples of
pegmatite are not considered
as being representative of the
dyke on mass. The grab
samples are of adequate
quality to be representative of
the small area sampled and
reflect the sampled insitu
mineralisation.
Drilling
techniques
Drill type (e.g. core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic, etc.)
and details (e.g. 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.).
NA
Drill sample
recovery
Method of recording and assessing core and chip
sample recoveries and results assessed.
Measures taken to maximise sample recovery and
ensure representative nature of the samples.
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.

NA
Logging
Whether core and chip samples have been geologically
and geotechnically logged to a level of detail to support
appropriate Mineral Resource estimation, mining
studies and metallurgical studies.
Whether logging is qualitative or quantitative in nature.
Core (or costean, channel, etc.) photography.
The total length and percentage of the relevant
intersections logged.

Chip / Grab samples were
logged for qualitative mineral
percentages, mineral species
and habit and each sample is
photographed and its location
recorded.
Sub‐sampling
techniques
and sample
preparation
If core, whether cut or sawn and whether quarter, half
or all core taken.
If non-core, whether riffled, tube sampled, rotary split,
etc. and whether sampled wet or dry.
For all sample types, the nature, quality and
appropriateness of the sample preparation technique.
Quality control procedures adopted for all sub-sampling
stages to maximise representivity of samples.
Measures taken to ensure that the sampling is
representative of the in situ material collected, including
Individual <10kg chip / grab
samples were collected from
outcrop, individual chips
making up the sample were
<40mm and chipped from a
random selection of the
mineralisation to generate a
representative average sample
of the mineralisation targeted.
The <10kg sample size is

9

Criteria JORC Code explanation Commentary
for instance results for field duplicate/second-half considered appropriate to test
sampling. the mineralisation for the
Whether sample sizes are appropriate to the grain size presence of lithium and
of the material being sampled. associated elements. The
sample is considered suitable
for the purposes of estimating
the magnitude of lithium within
the mineralisation at a local
scale only and not as a sample
representative of the wider
area of the pegmatite dyke on
average.
The whole sample was
crushed and pulverised prior to
sub-sampling at the laboratory
via riffle splitting.
Sampling was conducted at a
reconnaissance level and no
duplicate grab samples were
collected.
The sample size is smaller
than ideal when compared to
the grain size of the pegmatite
crystals and any lithium
mineralisation observed at
outcrop. The pegmatite dyke
shows considerable grain size
variability and possible
zonation of mineralisation.
Quality of The nature, quality and appropriateness of the assaying
Chip and Grab samples were
assay data
and
laboratory
tests
and laboratory procedures used and whether the
technique is considered partial or total.
For geophysical tools, spectrometers, handheld XRF
instruments, etc., the parameters used in determining
the analysis including instrument make and model,
submitted to ALS Chemex and
analysed for a suit of trace
elements using ALS Methods
ME-MS61 (A four-acid digest is
performed on 0.25g of sample
reading times, calibrations factors applied and their to quantitatively dissolve most
derivation, etc. geological materials). Analysis
Nature of quality control procedures adopted (e.g. was via ICP-MS + ICP-AES
standards, blanks, duplicates, external laboratory and for over limit elements Cs,
checks) and whether acceptable levels of accuracy (i.e.
Rb and Ta by ALS method ME-
lack of bias) and precision have been established. MS85 (lithium borate fusion
and ICP-MS) for quantitative
results of all elements,
including those encapsulated in
resistive minerals. These
techniques are appropriate and
considered a total extraction
technique.
Due to the reconnaissance
nature of the sampling, no
QAQC procedures were
adopted other than internal
laboratory CRM.
Sn has also been analysed by
XRF using ALS Method XRF05
due to potential for partial
digestion.

10

Criteria
JORC Code explanation
Commentary
Verification
of sampling
and assaying
The verification of significant intersections by either
independent or alternative company personnel.
The use of twinned holes.
Documentation of primary data, data entry procedures,
data verification, data storage (physical and electronic)
protocols.
Discuss any adjustment to assay data.
No verification process or
independent review of assay
data has been carried out.
Chip / Grab samples were
geologically logged,
photographed in the field and
entered into the company
database from hard copy field
sheets for long term electronic
storage.
Lithium analysis reports Li%,
Li2O (%) is derived by using a
conversion factor:
Li2O = Li x 2.153
Tantalum analysis reports Ta
(ppm) Ta2O5(ppm) is derived
by using a conversion factor:
Ta2O5= Ta x 1.2211
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.
Specification of the grid system used.
Quality and adequacy of topographic control.
The location of the chip / grab
samples and geological
mapping used a Trimble GPS
using the MGA94 Grid Datum
(Zone 55) with topographic
control taken from the GPS.
Accuracy is variable but
maintained <5m during the
mapping process with constant
visual quality assessment
conducted.
Data spacing
and
distribution
Data spacing for reporting of Exploration Results.
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.
Whether sample compositing has been applied.
Chip / Grab samples are not
presented or considered to be
representative of the
pegmatites average grade.
Grab samples only represent
the grade at a single point
within the mineralisation.
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.
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.
As above, Grab samples do
not capture any aspect of the
potential variation in grade in
relation to the orientation of the
mineralisation and represents
only a single point inside the
mineralisation. Chip samples
are collected perpendicular to
strike where possible to avoid
anysample bias.
Sample
security
The measures taken to ensure sample security.
All samples submitted for
analysis are placed in sealed
plastic bags and enclosed in
strong plastic boxes, delivered
to a commercial transport
company for delivery to the
laboratory. Any evidence of
sample damage or tampering
is immediately reported by the
laboratory to the company and
a decision made as to the
integrityof the sample and the

11

Criteria
JORC Code explanation
Commentary
remaining samples within the
damaged / tampered bag/s.
Audits or
reviews
The results of any audits or reviews of sampling
techniques and data.
The mapping and sampling
methodology and results were
documented and supplied to
an independent expert who
acts as the competent person
for this report.

SECTION 2 REPORTING OF EXPLORATION RESULTS

SECTION 2 REPORTING OF EXPLORATION RESULTS
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.
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.
Tenement
Number
Name Tenement
Type
Area (Grats)
Unless specified
Interest Interest
Post‐
Completion
of
Tenement
Acquisition5
Location
EL4724 Buckland2 Exploration 40 100% NE
Victoria
EL4726 Dart1&2 Exploration 164 100% NE
Victoria
EL5058 Cudgewa Exploration 216 100% NE
Victoria
EL5194 Mt. Alfred Exploration 27 100% NE
Victoria
EL006277 Empress EL
(Application)
~220 100% NE
Victoria
EL006300 Eskdale3 EL
(Application)
~240 100% NE
Victoria
EL006486 Mt Creek EL
(Application)
~191 100% NE
Victoria
EL5468 Upper Murray Exploration 148 100% NE
Victoria
ML5559 Mt View2 Mining 4.8 Ha 100% NE
Victoria
EL5315 Mitta Mitta4 Exploration 195 50% JV 100% NE
Victoria
MIN5246 Chinaman’s4 Mining 5 Ha 50% JV 100% Central
Victoria
MIN5306 Phoenix4 Mining 5 Ha 50% JV 100% Central
Victoria
MIN5538 Rushworth4 Mining 34.8 Ha 50% JV 100% Central
Victoria
All tenements remain in good standing at 31 March 2017.
NOTE 1:Unicorn Project area subject to a 2% NSR Royalty agreement with BCKP Limited (Orion
Mine Finance) dated 29 April 2013.
NOTE 2:Areas subject to a 1.5% Founders NSR Royalty Agreement.
NOTE 3:Areas subject to a 1.0% NSR Royalty Agreement with Minvest Corporation Pty Ltd (See
DTM ASX Release 1 June 2016).
NOTE 4:Subject to Completion of a Mining Tenement Acquisition Agreement (see Note 5 below),
these areas are subject to a 0.75% Net Smelter Royalty on gold production, payable to Bruce
William McLennan
NOTE 5:See Dart’s ASX Announcement “Acquisition of Tenement Package” dated 6 February 2017
Exploration
done by other
parties
Acknowledgment and appraisal of
exploration by other parties.
No commercial exploration for Li has previously
occurred, geological investigations as part of
academic research has been reported for the
pegmatite dykes of the area in:
Eagle, R. M., 2009. Petrology, petrogenesis and
mineralisation of granitic pegmatites of the Mount Wills
District, northeastern Victoria. Unpublished thesis,
University of Ballarat.
Eagle, R. M., Birch, W. D & McKnight, S., 2015. Phosphate
minerals in granitic pegmatites from the Mount Wills
district, northeastern Victoria. Royal Society of Victoria.
127:55‐68.
Previous exploration in the district has focussed on
gold exploration at Glen Wills and historic Sn

12

production from pegmatite dykes.
Geology
Deposit type, geological setting and
style of mineralisation.

The lithium mineralisation reported is hosted
within highly evolved, late tectonic
peraluminous granite pegmatites of the
complex Lithium, Caesium, Tantalum (LCT)
class. These dykes are thought to be distal to
a source granitic body and are present as
lenticular, discontinuous bodies of variable
length and width (up to many hundreds of
metres in length and tens of metres in width).
Lithium mineralisation within the pegmaties is
poorly understood at this early exploration
stage but suspected to be spatially related to
the zonation within the complex pegmatites.
Lithium mineralisation observed to date
appears to be as spodumene – Cassiterite is
also evident within the dyke.
Drill hole
Information
A summary of all information
material to the understanding of the
exploration results including a
tabulation of the following
information for all Material drill
holes:
o easting and northing of the drill
hole collar
o elevation or RL (Reduced Level
– elevation above sea level in
metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and
interception depth
o hole length.
If the exclusion of this information is
justified on the basis that the
information is not Material and this
exclusion does not detract from the
understanding of the report, the
Competent Person should clearly
explain why this is the case.
NA
Data
aggregation
methods
In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum grade
truncations (e.g. cutting of high
grades) and cut-off grades are
usually Material and should be
stated.
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
such aggregations should be shown
in detail.
The assumptions used for any
reporting of metal equivalent values
should be clearly stated.
NA
Relationship
between
mineralisation
These relationships are particularly
important in the reporting of
Exploration Results.
NA

13

widths and If the geometry of the mineralisation
intercept
lengths
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 (e.g. ‘down hole length, true
_width not known’). _
Diagrams Appropriate maps and sections (with NA
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.
Balanced Where comprehensive reporting of NA
reporting 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.
Other Other exploration data, if meaningful Any other relevant information is discussed in the
substantive and material, should be reported main body of the report.
exploration
data
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.
Further work The nature and scale of planned Planned work is discussed in the body of the report
further work (e.g. tests for lateral and is dependent on future company direction.
extensions or depth extensions or
large-scale step-out drilling).
Diagrams clearly highlighting the
areas of possible extensions,
including the main geological
interpretations and future drilling
areas, provided this information is
not commercially sensitive.

14