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REG - East Star Resources - Two New Porphyry Licences Awarded

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RNS Number : 3187J  East Star Resources PLC  27 November 2025

27 November 2025

 

East Star Resources Plc

 

("East Star" or the "Company")

 

Two New Porphyry Licences Awarded

 

East Star Resources Plc (LSE:EST), the Kazakhstan-focused gold and base metals
explorer, is pleased to announce it has been awarded two new licences in the
Balkash-Ili Arc in Kazakhstan. The new licences comprise the Piket and Judzha
projects. The licences were acquired under the first-come-first-serve system
in Kazakhstan as a result of desktop and field studies targeting copper
porphyry deposits.

 

Highlights:

·    Two licences, prospective for Cu-Au porphyry and related systems have
been granted to East Star

·    Very large 8km x 3km alteration system in the Piket licence,
dominated by Advanced Argillic Alteration; similar age and setting to the
Macquarie Arc in Australia which is host to world class Cu-Au porphyry and
epithermal deposits

·    Anomalous gold up to 0.27g/t recorded in rock chips from Piket
Project

·    Anomalous silver up to 4.56g/t recorded in breccias from the Judzha
Project

 

Alex Walker, CEO of East Star Resources, commented:

 

"The East Star team has worked hard over the last two field seasons to
generate and assess more than 20 areas prospective for porphyry and epithermal
gold deposits. As a result, we are excited to announce the grant of the next
two licences in the portfolio prospective for copper porphyry deposits. Since
applying for the licences, the team has mapped the prospects, laying the
foundation for the next season's fieldwork. While the Licences are situated
within the joint venture area of interest with Endeavour Mining, the targeting
was focussed on copper porphyry deposits and so have been excluded from the
joint venture."

 

Next Steps

 

Data collection and compilation from the state archives is ongoing and will be
completed over the Kazakh winter season. The key focus of this work is to
understand what work was completed by the Soviets and to compile the
historical assay results from the multiple trenches, which have been
identified through mapping at the two projects. Additionally, rock chips from
recent mapping will be submitted for assay once the data compilation is
completed, in time to inform the work programme for the 2026 field season.

 

The Piket Project

 

The Piket Project ("Piket") is located approximately 80km south of the city of
Karaganada and approximately 20km west of the town of Shopa on the main
Astana-Almaty highway, with excellent access to the project area via a network
of farm tracks. The project appears as a large volcanic edifice composed of a
central core of variably altered andesitic volcanic rocks, which has been
intruded by a monzonite in the south. Figures 1 and 2 below illustrate the
results of the recently completed Piket mapping.

 

The project displays the following key attributes, which demonstrate its
potential fertility:

 

1.    Anomalous geochemistry: Initial rock chip samples returned up to
0.269 g/t gold in quartz veins along the eastern margin of the intrusive. This
highly anomalous gold is regarded as a strong indicator of system fertility.
Additionally, epithermal veins, which were trenched in Soviet times, have been
identified around 5km to the east of Piket. These veins demonstrate the
preservation of the epithermal environment.

 

2.    Extensive alteration: Piket displays extensive argillic alteration in
the north and the south and at least two areas of extensive alunite veining
have been observed through the mapping. Alteration is strongest in the
southern part of the license area with extensive quartz-pyrophyllite
alteration observed at surface. Pyrophyllite is diagnostic of the higher
temperature parts of the porphyry lithocap environment and is used a key
vector to the hottest and therefore most prospective parts of the system.

 

3.    Alkaline affinity: The monzonitic rocks in the project area display
alkalic alteration, which is a key feature of other prospective porphyry
belts, such as the Macquarie Arc in Australia. The arc has produced world
class Cu and Au bearing porphyry systems, such as Cadia-Ridgeway and North
Parkes. Recognition of this alkalic intrusive event supports the potential for
exploration for this style of mineralisation, which has been hitherto
unrecognised in Kazakhstan.

 

 Figure 1 - Piket Geological Map

 Figure 2 - Piket Alteration Map

 

The Judzha Project

 

The Judzha Project ("Judzha") is located approximately 100km northwest of the
city of Balkhash and approximately 40km west of the main Astana-Almaty
highway, with good access to the project area via a network of dirt roads.

Judzha hosts a large lithocap composed of a central core of hematitic breccias
surrounded by intermediate volcanic rocks that intrude the granitic basement.

Figures 3 and 4 below show the results of the recently completed Judzha
mapping.

 

The prospect displays the following attributes which demonstrate its potential
fertility:

 

1.    Multiple breccia events: Judzha was clearly a very active
hydrothermal system with multiple overprinting breccia events, including
intrusive breccias, hydrothermal breccias, and phreatomagmatic breccias.

2.    Extensive evidence of sulfides with pyrite preserved on the margins
of the system and relic sulfides now overprinted by hematite throughout the
core of the system.

3.    Epithermal textures observed in places with examples of vugs
containing comb quartz, characteristic of the epithermal environment.

4.    High-level geochemical anomalism including a peak result of up to
4.56g/t Ag in rock chips.

 

 

 Figure 3 - Judzha Geological Map

 Figure 4 - Judzha Alteration Map

Contacts:

 

East Star Resources Plc

Alex Walker, Chief Executive Officer

Tel: +44 (0)20 7390 0234 (via Vigo Consulting)

 

SI Capital (Corporate Broker)

Nick Emerson

Tel: +44 (0)1483 413 500

 

Vigo Consulting (Investor Relations)

Ben Simons / Peter Jacob

Tel: +44 (0)20 7390 0234

 

About East Star Resources Plc

 

East Star Resources is focused on the discovery and development of copper and
gold in Kazakhstan. The Company is pursuing multiple exploration strategies
including:

 

·    Volcanogenic massive sulphide (VMS) exploration, which to date
includes a deposit with a maiden JORC MRE of 20.3Mt @ 1.16% copper, 1.54% zinc
and 0.27% lead, in an infrastructure-rich region, amenable to a low capex
development

·    Copper porphyry and epithermal gold exploration, with multiple
opportunities for Tier 1 deposits and a $25 million+ strategic JV agreement
with Endeavour Mining for gold exploration

 

Visit our website:

 

www.eaststarplc.com (http://www.eaststarplc.com)

 

Follow us on social media:

LinkedIn: https://www.linkedin.com/company/east-star-resources/
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Subscribe to our email alert service to be notified whenever East Star
releases news:

 

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The person who arranged for the release of this announcement was Alex Walker,
CEO of the Company.

 

Competent Person Statement

 

Scientific or technical information in this disclosure related to exploration
was reviewed by Dr Tremain Woods, a full-time employee of Discovery Ventures
Kazakhstan Ltd, a 100% owned subsidiary of East Star Resources PLC. Dr Woods
is a member in good standing with the Geological Society of South Africa. He
has sufficient experience that is relevant to the commodity, style of
mineralisation or type of deposit under consideration and activity which he is
undertaking to qualify as a Competent Person under the JORC code (2012
Edition).

 

 

The person who arranged for the release of this announcement was Alex Walker,
CEO of the Company.

 

This announcement contains inside information for the purposes of Article 7 of
Regulation 2014/596/EU which is part of domestic UK law pursuant to the
Market Abuse (Amendment) (EU Exit) Regulations (SI 2019/310) ("UK MAR"). Upon
the publication of this announcement, this inside information (as defined
in UK MAR) is now considered to be in the public domain.

 

Table 1 Rock Chip results by Project
 SampleID  NAT_North  NAT_East  Project  Cu_ppm  Au_ppm  Ag_ppm
 R10912    5257655    425142    Judzha   3.54    0.0011  0.512
 R10913    5257542    424991    Judzha   5.17    0.0042  4.56
 R10914    5257533    424996    Judzha   20.4    0.0028  0.58
 R10915    5257426    424968    Judzha   2.49    0.022   0.346
 R10916    5257410    424938    Judzha   9.02    0.0127  0.909
 R10917    5257368    424923    Judzha   4.85    0.0062  0.317
 R10918    5257282    424853    Judzha   14.6    0.0062  1.38
 R10919    5257178    424627    Judzha   18.1    0.0035  0.163
 R10920    5257109    424624    Judzha   6.82    0.0039  0.255
 R10921    5257015    424599    Judzha   14.05   0.0079  0.518
 R12740    5440784    370317    Piket    5.96    0.001   0.068
 R12741    5440572    370330    Piket    6.98    0.001   0.101
 R12742    5440568    370350    Piket    6.01    -0.001  0.074
 R12743    5440430    370474    Piket    6.46    -0.001  0.095
 R12744    5440562    370589    Piket    10.1    -0.001  0.183
 R12745    5440511    370454    Piket    14.65   -0.001  0.214
 R12746    5443817    374030    Piket    2.65    0.005   0.043
 R12747    5442059    373060    Piket    3.12    0.003   0.029
 R12748    5437583    371165    Piket    9.17    0.02    0.154
 R12749    5437712    371109    Piket    32.1    0.113   0.101
 R12750    5437686    371005    Piket    9.02    0.269   0.183
 R12751    5438433    370159    Piket    46.4    0.018   0.394

 

 

Table 2 - JORC Code, 2012 Edition
Section 1 Sampling Techniques and Data
 Criteria                                                 JORC Code explanation                                                            Commentary
 Sampling techniques                                      ·    Nature and quality of sampling (e.g. cut channels, random chips, or         ·      Samples were taken from fresh in situ outcrops at surface, where
                                                          specific specialised industry standard measurement tools appropriate to the      ever fresh outcrop showed features of interest such as veining, sulphides,
                                                          minerals under investigation, such as down hole gamma sondes, or handheld XRF    oxide material and strong alteration
                                                          instruments, etc). These examples should not be taken as limiting the broad

                                                          meaning of sampling.                                                             ·      Samples were taken until a standard sample bag was half filled -

                                                                                approximately 1 - 5 kg of material
                                                          ·    Include reference to measures taken to ensure sample representivity

                                                          and the appropriate calibration of any measurement tools or systems used.        ·      Mineralisation was identified by inspection of fresh surfaces of

                                                                                the samples, mineralisation included both sulphide and oxides
                                                          ·    Aspects of the determination of mineralisation that are Material to

                                                          the Public Report.                                                               ·      Historical samples are not available at the time of this press

                                                                                release
                                                          ·    In cases where 'industry standard' work has been done this would be

                                                          relatively simple (e.g. 'reverse circulation drilling was used to obtain 1 m
                                                          samples from which 3 kg was pulverised to produce a 30 g charge for fire
                                                          assay'). In other cases, more explanation may be required, such as where there
                                                          is coarse gold that has inherent sampling problems. Unusual commodities or
                                                          mineralisation types (e.g. submarine nodules) may warrant disclosure of
                                                          detailed information.
 Drilling techniques                                      ·    Drill type (e.g. core, reverse circulation, open-hole hammer, rotary        ·    N/A
                                                          air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple
                                                          or standard tube, depth of diamond tails, face-sampling bit or other type,
                                                          whether core is oriented and if so, by what method, etc).
 Drill sample recovery                                    ·    Method of recording and assessing core and chip sample recoveries and       ·    N/A
                                                          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                    ·    N/A
                                                          geotechnically logged to a level of detail to support appropriate Mineral
                                                          Resource estimation, mining studies and metallurgical studies.

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

                                                          ·    The total length and percentage of the relevant intersections logged.
 Sub-sampling techniques and sample preparation           ·    If core, whether cut or sawn and whether quarter, half or all core          ·    N/A
                                                          taken.

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

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

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

                                                          ·    Measures taken to ensure that the sampling is representative of the
                                                          in-situ material collected, including 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 assay data and laboratory tests               ·    The nature, quality and appropriateness of the assaying and                 ·    Nature, quality and appropriateness of assaying and laboratory
                                                          laboratory procedures used and whether the technique is considered partial or    procedures:
                                                          total.

                                                                                o  Samples analysed at ALS Karaganda (Kazakhstan), an ISO-compliant facility.
                                                          ·    For geophysical tools, spectrometers, handheld XRF instruments, etc,

                                                          the parameters used in determining the analysis including instrument make and    o  Multi-element suite by ME-MS41L (aqua-regia digestion, ICP-MS) -
                                                          model, reading times, calibrations factors applied and their derivation, etc.    near-total for most elements, partial for refractory minerals; appropriate for

                                                                                early-stage exploration.
                                                          ·    Nature of quality control procedures adopted (e.g. standards, blanks,

                                                          duplicates, external laboratory checks) and whether acceptable levels of         o  Gold by AU-ICP21 (30 g fire assay, ICP-AES finish) - total technique,
                                                          accuracy (i.e. lack of bias) and precision have been established.                industry standard.

                                                                                                                                           o  HYP-PKG hyperspectral logging (HyLogger-3™) for alteration/lithology
                                                                                                                                           mapping - non-destructive and suitable for early exploration.

                                                                                                                                           o  Techniques are considered fit-for-purpose for the exploration stage

                                                                                                                                           ·    Geophysical tools, spectrometers, handheld XRF instruments

                                                                                                                                           o  No geophysical tools or handheld XRF used for reported results.

                                                                                                                                           o  Hyperspectral data acquired with HyLogger-3™ (380-14,500 nm); daily
                                                                                                                                           calibration with certified standards.

                                                                                                                                           ·    Nature of quality control procedures adopted

                                                                                                                                           o  At this early stage, no field duplicates, blanks or CRMs were inserted by
                                                                                                                                           the company.

                                                                                                                                           o  Full reliance placed on ALS Karaganda internal laboratory QA/QC (reagent
                                                                                                                                           blanks, certified standards, duplicates and repeats inserted by the laboratory
                                                                                                                                           at regular intervals).

                                                                                                                                           ·    Acceptable levels of accuracy and precision:

                                                                                                                                           o  Laboratory internal QC results supplied with every batch showed all
                                                                                                                                           standards within acceptable limits, no significant bias, and duplicate
                                                                                                                                           precision typically <10 % RSD.

                                                                                                                                           o  Accuracy and precision are considered acceptable for early-stage
                                                                                                                                           exploration reporting.

 Verification of sampling and assaying                    ·    The verification of significant intersections by either independent         ·    N/A
                                                          or alternative company personnel.

                                                          ·    The use of twinned holes.

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

                                                          ·    Discuss any adjustment to assay data.
 Location of data points                                  ·    Accuracy and quality of surveys used to locate drill holes (collar          ·    Locations were surveyed using Garmin GPSMAP 62S handheld GPS device
                                                          and down-hole surveys), trenches, mine workings and other locations used in      or mobile phone GPS device.
                                                          Mineral Resource estimation.

                                                                                ·    Grid system WGS84, UTM43N.
                                                          ·    Specification of the grid system used.

                                                                                ·    The quality and accuracy of handheld/mobile GPS devices is
                                                          ·    Quality and adequacy of topographic control.                                approximately 3 m in the X and Y directions and 12 m in the Z direction. The
                                                                                                                                           accuracy is considered acceptable for early-stage exploration
 Data spacing and distribution                            ·    Data spacing for reporting of Exploration Results.                          ·    N/A

                                                          ·    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 of data in relation to geological structure  ·    Whether the orientation of sampling achieves unbiased sampling of           ·    N/A
                                                          possible structures and the extent to which this is known, considering the
                                                          deposit type.

                                                          ·    If the relationship between the drilling orientation and the
                                                          orientation of key mineralized structures is considered to have introduced a
                                                          sampling bias, this should be assessed and reported if material.

 Sample security    ·    The measures taken to ensure sample security.                              ·    Sample security is unclear and cannot be verified by East Star.
 Audits or reviews  ·    The results of any audits or reviews of sampling techniques and data.      ·    No audits were undertaken for this work.

 
Section 2 Reporting of Exploration Results
 Criteria                                                          JORC Code explanation                                                            Commentary
 Mineral tenement and land tenure status                           ·    Type, reference name/number, location and ownership including               ·    The Judzha Exploration license (3724-EL) is registered to Discovery
                                                                   agreements or material issues with third parties such as joint ventures,         Ventures Kazakhstan Limited, an AIFC registered entity 100% owned by East Star
                                                                   partnerships, overriding royalties, native title interests, historical sites,    Resources PLC. The license was awarded on 14 November 2025 and is valid for 6
                                                                   wilderness or national park and environmental settings.                          years.

                                                                   ·    The security of the tenure held at the time of reporting along with         ·    The Piket Exploration license (3720-EL) is registered to Discovery
                                                                   any known impediments to obtaining a licence to operate in the area.             Ventures Kazakhstan Limited, an AIFC registered entity 100% owned by East Star
                                                                                                                                                    Resources PLC. The license was awarded on 10 November 2025 and is valid for 6
                                                                                                                                                    years.

                                                                                                                                                    ·    All requirements for owning the licenses, including insurances, have
                                                                                                                                                    been fulfilled

                                                                                                                                                    ·    There are no known legal or security impediments to holding the
                                                                                                                                                    exploration licenses and obtaining mining licenses.
 Exploration done by other parties                                 ·    Acknowledgment and appraisal of exploration by other parties.               ·    Table of previously completed exploration at Piket

Principal author, year      Period     Exploration                                                              Results
                                                                                                                                                    M. Reshko and et al., 1966  1964-1966  Сomprehensive geological survey at 1:50,000 scale. Completed: mapping,   Within the license boundary identified alunite and diaspore mineral
                                                                                                                                                                        drilling, trenching, test pitting, and sampling                          occurrences - Symbyl-1, Symbyl-2 and Kosmurun

 

                                                                                                                                                    ·    Table of previously completed exploration at Judzha

Principal author, year       Period     Exploration                                                                     Results
                                                                                                                                                    G. Zhakupov et al., 1965     1962-1964  1:50 000-scale geological survey and exploration for regional prospectivity     The report presents the results of stream sediment and hydrochemical surveys,
                                                                                                                                                                        assessment and preparation of geological, metallogenic, and forecast maps.      trench and metalometric sampling, geophysical studies (magnetic, SP, IP),
                                                                                                                                                                                                                drilling and mining works, and gamma surveys.
                                                                                                                                                    N. Kochkin et al., 1965      1962-1964  1:50 000-scale geological survey for mineral deposit exploration                Within the license area delineated Judzha ore occurrence. Agadyr GEP conducted
                                                                                                                                                                                                                ametallometric survey, magnetic and electrical works (SP and IP), and
                                                                                                                                                                                                                exploratory drilling.
                                                                                                                                                    S. Starodubcev et al., 1980  1976-1980  1:50 000-scale geological follow-up studies and prospecting aimed at            Updated information on stratigraphy, tectonics, magmatic activity, and mineral
                                                                                                                                                                        discovering copper, polymetallic, and rare-metal deposits                       resources has been obtained. Several new ore occurrences and mineralization
                                                                                                                                                                                                                points were discovered, while geochemical analyses highlighted numerous
                                                                                                                                                                                                                copper, molybdenum, lead, and zinc anomalies.
                                                                                                                                                    I. Kolesnikov et al., 1990   1986-1990  1:50 000-scale deep exploration for copper, rare, radioactive metals, gold in   Drilling, sampling, electrical surveys, and geochemical studies were carried
                                                                                                                                                                        areas covered by unconsolidated sedimentary overburden                          out. Identified prospective mineralization areas, and given recommendations
                                                                                                                                                                                                                for detailed geological and geophysical works.
                                                                                                                                                    I. Shuvalov et al., 1992     1978-1990  1:50 000-scale geological follow-up studies and prospecting carried out by the  The report outlines the results of 1:50 000-scale geological follow-up studies
                                                                                                                                                                        Uzunzhalskaya party, and regional geophysical surveys completed by the Airtau   and the accompanying geophysical, geochemical, drilling, and other works that
                                                                                                                                                                        geophysical team.                                                               support the overall evaluation of forecast mineral resources. It also
                                                                                                                                                                                                                summarizes the results of detailed integrated prospecting conducted across
                                                                                                                                                                                                                several polymetallic occurrences.
 Geology                                                           ·    Deposit type, geological setting, and style of mineralisation.              ·    Judzha

                                                                                                                                                    o  The license area is hosted in volcanic-sedimentary sequences, with an
                                                                                                                                                    intrusive breccia complex in the centre. The geology and alteration indicates
                                                                                                                                                    an alkaline porphyry intrusion

                                                                                                                                                    o  While unknown at this stage, ESR is exploring for porphyry style
                                                                                                                                                    mineralisation and associated deposits

                                                                                                                                                    ·    Piket

                                                                                                                                                    o  The license area is hosted in volcanic-sedimentary sequences intruded by
                                                                                                                                                    monzonites, with an intrusive breccia complex in the centre. The geology and
                                                                                                                                                    alteration indicates an alkaline porphyry intrusion

                                                                                                                                                    o  While unknown at this stage, ESR is exploring for porphyry style
                                                                                                                                                    mineralisation and associated deposits

 Drill hole Information                                            ·    A summary of all information material to the understanding of the           ·    N/A
                                                                   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 aggregation methods                                          ·    In reporting Exploration Results, weighting averaging techniques,           ·    N/A
                                                                   maximum and/or minimum grade truncations (e.g. cutting of high grades) and
                                                                   cut-off grades are usually Material and should be stated.

                                                                   ·    Where aggregate intercepts incorporate short lengths of high-grade
                                                                   results and longer lengths of low-grade results, the procedure used for such
                                                                   aggregation should be stated and some typical examples of such aggregations
                                                                   should be shown in detail.

                                                                   ·    The assumptions used for any reporting of metal equivalent values
                                                                   should be clearly stated.
 Relationship between mineralisation widths and intercept lengths  ·    These relationships are particularly important in the reporting of          ·    The nature of any potential ore bodies is not known at this stage of
                                                                   Exploration Results.                                                             exploration.

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

                                                                   ·    If it is not known and only the down hole lengths are reported, there
                                                                   should be a clear statement to this effect (e.g. 'down hole length, true width
                                                                   not known').
 Diagrams                                                          ·    Appropriate maps and sections (with scales) and tabulations of              ·    Relevant diagrams have been included in the body text.
                                                                   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 reporting                                                ·    Where comprehensive reporting of all Exploration Results is not             ·    N/A
                                                                   practical, representative reporting of both low and high grades and/or widths
                                                                   should be practiced to avoid misleading reporting of Exploration Results.
 Other substantive exploration data                                ·    Other exploration data, if meaningful and material, should be               ·    N/A
                                                                   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.
 Further work                                                      ·    The nature and scale of planned further work (e.g. tests for lateral        ·    East star is planning to soil sample and analyse samples taken over
                                                                   extensions or depth extensions or large-scale step-out drilling).                the winter months in Kazakhstan

                                                                   ·    Diagrams clearly highlighting the areas of possible extensions,             ·    Additional work programmes will be designed based on the outcomes of
                                                                   including the main geological interpretations and future drilling areas,         the soils
                                                                   provided this information is not commercially sensitive.

 

 

·    Table of previously completed exploration at Judzha

 Principal author, year       Period     Exploration                                                                     Results
 G. Zhakupov et al., 1965     1962-1964  1:50 000-scale geological survey and exploration for regional prospectivity     The report presents the results of stream sediment and hydrochemical surveys,
                                         assessment and preparation of geological, metallogenic, and forecast maps.      trench and metalometric sampling, geophysical studies (magnetic, SP, IP),
                                                                                                                         drilling and mining works, and gamma surveys.
 N. Kochkin et al., 1965      1962-1964  1:50 000-scale geological survey for mineral deposit exploration                Within the license area delineated Judzha ore occurrence. Agadyr GEP conducted
                                                                                                                         a metallometric survey, magnetic and electrical works (SP and IP), and
                                                                                                                         exploratory drilling.
 S. Starodubcev et al., 1980  1976-1980  1:50 000-scale geological follow-up studies and prospecting aimed at            Updated information on stratigraphy, tectonics, magmatic activity, and mineral
                                         discovering copper, polymetallic, and rare-metal deposits                       resources has been obtained. Several new ore occurrences and mineralization
                                                                                                                         points were discovered, while geochemical analyses highlighted numerous
                                                                                                                         copper, molybdenum, lead, and zinc anomalies.
 I. Kolesnikov et al., 1990   1986-1990  1:50 000-scale deep exploration for copper, rare, radioactive metals, gold in   Drilling, sampling, electrical surveys, and geochemical studies were carried
                                         areas covered by unconsolidated sedimentary overburden                          out. Identified prospective mineralization areas, and given recommendations
                                                                                                                         for detailed geological and geophysical works.
 I. Shuvalov et al., 1992     1978-1990  1:50 000-scale geological follow-up studies and prospecting carried out by the  The report outlines the results of 1:50 000-scale geological follow-up studies
                                         Uzunzhalskaya party, and regional geophysical surveys completed by the Airtau   and the accompanying geophysical, geochemical, drilling, and other works that
                                         geophysical team.                                                               support the overall evaluation of forecast mineral resources. It also
                                                                                                                         summarizes the results of detailed integrated prospecting conducted across
                                                                                                                         several polymetallic occurrences.

Geology

·    Deposit type, geological setting, and style of mineralisation.

·    Judzha

o  The license area is hosted in volcanic-sedimentary sequences, with an
intrusive breccia complex in the centre. The geology and alteration indicates
an alkaline porphyry intrusion

o  While unknown at this stage, ESR is exploring for porphyry style
mineralisation and associated deposits

·    Piket

o  The license area is hosted in volcanic-sedimentary sequences intruded by
monzonites, with an intrusive breccia complex in the centre. The geology and
alteration indicates an alkaline porphyry intrusion

o  While unknown at this stage, ESR is exploring for porphyry style
mineralisation and associated deposits

 

Drill hole Information

·    A summary of all information material to the understanding of the
exploration results including a tabulation of the following information for
all Material drill holes:

o  easting and northing of the drill hole collar

o  elevation or RL (Reduced Level - elevation above sea level in metres) of
the drill hole collar

o  dip and azimuth of the hole

o  down hole length and interception depth

o  hole length.

·    If the exclusion of this information is justified on the basis that
the information is not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly explain why
this is the case.

·    N/A

 

Data aggregation methods

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

·    Where aggregate intercepts incorporate short lengths of high-grade
results and longer lengths of low-grade results, the procedure used for such
aggregation should be stated and some typical examples of such aggregations
should be shown in detail.

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

·    N/A

Relationship between mineralisation widths and intercept lengths

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

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

·    If it is not known and only the down hole lengths are reported, there
should be a clear statement to this effect (e.g. 'down hole length, true width
not known').

·    The nature of any potential ore bodies is not known at this stage of
exploration.

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.

·    Relevant diagrams have been included in the body text.

Balanced reporting

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

·    N/A

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.

·    N/A

Further work

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

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

·    East star is planning to soil sample and analyse samples taken over
the winter months in Kazakhstan

·    Additional work programmes will be designed based on the outcomes of
the soils

 

 

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