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GBM RESOURCES LIMITED. Capital/Financing Update 2017

Sep 11, 2017

64966_rns_2017-09-11_5763eded-4dcc-4436-b78a-91015cf315ad.pdf

Capital/Financing Update

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ASX Announcement

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ABN 91 124 752 745
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12 September 2017

Field Program - Mt Usher Gold Prospect Part of the Mount Morgan Copper-Gold Project, Qld.

ASX Code: GBZ

COMPANY DIRECTORS

  • Historical (1900) Mt Usher Gold Prospect produced over 150,000 ounces from alluvial and hard-rock mining, hard-rock production averaged in excess of 1 ounce per ton.

  • Field activities and mapping has identified:

  • Results from rock chip samples confirm high grade gold is present.

Peter Thompson Managing Director/ Executive Chairman

Neil Norris Exploration Director – Executive Hun Seng Tan Non- Executive Director

CONTACT DETAILS

  • Potential new gold discovery with multiple lodes, strike length > 5km and 500m wide.

  • Very high grade epithermal-type gold system – similar metal suite and alteration style to Mt Morgan Gold Mine.

  • Two viable exploration models – high-grade epithermal fissure vein and high-grade bulk tonnage Mt Morgan Mine style VHMS/Intrusive-Related composite.

  • No drilling and only minimal modern exploration.

  • Extensive sampling and mapping over the >5 Km strike length in progress.

Principal & Registered Office Suite 8, 7 The Esplanade, Mt Pleasant, WA 6153

Exploration Office

10 Parker Street, Castlemaine, Victoria 3450

Website

www.gbmr.com.au

Email

[email protected] Phone +61 (8) 9316 9100

Fax

+61 (8) 9315 5475

Phone (Exploration Office) +61 (3) 5470 5033

Australian resources company GBM Resources Limited (ASX: GBZ ) (“ GBM ” or “ the Company ”), is pleased to announce initial results from sampling, mapping and data review at the historical Mt Usher gold field, located near the Mt Morgan mine in Central Queensland, Australia.

The Mt Usher area has historically produced more than 150,000 ounces of gold from rich alluvial deposits and from underground mining of very high grade epithermaltype quartz vein hosted gold mineralisation. The main workings at Mt Usher are hosted by Mt Warner Volcanics, the same rock suite that hosts Mt Morgan located 12 km to the south-west. A major north-east trending lineament links the two deposits. The Mt Morgan Lineament is defined by mapped faults, magnetics and gold occurrences and is orientated parallel with Mt Morgan mine faults.

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Recent work by GBM has noted strong similarities between the two deposits, most notably; similar primary and secondary metal suite, presence of intense silica-pyrite mineralisation within the ore zones and proximal chlorite-sericite-epidote-jasper alteration, fault geometry relationships, and proximity to large felsicintermediate intrusive bodies.

The acquisition in 2015 of EPM25678 was justified by Mt Usher’s status as the second largest gold producer in the field after Mt Morgan, the prospective structural and host rock setting and limited historical exploration including no record of any prior drill testing.

During July and August this year, GBM undertook an initial program of surface mapping, rock-chip sampling and airborne drone topographic-imagery surveying. A review of historical mine references and modern exploration was also completed. Mapping has defined for the first time a continuous fault, sulphide alteration and lode quartz corridor of at least 5 km in strike length and 500 m wide enclosing the Mt Usher mine and numerous lesser production centres including the Anglo Saxon, Caledonian and Victor mines. This fault zone is hosted by mixed Devonian volcanic and sedimentary rocks at the eastern and western ends and by magnetic diorite or tonalite in the central zone. Gold mineralisation has developed in all rock types within the corridor.

Results for the first 19 rock-chip sample assays received from ALS Laboratories confirm high-grade gold is present in pyritic/limonitic quartz veins within the volcanic package at Mt Usher mine and the diorite at the Caledonian mine along strike to the west (peak 14.4 g/t Au). Anomalous Ag, Cu, Pb and Zn is also present, confirming the old miners’ reports of ‘blackjack(sphalerite), galena and carbonates of copper’ with pyrite in the ore zone. Highly anomalous Te (peak 10.1 ppm) shows a strong association with gold and silver in conjunction with Mo, Bi, Sb and As. This metal assemblage is similar to that reported from the ore system at Mt Morgan (Lawrence, 1974), with the addition of silver from galena, and is characteristic of higher-temperature epithermal and/or intrusive-related gold systems.

Sample_ID MGA_N MGA_E Sample_Description Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results Assay_Results
Au Ag As Bi Cu Mo Pb Sb Te Zn
Unit ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
Detection Limit 0.01 0.01 0.2 0.01 0.2 0.05 0.5 0.05 0.05 2
MUR001 7387978 242153 Qtz vein 13.55 15.8 98 3.15 79.8 0.38 19 3.48 8.84 2050
MUR002 7387965 242155 Mullock 0.83 0.79 91.8 1.1 15.2 0.9 13.5 5.47 0.61 143
MUR003 7387876 242435 Mullock 0.46 0.43 31.9 0.56 27.3 30.3 16.8 2.06 0.27 833
MUR004 7387975 242562 Fault/qtz vein 0.15 0.62 22.2 0.19 8.9 1.12 22 2.78 0.31 226
MUR005 7387928 242605 Qtz vein in adit 0.03 0.22 21.9 0.12 11.2 1.77 9.9 7.78 <0.05 360
MUR006 7387928 242605 Qtz vein in adit 0.05 0.06 9.4 0.03 4.4 0.43 3.7 1.29 <0.05 139
MUR007 7387920 242590 Qtz vein at adit 0.19 0.57 18.6 0.08 107.5 0.31 4.8 7.46 0.23 1320
MUR008 7387929 242603 Qtz vein at adit 1.16 4.35 93.4 1.45 1160 2.18 479 7.6 1.34 2230
MUR009 7387887 242712 Qtz vein 14.35 17.05 104.5 1.04 341 2.48 19.4 19.15 10.05 1140
MUR010 7387957 242820 Qtz vein/fault <0.01 0.05 6.7 0.22 12.9 0.67 3.5 0.54 <0.05 29
MUR011 7387882 241771 Fault in adit 0.06 0.29 12.6 0.29 47.6 1.4 618 1.8 0.11 500
MUR012 7387888 242750 Fault in adit 0.1 0.93 22.4 0.4 160 1.43 357 2.37 0.08 977
MUR013 7388122 241871 Openpit sample 0.01 0.34 3.4 0.43 25.2 0.46 5.2 0.88 0.07 19
MUR014 7387880 242768 Altered volcanic rock 0.01 1.11 13.6 0.37 21.9 0.4 19.8 1.99 0.05 1440
MUR015 7387870 242760 Altered volcanic rock <0.01 0.05 2.4 0.19 7.4 0.23 5.4 0.63 0.05 20
MUR016 7387882 242747 CuOx in shear 0.06 5.89 13 0.71 1030 5.31 1875 1.8 0.15 329
MUR017 7387889 242700 Qtz-Lim vein 2.66 3.74 81.6 1.27 56.3 2.75 51.3 10.7 1.14 132
MUR018 7387927 242587 Shear zone 0.08 0.32 37.4 0.19 6.2 2.05 26.2 11.25 <0.05 62
MUR019 7387927 242587 Qtz vein float 3.82 4 57.5 0.25 4420 0.52 15 19.2 0.12 8540

Table 1: IAssay results received to date for Mt Usher rock-chip samples (ALS Laboratories, Brisbane).

Modern analysis indicates that the overprinting of pre-existing volcanic massive sulphide mineralisation (VHMS) by later intrusive-related Au-Cu bearing fluids from the adjacent tonalite unit was responsible for ore genesis at Mt Morgan. The fluid signature and the metal assemblage are indicative of an epithermal setting for the main mineralizing event (Ulrich, 2002), a theory supported by recent work by Corbett for GBM (Internal report, 2015). GBM will investigate the possibility that the Mt Usher epithermal-style fissure vein mineralisation may be associated with a large, blind Mt Morgan analogue.

Next Steps

GBM believes the Mt Usher fault corridor is highly prospective for near surface, high-grade vein-hosted, epithermal gold-silver mineralisation and that evidence is mounting for the existence of a deeper, large tonnage, high-grade Mt Morgan analogue within the prospect area. It seems remarkable given the extensive modern exploration effort to find another Mt Morgan that such limited attention has been paid to the second biggest producer, Mt Usher.

Further work at Mt Usher will include continued mapping and comprehensive rock-chip and soil sampling across the entire fault zone. Due to the steep topography and multiple parallel lodes, 3D modelling using GBM generated data and historical mine data will be critical for drill planning. A small diamond drilling program of three to four circa 300m holes in the vicinity of the main workings is scheduled late in 2017. Electrical geophysical methods will be considered to test for large, blind, massive-sulphide Mt Morgan style mineralisation.

For Further information please contact:

Peter Thompson Karen Oswald Managing Director Marko Communications GBM Resources Limited Tel: + 0423 602 353 Tel: 08 9316 9100 Email: [email protected]

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Figure 1-1: GBM tenements and prospect areas. Mt Usher project and tenement (EPM25678) shown in blue.

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Figure 1- 2: Mt usher fault zone preliminary mapped extent with location of historical mine development.

About the Mt Usher Prospect

Early History

Alluvial gold was discovered in Crocodile Ck (now Gavial Ck) in 1865 and by 1866 activity had peaked with 3- 5,000 mostly Chinese miners on the field. This period was before compulsory reporting of gold production figures in Queensland and as a result production estimates vary between 100,000 to 150,000 ounces of alluvial gold recovered (Morwood, 2003, Brisbane Truth, 1903). At least three further periods of alluvial mining by dredge took place into the 1940’s. The presence of very large boulders in the upper reaches of the valley prevented extraction from the main drainage channel and most mining therefore occurred in overbank deposits at the base of the valley walls. It is likely that a significant amount of alluvial gold derived from the Mt Usher lode system still remains in the central channel.

In the early 1890’s, an English immigrant by the name of William Usher discovered that the source of the alluvial gold in Gavial Creek was a series of lode quartz veins cropping out in the southern valley wall, one kilometre upstream from the alluvial workings. By 1895, systematic development of the upper Mt Usher mine levels had begun.

The plant at Mt Usher was by 1901 the most sophisticated in the district, employing two ten-stamper batteries with automatic feed and a very early cyanide plant to recover the reported half-ounce per tonne gold lost across the tables due to the high-sulphide ore.

Production peaked in 1901 at about 1,000 oz/month at an average grade of greater than 1 oz/ton. Official figures indicate a total hard rock production from the Mt Usher mine of 30,250 oz from approximately 27,000 ore tonnes (Morwood, 2003). This figure may not include all gold later recovered from tailings and slimes and will not account for the reported loss by theft of bonanza grade specimen gold throughout the mining life.

Geology and Mineralisation

The dominant producer within the Mt Usher fault zone was the Mt Usher mine. Development here extended at least 300m laterally with approximately 200m vertical extent from the hill top to the valley base. GBM estimates that the possible volume of auriferous rock eroded from the wedge in the valley gives between 100-150,000 tonnes, supporting alluvial production estimates at the reported hard-rock mined grades. Therefore, total endowment from the Mt. Usher lode system from surface to gorge base was likely to exceed 200,000 ounces.

Newspaper reports provide a good description of production at the Mt Usher mine which was centred on a distinctive shear zone with well-defined, planar footwall and hangingwall margins. At each of the margins a goldbearing quartz vein lies close to or in contact with the country rock, forming a ‘double-lode’, with ‘barren country rock’ or ‘mullock’ reported in between. Development was advanced separately on each lode, linked by crosscuts. Quartz vein width averaged 25-30cm throughout the mine, locally thickening to almost one metre. The hangingwall reef was considered the better of the two according to width and grade. Investigation of the mullock zone between lodes is required as the old miners would have applied a high cut-off grade.

GBM has observed intense alteration, disseminated sulphide and narrow quartz-sulphide stringer veins in this zone.

Although details are not clear, it appears a narrow shear or breccia zone (up to 1m wide?) occurs with each quartz lode at the hanging and footwalls, often containing ‘much mundic, galena and blackjack’ (pyrite, galena and sphalerite). These shear zones were mined and processed so can be inferred to have carried significant grade. They were referred to as ‘gold-bearing mineral’ and were considered a good indicator especially if ‘weeping water’.

GBM has observed stopes in Level 5 of 2-3m in width, suggesting these ‘payable’ shear zones may be of sufficient width to support modern underground narrow vein style mining methods.

Best grades were returned from the quartz veins and visible coarse gold was common. Written anecdotes indicate these veins were often of very high grade; ‘quartz shot through with gold’, ‘some stone so rich easier to knock gold from the rock than stone from the metal‘ and ‘1,000 ounce patches of specimen gold’. Theft was a major issue throughout the mine life. Each level drive had a ‘gold bank’, where an embayment cut in the side of the drive was installed with gates and at each stope firing, any specimen-quality ore liberated was hand-picked by the shift manager and deposited in the bank in an attempt to minimize thievery. Banked ore was then mixed to keep mill feed grade consistent.

Other discrete fault/quartz lode zones exist in parallel to the Mt Usher shear zone. The New Golden Cave workings, first mentioned in 1927 and located about 50m south of the Mt Usher mine, appear to exploit a similar fault breccia and narrow quartz vein. Mention was also made of two further parallel lodes apparently located between New Golden Cave and Mt Usher, the Egan Reef being one. Information on these developments is scarce.

Preliminary mapping by GBM indicates host rocks at Mt Usher mine consist of a sequence of andesitic tuffs, cherts and volcaniclastic sandstones located within a complex structural setting. The old miners referred to a dark-coloured feldspathic dyke (andesite) on the footwall and a pale-coloured metamorphic rock (possibly altered volcaniclastic) at the hangingwall. Further along strike to the west, the Devonian volcanic package includes mineralized jasper horizons and intense chlorite-epidote-sulphide alteration associated with linear shear zones. The volcanics are intruded by a medium grained igneous unit of dioritic or tonalitic composition. Further work is required to understand the lithological/structural controls on mineralisation and age/stratigraphic links to the Mt Morgan orebody.

Previous Exploration

Mention of a separate low-angle cross-cutting vein set by the old-miners may partly explain the paucity of modern exploration at Mt Usher. Geopeko/Goldfields mapped and channel sampled the walls of Levels 2 and 5 in the 1980’s. This work appears to have focused on narrow veins orientated at a low angle to development drives. Assay results were conspicuously low in gold. Old records indicate these mapped levels produced excellent returns for MUGM so sampling of backs and faces instead of drive walls may have proved more fruitful for Geopeko. Later workers in the area (Hunter, Poseidon, Newcrest) may have been influenced by these findings as the Mt Usher field was largely ignored.

Other Mines within the Mt Usher Fault Zone

Information is scarce on other production centres within the field. The Anglo Saxon and Victor mines may have exploited the westerly continuation of the Mt Usher double-lode and the Caledonian mine the continuation of the New Golden Cave lode. At the Anglo Saxon, a series of shafts (Elsie and Roxborough shafts) and adits accessed significant underground development to at least 200m vertical depth in the dioritic unit. Grades of 5-8 ounces per tonne from a reef almost a metre wide in the upper levels were reported. At Victor, the lode was said to show a similar footwall-hangingwall geometry to Mt Usher mine. Victor production records are approximately 1,600 ounces gold from 1,211 tonnes ore, indicating similar ore grade to Mt Usher (Morwood, 2003).

Notes

The information in this report that relates to Exploration Results is based on information compiled by Neil Norris, who is a Member of The Australasian Institute of Mining and Metallurgy and The Australasian Institute of Geoscientists. Mr Norris is a full-time employee of the company, and is a holder of shares and options in the company. Mr Norris has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking 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 Norris consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

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References

JACK, R. L., 1898: Mount Morgan and Other Mines in the Crocodile Goldfield. Geological Survey of Queensland Publication 132, Brisbane.

LAWRENCE, L.J., 1974: The nature and origin of the ore minerals of Mount Morgan. In Southern & Central Queensland Conference 1974. Australasian Institute of Mining and Metallurgy, p417-424.

MORWOOD, D. A., 2003: Mineral occurrences – Mt Morgan 1:100,000 sheet area. Queensland Geological Record 2002/3, Queensland Government Natural Resources and Mines.

ULRICH, T. (et al), 2003: Different mineralization styles in a volcanic-hosted ore deposit: the fluid and isotopic signatures of the Mt Morgan Au-Cu deposit, Australia. Ore Geology Reviews, 22 1-2: 61-90.

Newspaper Articles

The Mount Usher Gold Mines Ltd – Prospectus: Rockhampton Capricornian, Saturday 25 July 1896, page 27.

The Mount Usher Mine: The Capricornian Rockhampton, Saturday 27 February 1897, page 26.

A Visit to Mount Usher: The Capricornian Rockhampton, Saturday 3 July 1897, page 26.

The Mount Usher Gold Mines: Rockhampton Morning Bulletin, Monday 19 July 1897, page 6.

The Crocodile Goldfield, A Visit to Mount Usher: Rockhampton Morning Bulletin, Monday 26 September 1898, page 6.

The Mount Usher Gold Mines, General Meeting: Rockhampton Morning Bulletin, Tuesday 29 January 1901, page 7.

Mount Usher Gold Mines – Scheme of Reconstruction: The Capricornian Rockhampton, Saturday 25 October 1902, page 29.

Rockhampton Records – “Peter’s Rush” Mt Usher: Truth Brisbane, Sunday 13 September 1903, page 3.

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JORC Code, 2012 Edition – Table 1 Mt Usher Gold Field, Mt Morgan Project Section 1 Sampling Techniques and Data

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

Criteria JORC Code explanation Commentary
Sampling Nature and quality of sampling (eg cut channels, random chips, or •Rock-chip Sampling: surface outcrop grab-sampling of random
techniques specific specialised industry standard measurement tools appropriate chips using hand-held hammer.
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.
•Sample sites were selected based on lithological representivity and
the same sampling technique employed at each site where
possible.
Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems
used.
•Samples were chipped from outcrop or subcrop using a geological
hammer, bagged into labelled calico bags, dispatched to ALS
Laboratories which prepared the samples using industry standard
Aspects of the determination of mineralisation that are Material to the procedures
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 warrant disclosure of detailed information.
Drilling Drill type (eg core, reverse circulation, open-hole hammer, rotary air
Not applicable, no drillhole information quoted.
techniques 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).
Drill sample Method of recording and assessing core and chip sample recoveries
Not applicable, no drillhole information quoted .
recovery 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.
Logging Whether core and chip samples have been geologically and •Rock-chip samples were logged for lithology, alteration, minerals,
geotechnically logged to a level of detail to support appropriate oxidation, structural setting.
Criteria JORC Code explanation Commentary
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.
Sub- If core, whether cut or sawn and whether quarter, half or all core •A representative rock-chip grab sample from each sample site.
sampling taken.
techniques
and sample
preparation
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 for instance results for field
duplicate/second-half sampling.
Whether sample sizes are appropriate to the grain size of the material
being sampled.
Quality of The nature, quality and appropriateness of the assaying and •ALS Laboratories Au-AA25 and Au-AA30: A prepared sample is
assay data laboratory procedures used and whether the technique is considered fused with a mixture of lead oxide, sodium carbonate, borax, silica
and partial or total. and other reagents as required, inquarted with 6 mg of gold-free silver
laboratory
tests
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.

and then cupelled to yield a precious metal bead. The bead is
digested in 0.5 mL dilute nitric acid in the microwave oven. 0.5 mL
concentrated hydrochloric acid is then added and the bead is further
digested in the microwave at a lower power setting. The digested
solution is cooled, diluted to a total volume of 10 mL with de-
Nature of quality control procedures adopted (eg standards, blanks, mineralized water, and analyzed by atomic absorption spectroscopy
duplicates, external laboratory checks) and whether acceptable levels
against matrix-matched standards.
of accuracy (ie lack of bias) and precision have been established. •ALS Laboratories ME-MS61: a 0.5g sample is subjected to near-total
digestion by a four-acid mixture and finished with a combination of
ICP Mass Spectrometry (MS) and Atomic Emission Spectroscopy
(AES).
•Laboratory QAQC involves the use of internal lab standards using
certified reference material, blanks, splits and replicates as part of the
in house ALS procedures.
Criteria JORC Code explanation Commentary
•No handheld tools were used with all assays performed at external
laboratories
•Quality control procedures were not employed for rock-chip sampling.
Verification The verification of significant intersections by either independent or •Samples returning significant results were inspected by other seior
of sampling alternative company personnel. geological staff geologists to confirm the nature of mineralization.
and
assaying
The use of twinned holes. •Not applicable No drilling completed.
Documentation of primary data, data entry procedures, data •Primary data records have been included in GBM’s digital data base
verification, data storage (physical and electronic) protocols. and checked by senior geological staff. The Data base is subject to
Discuss any adjustment to assay data. GBM’s database SOP.
•There are no adjustments to assay data.
Location of Accuracy and quality of surveys used to locate drill holes (collar and •All sample point locations were surveyed by GBM personnel using
data points down-hole surveys), trenches, mine workings and other locations handheld GPS units.
used in Mineral Resource estimation. •All results quoted in MGA84
Specification of the grid system used.
Quality and adequacy of topographic control.
Data spacing
Data spacing for reporting of Exploration Results.

Not applicable no drillhole information quoted.
and
distribution
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.
Orientation Whether the orientation of sampling achieves unbiased sampling of
Not applicable, no drillhole information quoted.
of data in possible structures and the extent to which this is known, considering
relation to the deposit type.
geological
structure
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.
Sample The measures taken to ensure sample security. •All samples were transported to a commercial courier by Company
security personnel where they were on-shipped directly to ALS Laboratories in
Brisbane.
•Core, coarse chip rejects and pulps are stored at the GBM core
facility.
Criteria JORC Code explanation Commentary
Audits or The results of any audits or reviews of sampling techniques and data.
•No audits of either the data or the methods used in this program have
reviews been undertaken to date.

Section 2 Reporting of Exploration Results

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

Criteria JORC Code explanation Commentary
Mineral Type, reference name/number, location and ownership including •The Mt Usher prospect is located within EPM25678, adjacent to
tenement agreements or material issues with third parties such as joint Gavial Ck, approximately 10 km NE of the Mt Morgan township and 2
and land ventures, partnerships, overriding royalties, native title interests, km S of the Bouldercombe township.
tenure status historical sites, wilderness or national park and environmental
settings.
•The EPM is 100% owned GBM Resources Ltd. EPM25678 expires on
08/4/2018.
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.
•Part of the licence area is subject to a RA404 which will require GBM
to complete a number of actions including application for a higher
form of tenement and demonstration that a significant mineral system
exists for the area remain available for mineral exploration and
mining. For further details see Queensland Department of Natural
Resources and Mines Operational Policy number 8/2014. GBM is not
aware of any material issues with third parties which may impede
current or future operations at Mt Usher.
Exploration Acknowledgment and appraisal of exploration by other parties. • _Geopeko/Goldfields JV (1982-1990):_Geopeko explored the lease
done by area for massive sulphide Mt Morgan repeats focusing on the old Mt
other parties Usher goldfield, Bouldercombe (Block and Pillar) and Belgamba
prospects. At Mt Usher, the JV completed mapping and sampling of
accessible mine levels and reconnaissance mapping along the mine
fault strike. During their tenure, Goldfields developed the Caldera
model for the Mt Morgan area. The model suggests Au-Te
mineralisation at Mt Morgan and Mt Usher is centered on ring faults
cross-cutting an interpreted caldera margin, and that both deposits
are located on anticlinal domes near vents on opposing walls of the
caldera. Comparisons with western USA caldera systems were
suggested and the potential for epithermal mineralisation in
structurally prepared sites in the Mt Usher area noted.
• _Hunter in JV with Poseidon/Newcrest/Eagle (1991-1998):_This multi-
company JV covered a similar tenement area to GBM’s Mountain
Maid lease. Poseidon’s exploration focus was large
replacement/breccia bodies with secondary attention to
porphyry/fissurevein/VMS/ skarndeposits. Newcrestfocuswasfor
Criteria JORC Code explanation Commentary
+5M oz gold deposits of near surface bulk tonnage
replacement/breccia/stockwork style. Over the tenure period, the
entire lease was mapped at 1:5,000 scale (best mapping at Mt Usher
to date), stream sediment sampled and much of it covered with ridge
and spur soil sampling. Numerous old mine workings were given
closer attention, however Mt Usher and the lesser mines along the Mt
Usher fault were never a priority. Relevant findings from this period
were:
o
Rock chip sampling from mullock dumps at Mt Usher mine
returned an Au-Zn-Cu-As-Te-Mo association. Nearby
sampling of jasperoids showed similar metal anomalism.
o
Mapping just upstream from Mt Usher mine indicated the
presence of silica-py clasts (50% py) from lapilli-scale to over
20cm in size from an epiclastic bed within andesites. The
clasts returned anomalous Au-Te-Se-Zn-Mo-Cu. Similarities
in appearance and chemistry were noted between these
clasts and Mt Morgan ore. Proximity to a nearby vent was
postulated.
o
Sericite-silica-pyrite alteration around the diorite at Gavial
(Crocodile) Ck, downstream from Mt Usher.
o
Regional propylisation best developed in andesites as
chlorite-epidote-carbonate.
Geology Deposit type, geological setting and style of mineralisation. •The Mt Usher prospect area lies within the Calliope terrane, a
package of lower to Middle Devonian volcanic sequences and related
plutonic rocks. The area is known as the Moongan Corridor which is
separated from the Mine Corridor - the host to the Mount Morgan
deposit - by a narrow zone of Mount Morgan Tonalite. The Mine
Corridor contains units of the Capella Creek Group, comprising an
upper dacitic division and a lower, low potassium rhyolitic division, all
of which is cut by a series of latite dykes and irregular shaped
intrusions, ranging from basalt to rhyolite in composition. Deposition
of the group in a marine basin at shallow to moderate water depth is
indicated by limestones and jasperoids.
•The geology of the Moongan Corridor was re-compiled by Hunter
from work by Newcrest and earlier mapping by Consolidated Zinc.
Newcrest mapped quartz feldspar porphyries within undifferentiated
Devonian volcanics. However, previous mapping by Consolidated
Zinc differentiated areas of predominantly acid volcanics and
fragmentals and intermediate varieties,with coarse intermediate
Criteria JORC Code explanation Commentary
fragmentals being further differentiated. These latter varieties were
interpreted, by previous Geopeko workers, to be equivalent of the
Dee Volcanics, although this has not been confirmed and here they
are interpreted to be more likely equivalents of the Upper Mine
Sequence. The predominantly acid volcanics lie in the western half of
the EPM and in the Belgamba area and have been variously known
as the Moongan Rhyolites and equivalents of the Mount Warner
Volcanics. Quartz feldspar porphyries mapped by Newcrest generally
are associated with the Moongan Rhyolite or the surrounding
intermediate pyroclastics.
The Capella Creek Group was intruded by a protracted series of
contiguous stocks known as the Mount Morgan Tonalite soon after
deposition. The intrusives are dominated by trondhjemite with lesser
tonalite and quartz diorite and quartz gabbro stocks. Together the
Capella Creek Group and the Mount Morgan Tonalite form a co-
geneticvolcano-plutonic suite.
Drill hole A summary of all information material to the understanding of the •Not applicable, no drillhole information quoted.
Information 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.
Data In reporting Exploration Results, weighting averaging techniques,
Not applicable no drillhole information quoted.
aggregation maximum and/or minimum grade truncations (eg cutting of high
methods 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.
Criteria JORC Code explanation Commentary Commentary
The assumptions used for any reporting of metal equivalent values
should be clearly stated.
Relationship
These relationships are particularly important in the reporting of
Not applicable no drillhole information quoted.
between Exploration Results.
mineralisatio
n widths and
intercept

If the geometry of the mineralisation with respect to the drill hole
angle is known, its nature should be reported.
lengths 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 Not applicable no drillhole information quoted.
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 all Exploration Results is not Not applicable no drillhole information quoted.
reporting 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 and material, should be reported
Not applicable, no other data reported.
substantive including (but not limited to): geological observations; geophysical
exploration survey results; geochemical survey results; bulk samples – size and
data 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 further work (eg tests for lateral
Not applicable no drillhole information quoted or planned at this
extensions or depth extensions or large-scale step-out drilling). time.
Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive.