Addendum to ASX Announcement, Resource & Reserve Update, 4 August 2015

PARADIGM SIGNIFICANT INTERSECTIONS

Drill Hole

#

Easting

(GDA)

Northing

(GDA)

Drill hole collar RL (GDA)

Dip

(degrees)

Azimuth (degrees, GDA)

End of hole depth (m)

Downhole From (m)

Downhole

To

(m)

Downhole Intersection (m)

Au (gpt) uncut

Est True Thickness (m)

PDCD15005A

301938

6627063

424

-60

40

354.0

284.3

287.2

2.9

5.6

2.9

PDCD15005A

301938

6627063

424

-60

40

354.0

290.0

292.0

2.0

0.9

2.0

PDCD15005A

301938

6627063

424

-60

40

354.0

299.0

300.1

1.1

2.9

1.1

PDCD15005A

301938

6627063

424

-60

40

354.0

323.0

325.4

2.4

1.9

2.4

PDCD15005A

301938

6627063

424

-60

40

354.0

329.0

331.4

2.4

1.7

2.4

PDDD15010

301978

6627107

424

-60

40

273.0

40.0

237.0

197.0

2.4

147.8

Including

40.0

41.0

1.0

16.0

1.0

65.0

83.0

18.0

17.7

18.0

125.0

126.0

1.0

1.5

1.0

127.0

130.0

3.0

1.3

1.0

135.0

136.0

1.0

5.1

1.0

143.0

145.8

2.8

4.6

2.8

149.0

150.0

1.0

1.0

1.0

161.0

163.0

2.0

1.0

2.0

172.0

174.0

2.0

1.2

2.0

206.0

209.0

3.0

25.6

3.0

217.0

218.0

1.0

3.7

1.0

236.0

237.0

1.0

5.1

1.0

PDDD15010

301978

6627107

424

-60

40

273.0

264.0

265.0

1.0

2.1

1.0

PDRC15006

302016

6626996

422

-60

40

402.0

192.0

195.0

3.0

50.4

2.3

PDRC15007

302055

6627042

422

-60

40

305.8

140.0

141.0

1.0

6.4

0.8

PDRC15008

302039

6627101

422

-60

40

216.0

142.0

150.0

8.0

2.6

6.0

PDRC15009

302078

6627147

422

-60

40

138.0

56.0

58.0

2.0

2.5

1.5

Criteria JORC Code explanation Commentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling.

All drillholes referenced in this release were either diamond drilling or RC.

Sampling techniques

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

RC samples were split using a rig-mounted cone splitter on 1m intervals to obtain a sample for assay.

Sampling techniques

Aspects of the determination of mineralisation that are Material to the Public Report. In

cases where 'industry standard' work has been done this would be relatively simple (eg

'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation

may be required, such as where there is coarse gold that has inherent sampling

problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Samples were taken to Genalysis Kalgoorlie for preparation by drying, crushing to

Drilling techniques

Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.).

Paradigm North: Both RC and diamond techniques were used for recent drilling. Diamond core was typically

NQ2 and RC drilling was completed using a 5.75" drill bit.

Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

Moisture content and sample recovery is recorded for each RC sample.

Drill sample recovery

Measures taken to maximise sample recovery and ensure representative nature of the samples.

RC drilling contractors adjust their drilling approach to specific conditions to maximise sample recovery. Moisture content and sample recovery is recorded for each RC sample. No recovery issues were identified during 2014 - 2015 RC drilling. Recovery was poor at the very beginning of each hole, as is normal for this type of drilling in overburden.

Drill sample recovery

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.

No relationship or bias has identified between grade and sample recovery.

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.

RC sample chips are logged in 1m intervals. For the entire length of each hole. Regolith, Lithology, alteration, veining and mineralisation are all recorded

Logging

Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography.

All logging is quantitative where possible and qualitative elsewhere. A photograph is taken of every chip tray.

Logging

The total length and percentage of the relevant intersections logged.

In all instances, the entire drill hole is logged.

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

For recent Paradigm North results, all holes were cut and half core sent to the lab. The remained was stored for reference

Sub-sampling techniques and sample preparation

If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry.

All RC samples are split using a rig-mounted cone splitter to collect a 1m sample 3-4kg in size. All samples were intended and assumed to be dry, moisture content was recorded for every sample.

Sub-sampling techniques and sample preparation

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Sample preparation was conducted at Genalysis Kalgoorlie, commencing with sorting, checking and drying at less than 110°C to prevent sulphide breakdown. Samples are jaw crushed to a nominal -6mm particle size. If the sample is greater than 3kg a Boyd crusher with rotary splitter is used to reduce the sample size to less than 3kg (typically 1.5kg) at a nominal

Criteria JORC Code explanation Commentary

pulverised to 90% passing 75µm, using a Labtechnics LM5 bowl pulveriser. 300g Pulp subsamples are then taken with an aluminium scoop and stored in labelled pulp packets

Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

Grind checks are performed at both the crushing stage(3mm) and pulverising stage (75µm), requiring 90% of material to pass through the relevant size.

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.

Field duplicates were taken for RC samples at a rate of 1 in 50.

Whether sample sizes are appropriate to the grain size of the material being sampled.

Sample sizes are considered appropriate.

Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

A 50g Fire assay charge is used with a lead flux, dissolved in the furnace. The prill is totally digested by HCl and

HNO3 acids before Atomic absorption spectroscopy (AAS) determination for gold analysis.

Quality of assay data and 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.

No geophysical tools were used to determine any element concentrations

Quality of assay data and laboratory tests

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie. lack of bias) and precision have been established.

Certified reference materials (CRMs) are inserted into the sample sequence randomly at a rate of 1 per 20 samples to ensure correct calibration. Any values outside of 3 standard deviations are re-assayed with a new CRM.

Blanks are inserted into the sample sequence at a rate of 1 per 20 samples, This is random, except where high grade mineralisation is expected. Here, a Blank is inserted after the high grade sample to test for contamination. Failures above 0.2gpt are followed up, and re-assayed. New pulps are prepared if failures remain.

Field Duplicates are taken for all RC samples (1 in 50 samples). No Field duplicates are submitted for diamond core.

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

All significant intersections are verified by another Northern Star geologist during the drill hole validation process, and later by a Competent person to be signed off.

Verification of sampling and assaying

The use of twinned holes.

No Twinned holes were drilled for this data set.

Verification of sampling and assaying

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Geological logging is directly entered into an Acquire database. Assay files are received in csv format and loaded directly into the database by the project's responsible geologist with an Acquire importer object. Hardcopy and electronic copies of these are stored.

Verification of sampling and assaying

Discuss any adjustment to assay data.

No adjustments are made to this assay data.

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.

A planned hole is pegged using a Differential GPS by the field assistants

The final collar is picked up after hole completion by Differential GPS in the MGA 94_51 grid.

During drilling single-shot surveys are every 30m to ensure the hole remains close to design. This is performed using the Reflex Ez-Trac system which measures the gravitational dip and magnetic azimuth results are uploaded directly from the Reflex software export into the Acquire database.

Location of data points

Specification of the grid system used.

Collar coordinates are recorded in MGA94 Zone 51

Location of data points

Quality and adequacy of topographic control.

The Differential GPS returns reliable elevation data which has been confirmed against older (early 2000's)

topographic surveys.

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Drillhole spacing across the area varies.

Data spacing 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.

Exploration results only being reported

Data spacing and distribution

Whether sample compositing has been applied.

No compositing has been applied to these exploration results, although composite intersections are reported.

Criteria JORC Code explanation Commentary

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.

The orientation of the target is still to be determined. But knowledge of previous orebodies in the area suggests drilling direction is perpendicular to the orientation of mineralisation.

Orientation of data in relation to 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.

No sampling bias is considered to have been introduced by the drilling orientation.

Sample security

The measures taken to ensure sample security.

Prior to laboratory submission samples are stored by Northern Star Resources in a secure yard. Once submitted to the laboratories they are stored in a secure fenced compound, and tracked through their chain of custody and via audit trails

Audits or reviews

The results of any audits or reviews of sampling techniques and data.

No such exercise has been undertaken for the drillholes at this stage.

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.

All holes mentioned in this report are located within the M16/239 tenement, which is owned by KUNDANA GOLD PTY LTD a wholly owned subsidiary of Northern Star Resources. There are no private royalty agreements applicable to this tenement.

Mineral tenement and land tenure status

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.

No known impediments exist and the tenements are in good standing

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

The Carbine area has been explored since the late 1800s. Numerous companies, including BHP, Newcrest, Centaur Mining, Goldfields, Placer Dome and Barrick have been active in the area.

Drilling reported with this release is contiguous with the Paradigm underground and open cut mines. Drilling of these projects adds gold grade and geological context information to the interpretation of the area tested by PDRC14001 to PDRC14004.

Geology

Deposit type, geological setting and style of mineralisation.

The Carbine / Paradigm areas are considered to be northern extensions of the regionally significant Zuleika Shear Zone. The tenements are located in the Norseman-Wiluna Archaean greenstone belt in the Eastern Goldfields province of the Yilgarn Craton, Western Australia.

Gold mineralisation in the Zuleika Shear Zone and adjacent greenstone sequences occurs in all rock types, although historical and recent production is dominated by two predominant styles:

• Brittle D2 faults with laminated (multiple crack-seal) quartz veining containing gold and trace base metal sulphides (galena, sphalerite, chalcopyrite, scheelite),

• Brittle quartz vein stockworks developed within granophyric gabbro within the Powder Sill

Paradigm mineralisation is hosted in sub-vertical narrow laminated quartz veins.

At the Carbine main deposit, gold is hosted in veins and disseminated sulphides associated with structural disruption caused by a series of thrust faults, where the lower mafic/ultramafic sequence has been thrust over younger sediments.

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

See attached Appendix for a table of results.

Criteria JORC Code explanation Commentary

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.

Exclusion of the drill information will not detract from the understanding of the report.

Data aggregation methods

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

All reported assay results have been length weighted to provide an intersection width. Barren material between mineralised samples has been permitted in the calculation of these widths where the resultant average composite grade of samples beyond (and not including) the core mineralised zone exceeds the 1gpt cut-off grade used for intercept calculation.

Data aggregation methods

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.

No assay results have been top-cut for the purpose of this report. A lower cut-off of 1gpt has been used to identify significant results. Where the target zone does not exceed the 1gpt cut-off the intercept has been calculated across the target structure with no cut-off grade applied

Data aggregation methods

The assumptions used for any reporting of metal equivalent values should be clearly stated.

No metal equivalent values have been used for the reporting of these exploration results

Relationship between mineralisation widths and intercept lengths

These relationships are particularly important in the reporting of Exploration Results.

Relationship between mineralisation widths and intercept lengths

If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

The exact orientation of the Paradigm vein system and width has yet to be determined.

Relationship between mineralisation widths and intercept 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').

The downhole widths have been clearly specified when used.

Diagrams

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

Appropriate plans and section have been included in this release

Balanced reporting

Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

Both high and low grades have been reported accurately, clearly identified with the drillhole a ttributes and

'From' and 'To' depths.

All target zone intercepts for all eight holes have been reported for this drill program regardless of grade

Other substantive exploration data

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

No other material exploration data has been collected for this drill program.

Further work

The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

Paradigm North: Further work will continue in 2015 to determine the extents of the Paradigm North system.

Further work

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

Appropriate Diagrams accompany this release