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Sheffield Resources Ltd. Interim / Quarterly Report 2015

Jul 26, 2015

44780_rns_2015-07-26_d657d9e1-b8ae-4932-ada1-c23f6a74b72f.pdf

Interim / Quarterly Report

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Sheffield Resources Ltd ACN 125 811 083 L1, 57 Havelock Street West Perth WA

27 July 2015

QUARTERLY REPORT FOR PERIOD ENDING 30 JUNE 2015

HIGHLIGHTS

Thunderbird HMS project

  • PFS confirms the technical viability, long life and robust economics of the Thunderbird project and strengthens the case for development

  • At 18mt annual mining rate, Life of Mine (LOM) operating cash flow is estimated to be $4.3 billion ($163m per annum for the first 10 years)

  • Average LOM annual EBITDA of $120m ($148m for first 10 years)

  • Pre-production Capex of $367m + $26m contingency with payback period of 3.6 years

  • LOM revenue to cost ratio of 1.82:1 (2.03:1 for first 10 years)

  • Average annual production of 114,000t zircon, 439,000t ilmenite and 30,000t of HiTi84

  • Robust mine-to-port logistics chain

  • PFS update, due Q4 2015, will focus on the following key opportunities to further improve the already strong project economics:

  • Opportunities to reduce development capital and operating costs

  • Resource update (due soon) which will include high grade results from infill drilling

  • Upgrading of ilmenite product to suit a wider range of potential markets and to attract higher product prices

Fraser Range Nickel project

  • New, high-priority Ni-Cu drill target identified from ground EM survey at Red Bull

  • Five new nickel targets and seven gold targets identified from review of historic exploration data on recently granted tenements

Eneabba HMS project

  • First-pass drilling outlines four new HMS discoveries with high value mineral assemblage

Cash Position

  • Completion of sale of Oxley potash project tenements to Centrex Metals Ltd for $2.5m

As at 30/06/15:

Issued Shares 134.4M ASX Code SFX Closing Price $0.48 Market Cap $64.5M Cash Reserves $5.1M

Sheffield Resources Ltd ACN 125 811 083 L1/57 Havelock Street West Perth WA 6005 T: +61(0) 8 6424 8440 F: +61(0) 8 9321 1710

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SUMMARY

On 14 May the Company announced the results of a Pre-feasibility Study (PFS) on its flagship Thunderbird Mineral Sands project.

The PFS results confirm the technical viability, long life and robust economics of the Thunderbird project. The Company is targeting project construction commencing 2017 and initial production in 2019. The initial planned production profile is aligned with expected emerging supply gaps in global markets.

Work has commenced on a PFS update, due to be delivered in Q4 2015, which will incorporate a resource update, the results of ilmenite upgrade testwork and cost reduction initiatives, all currently in progress.

In the Fraser Range, ground EM and aircore drilling programs generated several promising targets for follow up work, including a bedrock conductor at the Stud prospect with coincident nickelcopper-cobalt anomalism from shallow aircore drilling.

Scout aircore drilling was undertaken on the Eneabba HMS and McCalls (Mindarra Springs) projects resulting in four new dunal-style HMS discoveries at Eneabba.

Exploration expenditure for the quarter is $1,814,000.

Figure 1: Location of Sheffield’s Projects

  • 3 -

THUNDERBIRD MINERAL SANDS

Sheffield’s flagship Thunderbird mineral sands project is located near Derby in Western Australia (Figures 1 & 2). Thunderbird is the largest zircon deposit to be discovered in the last 30 years.

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Figure 2: Location of Thunderbird HMS project

Thunderbird has mineral resources of 3.2Bt @ 6.8% HM (Measured, Indicated and Inferred) (at 3% HM cut-off), containing 95Mt of valuable heavy mineral (VHM), including 19.3Mt of zircon (Appendix 1, refer to ASX release dated 12 December 2015 for full details).

Within this is a coherent high grade zone of 1.080Bt @ 11.8% HM (Measured, Indicated and Inferred) (at 7.5% HM cut-off), containing 10.0Mt of zircon, 3.1Mt of high-titanium leucoxene, 2.8Mt of leucoxene and 36Mt of ilmenite.

The high in-situ VHM grades for this zone of 0.92% zircon, 0.28% high-titanium leucoxene, 0.25% leucoxene and 3.3% ilmenite place Thunderbird in the top tier of mineral sands deposits globally.

Thunderbird Pre-feasibility Results

The PFS confirms the technical viability, long life and strong economics of the Thunderbird project and strengthens the case for development. The PFS has been completed to a +/-25% confidence level (process engineering -12%+25%).

At a planned mining rate of 18Mtpa (2,430tph) after ramp-up, average annualised production over a 32-year mine life is estimated to be 114,000t of zircon, 439,000t of Ilmenite, and 30,000t of HiTi84 leucoxene.

At assumed pricing[1] of US$1,375/t for zircon, US$155/t for ilmenite and US$580/t for HiTi84 over the life of the mine, and an exchange rate of $US0.78, the project is anticipated to generate average operating cash flows of $134 million per annum. The life-of-mine (LOM) revenue is forecast to be $9.5 billion and C1 cash costs over the life of mine are $5.2 billion, giving a LOM revenue-to-cost ratio of 1.82:1 and average annual EBITDA of $120 million.

The first 10 years of scheduled mining incorporates higher grade mineralisation with less overburden, resulting in higher cash margins. The revenue-to-cost ratio for the first 10 years is 2.03:1, while the annual EBITDA for that period averages $148 million.

1 The price forecasts quoted for zircon and ilmenite are specific to the Thunderbird planned products and are based on TZMI’s price forecast with adjustment made for quality and likely target market placement. The pricing for the HiTi84 product is derived from a combination of industry sources.

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Table 1: Physicals Summary

Table 1: Physicals Summary
Years 1-10 LOM
Ore mined(mt) 179 580
Strip ratio(waste:ore) 0.22:1 0.68:1
HMC Produced(mt) 15.6 45.4
Production- Zircon(ktpa) 126 114
Production-HiTi 84(ktpa) 31 30
Production- Ilmenite(ktpa) 479 439

Table 2: Thunderbird PFS Key Project Economic Parameters

Years 1-10 LOM
Revenue **A$m ** 3,236 9,479
Average Operating Cash Flow(LOM) **A$mpa ** 163 134
EBITDA **A$mpa ** 148 120
EBIT **A$mpa ** 134 100
Unit Revenue A$/tonneproduct 510.16 508.26
Unit Revenue A$/tonne MUP feed 18.06 16.34
Cash operating costs(C1 costs) A$ tonneproduct 250.62 279.08
Cash operating costs(C1 costs) A$/tonne MUP feed 8.88 8.97
Royalties A$/tonneproduct 25.4 25.4
Revenue to Cost ratio(ex royalties) 2.03 1.82

Pre-production capital costs total $394 million, including $26.2 million contingency, with a payback period (before financing) of 3.6 years. The capex total includes a full mineral separation plant at the mine site. The estimated sustaining capital, including finance lease balloon payments, is $7.5m per annum.

Thunderbird is operating cash flow positive even at current depressed “spot” prices[2] , with LOM average annual EBITDA of $57m and LOM revenue-to-cost ratio of 1.42:1 without altering the mining rate or optimising the mine schedule towards higher grade ore.

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Figure 3: Projected annual sales revenue versus operating costs

2 Current spot pricing is sourced from Industrial Minerals and other industry sources: US$110/t ilmenite, US$1,100 primary zircon, US$500/t HiTi.

3 The mining inventory is based on pit optimisation studies which take into account a range of modifying factors such as mining loss, mineral recovery and pit wall slope.

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Potential remains for a staged approach to expansion of the project which will be explored further, however the PFS considers a single stage project as a solid foundation that generates strong cash margins over a very long mine life and provides for an effective and efficient use of capital.

Mining & Processing

The Mining Inventory[3] that forms the basis of the PFS is from the northern central portion of the Thunderbird Mineral Resource and comprises 580Mt at 11.7% HM , with in-situ grades of 0.94% zircon , 0.29% HiTi leucoxene , 0.29% leucoxene and 3.32% ilmenite (from Measured and Indicated Resources only).

The mining inventory equates to 32 years of scheduled production at an 18Mtpa mining rate. Mineralisation remains open beyond the 32-year pit shell outline, with optimisation studies indicating a further 12 years of production at 18Mtpa is possible.

The mining schedule commences in the northern up-dip region of the deposit, where high grade mineralisation occurs close to surface, then progresses southward following the shallow dip of the high grade zone. The waste-to-ore ratio averages 0.22:1 for the first 10 years of scheduled production and 0.68:1 over the 32-year life of mine.

The proposed mining method is a conventional dry mining technique involving large dozers and dozer trap mining units.

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Figure 4: Thunderbird Site Layout Plan

Wet Concentrator Plant moves will be required in production years 12, 20 and 28 (Figure 4). The final move in year 28 will allow further mining past the currently optimised 32-year pit shell if supported by global markets at the time.

The Mineral Separation Plant, the initial location of the movable Wet Concentrator Plant, a 16MW LNG/diesel power station and an initial Tailings Storage Facility will all be favourably located in an

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‘embayment’ in the orebody within optimal pumping distances (Figure 4). This has major operating cost advantages.

The processing flowsheet has been developed by leading mineral sands specialists Robbins Metallurgical Pty Ltd on the basis of metallurgical process development testwork during the Scoping Study, and during the PFS on a 12.5 tonne bulk sample using full-scale and scalable equipment. The product recoveries obtained from this work have been used in the PFS financial model.

Overall zircon recovery, excluding semi-processed and re-circulated streams, is calculated at 67%. The Primary (66.4% ZrO2) Zircon comprises 80% of the recovered zircon. A Secondary (65.1% ZrO2) and a Special (62.8% ZrO2) Zircon were also produced.

HiTi84 (87.7% TiO2) product recovery, excluding semi-processed or re-circulation streams is 37%.

Overall recovery of ilmenite to product is 65%. This product is an ilmenite with 49.1% TiO2 and is offset by a reduction in recovery to increase the TiO2 content and reduce Fe2O3 levels, resulting in a higher value product.

Product quality and marketability

Industry experts TZMI completed an assessment of the marketability of final products obtained from the 12.5t bulk sample metallurgical testwork, taking into account product quality and expected production volumes.

TZMI concluded that the primary zircon product is suitable for ceramic applications. The ceramics sector is the largest sector of the zircon market, with China being the largest importing country. TZMI do not see any issue with placing this material in the market due to the progressively growing supply gap beyond 2018. The secondary and special zircon can be sold as high grade concentrates to the zircon chemicals sector or to zircon concentrate processors, most of which are located in China.

The primary ilmenite product (49.1% TiO2) is a suitable feedstock for the sulphate-route TiO2 pigment process, or as a feed for titanium slag manufacture. The low levels of alkalis and chromium also make this ilmenite an attractive feedstock for blending with ilmenite from other deposits with higher levels of these contaminants.

The HiTi84 product (87.7% TiO2 content) has specifications suited to the welding electrode market, subject to further customer testing. The product may also be suitable for the titanium sponge market subject to further work to reduce slightly elevated tin levels.

Notwithstanding there is ongoing product development, currently there is no perceived impediment to the sale of full production volumes.

Logistics

Infrastructure studies undertaken during the PFS have determined a robust and straightforward mine-to-port supply chain for the Thunderbird mineral products.

The PFS assumes that bulk products will be transported by a fleet of 4 quad road trains from the mine to the Derby Port for storage and export. A storage warehouse facility and administration office will be constructed adjacent to the Derby wharf. Sheffield has been granted preferred proponent status for a bulk handling facility and product storage area at Derby port.

New road, and road upgrades from the mine to the sealed Great Northern Highway are required at an estimated cost of $10.1m.

Derby Port has previously been used for the export of up to 500,000tpa of base metal concentrates from Western Metal’s Lennard Shelf operations and is well suited to the export of mineral sands products.

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Development Schedule

Sheffield plans to complete a Definitive Feasibility Study in 2016, followed by mine construction commencing in 2017, followed by commissioning in 2018 and the first full year of production targeted for 2019, as per the schedule below.

Figure 5: Thunderbird Development Schedule

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2015 2016 2017 2018 2019
ACTIVITY
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2
Pre-Feasibility Study & Update
Permitting
Definitive Feasibility Study
Environmental Approvals
Infrastructure
Engineering and Construction
Commissioning
First Products
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Pre-feasibility Update

The PFS will be updated in H2 2015 to include positive infill drilling results yet to be incorporated and to focus on reducing capital and operating costs.

Further work is also being undertaken to optimise and/or reduce production throughputs, engineering and mine design and detailed mine scheduling to increase margins through improved efficiencies and reduced operating costs.

The next phase of metallurgical testwork will aim to further improve recoveries and product quality. A key focus will be the upgrading of ilmenite products to suit a wider range of potential markets and to attract higher product prices.

Permitting

Environment and permitting requirements are progressing in parallel with feasibility studies. Native title negotiations are progressing with respect to mining lease application M04/459. Three miscellaneous licences for project infrastructure were granted during the quarter.

2015 Field Campaign

Following completion of heritage surveys, drilling commenced subsequent to the end of the quarter. The 2015 drilling program aims to complete an infill pattern of 250m x 125m in the up-dip region of the deposit. This will enable more detailed mine scheduling to optimise cash flows in early production years.

It is also planned to obtain a 20t bulk sample of mineralisation from this area for DFS level process design and product development work. First pass drilling of regional exploration targets will also be undertaken.

Sheffield has a large tenement holding totalling 5,800km[2 ] in the emerging Canning Basin mineral sands province. The Company aims to generate further exploration targets during the second half of the year.

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FRASER RANGE NICKEL

Sheffield’s tenement holding in the Fraser Range region comprises 15 granted exploration licences and 2 exploration licence applications with a total area of total area of 2,131km[2] (Figure 6). During the quarter, field programs were undertaken on the Red Bull (E69/3052) and Big Bullocks (E39/1733) tenements. A comprehensive review of historical exploration records was completed for all project tenements.

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Figure 6: Location of Sheffield’s tenements in the Fraser Range region

Red Bull Nickel

During the quarter, high powered moving loop EM surveys were completed over the Northern Targets. This region features several areas of Ni-Cu-Co anomalism outlined by previous aircore drilling and soil sampling along an 8km strike length of a folded and faulted mafic/ultramafic complex (see ASX release dated 18 February 2015).

The most significant result from the survey was the discovery of a new bedrock conductor of moderate intensity located beneath significant Ni-Cu anomalism in shallow aircore drill holes at the Stud prospect. Stud was originally defined from two phases of exploration aircore drilling undertaken by Sheffield in the second half of 2013, outlining a coherent anomaly of >0.2% maximum Ni-in-hole over a strike length of 1.8km.

Southern Geoscience Consultants (SGC) have modelled the source of the conductive anomaly as large (~500m x 500m), striking NNE-SSW, with a vertical to 85 degree plunge to the ESE and a depth to top of ~150-200m (Figure 7).

Significant results from aircore drilling in the area immediately up-plunge from the modelled bedrock conductor include:

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  • 22m @ 0.39% Ni , 138ppm Cu, 272ppm Co, 7ppb Pt, from 32m (REAC240) including 5m @ 0.73% Ni , 168ppm Cu, 466ppm Co from 33m

  • 12m @ 0.32% Ni , 204ppm Cu, 337ppm Co, 8ppb Pt from 37m (REAC272)

  • 8m @ 0.15% Ni , 400ppm Cu, 261ppm Co, 14.5ppb Pd, 14.5ppb Pt from 22m (REAC250)

  • 12m @ 0.15% Ni , 152ppm Cu, 145ppm Co from 30m, 14.3ppb Pd (REAC239) including 4m @ 0.22% Ni , 192ppm Cu, 227ppm Co from 38m

(see ASX releases dated 12 September 2013 and 27 November 2013 for details)

In addition to the anomalous geochemical results, trace amounts of the nickel-sulphide mineral violarite (FeNi2S4) were observed in end-of-hole samples from two drill holes at Stud (REAC273 and REAC238 - see ASX release dated 27 November 2013).

Further, a previous MLTEM survey identified three localised zones of induced polarisation (IP) anomalism, immediately south along strike from the new bedrock conductor (see ASX release dated 7 July, 2014). The IP anomalism may be related to the presence of disseminated sulphide in the bedrock. Its location along strike from the bedrock conductor may represent a transition from a disseminated to semi-massive sulphide source.

The Stud prospect represents a compelling drill target due to the combination of bedrock conductor, strong nickel anomalism near surface and observed trace amounts of nickel sulphide.

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Figure 7: Stud prospect showing modelled bedrock conductor beneath extensive nickel geochemical anomalism in shallow aircore drill holes

Big Bullocks Nickel

The Big Bullocks project (E39/1733) is located in the northeast sector of the Fraser Range and straddles the major regional gravity ridge associated with the Fraser Complex (Figure 6).

A scout aircore drilling program of 110 holes for 3,432m was completed during the quarter. This is the first time the Big Bullocks tenement has been drilled for nickel.

Significantly, mafic/ultramafic intrusive complexes were identified, confirming the presence of rock types suitable for formation of magmatic nickel sulphide deposits.

In addition, two felsic intrusive units with sulphidic and potassic alteration and anomalous copper values were identified (BBAC027 and BBAC 049). Anomalous drill results are shown in Figure 8 and are discussed below.

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Figure 8: Big Bullocks geological interpretation and drill hole locations showing anomalous results

BBAC030 returned highest nickel values of 456ppm Ni (40-42m), and 336ppm Ni (42-43m, eoh) in a gabbro adjacent to an interpreted fault.

BBAC027 returned 596.8ppm Cu from 13-14m (eoh) in a sheared, quartz-rich felsic intrusive rock, with potassic alteration and ex-sulphide throughout. The association of anomalous copper with sulphides suggest the area may be a prospective copper-gold target.

BBAC049 returned 496.6ppm Cu from 13-14m (eoh) in a coarse-grained felsic intrusive rock, with abundant interstitial networks of ex-sulphide and moderate potassic alteration. This area is similarly considered a prospective copper-gold target.

BBAC068 returned 541ppb Au and 11ppm As from a single 4m composite (4-8m) within transported silcrete immediately above the interface with weathered bedrock (upper saprolite). Although there were no other anomalous gold values from this or adjacent drill holes, the value is considered significant enough to warrant follow-up work.

Sheffield also sampled and assayed several spoil piles from historic holes drilled by Ponton Minerals in the northwest corner of the Big Bullocks project (Figure 8). An anomalous end-of-hole nickel result reported by Ponton from drill FRNAC144 (from 36-39m) was confirmed by Sheffield’s sampling, returning values of 0.13% Ni (24-30m) and 0.17% Ni (30-34m) in a sheared anorthosite. This area is also considered worthy of follow-up work to investigate the extent of the anomalous nickel value.

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Follow-up drilling to investigate the anomalies and targets identified from this very broadly-spaced first-pass drilling program will be prioritised along with other work in the Fraser Range.

Nickel and Gold Targets on Recently Granted Tenements

A review of historic exploration has identified five new significant nickel targets and seven advanced gold targets on recently granted tenements E28/2481 “Oak Dam”, E28/2453 “Theo” and E63/1696 “Leila”. These tenements are located around 50km to the north of Sirius’s Nova/Bollinger Nickel-Copper deposit within the northern foreland region of the Tropicana Belt (Figure 6).

A substantial amount of historical, shallow, early stage exploration has been completed over the tenements, providing well defined nickel and gold targets for follow up work.

The five nickel targets, named Dreadnought, Depth Charge, Lifeboat, Torpedo and Frigate, occur on the Oak Dam tenement. They are defined by historical auger soil sampling undertaken by AngloGold Ashanti Ltd. The nickel soil anomalies with peak values ranging from 167-1,274ppm Ni are associated with magnetic highs (Figure 9) and sporadic outcrop of ultramafic rocks.

Only one nickel anomaly has been tested by drilling, as gold was the principal focus of previous exploration. Limited reconnaissance rock chip sampling undertaken by Sheffield has confirmed elevated nickel values (up to 1.15% Ni) associated with these targets.

The targets are associated with ultramafic rocks that are thought to have intruded deep-seated structures separating the Yilgarn Craton from the Fraser Complex.

The tenements also contain seven gold targets delineated by early stage historic shallow drilling programmes by explorers targeting the region for Tropicana style gold mineralisation. Only a few of these have been tested by deeper RC drilling, with encouraging results.

Further details of the nickel and gold targets are provided in Sheffield’s ASX release dated 3 July 2015.

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Figure 9: E28/2481 Oak Dam nickel soil anomalies, nickel and gold prospects on magnetic image

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ENEABBA HEAVY MINERAL SANDS

A program of 92 shallow aircore drill holes totalling 2,664m was undertaken as an initial test of dunal-style HMS targets along the Gingin scarp (an ancient coastal cliff) to the east and north of Eneabba. Historically, most mineral sands mining and exploration at Eneabba has targeted strandlines located to the west of this feature (Figure 10).

The drilling resulted in the discovery of four new dunal mineral sands prospects named Robbs Cross, Thomson, Ding Road and Mt Adams. Highlights of the drilling are shown below:

Robbs Cross

  • 21m @ 1.96% HM from 3m (RCAC001), including 9m @ 2.76% HM from 12m

  • 19.5m @ 1.98% HM from 3m (RCAC005), including 9m @ 2.58% HM from 10.5m

  • mineral assemblage: 12.5% rutile, 14.7% zircon, 4.1% leucoxene, 47% ilmenite

  • mineralised area (>2% HM) of 1km x 600m, up to 9m thick, within a broader halo of lower grade (0.9%-2.0% HM) mineralisation

Ding Road

  • 10.5m @ 2.35% HM from 0m (DCAC153), including 6m @ 3.02% HM from 3m

  • 9m @ 2.70% HM from 0m (DCAC154),including 7.5m @ 2.97% HM from 0m

  • mineral assemblage: 15.4% rutile , 20.3% zircon, 3.8% leucoxene, 44% ilmenite

  • 1km of mineralisation, up to 7.5m thick, defined by a single line of holes

Thomsons

  • 22.5m @ 2.16% HM from 0m (TMAC016), including 4.5m @ 4.37% HM from 18m

  • 16.5m @ 1.83% HM from 0m (TMAC005), including 7.5m @ 2.22% HM from 6m

  • mineral assemblage: 12.3% rutile, 15.1% zircon, 3.6% leucoxene, 50% ilmenite

  • two mineralised zones (upper and lower) within a 2.5km x 1.5km area, plus an outlier intersection of 24m @ 1.64% HM from surface (TMAC013)

Mt Adams

  • 10.5m @ 2.11% HM from 0m (MAAC017), including 7.5m @ 2.48% HM from 1.5m

  • mineral assemblage: 10.4% rutile, 13% zircon, 2.1% leucoxene, 57% ilmenite

  • mineralised area (>0.9% HM) of 1.7km x 850m, average 6m thick

(See ASX release dated 23 July 2015 for details)

There is little or no overburden associated with these prospects and, in each case, mineralisation remains open in most directions.

The current high grade resource at Sheffield’s Eneabba Project comprises 172Mt at 3.0% HM in five deposits (Table 3 and Appendix 1). Of these, the Drummond Crossing resource, with its combined zircon and rutile assemblage of 24%, is most similar in setting and style to the dunal prospects outlined by recent drilling. The four recent discoveries have combined zircon and rutile assemblages of between 23% and 36%.

Table 3: Eneabba Resource Summary (see Appendix 1 for full details)

Table 3: Eneabba Resource Summary (see Appendix 1 for full details)
Deposit
Resource
Category
Cutoff
HM%
Material
Million
Tonnes
HM
%
Mineral Assemblage
Zircon
%
Rutile
%
Leucoxene
%
Ilmenite
%
Yandanooka
Meas+Ind+Inf
1.4
60
3.1
12
3.4
3.6
70
West Mine North
Meas+Ind
1.5
18
5.1
6.7
9.7
6.3
59
Durack
Ind+Inf
1.5
24
3.0
14
2.8
4.5
70
Drummond Crossing
Ind+Inf
1.1
52
2.1
14
10
3.5
53
Ellengail
Inf
1.5
18
3.9
8.9
8.7
1.9
64
Total
All
var.
172
3.0
12
6.5
3.8
63
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The dunal deposits of the Eneabba region are typically rich in zircon and rutile and the ilmenite is generally high grade (>60% TiO2) and suitable as feedstock for the chloride pigment process or as synthetic rutile feedstock. The deposits are broad, up to 20m thick, have little or no overburden and sit above the water table – factors which contribute to simple, low-cost mining. Sheffield recently expanded its total tenement holding in the Eneabba region to 862km[2] with applications for 3 new exploration licences. Sheffield now has full coverage over 70km of the prospective corridor to the east of the Gingin Scarp (Figure 10).

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Figure 10: Eneabba Project plan on elevation image

MCCALLS HEAVY MINERAL SANDS

The McCalls project, located 110km north of Perth, has an Inferred Resource of 4.4Bt @ 1.2% HM containing 53Mt of HM (Appendix 1). Of this, 43 million tonnes is chloride grade ilmenite (66% TiO2) ranking McCalls as one of the largest undeveloped chloride ilmenite deposits in the world.

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The McCalls project includes the Mindarra Springs deposit, located 20km to the south McCalls. BHP explored Mindarra Springs for mineral sands in the mid-1990’s and drilled approximately 150 aircore drill holes through the area. Sheffield has previously announced an Exploration Target[4] based on this drilling of approximately 1.7-2.2Bt @ 1.4%-1.6% HM (refer to Sheffield’s September 2014 Quarterly Report, dated 28 October 2014 for details).

At Mindarra Springs, six holes totalling 219m were drilled at 500m spacing along an existing road for the primary purpose of collecting sample for ilmenite characterisation test work. The mineralised intervals and assemblage data from the drilling are within the ranges predicted, confirming the quality of the historic BHP drilling. For example the best interval of 16.5m @ 2.17% HM from 10.5m in hole MSAC005, including 9m @ 2.78% HM from 16.5m . The mineral assemblage has a very high proportion of valuable heavy mineral, comprising 3.9% rutile, 3.8% zircon, 2.3% leucoxene and 81% ilmenite (total 91% VHM) and is similar to the mineral assemblage at McCalls.

OXLEY POTASH

Sheffield completed the sale of Oxley Potash tenements E70/4318, E70/3777, E70/4004, E70/4320, E70/4319 and E70/4378 to Centrex Metals Limited (ASX:CXM) for a total consideration of A$2.5 million. A final payment of A$1.5 million was received during the quarter.

OTHER

Several tenement applications were lodged in the eastern Pilbara targeting copper and manganese (Oakover project, Figure 1). No work was undertaken on the Pilbara Iron project during the quarter.

CASH POSITION

As at 30 June 2015, the Company had cash reserves of approximately $5.1 million.

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Bruce McQuitty Managing Director 27 July 2015

4 Sheffield Resources has not yet reported any Mineral Resources for Mindarra Springs and any discussion in relation to the potential quantity of the targets is conceptual in nature. There has been insufficient exploration to define a Mineral Resource and it is uncertain if further exploration will result in the determination of a Mineral Resource. Figures have been rounded to reflect the implied level of accuracy.

  • 15 -

Schedule 1: Interests in Mining Tenements at the end of the quarter as required under ASX Listing Rule 5.3.3

Project Tenement **Holder ** Interest Location~~3~~ Status
Mineral Sands E04/2081 Sheffield Resources Ltd 100% Canning Basin Granted
Mineral Sands E04/2083 Sheffield Resources Ltd 100% CanningBasin Granted
MineralSands E04/2084 SheffieldResourcesLtd 100% CanningBasin Granted
Mineral Sands E04/2159 Sheffield Resources Ltd 100% Canning Basin Granted
Mineral Sands E04/2171 Sheffield Resources Ltd 100% Canning Basin Granted
Mineral Sands E04/2192 Sheffield Resources Ltd 100% Canning Basin Granted
Mineral Sands E04/2193 Sheffield Resources Ltd 100% Canning Basin Granted
MineralSands E04/2194 SheffieldResourcesLtd 100% CanningBasin Granted
Mineral Sands E04/2348 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2349 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2350 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2386 Sheffield Resources Ltd 100% Canning Basin Pending
MineralSands E04/2390 SheffieldResourcesLtd 100% CanningBasin Pending
Mineral Sands E04/2391 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2392 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2393 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2394 Sheffield Resources Ltd 100% Canning Basin Pending
MineralSands E04/2399 SheffieldResourcesLtd 100% CanningBasin Pending
Mineral Sands E04/2400 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands E04/2401 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands M04/459 Sheffield Resources Ltd 100% Canning Basin Pending
Mineral Sands L04/82 Sheffield Resources Ltd 100% Canning Basin Pending
MineralSands L04/83 SheffieldResourcesLtd 100% CanningBasin Pending
Mineral Sands L04/84 Sheffield Resources Ltd 100% Canning Basin Granted
MineralSands L04/85 SheffieldResourcesLtd 100% CanningBasin Granted
Mineral Sands L04/86 Sheffield Resources Ltd 100% Canning Basin Granted
Mineral Sands E70/3762 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands E70/3812 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3813 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3814 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3846 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands E70/3901 SheffieldResourcesLtd 100% Perth Basin Granted
Mineral Sands E70/3929 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3931 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3967 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands E70/3970 SheffieldResourcesLtd 100% Perth Basin Granted
Mineral Sands E70/4190 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands E70/4292 SheffieldResourcesLtd 100% Perth Basin Granted
Mineral Sands E70/4313 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/4314 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/4434 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands E70/4584 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands M70/8721 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands M70/9651 Sheffield Resources Ltd 100% Perth Basin Granted
MineralSands M70/1153~~1~~ SheffieldResourcesLtd 100% Perth Basin Granted
MineralSands R70/351 Sheffield Resources Ltd 100% Perth Basin Granted
Mineral Sands E70/3859 Sheffield Resources Ltd 100% Perth Basin Pending
Mineral Sands L70/150 Sheffield Resources Ltd 100% Perth Basin Pending
Mineral Sands E70/4719 Sheffield Resources Ltd 100% Perth Basin Pending
Nickel E69/3033 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E69/3052 SheffieldResourcesLtd 100% Fraser Range Granted
Nickel E28/2270 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E39/1733 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2374-I Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2448 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2449 SheffieldResourcesLtd 100% Fraser Range Granted
Nickel E28/2450 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2323 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2430 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2431 Sheffield Resources Ltd 100% Fraser Range Granted
Nickel E28/2428 SheffieldResourcesLtd 100% Fraser Range Granted
Nickel E69/3181 Sheffield Resources Ltd 100% Fraser Range Pending
Gold E63/1696 Sheffield Resources Ltd 100% Tropicana Belt Granted
  • 16 -
Project Tenement Holder Interest Location Status
Nickel/Gold E28/2481 Sheffield Resources Ltd 100% TropicanaBelt Granted
Gold E28/2453 Sheffield Resources Ltd 100% TropicanaBelt Granted
Nickel E39/1865 Sheffield Resources Ltd 100% Tropicana Belt Pending
Iron E45/3662-I Ironbridge Resources PtyLtd~~2~~ 100% Pilbara Granted
Iron E45/3822-I Sheffield Resources Ltd 100% Pilbara Granted
Iron E45/4029 Sheffield Resources Ltd 100% Pilbara Granted
Iron E47/3031-I Sheffield Resources Ltd 100% Pilbara Pending
Manganese E46/1041 SheffieldResourcesLtd 100% Pilbara Pending
Manganese E46/1042 Sheffield Resources Ltd 100% Pilbara Pending
Manganese E46/1044 Sheffield Resources Ltd 100% Pilbara Pending
Manganese E45/4558 Sheffield Resources Ltd 100% Pilbara Pending
Manganese E45/4573 Sheffield Resources Ltd 100% Pilbara Pending
Manganese E45/4574 SheffieldResourcesLtd 100% Pilbara Pending
Manganese E46/1069 Sheffield Resources Ltd 100% Pilbara Pending
Manganese E46/1070 SheffieldResourcesLtd 100% Pilbara Pending

Notes: 1Iluka Resources Ltd (ASX:ILU) retains a gross sales royalty of 1.5% in respect to tenements R70/35, M70/872, M70/965 & M70/1153. 2 Ironbridge Resources Pty Ltd is a 100% owned subsidiary of Sheffield Resources Ltd. 3All tenements are located in the state of Western Australia.

Details of tenements and/or beneficial interests acquired/disposed of during the June 2015 Quarter are provided in Section 6 of the Company’s Appendix 5B notice for the June 2015 Quarter.

COMPLIANCE STATEMENTS

PREVIOUSLY REPORTED INFORMATION

This report includes information that relates to Exploration Results, Exploration Targets, Mineral Resources and a Pre-feasibility Study which were prepared and first disclosed under the JORC Code 2012. The information was extracted from the Company’s previous ASX announcements as follows:

  • Thunderbird Pre-feasibility Study: “PRE-FEASIBILITY STUDY CONFIRMS THUNDERBIRD AS NEXT MAJOR MINERAL SANDS PROJECT IN GLOBAL DEVELOPMENT PIPELINE” , 14 May 2015

  • Thunderbird Resource Update: “THUNDERBIRD HIGH GRADE RESOURCE SURPASSES ONE BILLION TONNES” , 12 December 2014

  • Thunderbird Drilling Results: “EXCEPTIONALLY HIGH GRADES FROM INFILL DRILLING AT THUNDERBIRD MINERAL SANDS PROJECT”, 15 February 2015

  • Red Bull Results: “LARGE Ni-Cu-Co ANOMALIES IDENTIFIED IN THE FRASER RANGE” , 11 February, 2014

  • Red Bull EM and Big Bullocks aircore drilling: “COMPELLING NEW DRILL TARGET IDENTIFIED FROM GROUND EM SURVEY AT RED BULL NICKEL PROJECT” , 23 June 2015

  • New Fraser Range Nickel & Gold targets: ”TWELVE NEW NICKEL AND GOLD TARGETS OUTLINED IN FRASER RANGE” , 3 July 2015

  • Eneabba and Mindarra Springs Drilling Results: “NEXT GENERATION OF MINERAL SANDS DISCOVERIES AT ENEABBA” , 23 July 2015

  • Mindarra Springs Exploration Target: “QUARTERLY REPORT FOR PERIOD ENDING 30 SEPTEMBER 2014” , 28 October 2014

This report also includes information that relates to Exploration Results and Mineral Resources which were prepared and first disclosed under the JORC Code 2004. The information has not been updated since to comply with the JORC Code 2012 on the basis that the information has not materially changed since it was last reported. The information was extracted from the Company’s previous ASX announcements as follows:

  • Ellengail Mineral Resource: “1MT CONTAINED HM INFERRED RESOURCE AT ELLENGAIL” , 25 October 2011.

  • West Mine North Mineral Resource: “WEST MINE NORTH MINERAL RESOURCE ESTIMATE EXCEEDS EXPECTATIONS” , 7 November 2011.

  • McCalls Mineral Resource: “4.4 BILLION TONNE MAIDEN RESOURCE AT MCCALLS HMS PROJECT” , 20 February 2012.

  • Durack Mineral Resource: “ENEABBA PROJECT RESOURCE INVENTORY EXCEEDS 5MT HEAVY MINERAL” 28 August 2012.

  • Yandanooka Mineral Resource: “YANDANOOKA RESOURCE UPGRADE AND METALLURGICAL RESULTS” 30 January 2013.

  • Drummond Crossing Mineral Resource and Sampling Results from Dunal-Style HM Targets, Eneabba Project: “1Mt HEAVY MINERAL RESOURCE ADDED TO ENEABBA PROJECT” , 30 October 2013.

These announcements are available to view on Sheffield Resources Ltd’s web site www.sheffieldresources.com.au

  • 17 -

The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and, in the case of estimates of Mineral Resources and Pre-feasibility Study results, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

FORWARD LOOKING STATEMENTS

Some statements in this report regarding estimates or future events are forward-looking statements. They involve risk and uncertainties that could cause actual results to differ from estimated results. Forward-looking statements include, but are not limited to, statements concerning the Company’s exploration programme, outlook, target sizes and mineralised material estimates. They include statements preceded by words such as “anticipated”, “expected”, “target”, “scheduled”, “intends”, “potential”, “prospective” and similar expressions.

  • 18 -

APPENDIX 1: MINERAL RESOURCES

Table 1: Sheffield’s contained Valuable HM (VHM) Resource inventory at 12 December 2014

Deposit Resource
Category
Zircon
(kt)
Rutile
(kt)

HiTi Leuc.
(kt)*
Leuc.
(kt)*
Ilmenite
(kt)
Total VHM
(kt) **
Thunderbird
Thunderbird
Thunderbird
Yandanooka
Yandanooka
Yandanooka
Durack
Durack
Drummond Crossing
Drummond Crossing
Ellengail
West Mine North
West Mine North
McCalls
Measured
Indicated
Inferred
Measured
Indicated
Inferred
Indicated
Inferred
Indicated
Inferred
Inferred
Measured
Indicated
Inferred
500
-
200
15,900
-
5,200
2,800
-
1,000
13
2
240
81
4
1
144
29
26
5
143
101
7
5
92
90
18
33
71
87
3,490
1,060
200
6,500
1,300
3
83
2
52
13
37
1
19
42
46
2,580
1,800
2,600
50,400
78,100
9,000
14,100
87
105
1,440
1,840
23
29
703
928
121
164
542
823
28
41
658
859
200
293
506
709
42,910
50,040
Total
Total
Total
Measured
Indicated
Inferred
530
35
200
16,500
300
5,200
6,420
1,160
1,000
245
6,720
3,915
2,090
3,100
53,590
82,310
52,740
65,235
Total All 23,450
1,500
6,400
10,880 108,420
150,650

All tonnages have been rounded to reflect the relative uncertainty of the estimate, thus sum of columns may not equal. The contained VHM tonnages in the above table are derived from Mineral Resource Estimates for the Yandanooka, Ellengail , West Mine North, McCalls, Durack deposits (estimated using a 0.9% HM cut-off), the Drummond Crossing deposit (estimated using a 1.1% HM cut-off) and the Thunderbird deposit (estimated using a 3% HM cut-off) as detailed in Table 2. * Valuable Heavy Minerals are classified as zircon, rutile, HiTi leucoxene, leucoxene and ilmenite.

  • 19 -

Table 2: Sheffield’s HMS Mineral Resource[2] Inventory at 12 December 2014

Project Deposit Resource
Category
Cut-off
(%
HM)3
Material
(Mt)*
Bulk
Density
HM
%
Slimes %3
Osize
%
Insitu HM
(Mt)*
Zircon2
%
Rutile2
%
HiTi2
Leuc. %
Leuc.2
%
Ilm.2
%
Dampier Thunderbird Measured 3.0
75
2.1
7.9
19
11
6 9.3
-
2.7
2.7
30
Thunderbird Indicated 3.0
2,550
2.1
7.0
16
9
180 8.9
-
2.9
3.6
28
Thunderbird Inferred 3.0
580
2.0
5.6
16
9
32 8.8
-
3.0
4.1
28
Total Dampier All 3.0
3,205
2.1
6.8
16
9
218 8.9
-
2.9
3.7
28
Eneabba Yandanooka Measured 0.9
3
2.0
4.1
15
14
0.1 11
1.9
-
2.2
72
Yandanooka Indicated 0.9
90
2.0
2.3
16
15
2.1 11
3.9
-
3.9
69
Yandanooka Inferred 0.9
3
2.0
1.2
18
21
0.03 11
3.9
-
4.6
68
Yandanooka All 0.9
96
2.0
2.3
16
15
2.2 11
3.8
3.9
69
Durack Indicated 0.9
50
2.0
2.0
15
21
1.0 14
2.8
5.1
69
Durack Inferred 0.9
15
1.9
1.2
14
17
0.2 14
2.5
7.2
66
Durack All 0.9
65
2.0
1.8
15
20
1.2 14
2.8
5.6
68
Drummond Crossing Indicated 1.1
49
2.0
2.1
16
9
1.0 14
10
3.6
53
Drummond Crossing Inferred 1.1
3
2.0
1.5
16
8
0.05 13
10
2.8
55
Drummond Crossing All 1.1
52
2.0
2.1
16
9
1.1 14
10
3.5
53
Ellengail Inferred 0.9
46.
2.0
2.2
16
2
1.0 8.9
8.7
1.9
64
Ellengail All 0.9
46
2.0
2.2
16
2
1.0 8.9
8.7
1.9
64
West Mine North Measured 0.9
6
2.0
5.6
15
1
0.4 4.9
9.1
12
55
West MineNorth Indicated 0.9
36
1.9
2.3
13
3
0.8 8.4
10
5.4
60
West Mine North All 0.9
43
1.9
2.8
13
3
1.2 7.9
10
6.4
59
Total Eneabba Measured var.
9
2.0
5.2
15
5
0.5 6.7
6.8
8.7
60
Total Eneabba Indicated var.
225
2.0
2.2
15
13
5.0 12
6.0
4.4
64
Total Eneabba Inferred var.
68
2.0
1.9
15
6
1.3 10
7.2
3.2
64
Total Eneabba All var.
302
2.0
2.2
15
11
6.8 12
6.3
4.2
64
McCalls McCalls Inferred 0.9
4,431
2.3
1.2
27
1.4
53 6.6
2.0
4.9
81
Total McCalls All 0.9
4,431
2.3
1.2
27
1.4
53 6.6
2.0
4.9
81

* All tonnages and grades have been rounded to reflect the relative uncertainty of the estimate and maintain consistency throughout the table, thus sum of columns may not equal. 1 See the compliance statements in this report for important information relating to the reporting of these Mineral Resources. 2 The Mineral Assemblage is represented as the percentage of the Heavy Mineral (HM) component of the deposit, determined by QEMSCAN for Eneabba & McCalls, with TiO2 minerals defined according to the following ranges: Rutile >95% TiO2; Leucoxene 85-95% TiO2; Ilmenite <55-85% TiO2; for Dampier the mineral assemblage was determined by screening and magnetic separation. Magnetic fractions were analysed by QEMSCAN for mineral determination as follows: Ilmenite: 40-70% TiO2 >90% Liberation; Leucoxene: 70-94% TiO2 >90% Liberation; High Titanium Leucoxene (HiTi Leucoxene): >94% TiO2 >90% Liberation; and Zircon: 66.7% ZrO2+HfO2 >90% Liberation. Non-magnetic fractions were submitted for XRF analysis and minerals determined as follows: Zircon: ZrO2+HfO2/0.667 and High Titanium Leucoxene (HiTi Leucoxene): TiO2/0.94.[3] West Mine North, Drummond Crossing, Durack and McCalls deposits are reported below 35% slimes cut-off.

  • 20 -

Table 3: Eneabba Project contained Valuable HM (VHM) inventory[1 ] (at high grade cut off)

Deposit Resource Zircon Rutile Leuc. Ilmenite
Total
Category (kt)* (kt)* (kt)* (kt)* VHM (kt)*
Yandanooka Measured 13 2 3 87 104
Yandanooka Indicated 202 60 62 1,190 1,510
Yandanooka Inferred 1 0.2 0.3 5 6
Yandanooka Total 215 62 65 1,280 1,620
West Mine North Measured 15 32 34 183 264
West Mine North Indicated 43 58 30 351 481
West Mine North Total 58 89 64 534 745
Durack Indicated 98 20 32 492 641
Durack Inferred 4 1 1 21 27
Durack Total 102 21 33 513 668
Drummond Crossing Indicated 143 101 37 542 823
Drummond Crossing Inferred 7 5 1 28 41
Drummond Crossing Total 150 107 38 569 864
Ellengail Inferred 60 59 13 431 564
Ellengail Total 60 59 13 431 564
Total Measured 28 34 37 270 368
Total Indicated 486 239 160 2,570 3,450
Total Inferred 72 65 16 485 638
Total All 585 337 213 3,320 4,460
  • *’kt’ (kilotonnes) have been rounded to reflect the relative uncertainty of the estimate.

1 The data summarised in this Table is sourced from the Table above.

  • 21 -

Table 4: Eneabba Project Mineral Resource[1] inventory (at high grade cut off)

Deposit Resource Cutoff Material Bulk HM Slimes
Osize

In-situ HM

Zircon
Rutile
Leucoxene

Ilmenite
Category HM% Million Density
%
%3 % Million % % % %
Tonnes* Tonnes*
Yandanooka Measured 1.4 3 2.0 4.2 15 13 0.1 11 1.9 2.2 72
Yandanooka Indicated 1.4 57 2.0 3.0 16 15 1.7 12 3.5 3.6 70
Yandanooka Inferred 1.4 0.4 2.0 1.6 15 14 0.01 11 3.2 4.9 71
Yandanooka Total 1.4 60 2.0 3.1 16 15 1.8 12 3.4 3.6 70
West Mine North Measured 1.5 4 2.0 8.3 14 1 0.3 4.5 9.4 10 55
West Mine North Indicated 1.5 14 1.9 4.2 11 3 0.6 7.3 9.8 5.2 60
West Mine North Total 1.5 18 1.9 5.1 11 2 0.9 6.7 9.7 6.3 59
Durack Indicated 1.5 23 1.9 3.0 14 19 0.7 14 2.9 4.5 70
Durack Inferred 1.5 1.1 1.9 2.6 12 21 0.03 14 1.9 4.0 75
Durack Total 1.5 24 1.9 3.0 14 19 0.7 14 2.8 4.5 70
Drummond Crossing Indicated 1.1 49 2.0 2.1 16 9 1.0 14 10 3.6 53
Drummond Crossing Inferred 1.1 3 2.0 1.5 16 8 0.05 13 10 2.8 55
Drummond Crossing Total 1.1 52 2.0 2.1 16 9 1.1 14 10 3.5 53
Ellengail Inferred 1.5 18 2.0 3.9 15 2 0.7 8.9 8.7 1.9 64
Ellengail Total 1.5 18 2.0 3.9 15 2 0.7 8.9 8.7 1.9 64
Total Measured var. 7 2.0 6.6 14 6 0.5 7.0 6.3 6.9 62
Total Indicated var. 142 2.0 2.8 15 13 4.0 12 6.2 3.9 63
Total Inferred var. 23 2.0 3.4 15 4 0.8 9.8 8.5 2.2 63
Total All var. 172 2.0 3.0 15 11 5.2 12 6.5 3.8 63

*Tonnes have been rounded to reflect the relative uncertainty of the estimate.

1 This estimate is classified and reported in a manner compliant with the JORC code and guidelines (JORC, 2004). Further details on the Mineral Resource at each deposit can be found on the ASX Announcements page of the Company's website.

2 The Mineral Assemblage is represented as the percentage of the Heavy Mineral (HM) component of the deposit, as determined by QEMSCAN. TiO2 minerals defined according to the following ranges: Rutile >95% TiO2; Leucoxene 85-95% TiO2; Ilmenite <55-85% TiO2. 3 West Mine North, Durack and Drummond Crossing are reported below a 35% Slimes upper cut-off.