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FREEHILL MINING LIMITED. — Capital/Financing Update 2026
Feb 26, 2026
64918_rns_2026-02-26_8e946fe1-98ad-4f66-8c90-d60202de4382.pdf
Capital/Financing Update
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ASX Release
27 February 2026
Option to Acquire Highly Prospective Copper-Gold Projects in Chile
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Option to acquire 100% of the Blanco y Negro Copper Gold Deposit sits on 128 hectares of exploitation leases:
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Historical mine within trucking distance of several nearby copper processing plants with capacity
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Hosts a defined a JORC-2012 Indicated and Inferred Mineral Resource Estimate of 1.5Mt at 1.4% Cu, 0.5g/t Au for 20,000t Cu and 24,000oz Au (see table 1) - Mineralisation open to NW, down-dip and down-plunge
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oMultiple high grade intercepts[1] including :-
[email protected]%Cu + 1g/t Au including [email protected]% Cu and 1.6 g/t Au
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[email protected]%Cu including [email protected]% Cu and 0.9% g/t Au
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38m@1% Cu and 0.3% g/t Au including [email protected]% Cu and 7m @ 2.1% Cu
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Option to acquire 75% of the Joshua Copper-Gold Multi-Phase Porphyry Project:
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Discovered by Helix Resources in 2011: Multiple porphyry phases over a 6km x 3km; open in all directions
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Compelling historical diamond drilling results include:
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400m @ .33% Cu[Eq] (0.25% Cu, 0.1g/t Au) from surface[2]
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Includes 70m @ 0.41% Cu[Eq] , 20m @ 0.52% Cu[Eq] and 38m @ 0.44% Cu[Eq] )
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Extensive unexplored targets over ~5,100 HA held under 18 concessions
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Situated 45km south of Adacollo 250Mt @ 0.62% Cu, 0.25g/t Au (Teck)
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Options secured on favourable terms and capital light upfront:
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Low upfront costs: US$155,000 option fee payable on signing; a further US$150,000 due 6 months after
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Future payments, including the project purchase, are based on key milestones such as permits being granted and production commencement (see transaction terms below)
• Planned near-term works program:
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Blanco y Negro exploration, mine survey and planning and approvals for an initial 5,000 tpm operation
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Assess further copper and gold targets at Blanco y Negro for drilling and resource expansion
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Compilation and re-release of all historical data on the Joshua project based on current metal prices
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Freehill’s revenue-generating aggregates business supplying blue chip customers is positioned for major scale up
Freehill Mining Limited (ASX: FHS ‘Freehill’ or ‘the Company’) is pleased to confirm that it has signed an option agreement with private Chilean company Companario Minerals Limitada (‘CML’) to acquire up to 100% three highly prospective projects in Region IV in Chile, including a JORC 2012 compliant copper and gold resource on a granted mining lease and a large-scale multi-phase porphyry system with compelling historical exploration results.
Today’s announcement aligns with Freehill’s stated goal of gaining exposure to gold and copper projects which have defined resources, near-term production potential with low upfront capex and significant exploration upside. Under the terms of the option agreement Freehill’s financial exposure is limited to option payments capped at US$305,000 in the next six months with future payments tied to permitting, production and/or on-sale of the projects.
Alongside these opportunities, Freehill has the added advantage of a growing its cash-generating aggregates business which is supplying material to some of Chile’s largest cement and infrastructure companies from two projects, Islon and Yerbas Buenas, both located in region IV. Gross sales have increased month-on-month since October 2025 and this business is expected to be cash-flow positive in the current quarter with some limited capital expenditure to enhance monthly sales and improve margins. Gross sales exceeded A$300,000 in January alone and this is expected to keep tracking up. The potential scale of this business is considerable.
Non-Executive Chairman Ben Jarvis commented: “We are delighted to have secured the rights to acquire a portfolio of highly prospective copper-gold projects. Blanco y Negro hosts a valuable resource with excellent grade and considerable exploration upside. Limited low-cost exploration, mine planning and permitting for an initial 5,000 tonne a month operation are our immediate priorities. The project is located near to a government run copper processing plant which Freehill intends to utilise. Joshua is a multi-phase porphyry system with some compelling historical exploration results and further upside given only a small percentage of the project has been explored. We will work with our technical team to assess the historical data and define the next phase of exploration. Give the project’s scale, we will seek to bring in partners best suited to assets of this size. We are also pleased to confirm that our aggregates business has now stabilised and limited capex is required for this business to becoming cash-flow positive this quarter. Cash-flow from this operation supports future growth initiatives.”
Managing Director Paul Davies added: “Freehill is exceptionally well positioned in the near-term with a growing aggregates business that is delivering improved sales and better margins. Demand for our material currently exceeds supply and we see tremendous upside in this region of Chile to grow what is a solid cash generating operation underpinned by a stable, quality blue chip customer base. This provides the foundation on which we can now build a quality portfolio of copper-gold projects with near-term production potential and exploration upside.”
Immediate work programs
Freehill has engaged technical consultants to collate of the all historical data and reports on the Joshua porphyry project available from Codelco, Helix Resources Limited and Manhattan Corporation Limited with the view to developing a comprehensive geological data set for shareholders and interested third parties.
Exploration at Blanco y Negro is planned next month which will involve assessing mineralisation in the historical mine, trenching and drilling potential extensions where the mineralisation is open to the NW.
Freehill is in advanced discussions to engage a third party with extensive exploration and mining capability that can potentially assist with the exploration and development of these projects. Negotiations are ongoing and as yet, are incomplete.
Background Information on Projects
The Blanco y Negro project, also drilled by drilled by Helix Resources is a vein/shear-hosted copper–gold system in Region IV, Chile, situated ~10 km SW of Ovalle and ~21 km NE of Punitaqui. The project comprises ~128 ha of exploitation concessions and is hosted within the Los Mantos Fault system. Mineralisation occurs as oxide copper (dominantly malachite and azurite) with transition zone chalcocite and chalcopyrite, and a single main central mineralised zone with weaker hanging-wall and footwall zones; the system remains open to the northwest, down-dip and down-plunge.
The stated JORC-2012 Mineral Resource (0.5% Cu cut-off) is 1.5 Mt at 1.4% Cu and 0.5 g/t Au (total ~20,000 t Cu and ~24,000 oz Au). The resource is reported across oxide, transition and fresh domains (see Table 1, p.2) and sits on granted mining concessions, providing immediate tenure and local trucking/capacity advantages. Drilling and mapping have returned multiple porphyry-style and shear-hosted high-grade intercepts as referenced in the highlights above. These results, combined with the oxide-dominated resource and open continuity, support potential for further resource growth with targeted infill and down-plunge drilling.
The Joshua copper–gold porphyry project (discovered by Helix Resources in 2011) is a large, multi-phase porphyry system located in Region IV of Chile, ~350 km north of Santiago and about 40 km east of Ovalle, hosted within a lowaltitude, well-connected coastal porphyry belt. Helix and successive partners have mapped a broad coincident copper-in-soil and IP anomaly across a broad strike length and extending to depths in excess of 500 m; the broader project footprint covers many square kilometres with multiple identified porphyry targets and good year-round access to regional infrastructure.
Exploration to date has returned wide, continuous porphyry-style mineralisation and some locally higher grades. Notable reported intersections include long, coherent zones such as 400 m at ~0.33% Cu-equivalent and 256 m at ~0.32% Cu-equivalent from Helix drilling. Drilling and core logging have confirmed multiple intrusive/porphyry events (andesitic, dacitic and dioritic phases), widespread sulphide mineralisation including chalcocite and chalcopyrite, and locally significant molybdenite, all of which point to a large, zoned porphyry system that remains open and only partially tested.
The Samuel copper/gold porphyry project is located 17km south-east of the city of Ovalle and 17km north-east of the Punitaqui mine, is prospective for copper-gold porphyry, manto and breccia style mineralisation. The Project consists of 3,972Ha of exploration concessions. Exploration by Helix Resources and funding partners focussed on an area of 4.0km x 2.7km, being a metallogenic strip of upper to mid Cretaceous rocks that are bounded by large NW and NE regional controlling structures. The dominant geology of the Project area consists of intrusive rocks. A dacitic porphyry intrudes the intrusive rocks and volcanics, generating hydrothermal alteration and stockwork of Cu-quartz veins.
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Figure 1: Location Map of Projects (HLX announcement, 20 December, 2020)[3]
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Figure 2: Blanco Negro drilling, 2012 (Source: HLX ASX release, 20 December, 2020)[4]
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Figure 3: Historical Open-cut at Blanco Negro Cu-Au Mine (Source: Hermes Exploration, Sep’2024)
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Table 1: JORC (2012) Resource at Blanco Negro (Refer to HLX ASX release dated 13 August, 2015)[5]
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Figure 4: Location of three interpreted porphyry centres and location of historical drill holes (source: Manhattan Corporation Limited 2019 annual report)[6]
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Figure 5: The Joshua porphyry system – interpreted schematic geological model in NE-SW section (source: Manhattan Corporation Limited 2019 annual report)[7]
Transaction terms
El Dorado Hold Co Pty Ltd, a wholly owned subsidiary of FHS, has entered into an option agreement with Companario Minerals Limitada (a Chilean company) ( CML ) to purchase 100% interest in the “Blanco y Negro”, and 75% of the “Joshua” and “Samuel”, mining concessions, claims and rights in Chile ( Projects ) for a total purchase price of US$4 million ( Option Agreement* ). The Projects are set out at Schedule 1.
The key commercial terms of the Option Agreement are as follows:
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a) Purchase price - US$4 million.
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b) Asset to be acquired - a 100% interest in the Blanco y Negro Project, a 75% interest in the Joshua Project and a 75% interest in the Samuel Project. CML will retain a 25% interest in each of the Joshua Project and the Samuel Project, with FHS having the right to acquire those interests as described in (d) below.
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c) Payment terms :
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i. US$155,000 on signing the Option Agreement (which has been paid by FHS);
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ii. US$150,000 within 6 months of signing the Option Agreement;
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iii. US$250,000 within 30 business days of Sernageomin's (the Chilean National Geology and Mining Service) approval to extract up to 5,000 tons of material per month;
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iv. US$500,000 within 30 days of commencing economic production; and
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v. US$2,950,000 balance within 12 months of commencing economic production. If the US$2,950,000 balance is not paid within 6 months of commencing production CML will receive 10% of the net monthly income for the next 6 months (where such payments are not included in the purchase price).
At any time, FHS may formalise the full purchase with payment of the balance of the US$4 million outstanding.
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d) Further option : FHS has an option to acquire the remaining 25% interest held by CML at an agreed value at that time of acquisition.
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e) Other terms :
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i. From signing the Option Agreement, FHS will pay the mining patents associated with the Projects.
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ii. FHS will have the right to commence work on the Joshua Project and the Samuel Project upon signing the Option Agreement.
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iii. FHS will pay the patents (taxes) for the annual mining concessions upon signing the Option Agreement which involves an initial payment of US$5,000 plus US$500 per month and annual licence fees when due.
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iv. Helix Resources Limited holds a 1.0% net smelter return payable in relation to the Projects.
FHS notified ASX of the transaction and ASX has confirmed that FHS is not required to seek shareholder approval under Listing Rule 11.1.2 nor comply with Listing Rule 11.1.3.
Approved for release by the Board of the Company.
For further information, please contact:
Paul Davies Ben Jarvis Chief Executive Officer Non-Executive Chairman Freehill Mining Limited 0413 150 448 +61 419 363 630 [email protected]
FOOTNOTES
1 Helix Resources Limited (ASX:HLX) announcement dated 22 December 2020 - Status Update of Helix’s Chilean Copper Assets - https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=02325266
2 See note 1.
3 See note 1.
4 See note 1.
5 See note 1.
6 See note 1.
7 Manhattan Corporation Limited (ASX:MHC) annual report dated 17 September 2019 - https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=02147955
MINERAL RESOURCE ESTIMATES
The information in this announcement relating to the Mineral Resource Estimates and Exploration Results for the Project is extracted from the following HLX announcements:
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Maiden Inferred Resource - Blanco Y Negro Project - Chile dated 20 November 2013 as set out at Annexure A;
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Addendum to Maiden Inferred Resource Chile Announcement dated 28 November 2013 as set out at Annexure B; 3. High Grade Copper Gold at Blanco Y Negro Chile dated 10 September 2014 as set out at Annexure C;
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Resource Upgrade at Blanco Y Negro Deposit - Chile dated 13 August 2015 as set out at Annexure D; and
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Status update on Chilean copper assets dated 22 December 2020 as set out at Annexure E.
The above being the Helix Announcements .
NO NEW INFORMATION
Full details of the Indicated and Inferred Mineral Resource Estimate contained in this announcement are provided in the Helix Announcements. Freehill confirms that it is not aware of any new information or data that materially affects the information included in the original announcement and that all material assumptions and technical parameters underpinning the Mineral Resource Mineral Resource Estimate in the relevant market announcement continue to apply and have not materially changed.
Freehill has not independently verified the information relating to the Mineral Resource Estimate contained in this announcement and the Helix Announcements. Please refer to the Helix Announcements for further details and for the Competent Person’s Statement relating to the Mineral Resource Estimate set out in the Helix Announcements.
Freehill has not independently verified the information relating to the Mineral Resource Estimate contained in this announcement. Please refer to the Helix Announcements for further details and for the Competent Person’s Statement relating to the Mineral Resources set out in the Helix Announcements.
COMPETENT PERSON STATEMENT
The information in this report that relates to Mineral Resource Estimate and exploration results is based on information compiled by Mr Geoffrey Muers, a Competent Person who is a Fellow of the Geological Society of Australia. Mr Muers is a consultant to Freehill Mining Limited and has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ (the JORC Code 2012). Mr Muers consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
FORWARD-LOOKING STATEMENTS
This report may contain “forward-looking statements” within the meaning of securities laws of applicable jurisdictions. Forward-looking statements can generally be identified by the use of forward-looking words such as “may”, “will”, “expect”, “target”, “intend”, “plan”, “estimate”, “anticipate”, “believe”, “continue”, “objectives”, “outlook”, “guidance” or other similar words, and include statements regarding certain plans, strategies and objectives of management and expected financial performance. These forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside the control of Freehill and any of its officers, employees, agents or associates. Actual results, performance or achievements may vary materially from any projections and forward-looking statements and the assumptions on which those statements are based. Exploration potential 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. Readers are cautioned not to place undue reliance on forward-looking statements and Freehill assumes no obligation to update such information.
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JORC Code, 2012 Edition – Table 1 From Helix Resources Limited announcement on 13 August 2015
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Sampling | •Nature and quality of sampling (eg cut channels, random chips, or | • | The B y N deposit was delineated using Reverse Circulation (RC) |
| **techniques ** | specific specialised industry standard measurement tools appropriate | and Diamond Core (DC) drilling. A total of 21 holes were used to | |
| to the minerals under investigation, such as down hole gamma | delineate and bound the resource estimate. Holes were sited on an | ||
| sondes, or handheld XRF instruments, etc). These examples should | approximate 50m X 50m and 100 x 50m grid and were generally | ||
| not be taken as limiting the broad meaning of sampling. | orientated to the Grid East (060o) at dips between -50 & 80o. | ||
| •Include reference to measures taken to ensure sample representivity | • | The drill hole locations were located by handheld GPS. Down hole | |
| and the appropriate calibration of any measurement tools or systems | surveys were conducted post drilling using a down-hole gyro | ||
| used. | system in five of the drill holes completed. No down-hole surveys | ||
| •Aspects of the determination of mineralisation that are Material to the | were conducted in the remaining holes. | ||
| Public Report. | • | RC drilling was used to obtain generally 1m and 2m samples from | |
| •In cases where ‘industry standard’ work has been done this would be | which 3kg was pulverized to produce a charge for geochemical | ||
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m | analysis. Diamond core was NQ2size for diamond coring and tails | ||
| samples from which 3 kg was pulverised to produce a 30 g charge for | off RC pre-collars. Core was split and half-core was collected over | ||
| fire assay’). In other cases more explanation may be required, such as | 1m intervals within mineralised zones and prepared and assayed | ||
| where there is coarse gold that has inherent sampling problems. | using the same methods for RC . | ||
| Unusual commodities or mineralisation types (eg submarine nodules) | |||
| may warrant disclosure of detailed information. | |||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, rotary air | • | Diamond drilling accounts for the majority of the drilling through |
| **techniques ** | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc). |
• | mineralised zones completed in phase 1 with RC drilling used in phase 2 (2014). RC Drilling was completed using a 140mm face sampling hammer. Depths ranged from 83m to 144m within the main mineralisation |
| corridor. | |||
| • | Diamond core drilling comprised NQ2core and NQ2Core ‘tails’. | ||
| DDH holes ranged from 90-170m. RC Pre-collar depths ranged | |||
| from 30 to 110m. DC tails ranged in depth form 60 to 150m on these | |||
| pre-collars. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Drill sample | •Method of recording and assessing core and chip sample recoveries | • Drill core and RC samples recoveries were recorded on the |
| **recovery ** | and results assessed. | lithology field logs with observations compared to the core and |
| •Measures taken to maximise sample recovery and ensure | samples produced. | |
| representative nature of the samples. | • RC samples were checked by the geologist for volume, moisture | |
| •Whether a relationship exists between sample recovery and grade and | content, possible contamination and recoveries. Core was | |
| whether sample bias may have occurred due to preferential loss/gain of | reconstructed in continuous lengths where applicable and depths |
|
| fine/coarse material. | marker annotated and checked against core blocks. Any issues are | |
| discussed with the drillingcontractor. | ||
| **Logging ** | •Whether core and chip samples have been geologically and | • Core holes were geologically logged as part of the logging and |
| geotechnically logged to a level of detail to support appropriate Mineral | sampling process. All RC chip samples have a representative grab | |
| Resource estimation, mining studies and metallurgical studies. | sample placed in 1m intervals in chip trays and geologically logged. | |
| •Whether logging is qualitative or quantitative in nature. Core (or | • Logging of both RC and Core samples recorded lithology, | |
| costean, channel, etc) photography. | alteration, mineralisation, degree of oxidation, fabric and colour. | |
| •The total length and percentage of the relevant intersections logged. | Core was photographed in both dry and wet form. All RC 1m | |
| intervals are stored in plastic chip trays, labeled with interval and | ||
| hole number. Drill Core is labeled, stacked and palletized in timber | ||
| core trays at the Company’s core yard in Ovalle | ||
| • All holes(RC and core)were logged in full. | ||
| Subsampling | •If core, whether cut or sawn and whether quarter, half or all core taken. | • Half core was collected and samples generally on on 1m intervals |
| techniques | •If non-core, whether riffled, tube sampled, rotary split, etc and whether | or smaller intervals in specific cases where clear lithological |
| and sample | sampled wet or dry. | boundaries or structures were present. |
| **preparation ** | •For all sample types, the nature, quality and appropriateness of the | • The preparation of both RC and core samples followed industry |
| sample preparation technique. | practice. This involves oven drying, coarse crushing (core-only), | |
| •Quality control procedures adopted for all sub-sampling stages to | pulverization of total sample using LM2 mills until 95% passes 150 | |
| maximise representivity of samples. | micron. | |
| •Measures taken to ensure that the sampling is representative of the in | • Field QA-QC involved oversight of collection of riffle split sampling | |
| situ material collected, including for instance results for field | of single metre RC samples to approximately 3kg bags by site | |
| duplicate/second-half sampling. | geologist and review of core-cutting and collection of 1m samples | |
| •Whether sample sizes are appropriate to the grain size of the material | at core yard. | |
| being sampled. | • The sample sizes are considered appropriate to the grain size of | |
| the material being sampled and assayed. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Quality of | •The nature, quality and appropriateness of the assaying and laboratory | • All assays were conducted at an accredited assay laboratory Andes |
| assay data | procedures used and whether the technique is considered partial or | Analytical Assay Limitada. The analytical technique used for |
| and | total. | basemetals was a mixed acid digest with an ICP_AES finish. Any |
| laboratory **tests ** |
•For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument |
samples returning greater than 10,000ppm Cu were re-assayed with an Atomic Absorption (AAS) finish. Gold was assayed using an |
| make and model, reading times, calibrations factors applied and their | aqua regia and aas finish and subsequent high grade material using | |
| derivation, etc. | a 30g charge fire assay technique. | |
| •Nature of quality control procedures adopted (eg standards, blanks, | • This is considered appropriate for the material | |
| duplicates, external laboratory checks) and whether acceptable levels | • Laboratory QA/QC samples included the use of blanks, duplicates, | |
| of accuracy (ie lack of bias) and precision have been established. | standards (certified reference materials) as part of in-house | |
| procedures. Standard, Repeat and duplicate assays for drilling and | ||
| are within acceptable limits of accuracyfor this style of deposit. | ||
| Verification | The verification of significant intersections by either independent or | Significant intersections have been verified by the field geologist(s), |
| of sampling | alternative company personnel. | Exploration Manager and ManagingDirector. |
| and | •The use of twinned holes. | • Two twinned holes were collected in phase 2 drilling to compare |
| **assaying ** | •Documentation of primary data, data entry procedures, data verification, | RC with DDH results. The holes geological and assay variability |
| data storage (physical and electronic) protocols. | was within acceptable ranges. | |
| •Discuss any adjustment to assay data. | • Geological data was collected using handwritten log sheets which | |
| detailed geology (weathering, structure, alteration, mineralisation), | ||
| sampling quality and intervals, sample numbers and survey data. | ||
| This data, together with the assay data received from the laboratory | ||
| and subsequent survey data were entered into databases and | ||
| verified from the original laboratory data and field data. No |
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| adjustments were conducted |
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Location of | •Accuracy and quality of surveys used to locate drill holes (collar and | • The drill collar positions were picked-up using GPS. A Gyroscopic | |
| data points | down-hole surveys), trenches, mine workings and other locations used | downhole tools was used to collect survey information subsequent | |
| in Mineral Resource estimation. | to the completion of drilling where possible. | ||
| •Specification of the grid system used. | • Grid system is WGS84 Zone 19S. Local grid has also been used | ||
| •Quality and adequacy of topographic control. | for estimation purposes and geological interpretation and drill | ||
| planning. The local grid is design so that sections are | |||
| approximately perpendicular to the average strike of the resource. | |||
| The grid has a rotation of 60 degrees to the west. | |||
| • Surface RL data collected using GPS. Topography around the | |||
| resource is a hill in grid east to a valley grid west of the resource | |||
| area. A topographical wireframe (DTM) has been constructed using | |||
| the data provided by an external geophysical contractor who | |||
| undertook a detailed ground magnetic survey over the project area | |||
| in 2Q13 The survey provided - 50m line spacing with continuous | |||
| readings. | |||
| Data spacing | •Data spacing for reporting of Exploration Results. | • Drill holes for ByN is on an approximate 50m x 50m and 100m x 50m | |
| and | •Whether the data spacing and distribution is sufficient to establish the | grid spacing, which covers the majority of the main mineralised zone. | |
| distribution | degree of geological and grade continuity appropriate for the Mineral | • The drill spacing is adequate for the geological and grade continuity | |
| Resource and Ore Reserve estimation procedure(s) and classifications | and is appropriate for Mineral Resource and Ore Reserve | ||
| applied. | estimation. | ||
| •Whether sample compositing has been applied. | • Samples were composited to1 metre lengths in any drill hole | ||
| intercepts where 2m sampling was included in the resource | |||
| modelling. | |||
| Orientation | •Whether the orientation of sampling achieves unbiased sampling of | • Inclined RC and DDH drilling has been completed within the | |
| of data in | possible structures and the extent to which this is known, considering | mineralised zones with good correlation observed between data sets | |
| relation to | the deposit type. | • No orientation based sampling bias has been identified in the data | |
| geological | •If the relationship between the drilling orientation and the orientation of | to date. | |
| structure | key mineralised structures is considered to have introduced a sampling | ||
| bias, this should be assessed and reported if material. | |||
| Sample | •The measures taken to ensure sample security. | • Chain of Custody is managed by the Company. RC Samples were | |
| security | collected onsite generally in polyweave bags containing 5-10 | ||
| samples. The bags are securely tied and freighted directly to the | |||
| laboratory in secure cages with appropriate documentation listing | |||
| sample numbers and analytical methods requested. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • Diamond core was transported by Helix staff, logged and cut at the | ||
| Company secure core yard in the nearby town of Ovalle, with | ||
| samples bagged, batched and freighted directly to the laboratory | ||
| with appropriate documentation listing sample numbers and | ||
| analytical methods requested. | ||
| Audits or | •The results of any audits or reviews of sampling techniques and data. | • No additional QA/QC has been conducted for the Resource model |
| reviews | drilling. Umpire lab re-assaying of selected samples is planned as | |
| part of future development studies. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | •Type, reference name/number, location and ownership including | • The Blanco y Negro 1/20 mining concession is 100% owned by |
| tenement | agreements or material issues with third parties such as joint ventures, | Helix Resources Chile Limitada, a 100% owned subsidiary of Helix |
| and land | partnerships, overriding royalties, native title interests, historical sites, | Resource limited. |
| **tenure status ** | wilderness or national park and environmental settings. | • Title Blanco y Negro 1/20 of the concession is in good standing at |
| •The security of the tenure held at the time of reporting along with any | the time of reporting and is a mining lease. | |
| known impediments to obtaining a licence to operate in the area. | ||
| Exploration | •Acknowledgment and appraisal of exploration by other parties. | • No previous exploration has been conducted on the property prior |
| done by | to Helix involvement, however a small parcel of oxide material was | |
| **other parties ** | mined by artisanal miners and toll-treated at the nearby | |
| Government owned SX-EWplant | ||
| **Geology ** | •Deposit type, geological setting and style of mineralisation. | • Blanco y Negro is a shear and vein hosted copper and gold |
| system in a geological setting of volcanics, intrusives and | ||
| associated sediments, variably sheared and faulted within the | ||
| regionally significant Los Mantos Fault system. The material | ||
| included in the resource is dominated by oxide copper mineral | ||
| species. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Drill hole | A summary of all information material to the understanding of the | • Refer to ASX announcement on 10 September 2014 and drill |
| **Information ** | exploration results including a tabulation of the following information for all | collar table in main announcement |
| Material drill holes: | ||
o easting and northing of the drill hole collar |
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o elevation or RL (Reduced Level – elevation above sea level in |
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| metres) of the drill hole collar | ||
o dip and azimuth of the hole o down hole length and interception |
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| depth | ||
o hole length. |
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o If the exclusion of this information is justified on the basis that the |
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| information is not Material and this exclusion does not detract from | ||
| the understanding of the report, the Competent Person should | ||
| clearly explain why this is the case. | ||
| Data | •In reporting Exploration Results, weighting averaging techniques, | • Refer to section 3 |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | |
| **methods ** | grades) and cut-off grades are usually Material and should be stated. | |
| •Where aggregate intercepts incorporate short lengths of high grade | ||
| results and longer lengths of low grade results, the procedure used for | ||
| such aggregation should be stated and some typical examples of such | ||
| aggregations should be shown in detail. | ||
| •The assumptions used for any reporting of metal equivalent values | ||
| should be clearly stated. | ||
| Relationship | •These relationships are particularly important in the reporting of | • Drilling was generally aimed at intersecting mineralisation as close |
| between | Exploration Results. | to perpendicular as possible, based on the ability to position a drill |
| mineralisatio | •If the geometry of the mineralisation with respect to the drill hole angle | rig to do so. Holes used to estimate the resource are within this |
| n widths and | is known, its nature should be reported. | criteria |
| intercept | •If it is not known and only the down hole lengths are reported, there | |
| **lengths ** | should be a clear statement to this effect (eg ‘down hole length, true | |
| _width not known’). _ | ||
| **Diagrams ** | •Appropriate maps and sections (with scales) and tabulations of | • Refer to previous releases |
| 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. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Other | Other exploration data, if meaningful and material, should be reported | No additional data is available at the time of reporting |
| substantive | including (but not limited to): geological observations; geophysical | |
| exploration | survey results; geochemical survey results; bulk samples – size and | |
| data | method of treatment; metallurgical test results; bulk density, | |
| groundwater, geotechnical and rock characteristics; potential | ||
| deleterious or contaminating substances. | ||
| Further work | •The nature and scale of planned further work (eg tests for lateral | Refer to main body of this release |
| 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. |
Section 3 Estimation and Reporting of Mineral Resources
(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | •Measures taken to ensure that data has not been corrupted by, for | • Data used in the resource estimation was derived from the projects |
| **integrity ** | example, transcription or keying errors, between its initial collection and | drilling database held in Chile and replicated on the company |
| its use for Mineral Resource estimation purposes. | database in Australia. | |
| •Data validation procedures used. | • Validation has occurred through cross-checking of geology to assays, | |
| assay data compared to original files received from the laboratory by | ||
| the field staff in Chile, and then by Helix staff in Australia prior to | ||
| resource estimation. Hardcopies of both geological logs and certified | ||
| copies of laboratory assays are held in the Chile office. Original | ||
| laboratorydigital files are also available for cross reference. | ||
| **Site visits ** | •Comment on any site visits undertaken by the Competent Person and | • Mr. Mick Wilson, acting as a Competent Person for the geology and |
| the outcome of those visits. | exploration portions of the Table was involved with the project from its | |
| •If no site visits have been undertaken indicate why this is the case. | purchase in mid-2012 and has made numerous site visits during this | |
| time, including during the drilling program. He was part of the team | ||
| that developed the Geological Interpretation for the Blanco Y Negro | ||
| Deposit. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Geological | •Confidence in (or conversely, the uncertainty of ) the geological | • The geological interpretation is considered to be reasonable for this |
| **interpretatio n ** | interpretation of the mineral deposit. | style of deposit. The confidence of the resource figures is suitable for |
| •Nature of the data used and of any assumptions made. | Indicated and Inferred. | |
| •The effect, if any, of alternative interpretations on Mineral Resource | • Mineralisation has been defined by one main central mineralised zone | |
| estimation. | with a single zone of weak mineralisation in the HW and a single zone | |
| •The use of geology in guiding and controlling Mineral Resource | in the FW, a southern pod was also interpreted. The FW zone has | |
| estimation. | been based around a single intercept from hole ARBN13-002. The | |
| •The factors affecting continuity both of grade and geology. | main zone has been interpreted over six drill sections approximately 50m apart with actual mineralisation between 5 continuous sections. |
|
| The mineralised central zone has been extrapolated down dip and | ||
| terminated against a cross-cutting fault. Mineralisation has been | ||
| interpreted based on a nominal 0.3% Copper cut off or vein material | ||
| with a steep dip of -65 towards grid west. | ||
| • The geological interpretation has been based on geological and grade | ||
| boundaries. | ||
| • The factors for grade continuity are subjective with the limited drilling | ||
| information. The continuityof the Geologyis reasonablyunderstood. | ||
| **Dimensions ** | •The extent and variability of the Mineral Resource expressed as length | The main mineralised zone is approximately 250 metre along strike |
| (along strike or otherwise), plan width, and depth below surface to the | with mineralisation extended to depths from approximately 50 to 350 | |
| upper and lower limits of the Mineral Resource. | metres. The variable depths is due to the oblique nature of the | |
| intersection between the moderately westerly (grid) steep dipping | ||
| mineralised zone against the NW (grid) trending near vertical fault. | ||
| • The mineralised(true)width varies from 2 to 25 metres. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Estimation and | •The nature and appropriateness of the estimation technique(s) applied | • The resource estimation for grade was estimated using Inverse |
| modelling | and key assumptions, including treatment of extreme grade values, | distance to the power of 2. The software package for the grade |
| **techniques ** | domaining, interpolation parameters and maximum distance of | estimation and geological interpretation was Surpac. Copper, Gold, |
| extrapolation from data points. If a computer assisted estimation method | Silver and Density were estimate. Estimation for each element was |
|
| was chosen include a description of computer software and parameters | conducted using the same parameters and were estimated using two | |
| used. | passes. For the first pass a search radius of 105 metres along | |
| •The availability of check estimates, previous estimates and/or mine | strike/plunge with an anisotropy used for the search ellipsoid with a | |
| production records and whether the Mineral Resource estimate takes | ratio of 2:1 for major to semi-major direction and 3 to 1 for major to | |
| appropriate account of such data. | minor direction. For the second pass a 210m radius was used also | |
| •The assumptions made regarding recovery of by-products. | using the same anisotropy ratios for both the major to semi-major and | |
| •Estimation of deleterious elements or other non-grade variables of economic significance (eg sulphur for acid mine drainage characterisation). •In the case of block model interpolation, the block size in relation to the average sample spacing and the search employed. •Any assumptions behind modelling of selective mining units. •Any assumptions about correlation between variables. •Description of how the geological interpretation was used to control the resource estimates. |
major to minor directions. Estimation of grade was within interpreted hard grade boundaries based on a nominal 0.3% Copper with a minimum of 2m down hole. Internal dilution was domained separately when mineralised grade was less than 0.3% Copper for sections greater than 2m in width and estimated separately. • Blanco Y Negro is an updated resource. Mining by local artisanal miners has been conducted at surface. Historical records were available and reconcile against the current model, taking into account hand sorting of material. |
|
| •Discussion of basis for using or not using grade cutting or capping. •The process of validation, the checking process used, the comparison of model data to drill hole data, and use of reconciliation data if available. |
• No assumptions have been made for recovery of by-products. • No deleterious elements were estimated. • The resource was modelled using a 20 mN by 5 mE by 5 mZ (grid) with sub celling down to 5 mN by 1.25 mE and 1.25 mZ. Each ore |
|
| domain has been flagged, coded and modelled separately. | ||
| • The Z direction selected at 5 metres to reflect the possible selected | ||
| mining bench height. | ||
| • N/A | ||
| • Ore grade boundaries were defined within the Blanco Y Negro | ||
| vein/shear. | ||
| • No top cuts were applied for any of the elements estimated. | ||
| Coefficient of variation for the estimated elements were low. | ||
| • Block model volume validation was validated against ore solid | ||
| wireframes for each ore domain. Block model validation for grade was | ||
| conducted visuallybysection northings. | ||
| **Moisture ** | •Whether the tonnages are estimated on a dry basis or with natural | • Tonnages are estimated on dry basis. |
| moisture, and the method of determination of the moisture content. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Cut-off | •The basis of the adopted cut-off grade(s) or quality parameters applied. | • The nominal 0.3 % Copper cutoff grade used for the mineralized |
| **parameters ** | interpretation was chosen as this appears to reflect the natural | |
| backgroundgrade cutoff. | ||
| Mining | •Assumptions made regarding possible mining methods, minimum | • Only assumption made regarding to possible mining practices is the |
| factors or | mining dimensions and internal (or, if applicable, external) mining | setting of the model in the Z direction to 5 metres. The most likely |
| assumptions | dilution. It is always necessary as part of the process of determining | bench height for open pit mining (+/- 1m) assuming hydraulic |
| reasonable prospects for eventual economic extraction to consider | equipment is used. No account has been taken for mining dilution | |
| potential mining methods, but the assumptions made regarding mining | along or across strike. | |
| methods and parameters when estimating Mineral Resources may not | ||
| always be rigorous. Where this is the case, this should be reported with | ||
| an explanation of the basis of the mining assumptions made. | ||
| Metallurgical | •The basis for assumptions or predictions regarding metallurgical | • Surface material has been previously extracted from the Blanco Y |
| factors or | amenability. It is always necessary as part of the process of | Negro concession by artisanal miners and processed at a |
| assumptions | determining reasonable prospects for eventual economic extraction to | government-run copper plant approximately 30km by road from the |
| consider potential metallurgical methods, but the assumptions | mining concession. It is assumed that the oxide material in the | |
| regarding metallurgical treatment processes and parameters made | resource has similar characteristics to the material previously mined | |
| when reporting Mineral Resources may not always be rigorous. Where | Metallurgical testing will be undertaken part of any future | |
| this is the case, this should be reported with an explanation of the basis | advancement of the project within a Scoping study or similar. |
|
| of the metallurgical assumptions made. | ||
| Environmen- | •Assumptions made regarding possible waste and process residue | • Desktop studies and background work has commenced on various |
| tal factors or | disposal options. It is always necessary as part of the process of | aspects regarding average rainfall, ground water, land access and |
| assumptions | determining reasonable prospects for eventual economic extraction to | potential mining scenarios. More detailed work will form part of any |
| consider the potential environmental impacts of the mining and | future advancement of the project within a Scoping study or mine | |
| processing operation. While at this stage the determination of potential | permitting framework. | |
| environmental impacts, particularly for a greenfields project, may not | ||
| always be well advanced, the status of early consideration of these | ||
| potential environmental impacts should be reported. Where these | ||
| aspects have not been considered this should be reported with an | ||
| explanation of the environmental assumptions made. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Bulk density | •Whether assumed or determined. If assumed, the basis for the | • For the Blanco Y Negro resource bulk density values were determined |
| assumptions. If determined, the method used, whether wet or dry, the | for host rock and mineralised shear and vein material from selected | |
| frequency of the measurements, the nature, size and | that appear to be representative. | |
| representativeness of the samples. | • Density measurements were determined on diamond core samples | |
| •The bulk density for bulk material must have been measured by | using the 'Archemides Method' (weight in air v's weight in water). | |
| methods that adequately account for void spaces (vugs, porosity, etc), | • It was not possible to determine the density of much of the friable | |
| moisture and differences between rock and alteration zones within the | material, much of which was not recovered in DDHBN003 and | |
| deposit. | ARDBN005 | |
| •Discuss assumptions for bulk density estimates used in the evaluation | • Bulk density was assigned by weathering/material type interpreted from | |
| process of the different materials. | geological logging. | |
| Classification | •The basis for the classification of the Mineral Resources into varying | • Classification of the resource is based on drilling density, geological |
| confidence categories. | confidence and the position of the shoots within the main shear and | |
| •Whether appropriate account has been taken of all relevant factors (ie | vein material for each domain. The mineral resource has been | |
| relative confidence in tonnage/grade estimations, reliability of input | classified into Indicated and Inferred categories based on drill hole | |
| data, confidence in continuity of geology and metal values, quality, | spacing, geological confidence, and grade continuity and estimation | |
| quantity and distribution of the data). | quality. The combination of these factors together guides the coding of | |
| •Whether the result appropriately reflects the Competent Person’s view | the resource. Indicated material is generally material with average | |
| of the deposit. | drill spacing of 50 metres along with reasonable geology confidence and grade continuity. Inferred material is generally material that has |
|
| average drill spacing greater than 50 metres and or the geology or | ||
| grade continuity confidence is low. | ||
| • The drill and input data density is comprehensive in its coverage for | ||
| this style of resource for an open pit evaluation to allow reasonable | ||
| confidence for the tonnage and grade distribution to the levels of | ||
| Indicated and Inferred. | ||
| • The Mineral Resource estimated appropriately reflects the view of the | ||
| competentperson. | ||
| Audits or | •The results of any audits or reviews of Mineral Resource estimates. | • No External Audits have been conducted. Historical mining has |
| reviews | occurred by artisanal miners and records of the grade and tonnage of | |
| this material are available. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Discussion of | •Where appropriate a statement of the relative accuracy and confidence | • The relative accuracy of the Mineral Resource estimate is reflected in |
| relative | level in the Mineral Resource estimate using an approach or procedure | the reporting of the Mineral Resource as per the guidelines of the |
| accuracy/ | deemed appropriate by the Competent Person. For example, the | 2012 JORC code. |
| confidence | application of statistical or geostatistical procedures to quantify the | • The statement relates to global estimate of tonnes and grade for an |
| relative accuracy of the resource within stated confidence limits, or, if | Indicated and Inferred resource. | |
| such an approach is not deemed appropriate, a qualitative discussion | ||
| of the factors that could affect the relative accuracy and confidence of | ||
| the estimate. | ||
| •The statement should specify whether it relates to global or local | ||
| estimates, and, if local, state the relevant tonnages, which should be | ||
| relevant to technical and economic evaluation. Documentation should | ||
| include assumptions made and the procedures used. | ||
| •These statements of relative accuracy and confidence of the estimate | ||
| should be compared withproduction data, where available. |
Annexure A – HLX announcement: “Maiden Inferred Resource - Blanco Y Negro Project - Chile” dated 20 November 2013
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
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Helix Resources Limited (ASX:HLX) is a minerals exploration company focused on identification, acquisition and development of projects in Australia and Chile
MAIDEN INFERRED RESOURCE BLANCO Y NEGRO PROJECT – CHILE
Helix Resources Limited is pleased to announce a maiden inferred resource for the Company’s 100% owned Blanco y Negro Project in Region IV – Chile.
Inferred Resource Estimate – Blanco y Negro Project
Oxide: 1.4Mt @ 1.4% Cu, 0.5g/t Au*, estimated at a 0.4% Cu cut-off grade
(20,000t Copper, 23,000oz Gold)
Including a high-grade component of:
Oxide: 0.9Mt @ 2.0% Cu, 0.75g/t Au*, estimated at a 0.8% Cu Cut-off grade
(17,000t Copper, 20,000oz Gold)
*Numbers subject to rounding
This is a significant step for the Blanco y Negro project
-
The inferred resource provides a foundation for the Company to advance a high grade copper (+ gold) deposit that is nearby to infrastructure in Region IV.
-
The resource estimate and associated interpretation has provided a detailed geological model to assist in targeting extensions and repeats of the initial resource at Blanco y Negro.
-
Confirms the potential of the area to host deposits of meaningful size and grade that Helix is targeting as part of its broader exploration strategy for the region.
Table 1: Inferred Mineral Resource Estimate at various cut-off grades
| Cut Off Grade Cu% |
|||||
|---|---|---|---|---|---|
| Tonnes | Cu % | Au g/t | Cu (t) | Au (oz) | |
| 0 | 2,100,000 | 1.0 | 0.4 | 21,000 | 24,000 |
| 0.3 | 1,640,000 | 1.3 | 0.4 | 21,000 | 23,500 |
| 0.4 | 1,440,000 | 1.4 | 0.5 | 20,000 | 23,000 |
| 0.5 | 1,140,000 | 1.7 | 0.6 | 19,000 | 22,500 |
| 0.8 | 880,000 | 2.0 | 0.7 | 17,500 | 21,000 |
| 1.5 | 720,000 | 2.1 | 0.8 | 15,500 | 19,500 |
| 2 | 430,000 | 2.4 | 0.9 | 10,000 | 13,000 |
| 2.5 | 100,000 | 2.9 | 1.1 | 3,000 | 4,000 |
Note: Table contents subject to rounding to nearest significant figure
The resource estimate was undertaken by an external consultant Mr Byron Dumpleton based on geological interpretation by Helix’s Chilean and Australian technical team, following the 2,200m of RC/DDH drilling at Blanco y Negro during the 2013 field season. Details of the Estimate are contained in Appendix 1.
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1
Helix Resources Limited Suite 7 / 29 Ord Street, West Perth WA 6005 A.C.N. 009 138 738 Incorporated in Western Australia
P: +61 8 9321 2644 F: +61 8 9321 3909 Email: [email protected] www.helix.net.au Email: [email protected]
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
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Helix Resources Limited (ASX:HLX) is a minerals exploration company focused on identification, acquisition and development of projects in Australia and Chile
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Figure 1: Longsection of main shear direction showing approximate outline of resource wireframe
Future Activites
Based on the establishment of a maiden inferred resource for the Blanco y Negro Project and geological model derived from the resource process, Helix has identified a series of targets along strike and within the mining lease that will be proiritised for future programs.
The geological model referenced back to surface magnetics (Figure 2) illustrates several zones of interest, where late-stage NE striking faults appear to offset the main NW shearzone.
Surface mapping over a strike of ~600m has been undertaken along the southern extension of the offsets of the main trend and further mapping is planned.
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2
Helix Resources Limited Suite 7 / 29 Ord Street, West Perth WA 6005 A.C.N. 009 138 738 Incorporated in Western Australia
P: +61 8 9321 2644 F: +61 8 9321 3909 Email: [email protected] www.helix.net.au Email: [email protected]
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
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Helix Resources Limited (ASX:HLX) is a minerals exploration company focused on identification, acquisition and development of projects in Australia and Chile
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Figure 2: Blanco Y Negro Mining concession on ground magnetics with activites to date and future targets.
Table 2: Drill Collar coordinates
| Northing WGS84 |
Easting WGS84 |
|||||||
|---|---|---|---|---|---|---|---|---|
| Site ID | Local N | Local E | RL | Azimuth | Dip | Length | ||
| ARBN13-001 | 6603729 | 294889 | 100019 | 9825 | 446 | 0 | -90 | 104 |
| ARBN13-002 | 6603749 | 294901 | 100031 | 9845 | 444 | 60 | -55 | 120 |
| ARBN13-003 | 6603679 | 294974 | 99934 | 9874 | 454 | 60 | -80 | 169 |
| ARBN13-004 | 6603894 | 294865 | 100174 | 9887 | 441 | 60 | -58 | 120 |
| ARBN13-005 | 6603827 | 294915 | 100091 | 9897 | 439 | 60 | -60 | 83 |
| ARBN13-006 | 6603919 | 294899 | 100179 | 9929 | 437 | 60 | -55 | 130 |
| ARDBN13-002 | 6604074 | 294775 | 100375 | 9899 | 460 | 60 | -60 | 159.3 |
| ARDBN13-003 | 6604253 | 294634 | 100601 | 9866 | 450 | 60 | -52 | 151.4 |
| ARDBN13-004 | 6603826 | 294913 | 100091 | 9894 | 439 | 60 | -83 | 140.2 |
| ARDBN13-005 | 6603832 | 294941 | 100082 | 9922 | 445 | 60 | -55 | 100.8 |
| ARDBN13-006 | 6603918 | 294897 | 100179 | 9927 | 437 | 60 | -87 | 40 |
| ARDBN13-007 | 6603393 | 294992 | 99676 | 9745 | 468 | 60 | -60 | 102 |
| ARDBN13-008 | 6603698 | 294926 | 99974 | 9842 | 447 | 60 | -80 | 248.2 |
| ARDBN13-009 | 6603629 | 294999 | 99877 | 9870 | 466 | 60 | -85 | 60 |
| ARDBN13-010 | 6603443 | 295089 | 99671 | 9855 | 495 | 60 | -55 | 240 |
| DDHBN13-001 | 6603751 | 294989 | 99988 | 9923 | 461 | 60 | -50 | 91.6 |
| DDHBN13-002 | 6603678 | 295065 | 99887 | 9952 | 478 | 60 | -70 | 91.6 |
| DDHBN13-003 | 6603699 | 295011 | 99932 | 9915 | 469 | 60 | -80 | 122 |
| DDHBN13-004 | 6603627 | 294999 | 99876 | 9869 | 466 | 60 | -63 | 170.3 |
| DDHHU12-001 | 6603717 | 294951 | 99978 | 9873 | 454 | 50 | -60 | 309.75 |
Key to collar names: ARBN-XXX - RC Only, ARDBN-XXX - RC with DDH tail, DDHBN-XXX - DDH Only
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3
Helix Resources Limited Suite 7 / 29 Ord Street, West Perth WA 6005 A.C.N. 009 138 738 Incorporated in Western Australia
P: +61 8 9321 2644 F: +61 8 9321 3909 Email: [email protected] www.helix.net.au Email: [email protected]
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
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Helix Resources Limited (ASX:HLX) is a minerals exploration company focused on identification, acquisition and development of projects in Australia and Chile
Competent Persons Statement for the Blanco Y Negro Resource.
The information in this report that relates to Exploration Results is based on information compiled by Mick Wilson and is a full-time employee of Helix Resources Limited. Mr Wilson is a member the Australasian Institute of Mining and Metallurgy. Mr Wilson has sufficient experience of relevance to the style of mineralisation and the types of deposits under consideration, and to the activities undertaken, the qualify as Competent Persons as defined in the 2012 Addition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves.
The information in this report that relates to Mineral Resource Estimation is based on information compiled by Mr Byron Dumpleton a Consultant Resource Geologist from his company BKD Resources Pty Ltd. Mr Dumpleton is a member of the Australian Institute of Geoscientist. Mr Dumpleton has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Mineral Exploration Results, Mineral Resources and Ore Reserves” (JORC Code). Mr Dumpleton consents to the inclusion in this report of the matters based on their information in the form and context in which they appear.
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4
Helix Resources Limited Suite 7 / 29 Ord Street, West Perth WA 6005 A.C.N. 009 138 738 Incorporated in Western Australia
Email: [email protected] Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
APPENDIX 1
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | Nature and quality of sampling (eg cut channels, random chips, or | |
| techniques | specific specialised industry standard measurement tools appropriate | The Blanco y Negro deposit was delineated using Reverse |
| to the minerals under investigation, such as down hole gamma | Circulation (RC) and Diamond Core (DC) drilling. A total of 13 holes | |
| sondes, or handheld XRF instruments, etc). These examples should | were used to delineate and bound the resource estimate. Holes were | |
| not be taken as limiting the broad meaning of sampling. | sited on an approximate 100 x 50m grid and were generally | |
| Include reference to measures taken to ensure sample representivity | orientated to the Grid East (060o) at dips between -50 & 80o. | |
| and the appropriate calibration of any measurement tools or systems | The drill hole locations were located by handheld GPS. Down hole | |
| used. | surveys were conducted post drilling using a down-hole gyro system | |
| Aspects of the determination of mineralisation that are Material to the | in five of the drill holes completed. No down-hole surveys were | |
| Public Report. | conducted in the remaining holes. | |
| In cases where ‘industry standard’ work has been done this would be | RC drilling was used to obtain generally 1m and 2m samples from | |
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | which 3kg was pulverized to produce a charge for geochemical | |
| m samples from which 3 kg was pulverised to produce a 30 g charge | analysis. Diamond core was NQ2size for diamond coring and tails off | |
| for fire assay’). In other cases more explanation may be required, | RC pre-collars. Core was split and half-core was collected over 1m | |
| such as where there is coarse gold that has inherent sampling | intervals within mineralised zones and prepared and assayed using | |
| problems. Unusual commodities or mineralisation types (eg | the same methods for RC . | |
| submarine nodules) may warrant disclosure of detailed information. | ||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, rotary air | Diamond drilling accounts for the majority of the drilling through |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | mineralised zones completed to date. |
| or standard tube, depth of diamond tails, face-sampling bit or other | RC Drilling was completed using a 140mm face sampling hammer. | |
| type, whether core is oriented and if so, by what method, etc). | Depths ranged from 83m to 120m within the main mineralisation | |
| corridor. | ||
| Diamond core drilling comprised NQ2core and NQ2Core ‘tails’. DDH | ||
| holes ranged from 90-170m. RC Pre-collar depths ranged from 30 to | ||
| 110m. DC tails ranged in depth form 60 to 150m on these pre-collars. | ||
| Drill sample | Method of recording and assessing core and chip sample recoveries | Drill core and RC samples recoveries were recorded on the lithology |
| recovery | and results assessed. | field logs with observations compared to the core and samples |
| Measures taken to maximise sample recovery and ensure | produced. | |
| representative nature of the samples. | RC samples were checked by the geologist for volume, moisture | |
| Whether a relationship exists between sample recovery andgrade | content, possible contamination and recoveries. Core was |
1
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| and whether sample bias may have occurred due to preferential | reconstructed in continuous lengths where applicable and depths | |
| loss/gain of fine/coarse material. | marker annotated and checked against core blocks. Any issues are | |
| discussed with the drilling contractor. | ||
| There were some issues with recovery of drill core within the | ||
| mineralised zones in holes DDHBN13-001 and ARDBN-005, where | ||
| core recovery was approximately 50-60% due to the friable nature of | ||
| the mineralisation (breccia). | ||
| The copper and gold assays may be more reliable with better | ||
| recovery in the affected holes. The company plans to “twin” the | ||
| affected holes in a future program to obtain better recovery via RC or | ||
| wider diameter DDH core as part of a future program. | ||
| Logging | Whether core and chip samples have been geologically and | Core holes were geologically logged as part of the logging and |
| geotechnically logged to a level of detail to support appropriate | sampling process. All RC chip samples have a representative grab | |
| Mineral Resource estimation, mining studies and metallurgical | sample placed in 1m intervals in chip trays and geologically logged. | |
| studies. | Logging of both RC and Core samples recorded lithology, alteration, | |
| Whether logging is qualitative or quantitative in nature. Core (or | mineralisation, degree of oxidation, fabric and colour. Core was | |
| costean, channel, etc) photography. | photographed in both dry and wet form. All RC 1m intervals are | |
| The total length and percentage of the relevant intersections logged. | stored in plastic chip trays, labeled with interval and hole number. Drill | |
| Core is labeled, stacked and palletized in timber core trays at the | ||
| Company’s core yard in Ovalle | ||
| All holes (RC and core) were logged in full. | ||
| Sub-sampling | If core, whether cut or sawn and whether quarter, half or all core |
Half core was collected and samples generally on on 1m intervals or |
| techniques | taken. | smaller intervals in specific cases where clear lithological boundaries |
| and sample | If non-core, whether riffled, tube sampled, rotary split, etc and | or structures were present. |
| preparation | whether sampled wet or dry. | The preparation of both RC and core samples followed industry |
| For all sample types, the nature, quality and appropriateness of the | practice. This involves oven drying, coarse crushing (core-only), | |
| sample preparation technique. | pulverization of total sample using LM2 mills until 95% passes 150 | |
| Quality control procedures adopted for all sub-sampling stages to | micron. | |
| maximise representivity of samples. | Field QA-QC involved oversight of collection of riffle split sampling of | |
| Measures taken to ensure that the sampling is representative of the in | single metre RC samples to approximately 3kg bags by site geologist |
|
| situ material collected, including for instance results for field | and review of core-cutting and collection of 1m samples at core yard. | |
| duplicate/second-half sampling. | The sample sizes are considered appropriate to the grain size of the | |
| Whether sample sizes are appropriate to the grain size of the material | material being sampled and assayed. |
|
| being sampled. | ||
| Quality of | The nature, quality and appropriateness of the assaying and | All assays were conducted at an accredited assay laboratory Andes |
| assay data | laboratory procedures used and whether the technique is considered | Analytical Assay Limitada. The analytical technique used for |
| and | partial or total. | basemetals was a mixed acid digest with an ICP_AES finish. Any |
| laboratory | Forgeophysical tools, spectrometers, handheld XRF instruments, etc, | samples returning greater than 10,000ppm Cu were re-assayed with |
2
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| tests | the parameters used in determining the analysis including instrument | an Atomic Absorption (AAS) finish. Gold was assayed using an aqua |
| make and model, reading times, calibrations factors applied and their | regia and aas finish and subsequent high grade material using a 30g | |
| derivation, etc. | charge fire assay technique. | |
| Nature of quality control procedures adopted (eg standards, blanks, | This is considered appropriate for the material | |
| duplicates, external laboratory checks) and whether acceptable levels | N/A |
|
| of accuracy (ie lack of bias) and precision have been established. | Laboratory QA/QC samples included the use of blanks, duplicates, | |
| standards (certified reference materials) as part of in-house | ||
| procedures. Standard, Repeat and duplicate assays for drilling and | ||
| are within acceptable limits of accuracy for this style of deposit. | ||
| Verification of | The verification of significant intersections by either independent or |
Significant intersections have been verified by the field geologist(s), |
| sampling and | alternative company personnel. | Exploration Manager and Managing Director. |
| assaying | The use of twinned holes. | No twinned holes have been completed to date, however are planned |
| Documentation of primary data, data entry procedures, data | for a future program. | |
| verification, data storage (physical and electronic) protocols. | Geological data was collected using handwritten log sheets which | |
| Discuss any adjustment to assay data. | detailed geology (weathering, structure, alteration, mineralisation), | |
| sampling quality and intervals, sample numbers and survey data. This | ||
| data, together with the assay data received from the laboratory and | ||
| subsequent survey data were entered into databases and verified | ||
| from the original laboratory data and field data. | ||
| N/A | ||
| Location of | Accuracy and quality of surveys used to locate drill holes (collar and | The drill collar positions were picked-up using GPS. A Gyroscopic |
| data points | down-hole surveys), trenches, mine workings and other locations | downhole tools was used to collect survey information subsequent to |
| used in Mineral Resource estimation. | the completion of drilling where possible. | |
| Specification of the grid system used. | Grid system is WGS84 Zone 19S. Local grid has also been used for | |
| Quality and adequacy of topographic control. | estimation purposes and geological interpretation and drill planning. | |
| The local grid is design so that sections are approximately | ||
| perpendicular to the average strike of the resource. The grid has a | ||
| rotation of 60 degrees to the west. | ||
| Surface RL data collected using GPS. Topography around the | ||
| resource is a hill in grid east to a valley grid west of the resource | ||
| area. A topographical wireframe (DTM) has been constructed using | ||
| the data provided by an external geophysical contractor who | ||
| undertook a detailed ground magnetic survey over the project area in | ||
| 2Q13 The survey provided - 50m line spacing with continuous | ||
| readings. | ||
| Data spacing | Data spacing for reporting of Exploration Results. | Drill holes for ByN is on an approximate 100m x 50m grid spacing, |
| and | Whether the data spacing and distribution is sufficient to establish the | which covers the majorityof the main mineralised zone. |
3
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| distribution | degree of geological and grade continuity appropriate for the Mineral | The drill spacing is adequate for the geological and grade continuity |
| Resource and Ore Reserve estimation procedure(s) and | and is appropriate for Mineral Resource and Ore Reserve estimation. | |
| classifications applied. | Samples were composited to1 metre lengths in any drill hole | |
| Whether sample compositing has been applied. | intercepts where 2m sampling was included in the resource | |
| modelling. | ||
| Orientation of | Whether the orientation of sampling achieves unbiased sampling of | Inclined RC and DDH drilling has been completed within the |
| data in | possible structures and the extent to which this is known, considering | mineralised zones with good correlation observed between data sets |
| relation to | the deposit type. | No orientation based sampling bias has been identified in the data to |
| geological | If the relationship between the drilling orientation and the orientation | date. |
| structure | of key mineralised structures is considered to have introduced a | |
| sampling bias, this should be assessed and reported if material. | ||
| Sample | The measures taken to ensure sample security. | Chain of Custody is managed by the Company. RC Samples were |
| security | collected onsite generally in polyweave bags containing 5-10 | |
| samples. The bags are securely tied and freighted directly to the | ||
| laboratory in secure cages with appropriate documentation listing | ||
| sample numbers and analytical methods requested. | ||
| Diamond core was transported by Helix staff, logged and cut at the | ||
| Company secure core yard in the nearby town of Ovalle, with | ||
| samples bagged, batched and freighted directly to the laboratory with | ||
| appropriate documentation listing sample numbers and analytical | ||
| methods requested. | ||
| Audits or | The results of any audits or reviews of sampling techniques and data. | No additional QA/QC has been conducted for the 2013 Resource |
| reviews | model drilling. Umpire lab re-assaying of selected samples is planned | |
| as part of future development studies. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | Type, reference name/number, location and ownership including | The Blanco y Negro 1/20 mining concession is 100% owned by Helix |
| tenement and | agreements or material issues with third parties such as joint |
Resources Chile Limitada, a 100% owned subsidiary of Helix |
| land tenure | ventures, partnerships, overriding royalties, native title interests, | Resource limited. |
| status | historical sites, wilderness or national park and environmental | Title Blanco y Negro 1/20 of the concession is in good standing at the |
| settings. | time of reporting and is a mining lease. | |
| 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. |
4
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Exploration | Acknowledgment and appraisal of exploration by other parties. | N/A |
| done by other | ||
| parties | ||
| Geology | Deposit type, geological setting and style of mineralisation. | Blanco y Negro is a shear and vein hosted copper and gold system in |
| a geological setting of volcanics, intrusives and associated | ||
| sediments, variably sheared and faulted within the regionally | ||
| significant Los Mantos Fault system. The material included in the | ||
| resource is dominated by oxide copper mineral species (dominate | ||
| species, malachite and azurite). | ||
| Drill hole | A summary of all information material to the understanding of the | Refer to drill collar table in main announcement |
| Information | exploration results including a tabulation of the following information | |
| for all Material drill holes: | ||
o easting and northing of the drill hole collar |
||
o elevation or RL (Reduced Level – elevation above sea level in |
||
| metres) of the drill hole collar | ||
o dip and azimuth of the hole |
||
o down hole length and interception depth |
||
o hole length. |
||
| If the exclusion of this information is justified on the basis that the | ||
| information is not Material and this exclusion does not detract from | ||
| the understanding of the report, the Competent Person should clearly | ||
| explain why this is the case. | ||
| Data | In reporting Exploration Results, weighting averaging techniques, | Refer to section 3 |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | |
| methods | grades) and cut-off grades are usually Material and should be stated. | |
| Where aggregate intercepts incorporate short lengths of high grade | ||
| results and longer lengths of low grade results, the procedure used | ||
| for such aggregation should be stated and some typical examples of | ||
| such aggregations should be shown in detail. | ||
| The assumptions used for any reporting of metal equivalent values | ||
| should be clearly stated. | ||
| Relationship | These relationships are particularly important in the reporting of | Drilling was generally aimed at intersecting mineralisation as close to |
| between | Exploration Results. | perpendicular as possible, based on the ability to position a drill rig to |
| mineralisation | If the geometry of the mineralisation with respect to the drill hole |
do so. Holes used to estimate the resource are within this criteria |
| widths and | angle is known, its nature should be reported. | |
| 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’). _ |
5
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Diagrams | Appropriate maps and sections (with scales) and tabulations of | Refer to previous releases |
| intercepts should be included for any significant discovery being | ||
| reported These should include, but not be limited to a plan view of | ||
| drill hole collar locations and appropriate sectional views. | ||
| Balanced | Where comprehensive reporting of all Exploration Results is not | N/A |
| reporting | practicable, representative reporting of both low and high grades | |
| and/or widths should be practiced to avoid misleading reporting of | ||
| Exploration Results. | ||
| Other | Other exploration data, if meaningful and material, should be reported | No additional data is available at the time of reporting |
| substantive | including (but not limited to): geological observations; geophysical | |
| exploration | survey results; geochemical survey results; bulk samples – size and | |
| data | method of treatment; metallurgical test results; bulk density, | |
| groundwater, geotechnical and rock characteristics; potential | ||
| deleterious or contaminating substances. | ||
| Further work | The nature and scale of planned further work (eg tests for lateral | Refer to main body of this release |
| 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. |
Section 3 Estimation and Reporting of Mineral Resources
(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | Measures taken to ensure that data has not been corrupted by, for | Data used in the resource estimation was derived from the projects |
| integrity | example, transcription or keying errors, between its initial collection | drilling database held in Chile and replicated on the company |
| and its use for Mineral Resource estimation purposes. | database in Australia. | |
| Data validation procedures used. | Validation has occurred through cross-checking of geology to assays, | |
| assay data compared to original files received from the laboratory by | ||
| the field staff in Chile, and then by Helix staff in Australia prior to | ||
| resource estimation. Hardcopies of both geological logs and certified | ||
| copies of laboratory assays are held in the Chile office. Original | ||
| laboratory digital files are also available for cross reference. | ||
| Site visits | Comment on any site visits undertaken by the Competent Person and | Mr. Mick Wilson, acting as a Competent Person for the geology and |
| the outcome of those visits. | exploration portions of the Table was involved with the project from its | |
| If no site visits have been undertaken indicate why this is the case. | purchase in mid-2012 and has made numerous site visits during this | |
| time,includingduringthe drilling program. He waspart of the team |
6
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| that developed the Geological Interpretation for the Blanco Y Negro | ||
| Deposit. | ||
| Geological | Confidence in (or conversely, the uncertainty of ) the geological | The confidence of the resource figures is suitable for Inferred. The |
| interpretation | interpretation of the mineral deposit. | continuity of the geology is reasonably understood but there is not |
| Nature of the data used and of any assumptions made. | enough drilling information for grade, hence actual metal distribution | |
| The effect, if any, of alternative interpretations on Mineral Resource | and is not yet suitable for public reserve evaluation. | |
| estimation. | Mineralisation has been defined by one main central mineralised | |
| The use of geology in guiding and controlling Mineral Resource | zone with a single zone of weak mineralisation in the HW and a single | |
| estimation. | zone in the FW. The FW zone has been based around a single | |
| The factors affecting continuity both of grade and geology. | intercept from hole ARBN13-002. The main zone has been | |
| interpreted over six drill sections approximately 50m apart with actual | ||
| mineralisation between 4 continuous sections. The mineralised | ||
| central zone has been extrapolated down dip and terminated against | ||
| a cross-cutting fault. Mineralisation has been interpreted based on a | ||
| nominal 0.3% Cu cut off or vein material with a steep dip of -65 | ||
| towards grid west. | ||
| The geological interpretation has been based on geological and | ||
| grade boundaries | ||
| The factors for grade continuity are subjective with the limited drilling | ||
| information. The continuity of the Geology is reasonably understood. | ||
| Dimensions | The extent and variability of the Mineral Resource expressed as | The main mineralised zone is approximately 250 metre along strike |
| length (along strike or otherwise), plan width, and depth below | with mineralisation extended to depths from approximately 50 to 350 | |
| surface to the upper and lower limits of the Mineral Resource. | metres. The variable depths is due to the oblique nature of the | |
| intersection between the moderately westerly (grid) steep dipping | ||
| mineralised zone against the NW (grid) trending near vertical fault. | ||
| The mineralised (true) width varies from 2 to 15 metres. | ||
| Estimation | The nature and appropriateness of the estimation technique(s) | The resource estimation for grade was estimated using Inverse |
| and modelling | applied and key assumptions, including treatment of extreme grade |
distance to the power of 2. The software package for the grade |
| techniques | values, domaining, interpolation parameters and maximum distance | estimation and geological interpretation was Surpac. Copper, Gold, |
| of extrapolation from data points. If a computer assisted estimation | Silver and Density were estimate. Estimation for each element | |
| method was chosen include a description of computer software and | was conducted using the same parameters and were estimated using | |
| parameters used. | two passes. For the first pass a search radius of 100 metres along | |
| The availability of check estimates, previous estimates and/or mine | strike/plunge with an anisotropy used for the search ellipsoid with a | |
| production records and whether the Mineral Resource estimate takes | ratio of 2:1 for major to semi-major direction (i.e. down dip direction | |
| appropriate account of such data. | the distance is 50 m) and 5 to 1 for major to minor direction (i.e. 20m | |
| The assumptions made regarding recovery of by-products. | across strike/plunge). For the second pass a 200m radius was used | |
| Estimation of deleterious elements or other non-grade variables of | also using the same anisotropy ratios for both the major to semi- | |
| major and major to minor directions. Estimation ofgrade was within |
7
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| economic significance (eg sulphur for acid mine drainage | interpreted hard grade boundaries based on a nominal 0.3 Cu % with | |
| characterisation). | a minimum of 2m down hole. Internal dilution was domained | |
| In the case of block model interpolation, the block size in relation to | separately when mineralised grade was less than 0.3% Cu for | |
| the average sample spacing and the search employed. | sections greater than 2m in width and estimated separately. | |
| Any assumptions behind modelling of selective mining units. | Blanco Y Negro is a maiden resource. Mining by local artisanal | |
| Any assumptions about correlation between variables. | miners has been conducted at surface. No historical records were | |
| Description of how the geological interpretation was used to control | available to reconcile against the current model. | |
| the resource estimates. | No assumptions have been made for recovery of by-products. | |
| Discussion of basis for using or not using grade cutting or capping. | No deleterious elements were estimated. | |
| The process of validation, the checking process used, the comparison | The resource was modelled using a 20 mN by 5 mE by 5 mZ (grid) |
|
| of model data to drill hole data, and use of reconciliation data if | with sub celling down to 5 mN by 1.25 mE and 1.25 mZ. Each ore | |
| available. | domain has been flagged, coded and modelled separately. | |
| The Z direction selected at 5 metres to reflect the possible selected | ||
| mining bench height. | ||
| N/A | ||
| Ore grade boundaries were defined within the Blanco Y Negro | ||
| vein/shear. | ||
| No top cuts were applied for any of the elements estimated. | ||
| Coefficient of variation for the estimated elements were low. | ||
| Block model volume validation was validated against ore solid | ||
| wireframes for each ore domain. Block model validation for grade was | ||
| conducted visually by section northings. | ||
| Moisture | Whether the tonnages are estimated on a dry basis or with natural | Tonnages are estimated on dry bases. |
| moisture, and the method of determination of the moisture content. | ||
| Cut-off | The basis of the adopted cut-off grade(s) or quality parameters | The nominal 0.3 % Cu cutoff grade used for the mineralized |
| parameters | applied. | interpretation was chosen as this appears to reflect the natural |
| background grade cutoff. | ||
| Mining factors | Assumptions made regarding possible mining methods, minimum |
Only assumption made regarding to possible mining practices is the |
| or | mining dimensions and internal (or, if applicable, external) mining | setting of the model in the Z direction to 5 metres. The most likely |
| assumptions | dilution. It is always necessary as part of the process of determining | bench height for open pit mining (+/- 1m) assuming hydraulic |
| reasonable prospects for eventual economic extraction to consider | equipment is used. No account has been taken for mining dilution | |
| potential mining methods, but the assumptions made regarding | along or across strike. | |
| mining methods and parameters when estimating Mineral Resources | ||
| may not always be rigorous. Where this is the case, this should be | ||
| reported with an explanation of the basis of the mining assumptions | ||
| made. |
8
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Metallurgical | The basis for assumptions or predictions regarding metallurgical | Surface material has been previously extracted from the Blanco Y |
| factors or | amenability. It is always necessary as part of the process of | Negro concession by artisanal miners and processed at a |
| assumptions | determining reasonable prospects for eventual economic extraction to | government-run copper SX-EW plant approximately 30km by road |
| consider potential metallurgical methods, but the assumptions | from the mining concession. It is assumed that the material in the | |
| regarding metallurgical treatment processes and parameters made | resource has similar characteristics to the material previously mined | |
| when reporting Mineral Resources may not always be rigorous. | Metallurgical testing will be undertaken part of any future | |
| Where this is the case, this should be reported with an explanation of | advancement of the project within a Scoping study or similar. | |
| the basis of the metallurgical assumptions made. | ||
| Environmen- | Assumptions made regarding possible waste and process residue | Desktop studies and background work has commenced on various |
| tal factors or | disposal options. It is always necessary as part of the process of | aspects regarding average rainfall, ground water, land access and |
| assumptions | determining reasonable prospects for eventual economic extraction to | potential mining scenarios. More detailed work will form part of any |
| consider the potential environmental impacts of the mining and | future advancement of the project within a Scoping study or mine | |
| processing operation. While at this stage the determination of | permitting framework. | |
| potential environmental impacts, particularly for a greenfields project, | ||
| may not always be well advanced, the status of early consideration of | ||
| these potential environmental impacts should be reported. Where | ||
| these aspects have not been considered this should be reported with | ||
| an explanation of the environmental assumptions made. | ||
| Bulk density | Whether assumed or determined. If assumed, the basis for the | For the Blanco Y Negro resource bulk density values were |
| assumptions. If determined, the method used, whether wet or dry, the | determined for host rock and mineralised shear and vein material |
|
| frequency of the measurements, the nature, size and | from selected that appear to be representative. | |
| representativeness of the samples. | Density measurements were determined on diamond core samples | |
| The bulk density for bulk material must have been measured by | using the 'Archemides Method' (weight in air v's weight in water). | |
| methods that adequately account for void spaces (vugs, porosity, | It was not possible to determine the density of much of the friable | |
| etc), moisture and differences between rock and alteration zones | material, much of which was not recovered in DDHBN13-001 and | |
| within the deposit. | ARDBN005 | |
| Discuss assumptions for bulk density estimates used in the | Bulk density was assigned by weathering/material type interpreted | |
| evaluation process of the different materials. | from geological logging. | |
| Classification | The basis for the classification of the Mineral Resources into varying | Classification of the resource is based on drilling density, geological |
| confidence categories. | confidence and the position of the shoots within the main shear and | |
| Whether appropriate account has been taken of all relevant factors (ie | vein material within the two passes of the estimation runs. All material |
|
| relative confidence in tonnage/grade estimations, reliability of input | within the interpreted shear/vein zone within the two passes are | |
| data, confidence in continuity of geology and metal values, quality, | classified as Inferred. | |
| quantity and distribution of the data). | Appropriate account has been taken of all relevant factors | |
| Whether the result appropriately reflects the Competent Person’s | yes | |
| view of the deposit. | ||
| Audits or | The results of any audits or reviews of Mineral Resource estimates. | No External Audits have been conducted. This is a maiden resource, |
| reviews | historical mining has occurred by artisanal miners. |
9
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Discussion of | Where appropriate a statement of the relative accuracy and | The relative accuracy of the Mineral Resource estimate is reflected in |
| relative | confidence level in the Mineral Resource estimate using an approach | the reporting of the Mineral Resource as per the guidelines of the |
| accuracy/ | or procedure deemed appropriate by the Competent Person. For | 2012 JORC code. |
| confidence | example, the application of statistical or geostatistical procedures to | The statement relates to global estimate of tonnes and grade for an |
| quantify the relative accuracy of the resource within stated confidence | Inferred resource. |
|
| limits, or, if such an approach is not deemed appropriate, a qualitative | No production data is available. |
|
| discussion of the factors that could affect the relative accuracy and | ||
| confidence of the estimate. | ||
| The statement should specify whether it relates to global or local | ||
| estimates, and, if local, state the relevant tonnages, which should be | ||
| relevant to technical and economic evaluation. Documentation should | ||
| include assumptions made and the procedures used. | ||
| These statements of relative accuracy and confidence of the estimate | ||
| should be compared withproduction data, where available. |
10
Annexure B - HLX announcement: “Addendum to Maiden Inferred Resource Chile Announcement” dated 28 November 2013
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
==> picture [64 x 32] intentionally omitted <==
28 November 2013
The Manager Company Announcements Platform Australian Securities Exchange
BY ELECTRONIC LODGEMENT
Addendum to Blanco Y Negro Maiden Inferred Resource Announcement 20/11/2013
The Company provides an Addendum to the Blanco Y Negro Maiden Inferred Resource Announcement of 20 November 2013 in order to comply with ASX Listing Rule 5.8.1.
Yours sincerely
==> picture [137 x 46] intentionally omitted <==
Joneen McNamara Company Secretary
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Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
Email: [email protected] Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
==> picture [64 x 32] intentionally omitted <==
ADDENDUM TO MAIDEN INFERRED RESOURCE BLANCO Y NEGRO PROJECT –CHILE ANNOUNCEMENT.
Helix Resources Limited submits the following information as an Addendum to their Maiden Inferred Resource Blanco Y Negro announcement dated 20[th] November 2013. Further details may be found in Table1 of APPENDIX 1 of the announcement dated 20[th] November 2013.
Geology and Geological Interpretation
Blanco Y Negro is a shear and vein hosted copper and gold system in a geological setting of volcanic, intrusive and associated sediments that are variably sheared and faulted within the regionally significant Los Mantos Fault system. The material included in the resource is dominated by oxide copper mineral species mainly malachite and azurite.
The confidence of the geology of the resource is suitable for Inferred resource status. The continuity of the geology is reasonably understood but there is not sufficient drilling information for grade, hence actual metal distribution and it is not yet suitable for public reserve evaluation.
Mineralisation has been defined by one main central mineralised zone with a single zone of weak mineralisation in the HW and a single zone in the FW. The FW zone has been based around a single intercept from hole ARBN13-002. The main zone has been interpreted over six drill sections approximately 50m apart with actual mineralisation between 4 continuous sections. The mineralised central zone has been extrapolated down dip and terminated against a cross-cutting fault.
Mineralisation has been interpreted based on a nominal 0.3% Cu cut off or vein material with a steep dip of -65[o] towards grid west.
The geological interpretation has been based on geological and grade boundaries.
The factors for grade continuity are subjective with the limited drilling information. The continuity of the geology is reasonably understood.
Sampling and Sub-sampling Techniques
The Blanco Y Negro deposit was delineated using Reverse Circulation (RC) and Diamond Core (DC) drilling. A total of 13 holes were used to delineate and bound the resource estimate. Holes were sited on an approximate 100 x 50m grid and were generally orientated to the Grid East (060[o] ) at dips between -50 & 80[o] .
The drill hole collars were located by handheld GPS. Down hole surveys were conducted post drilling using a down-hole gyro system in five of the drill holes completed. No down-hole surveys were conducted in the remaining holes.
RC drilling was used to obtain generally 1m and 2m samples from which 3kg was pulverized to
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
==> picture [64 x 32] intentionally omitted <==
produce a charge for geochemical analysis.
Diamond core was NQ2 size for diamond coring and tails off RC pre-collars. Half core was collected and sampled generally on 1m intervals or smaller intervals in specific cases where clear lithological boundaries or structures were present.
The preparation of both RC and core samples followed industry practice. This involves oven drying, coarse crushing (core-only), pulverization of total sample using LM2 mills until 95% passes 150 micron.
Field QA-QC involved oversight of collection of riffle split sampling of single metre RC samples to approximately 3kg bags by site geologist and review of core-cutting and collection of 1m samples at core yard. The sample sizes are considered appropriate to the grain size of the material being sampled and assayed.
Drilling Techniques
Diamond drilling accounts for the majority of the drilling through mineralised zones completed to date.
RC Drilling was completed using a 140mm face sampling hammer. Depths ranged from 83m to 120m within the main mineralisation corridor.
Diamond drilling comprised NQ2 core and NQ2 Core ‘tails’. DDH holes ranged from 90-170m. RC Pre-collar depths ranged from 30 to 110m. DC tails ranged in depth form 60 to 150m on these pre-collars.
Classification Criteria
Drill holes are on an approximate 100m x 50m grid spacing, which covers the majority of the main mineralised zone. The drill spacing is adequate for the geological and grade continuity and is appropriate for Mineral Resource estimation.
Samples were composited to1 metre lengths in any drill hole intercepts where 2m sampling was included in the resource modelling.
Sample Analysis
All assays were conducted at an accredited assay laboratory, Andes Analytical Assay Limitada. The analytical technique used for base metals was a mixed acid digest with an ICP_AES finish. Any samples returning greater than 10,000ppm Cu were re-assayed with an Atomic Absorption (AAS) finish. Gold was assayed using an aqua-regia and AAS finish and subsequent high grade material using a 30g charge fire assay technique.
Laboratory QA/QC samples included the use of blanks, duplicates, standards (certified reference materials) as part of in-house procedures. The Standard, Repeat and Duplicate assays for the drilling are within acceptable limits of accuracy for this style of
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
==> picture [64 x 32] intentionally omitted <==
deposit.
Estimation Methodology
The resource estimation for grade was estimated using Inverse distance to the power of 2. The software package for the grade estimation and geological interpretation was Surpac. Copper, Gold, Silver and Density were estimated. Estimation for each element was conducted using the same parameters and were estimated using two passes. For the first pass a search radius of 100 metres along strike/plunge with an anisotropy used for the search ellipsoid with a ratio of 2:1 for major to semi-major direction (i.e. down dip direction the distance is 50 m) and 5 to 1 for major to minor direction (i.e. 20m across strike/plunge). For the second pass a 200m radius was used also using the same anisotropy ratios for both the major to semi- major and major to minor directions. Estimation of grade was within interpreted hard grade boundaries based on a nominal 0.3 Cu % with a minimum of 2m down hole. Internal dilution was domained separately when mineralised grade was less than 0.3% Cu for sections greater than 2m in width and estimated separately.
Blanco Y Negro is a maiden resource. Mining by local artisanal miners has been conducted at surface. No historical records were available to reconcile against the current model.
The resource was modelled using a 20 mN by 5 mE by 5 mZ (grid) with sub celling down to 5 mN by 1.25 mE and 1.25 mZ. Each ore domain has been flagged, coded and modelled separately. The Z direction selected at 5 metres to reflect the possible selected mining bench height.
Ore grade boundaries were defined within the Blanco Y Negro vein/shear.
No top cuts were applied for any of the elements estimated. Coefficients of variation for the estimated elements were low. Block model volume validation was validated against solid wireframes for each ore domain. Block model validation for grade was conducted visually by section northings.
Cut-off Grades
The nominal 0.3 % Cu cut-off grade used for the mineralized interpretation was chosen as this appears to reflect the natural background grade cut-off.
Mining and Metallurgical Factors
The only assumption made regarding to possible mining practices is the setting of the model in the Z direction to 5 metres. The most likely bench height for open pit mining (+/- 1m) assuming hydraulic equipment is used. No account has been taken for mining dilution along or across strike.
Surface material has been previously extracted from the Blanco Y Negro concession by artisanal miners and processed at a government-run copper SX-EW plant approximately 30km
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Helix Resources Limited Gold, Copper, Iron Ore in Australia and Chile
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by road from the mining concession. It is assumed that the material in the resource has similar characteristics to the material previously mined.
Metallurgical testing will be undertaken part of any future advancement of the project within a Scoping study or similar study.
Competent Persons Statement for the Blanco Y Negro Resource.
The information in this report that relates to Exploration Results is based on information compiled by Mick Wilson and is a full-time employee of Helix Resources Limited. Mr Wilson is a member the Australasian Institute of Mining and Metallurgy. Mr Wilson has sufficient experience of relevance to the style of mineralisation and the types of deposits under consideration, and to the activities undertaken, the qualify as Competent Persons as defined in the 2012 Addition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Wilson consents to the inclusion in this report of the matters based on their information in the form and context in which they appear. Mr Wilson has 2,349,700 shares in Helix Resources.
The information in this report that relates to Mineral Resource Estimation is based on information compiled by Mr Byron Dumpleton a Consultant Resource Geologist from his company BKD Resources Pty Ltd. Mr Dumpleton is a member of the Australian Institute of Geoscientist. Mr Dumpleton has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Mineral Exploration Results, Mineral Resources and Ore Reserves” (JORC Code). Mr Dumpleton consents to the inclusion in this report of the matters based on their information in the form and context in which they appear.
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Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
Email: [email protected]
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Annexure C - HLX announcement: “High Grade Copper Gold at Blanco Y Negro Chile” dated 10 September 2014
ASX Announcement
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10 September 2014
High Grade Copper/Gold at Blanco Y Negro - Chile
-
Assay results include 30m @ 1.4% Cu + 0.3g/t Au from 67m incl. 4m @ 5.7% Cu + 0.9g/t Au
-
Drilling Program highlights potential for a supergene enrichment zone.
-
New untested sub-cropping gossanous zone identified 280m north of current resource.
Helix Resources Limited is pleased to announce results from the recent 8 hole Reverse Circulation (RC) drilling program at Blanco y Negro – Region IV, Chile.
High grade copper and gold assays were returned (refer Table 1), with hole ARBN14-003 returning a significant high-grade intercept of 30m @ 1.4% Cu + 0.3g/t Au from 67m, incl. 4m @ 5.7% Cu and 0.9g/t Au . The result from this hole confirms the presence of a supergene chalcocite enrichment zone along strike in the system.
Table 1: Significant Copper/Gold intercepts from recent drilling program.
| Hole ID | From(m) | AssayResult |
|---|---|---|
| ARBN14-002 | 50m | 24m @ 0.6% Cu + 0.2g/t Au incl.10m @ 1.0% Cu + 0.3g/t Au |
| ARBN14-003 | 67m | 30m @ 1.4% Cu + 0.3g/t Au incl. 4m @ 5.7% Cu + 0.9g/t Au |
| ARBN14-007 | 20m | 40m @ 0.8% Cu + 0.2g/t Au incl.11m @ 1.7% Cu + 0.5g/t Au |
| ARBN14-008 | 28m | 18m @ 0.7% Cu + 0.4g/t Au incl.5m @ 1.0% Cu + 1.0g/t Au |
Refer to table 2 for full drill hole details.
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Figure 1: Blanco y Negro Drill collar positions on topography (significant program results – Black, previous results – Blue), mineralisation remains open.
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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The 686m RC program was completed during August. The best results were returned from a section 70m NW of the original DDHU-001 (20m@ 2%Cu and 1.1g.t Au) where mineralisation was intersected in both holes over significant widths (refer figure 2). This drilling has confirmed the presence of a supergene enrichment zone within the main shear. The chalcocite-rich zone, within the broader intercept, returned significant copper grades and associated gold (4m @ 5.7%Cu + 0.9g/t Au) .
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W E
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Figure 2: Cross-section showing mineralisation in holes ARBN14-002 and ARBN14-003
The high-grades intersected to date remain open down-dip and to the north-west, providing immediate future drilling targets.
Further field reconnaissance undertaken during the program has identified a new target 280m north of the current resource. This target, untested by drilling, has an associated magnetic low with sub-cropping gossanous material present at surface. This target position is in a similar magnetic setting to where the best grades have been intersected to date in the main zone (refer Figure 3).
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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Figure 3: Ground Magnetics over Blanco y Negro Mining Concession, showing location of new target zone
Exploration drilling to the south of the current resource intersected wide zones of anomalous copper and gold. Further work is required in this area.
Table 2: Drill hole details and assay results.
| Hole ID | Easting | Northing | RL | Dip | Azimuth | Depth | Results |
|---|---|---|---|---|---|---|---|
| ARBN14-001 | 295069 | 6603679 | 478 | -60 | 060 | 144.0 | Not sampled |
| ARBN14-002 | 294944 | 6603776 | 450 | -60 | 060 | 77.0 | From 50m – 24m @ 0.6% Cu incl.10m @ 1.0% Cu + 0.3g/t Au |
| ARBN14-003 | 294943 | 6603778 | 450 | -75 | 007 | 105.0 | From 56m – 45m @ 1.1% Cu + 0.2g/t Au, incl.–30m @ 1.4% Cu from 67m, incl. 4m@ 5.7% Cu + 0.9g/t Au |
| ARBN14-004 | 295032 | 6603536 | 478 | -80 | 070 | 50.0 | From 21m – 20m @ 0.3%Cu + 0.2g/t Au incl. 4m @0.7% Cu + 0.8g/t Au |
| ARBN14-005 | 295010 | 6603700 | 469 | -80 | 338 | 105.0 | From 56m – 6m @ 0.3%Cu+0.1 g/t Au and From 76m 20m @ 0.1%Cu + 0.1g/t Au |
| ARBN14-006 | 295047 | 6603720 | 478 | -60 | 030 | 80.0 | From 39m – 4m @ 0.3%Cu + 0.3g/t Au |
| ARBN14-007 | 294989 | 6603755 | 461 | -60 | 060 | 75.0 | From 20m – 40m @ 0.8% Cu + 0.2g/t Au incl.11m @ 1.7%Cu +0.5g/t Au |
| ARBN14-008 | 294941 | 6603835 | 445 | -60 | 060 | 50.0 | From 28m – 18m @ 0.7% Cu + 0.3g/t Au incl.5m @ 1.0% Cu + 1g/t Au |
Assays reported from 1m split samples at a 0.1%Cu Cut-off, with max 2m internal dilution.
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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Competent Persons Statement
The information in this announcement that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr M Wilson who is a full time employee of Helix Resources Limited and a Member of The Australasian Institute of Mining and Metallurgy. Mr M Wilson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr M Wilson consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Details of the assumptions underlying any Resource estimations are contained in previous ASX releases or at www.helix.net.au
- ENDS -
For further information: Mick Wilson Pasquale Rombola Managing Director Chairman [email protected] [email protected] Ph: +61 8 9321 2644 Ph: +61 413 239 630
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia Suite 7 / 29 Ord Street, West Perth WA 6005
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
JORC Code – Table 1
Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | Nature and quality of sampling (eg cut channels, random chips, or | |
| techniques | specific specialised industry standard measurement tools appropriate | The Blanco y Negro drilling used a commercial contractor for Reverse |
| to the minerals under investigation, such as down hole gamma | Circulation (RC) drilling. A total of 8 holes were drilled for 686m (refer | |
| sondes, or handheld XRF instruments, etc). These examples should | Table 2 in body of announcement). Holes were generally orientated to | |
| not be taken as limiting the broad meaning of sampling. | the Grid East (060o), some holes were drilled at different orientations | |
| Include reference to measures taken to ensure sample representivity | to utilize the limited drill pads available and were drilled at dips | |
| and the appropriate calibration of any measurement tools or systems | between -60 & 80o. | |
| used. | The drill hole locations were located by handheld GPS. No down hole | |
| Aspects of the determination of mineralisation that are Material to the | surveys were conducted during drilling, however it is expected holes | |
| Public Report. | returning economic grades will be surveyed using a down-hole gyro | |
| In cases where ‘industry standard’ work has been done this would be | system. | |
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | RC drilling was used to obtain 1m samples over zones of interest | |
| m samples from which 3 kg was pulverised to produce a 30 g charge | from which 3kg was sent to a commercial laboratory, pulverized to | |
| for fire assay’). In other cases more explanation may be required, | produce a charge with base metals and gold assayed. | |
| such as where there is coarse gold that has inherent sampling | ||
| problems. Unusual commodities or mineralisation types (eg | ||
| submarine nodules) may warrant disclosure of detailed information. | ||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, rotary air | RC Drilling was the method chosen for all holes drilled. A 140mm |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | face sampling hammer was used. Depths ranged from 50m to 140m. |
| or standard tube, depth of diamond tails, face-sampling bit or other | ||
| _type, whether core is oriented and if so, by what method, etc). _ | ||
| Drill sample | Method of recording and assessing core and chip sample recoveries | RC sample weight and recoveries are recorded on the geological logs |
| recovery | and results assessed. | with results compared to the geological logs. |
| Measures taken to maximise sample recovery and ensure | RC samples were checked by the geologist for volume, moisture | |
| representative nature of the samples. | content, possible contamination and recoveries. Any issues are | |
| Whether a relationship exists between sample recovery and grade | discussed with the drilling contractor. | |
| 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 | Core holes were geologically logged as part of the logging and |
| geotechnically logged to a level of detail to support appropriate | sampling process. All RC chip samples have a representative grab | |
| Mineral Resource estimation, mining studies and metallurgical | sample placed in 1m intervals in chip trays and geologically logged. | |
| studies. | Logging of both RC and Core samples recorded lithology, alteration, | |
| Whether logging is qualitative or quantitative in nature. Core (or | mineralisation, degree of oxidation, fabric and colour. All RC 1m | |
| _costean, channel, etc) photography. _ | intervals are stored inplastic chiptrays,labeled with interval and hole |
1
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| The total length and percentage of the relevant intersections logged. | number. | |
| All holes were logged in full. | ||
| Sub-sampling | If core, whether cut or sawn and whether quarter, half or all core |
The preparation of RC and core samples follows industry practice. |
| techniques | taken. | This involves oven drying, coarse crushing (core-only), pulverization |
| and sample | If non-core, whether riffled, tube sampled, rotary split, etc and | of total sample using LM5 mills until 85% passes 75 micron. |
| preparation | whether sampled wet or dry. | Field QA_QC involved field duplicates of RC samples to test |
| For all sample types, the nature, quality and appropriateness of the | repeatability. | |
| sample preparation technique. | The sample sizes are considered appropriate to the grain size of the | |
| Quality control procedures adopted for all sub-sampling stages to | material being sampled. Repeatability of higher grade material is | |
| maximise representivity of samples. | good. | |
| Measures taken to ensure that the sampling is representative of the in | ||
| situ material collected, including for instance results for field | ||
| duplicate/second-half sampling. | ||
| Whether sample sizes are appropriate to the grain size of the material | ||
| being sampled. | ||
| Quality of | The nature, quality and appropriateness of the assaying and | All assays were conducted at accredited assay laboratory. The |
| assay data | laboratory procedures used and whether the technique is considered | analytical technique used for copper was a mixed acid digest with a |
| and | partial or total. | ICP-AAS detection and a fire assay from a 30g charge with an |
| laboratory | For geophysical tools, spectrometers, handheld XRF instruments, etc, | ICP_OES finish for gold |
| tests | the parameters used in determining the analysis including instrument | Laboratory QA/QC samples were involving the use of blanks, |
| make and model, reading times, calibrations factors applied and their | duplicates, standards (certified reference materials), replicates as part | |
| derivation, etc. | of in-house procedures. Standard, Repeat and duplicate assays for | |
| Nature of quality control procedures adopted (eg standards, blanks, | drilling and are within acceptable limits of accuracy for this style of | |
| duplicates, external laboratory checks) and whether acceptable levels | deposit. |
|
| of accuracy (ie lack of bias) andprecision have been established. | ||
| Verification of | The verification of significant intersections by either independent or |
Significant intersections have been verified by the Exploration |
| sampling and | alternative company personnel. | Manager and Directors. |
| assaying | The use of twinned holes. | Two holes were twinned holes to assess zones of poor recovery from |
| Documentation of primary data, data entry procedures, data | the previous drilling program. Results confirmed mineralisation with | |
| verification, data storage (physical and electronic) protocols. | grade confirmation/improvement of both copper and gold | |
| Discuss any adjustment to assay data. | Geological data was collected using handwritten log sheets which | |
| detailed geology (weathering, structure, alteration, mineralisation), | ||
| sampling quality and intervals, sample numbers, QA/QC and survey | ||
| data. This data, together with the assay data received from the | ||
| laboratory and subsequent survey data were entered into Access | ||
| databases and verified. | ||
| Location of | Accuracy and quality of surveys used to locate drill holes (collar and | The drill collar positions were picked-up using GPS. |
| down-hole surveys), trenches, mine workings and other locations |
2
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| data points | used in Mineral Resource estimation. | Grid system is WGS84 Zone 19S. |
| Specification of the grid system used. | Surface RL data collected using GPS. Topography around the drilled | |
| Quality and adequacy of topographic control. | area is a hill grading from Grid east to a valley grid west of the drilled | |
| area. A topographical wireframe (DTM) has been constructed using | ||
| the data provided by an external geophysical contractor who | ||
| undertook a detailed ground magnetic survey over the project area in | ||
| 2Q13 - 50m line spacing with continuous readings. | ||
| Data spacing | Data spacing for reporting of Exploration Results. | Drill holes for ByN were targeting various geological, structural and |
| and | Whether the data spacing and distribution is sufficient to establish the | geochemical targets. |
| distribution | degree of geological and grade continuity appropriate for the Mineral | When combined with the drilling to date, the drill spacing is adequate |
| Resource and Ore Reserve estimation procedure(s) and | for the geological and grade continuity and is appropriate for Mineral | |
| classifications applied. | Resource and Ore Reserve estimation. | |
| Whether sample compositing has been applied. | ||
| Orientation of | Whether the orientation of sampling achieves unbiased sampling of | Inclined RC drilling has been completed within the mineralised zones |
| data in | possible structures and the extent to which this is known, considering | with good correlation observed between data sets |
| relation to | the deposit type. | No orientation based sampling bias has been identified in the data to |
| geological | If the relationship between the drilling orientation and the orientation | date. |
| structure | of key mineralised structures is considered to have introduced a | |
| sampling bias, this should be assessed and reported if material. | ||
| Sample | The measures taken to ensure sample security. | Chain of Custody is managed by the Company. RC Samples were |
| security | collected onsite generally in bags containing 5-10 samples. The bags | |
| are securely tied and freighted directly to the laboratory in secure | ||
| cages with appropriate documentation listing sample numbers and | ||
| analytical methods requested. | ||
| Audits or | The results of any audits or reviews of sampling techniques and data. | No additional QA/QC has been conducted for the 2014 drilling. |
| reviews |
3
Annexure D – HLX announcement: “Resource Upgrade at Blanco Y Negro Deposit - Chile” dated 13 August 2015
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ASX Announcement
13 August 2015
Resource Upgrade at Blanco Y Negro Deposit - Chile
- New Indicated and Inferred Resource for Blanco y Negro (ByN) Deposit
Indicated: 0.8Mt @ 1.5% Cu, 0.5 g/t Au for 12kt Cu and 12koz Au*
Inferred: 0.7Mt@ 1.3% Cu, 0.6g/t Au for 8kt Cu and 12koz Au*
Total Resource: 1.5Mt @ 1.4% Cu, 0.5g/t Au for 20ktCu and 24koz Au*
-
60% of the resource has now been upgraded to the Indicated category.
-
The ByN deposit sits on a 100% owned mining lease.
-
The Company has received expressions of interest from third parties to purchase the ByN Project
Helix Resources Limited has completed a resource update on the ByN deposit in Region IV, Chile. The update was undertaken following the drilling completed in 2014. The Company has received expressions of interest from third parties to purchase the ByN Project and Helix will keep the market informed of any further developments when they arise.
The new resource estimation has increased the tonnes by approximately 10% and upgraded the classification of the ByN deposit, with 60% of the resource moving into the Indicated JORC category. Infill Reverse Circulation (RC) drilling was undertaken as part of the RC program completed in late 2014 (details Table 2). This additional drilling has improved knowledge of metal distribution and confirmed geological continuity in the main zone.
Drilling at ByN has intersected copper and gold mineralisation with results including 19.5m @ 2% Cu and 1.1 g/t Au and 30m @ 1.4% Cu and 0.3g/t Au. The deposit remains open to the northwest along strike and down dip (Figure 1)
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Figure 1: Approximate position of B y N Deposit on local topography with significant results.
*Resource is reported at a 0.5% Cu cutoff grade and figures are subject to rounding (refer Table 1)
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia 78 Churchill Avenue, Subiaco WA 6008
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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Table 1 : ByN Deposit Material Type August 2015 Mineral Resource Estimation (0.5% Cu cut off)
| Oxide | Oxide | Transition | Transition | Fresh | Fresh | Total | |
|---|---|---|---|---|---|---|---|
| Tonnes & Grade |
Metal | Tonnes & Grade |
Metal | Tonnes & Grade |
Metal | ||
| Indicated | 360kt @ 1.0% Cu,0.2g/t Au |
4,000t Cu 2,500oz Au |
280kt @ 1.8% Cu,0.6g/t Au |
5,000t Cu 5,600oz Au |
140kt @ 2.2% Cu,0.8g/t Au |
3,000t Cu 3,500oz Au |
0.8Mt @ 1.5% Cu, 0.5g/t Au for 12,000t Cu & 12,000oz Au |
| Inferred | 140kt @0.8% Cu,0.6g/t Au |
1,000t Cu 3,000oz Au |
30kt @ 0.7% Cu,0.4g/t Au |
240t Cu 460oz Au |
480kt @ 1.4% Cu,0.6g/t Au |
7,000t Cu 9,000oz Au |
0.7Mt @ 1.3% Cu, 0.6g/t Au for 8,000t Cu & 12,000oz Au |
| Total | 500kt @ 1.0% Cu, 0.3g/t Au |
5,000t Cu 5,000t Au |
310kt @ 1.6% Cu, 0.6g/t Au |
5,200t Cu 6,100oz Au |
620kt @ 1.6 % Cu, 0.6g/t Au |
10,000t Cu 12,500oz Au |
1.5Mt @ 1.4% Cu, 0.5g/t Au for 20,000t Cu & 24,000oz Au |
Note: discrepancies in totals are due to rounding
Geology and Geological Interpretation
ByN is a shear and vein hosted copper and gold system in a geological setting of volcanic, intrusive and associated sediments that are variably sheared and faulted within the regionally significant Los Mantos Fault system in Region IV, Chile. The material included in the resource is dominated by oxide copper mineral species mainly malachite and azurite and in the transition zone Chalcocite and Chalcopyrite.
The confidence of the geology of the resource is suitable for Indicated and Inferred resource status. The continuity of the geology and grade distribution is understood in the main zone, but there is not sufficient drilling information to accurately determine the metal distribution in the peripheral zones.
Mineralisation has been defined by one main central mineralised zone with a single zone of weak mineralisation in the HW and a single zone in the FW and a low grade southern zone. The main zone has been interpreted over six drill sections approximately 50m apart with actual mineralisation between 5 continuous sections. The mineralised central zone has been extrapolated down dip and terminated against a cross-cutting fault.
Mineralisation has been interpreted based on geological boundaries including dilution or a nominal 0.3% Cu cut off with a steep dip of -65° towards grid west.
Sampling and Sub-sampling Techniques
The Blanco Y Negro deposit was delineated using Reverse Circulation (RC) and Diamond Core (DC) drilling. A total of 21 holes were used to delineate and bound the resource estimate. Holes were sited on an approximate between a 50 x 50m and 100 x 50m grid and were generally orientated to the Grid East (060°) at dips between -50 & -80°.
The drill hole collars were located by handheld GPS. Down hole surveys were conducted post drilling using a down-hole gyro system in five of the drill holes completed within the indicated classified zone. No down-hole surveys have been conducted in the remaining holes at this stage.
RC drilling was used to obtain generally 1m and 2m samples from which 3kg was pulverized to produce a charge for geochemical analysis.
Diamond core was NQ2 size for diamond coring and tails off RC pre-collars. Half core was collected and sampled generally on 1m intervals or smaller intervals in specific cases where clear lithological boundaries or structures were present.
The preparation of both RC and core samples followed industry practice.
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia 78 Churchill Avenue, Subiaco WA 6008
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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Drilling Techniques
Diamond drilling accounts for the majority of the drilling through mineralised zones completed in phase 1 and this was followed up by RC drilling including some close to previous holes in phase 2.
RC Drilling was completed using a 140mm face sampling hammer. Depths ranged from 83m to 144m within the main mineralisation corridor.
Diamond drilling comprised NQ2 core and NQ2 Core ‘tails’. DDH holes ranged from 90-170m. RC Precollar depths ranged from 30 to 110m. DC tails ranged in depth form 60 to 150m on these pre-collars.
Classification Criteria
Drill holes are on an approximate 50x 50m and 100m x 50m grid spacing, which covers the majority of the main mineralised zone. The drill spacing is adequate for the geological and grade continuity and is appropriate for Mineral Resource estimation.
Samples were composited to 1 metre lengths in any drill hole intercepts where 2m sampling was included in the resource modelling.
Sample Analysis
All assays were conducted at an accredited assay laboratory. The analytical technique used for base metals was a mixed acid digest with an ICP_AES finish. Any samples returning greater than 10,000ppm Cu were re-assayed with an Atomic Absorption (AAS) finish. Gold was assayed using an aqua-regia and AAS finish and subsequent high grade material using a 30g charge fire assay technique. In phase 2 copper was also determined for soluble and insoluble to assist in classification.
Laboratory QA/QC samples included the use of blanks, duplicates, standards (certified reference materials) as part of in-house procedures. The Standard, Repeat and Duplicate assays for the drilling are within acceptable limits of accuracy for this style of deposit.
Estimation Methodology
The resource estimation for grade was estimated using Inverse distance to the power of 2. The software package for the grade estimation and geological interpretation was Surpac. Copper, Gold, Silver and Density were estimated.
Estimation for each element was conducted using the same parameters and were estimated using two passes (refer to Appendix 1 for details).
Estimation of grade was within interpreted hard grade boundaries based on a nominal 0.3 Cu % with a minimum of 2m down hole. Internal dilution was domained separately when mineralised grade was less than 0.3% Cu for sections greater than 2m in width and estimated separately.
Minor mining by local artisanal miners has been previously conducted at surface. Historical records were reviewed and were able to be reconciled against the current model, (taking into account hand sorting of material).
The resource was modelled using a 20 mN by 5 mE by 5 mZ (grid) with sub celling down to 5 mN by 1.25 mE and 1.25 mZ. Each ore domain has been flagged, coded and modelled separately. The Z direction selected at 5 metres to reflect the possible selected mining bench height.
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia 78 Churchill Avenue, Subiaco WA 6008
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
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Ore grade boundaries were defined within the Blanco Y Negro vein/shear.
No top cuts were applied for any of the elements estimated. Coefficients of variation for the estimated elements were low. Block model volume validation was validated against solid wireframes for each ore domain. Block model validation for grade was conducted visually by section northings.
Cut-off Grades
The nominal 0.3 % Cu cut-off grade used for the mineralized interpretation was chosen as this appears to reflect the natural background grade cut-off.
Mining and Metallurgical Factors
The only assumption made regarding to possible mining practices is the setting of the model in the Z direction to 5 metres. The most likely bench height for open pit mining (+/- 1m) assuming hydraulic equipment is used. Mining dilution along or across strike has been taken into account in the new resource estimate.
Surface material has been previously extracted from the Blanco Y Negro concession by artisanal miners and processed at a government-run copper SX-EW plant approximately 30km by road from the mining concession. It is assumed that the oxide material in the resource has similar characteristics to the material previously mined.
Metallurgical testing would be undertaken as part of any future advancement of the project within a Scoping study or similar study.
Competent Persons Statement
The information in this report that relates to the Mineral Resource Estimation for Blanco y Negro is based on information compiled by Mr Byron Dumpleton a Consultant Resource Geologist from his company BKD Resources Pty Ltd. Mr Dumpleton is a member of the Australian Institute of Geoscientist. Mr Dumpleton has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Mineral Exploration Results, Mineral Resources and Ore Reserves” (JORC Code). Mr Dumpleton consents to the inclusion in this report of the matters based on their information in the form and context in which they appear.
The information in this announcement that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr M Wilson who is a full time employee of Helix Resources Limited and a Member of The Australasian Institute of Mining and Metallurgy. Mr M Wilson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr M Wilson consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Details of the assumptions underlying any Resource estimations are contained in previous ASX releases or at www.helix.net.au
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia 78 Churchill Avenue, Subiaco WA 6008
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
==> picture [193 x 52] intentionally omitted <==
- ENDS -
For further information:
Mick Wilson Managing Director [email protected] Ph: +61 8 9321 2644
Pasquale Rombola Chairman [email protected] Ph: +61 413 239 630
Table 2: Additional Drill hole details and assay results included from 2014 program into resource model.
| Hole ID | Easting | Northing | RL | Dip | Azimuth | Depth | Results |
|---|---|---|---|---|---|---|---|
| ARBN14-001 | 295069 | 6603679 | 478 | -60 | 060 | 144.0 | No significant result |
| ARBN14-002 | 294944 | 6603776 | 450 | -60 | 060 | 77.0 | From 50m – 24m @ 0.6% Cu incl.10m @ 1.0% Cu + 0.3g/t Au |
| ARBN14-003 | 294943 | 6603778 | 450 | -75 | 007 | 105.0 | From 56m – 45m @ 1.1% Cu + 0.2g/t Au, incl.–30m @ 1.4% Cu from 67m, incl. 4m @ 5.7% Cu + 0.9g/t Au |
| ARBN14-004 | 295032 | 6603536 | 478 | -80 | 070 | 50.0 | From 21m – 20m @ 0.3%Cu + 0.2g/t Au incl. 4m @ 0.7% Cu + 0.8g/t Au |
| ARBN14-005 | 295010 | 6603700 | 469 | -80 | 338 | 105.0 | From 56m – 6m @ 0.3%Cu+0.1 g/t Au and From 76m 20m @ 0.1%Cu + 0.1g/t Au |
| ARBN14-006 | 295047 | 6603720 | 478 | -60 | 030 | 80.0 | From 39m – 4m @ 0.3%Cu + 0.3g/t Au |
| ARBN14-007 | 294989 | 6603755 | 461 | -60 | 060 | 75.0 | From 20m – 40m @ 0.8% Cu + 0.2g/t Au incl.11m @ 1.7%Cu +0.5g/t Au |
| ARBN14-008 | 294941 | 6603835 | 445 | -60 | 060 | 50.0 | From 28m – 18m @ 0.7% Cu + 0.3g/t Au incl.5m @ 1.0% Cu + 1g/t Au |
Assays reported from 1m split samples at a 0.1%Cu Cut-off, with max 2m internal dilution.
Helix Resources Limited A.C.N. 009 138 738 Incorporated in Western Australia 78 Churchill Avenue, Subiaco WA 6008
P: +61 8 9321 2644 F: +61 8 9321 3909 www.helix.net.au
Email: [email protected]
APPENDIX 1
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | Nature and quality of sampling (eg cut channels, random chips, or | The B y N deposit was delineated using Reverse Circulation (RC) and |
| techniques | specific specialised industry standard measurement tools appropriate | Diamond Core (DC) drilling. A total of 21 holes were used to delineate |
| to the minerals under investigation, such as down hole gamma | and bound the resource estimate. Holes were sited on an | |
| sondes, or handheld XRF instruments, etc). These examples should | approximate 50m X 50m and 100 x 50m grid and were generally | |
| not be taken as limiting the broad meaning of sampling. | orientated to the Grid East (060o) at dips between -50 & 80o. | |
| Include reference to measures taken to ensure sample representivity | The drill hole locations were located by handheld GPS. Down hole | |
| and the appropriate calibration of any measurement tools or systems | surveys were conducted post drilling using a down-hole gyro system | |
| used. | in five of the drill holes completed. No down-hole surveys were | |
| Aspects of the determination of mineralisation that are Material to the | conducted in the remaining holes. | |
| Public Report. | RC drilling was used to obtain generally 1m and 2m samples from | |
| In cases where ‘industry standard’ work has been done this would be | which 3kg was pulverized to produce a charge for geochemical | |
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | analysis. Diamond core was NQ2size for diamond coring and tails off | |
| m samples from which 3 kg was pulverised to produce a 30 g charge | RC pre-collars. Core was split and half-core was collected over 1m | |
| for fire assay’). In other cases more explanation may be required, | intervals within mineralised zones and prepared and assayed using | |
| such as where there is coarse gold that has inherent sampling | the same methods for RC . | |
| problems. Unusual commodities or mineralisation types (eg | ||
| submarine nodules) may warrant disclosure of detailed information. | ||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, rotary air | Diamond drilling accounts for the majority of the drilling through |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | mineralised zones completed in phase 1 with RC drilling used in |
| or standard tube, depth of diamond tails, face-sampling bit or other | phase 2 (2014). | |
| type, whether core is oriented and if so, by what method, etc). | RC Drilling was completed using a 140mm face sampling hammer. | |
| Depths ranged from 83m to 144m within the main mineralisation | ||
| corridor. | ||
| Diamond core drilling comprised NQ2core and NQ2Core ‘tails’. DDH | ||
| holes ranged from 90-170m. RC Pre-collar depths ranged from 30 to | ||
| 110m. DC tails ranged in depth form 60 to 150m on thesepre-collars. | ||
| Drill sample | Method of recording and assessing core and chip sample recoveries | Drill core and RC samples recoveries were recorded on the lithology |
| recovery | and results assessed. | field logs with observations compared to the core and samples |
| Measures taken to maximise sample recovery and ensure | produced. | |
| representative nature of the samples. | RC samples were checked by the geologist for volume, moisture | |
| Whether a relationship exists between sample recovery and grade | content, possible contamination and recoveries. Core was |
|
| and whether sample bias may have occurred due topreferential | reconstructed in continuous lengths where applicable and depths |
6
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| loss/gain of fine/coarse material. | marker annotated and checked against core blocks. Any issues are | |
| discussed with the drillingcontractor. | ||
| Logging | Whether core and chip samples have been geologically and | Core holes were geologically logged as part of the logging and |
| geotechnically logged to a level of detail to support appropriate | sampling process. All RC chip samples have a representative grab | |
| Mineral Resource estimation, mining studies and metallurgical | sample placed in 1m intervals in chip trays and geologically logged. | |
| studies. | Logging of both RC and Core samples recorded lithology, alteration, | |
| Whether logging is qualitative or quantitative in nature. Core (or | mineralisation, degree of oxidation, fabric and colour. Core was | |
| costean, channel, etc) photography. | photographed in both dry and wet form. All RC 1m intervals are | |
| The total length and percentage of the relevant intersections logged. | stored in plastic chip trays, labeled with interval and hole number. Drill | |
| Core is labeled, stacked and palletized in timber core trays at the | ||
| Company’s core yard in Ovalle | ||
| All holes (RC and core)wereloggedin full. | ||
| Sub- | If core, whether cut or sawn and whether quarter, half or all core | Half core was collected and samples generally on on 1m intervals or |
| sampling | taken. | smaller intervals in specific cases where clear lithological boundaries |
| techniques | If non-core, whether riffled, tube sampled, rotary split, etc and | or structures were present. |
| and sample | whether sampled wet or dry. | The preparation of both RC and core samples followed industry |
| preparation | For all sample types, the nature, quality and appropriateness of the | practice. This involves oven drying, coarse crushing (core-only), |
| sample preparation technique. | pulverization of total sample using LM2 mills until 95% passes 150 | |
| Quality control procedures adopted for all sub-sampling stages to | micron. | |
| maximise representivity of samples. | Field QA-QC involved oversight of collection of riffle split sampling of | |
| Measures taken to ensure that the sampling is representative of the in | single metre RC samples to approximately 3kg bags by site geologist |
|
| situ material collected, including for instance results for field | and review of core-cutting and collection of 1m samples at core yard. | |
| duplicate/second-half sampling. | The sample sizes are considered appropriate to the grain size of the | |
| Whether sample sizes are appropriate to the grain size of the material | material being sampled and assayed. |
|
| being sampled. | ||
| Quality of | The nature, quality and appropriateness of the assaying and | All assays were conducted at an accredited assay laboratory Andes |
| assay data | laboratory procedures used and whether the technique is considered | Analytical Assay Limitada. The analytical technique used for |
| and | partial or total. | basemetals was a mixed acid digest with an ICP_AES finish. Any |
| laboratory | For geophysical tools, spectrometers, handheld XRF instruments, etc, | samples returning greater than 10,000ppm Cu were re-assayed with |
| tests | the parameters used in determining the analysis including instrument | an Atomic Absorption (AAS) finish. Gold was assayed using an aqua |
| make and model, reading times, calibrations factors applied and their | regia and aas finish and subsequent high grade material using a 30g | |
| derivation, etc. | charge fire assay technique. | |
| Nature of quality control procedures adopted (eg standards, blanks, | This is considered appropriate for the material | |
| duplicates, external laboratory checks) and whether acceptable levels | Laboratory QA/QC samples included the use of blanks, duplicates, |
|
| of accuracy (ie lack of bias) and precision have been established. | standards (certified reference materials) as part of in-house | |
| procedures. Standard, Repeat and duplicate assays for drilling and | ||
| are within acceptable limits of accuracyfor this style of deposit. | ||
| Verification | The verification of significant intersections by either independent or | Significant intersections have been verified by the field geologist(s), |
| of sampling | alternative company personnel. | Exploration Manager and ManagingDirector. |
7
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| and | The use of twinned holes. | Two twinned holes were collected in phase 2 drilling to compare RC |
| assaying | Documentation of primary data, data entry procedures, data | with DDH results. The holes geological and assay variability was |
| verification, data storage (physical and electronic) protocols. | within acceptable ranges. | |
| Discuss any adjustment to assay data. | Geological data was collected using handwritten log sheets which | |
| detailed geology (weathering, structure, alteration, mineralisation), | ||
| sampling quality and intervals, sample numbers and survey data. This | ||
| data, together with the assay data received from the laboratory and | ||
| subsequent survey data were entered into databases and verified | ||
| from the original laboratory data and field data. | ||
| No adjustmentswere conducted | ||
| Location of | Accuracy and quality of surveys used to locate drill holes (collar and | The drill collar positions were picked-up using GPS. A Gyroscopic |
| data points | down-hole surveys), trenches, mine workings and other locations | downhole tools was used to collect survey information subsequent to |
| used in Mineral Resource estimation. | the completion of drilling where possible. | |
| Specification of the grid system used. | Grid system is WGS84 Zone 19S. Local grid has also been used for | |
| Quality and adequacy of topographic control. | estimation purposes and geological interpretation and drill planning. | |
| The local grid is design so that sections are approximately | ||
| perpendicular to the average strike of the resource. The grid has a | ||
| rotation of 60 degrees to the west. | ||
| Surface RL data collected using GPS. Topography around the | ||
| resource is a hill in grid east to a valley grid west of the resource | ||
| area. A topographical wireframe (DTM) has been constructed using | ||
| the data provided by an external geophysical contractor who | ||
| undertook a detailed ground magnetic survey over the project area in | ||
| 2Q13 The survey provided - 50m line spacing with continuous | ||
| readings. | ||
| Data spacing | Data spacing for reporting of Exploration Results. |
Drill holes for ByN is on an approximate 50m x 50m and 100m x 50m |
| and | Whether the data spacing and distribution is sufficient to establish the | grid spacing, which covers the majority of the main mineralised zone. |
| distribution | degree of geological and grade continuity appropriate for the Mineral | The drill spacing is adequate for the geological and grade continuity |
| Resource and Ore Reserve estimation procedure(s) and | and is appropriate for Mineral Resource and Ore Reserve estimation. | |
| classifications applied. | Samples were composited to1 metre lengths in any drill hole | |
| Whether sample compositing has been applied. | intercepts where 2m sampling was included in the resource | |
| modelling. | ||
| Orientation | Whether the orientation of sampling achieves unbiased sampling of | Inclined RC and DDH drilling has been completed within the |
| of data in | possible structures and the extent to which this is known, considering | mineralised zones with good correlation observed between data sets |
| relation to | the deposit type. | No orientation based sampling bias has been identified in the data to |
| geological | If the relationship between the drilling orientation and the orientation | date. |
| structure | of key mineralised structures is considered to have introduced a | |
| sampling bias, this should be assessed and reported if material. | ||
| Sample | _The measures taken to ensure sample security. _ | Chain of Custodyis managed bythe Company. RC Samples were |
8
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| security | collected onsite generally in polyweave bags containing 5-10 | |
| samples. The bags are securely tied and freighted directly to the | ||
| laboratory in secure cages with appropriate documentation listing | ||
| sample numbers and analytical methods requested. | ||
| Diamond core was transported by Helix staff, logged and cut at the | ||
| Company secure core yard in the nearby town of Ovalle, with | ||
| samples bagged, batched and freighted directly to the laboratory with | ||
| appropriate documentation listing sample numbers and analytical | ||
| methods requested. | ||
| Audits or | The results of any audits or reviews of sampling techniques and data. | No additional QA/QC has been conducted for the Resource model |
| reviews | drilling. Umpire lab re-assaying of selected samples is planned as | |
| part of future development studies. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | Type, reference name/number, location and ownership including | The Blanco y Negro 1/20 mining concession is 100% owned by Helix |
| tenement | agreements or material issues with third parties such as joint | Resources Chile Limitada, a 100% owned subsidiary of Helix |
| and land | ventures, partnerships, overriding royalties, native title interests, | Resource limited. |
| tenure status | historical sites, wilderness or national park and environmental | Title Blanco y Negro 1/20 of the concession is in good standing at the |
| settings. | time of reporting and is a mining lease. | |
| 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. | ||
| Exploration | Acknowledgment and appraisal of exploration by other parties. | No previous exploration has been conducted on the property prior to |
| done by | Helix involvement, however a small parcel of oxide material was | |
| other parties | mined by artisanal miners and toll-treated at the nearby Government | |
| owned SX-EWplant | ||
| Geology | Deposit type, geological setting and style of mineralisation. | Blanco y Negro is a shear and vein hosted copper and gold system in |
| a geological setting of volcanics, intrusives and associated | ||
| sediments, variably sheared and faulted within the regionally | ||
| significant Los Mantos Fault system. The material included in the | ||
| resource is dominated byoxide copper mineral species. | ||
| Drill hole | A summary of all information material to the understanding of the | Refer to ASX announcement on 10 September 2014 and drill collar |
| Information | exploration results including a tabulation of the following information | table in main announcement |
| 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 |
9
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| metres) of the drill hole collar | ||
o dip and azimuth of the hole |
||
o down hole length and interception depth |
||
o hole length. |
||
| If the exclusion of this information is justified on the basis that the | ||
| information is not Material and this exclusion does not detract from | ||
| the understanding of the report, the Competent Person should clearly | ||
| explain why this is the case. | ||
| Data | In reporting Exploration Results, weighting averaging techniques, | Refer to section 3 |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | |
| methods | grades) and cut-off grades are usually Material and should be stated. | |
| Where aggregate intercepts incorporate short lengths of high grade | ||
| results and longer lengths of low grade results, the procedure used | ||
| for such aggregation should be stated and some typical examples of | ||
| such aggregations should be shown in detail. | ||
| The assumptions used for any reporting of metal equivalent values | ||
| should be clearly stated. | ||
| Relationship | These relationships are particularly important in the reporting of | Drilling was generally aimed at intersecting mineralisation as close to |
| between | Exploration Results. | perpendicular as possible, based on the ability to position a drill rig to |
| mineralisatio | If the geometry of the mineralisation with respect to the drill hole | do so. Holes used to estimate the resource are within this criteria |
| n widths and | angle is known, its nature should be reported. |
|
| intercept | If it is not known and only the down hole lengths are reported, there | |
| lengths | should be a clear statement to this effect (eg ‘down hole length, true | |
| _width not known’). _ | ||
| Diagrams | Appropriate maps and sections (with scales) and tabulations of | Refer to previous releases |
| 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. | ||
| Other | Other exploration data, if meaningful and material, should be reported | No additional data is available at the time of reporting |
| substantive | including (but not limited to): geological observations; geophysical | |
| exploration | survey results; geochemical survey results; bulk samples – size and | |
| data | method of treatment; metallurgical test results; bulk density, | |
| groundwater, geotechnical and rock characteristics; potential | ||
| deleterious or contaminating substances. | ||
| Further work | The nature and scale of planned further work (eg tests for lateral |
Refer to main body of this release |
| 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. |
10
Section 3 Estimation and Reporting of Mineral Resources
(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | Measures taken to ensure that data has not been corrupted by, for | Data used in the resource estimation was derived from the projects |
| integrity | example, transcription or keying errors, between its initial collection | drilling database held in Chile and replicated on the company |
| and its use for Mineral Resource estimation purposes. | database in Australia. | |
| Data validation procedures used. | Validation has occurred through cross-checking of geology to assays, | |
| assay data compared to original files received from the laboratory by | ||
| the field staff in Chile, and then by Helix staff in Australia prior to | ||
| resource estimation. Hardcopies of both geological logs and certified | ||
| copies of laboratory assays are held in the Chile office. Original | ||
| laboratorydigital files are also available for cross reference. | ||
| Site visits | Comment on any site visits undertaken by the Competent Person and | Mr. Mick Wilson, acting as a Competent Person for the geology and |
| the outcome of those visits. | exploration portions of the Table was involved with the project from its | |
| If no site visits have been undertaken indicate why this is the case. | purchase in mid-2012 and has made numerous site visits during this | |
| time, including during the drilling program. He was part of the team | ||
| that developed the Geological Interpretation for the Blanco Y Negro | ||
| Deposit. | ||
| Geological | Confidence in (or conversely, the uncertainty of ) the geological | The geological interpretation is considered to be reasonable for this |
| interpretatio | interpretation of the mineral deposit. | style of deposit. The confidence of the resource figures is suitable for |
| n | Nature of the data used and of any assumptions made. | Indicated and Inferred. |
| The effect, if any, of alternative interpretations on Mineral Resource | Mineralisation has been defined by one main central mineralised | |
| estimation. | zone with a single zone of weak mineralisation in the HW and a single | |
| The use of geology in guiding and controlling Mineral Resource | zone in the FW, a southern pod was also interpreted. The FW zone | |
| estimation. | has been based around a single intercept from hole ARBN13-002. | |
| The factors affecting continuity both of grade and geology. | The main zone has been interpreted over six drill sections | |
| approximately 50m apart with actual mineralisation between 5 | ||
| continuous sections. The mineralised central zone has been | ||
| extrapolated down dip and terminated against a cross-cutting fault. | ||
| Mineralisation has been interpreted based on a nominal 0.3% Copper | ||
| cut off or vein material with a steep dip of -65 towards grid west. | ||
| The geological interpretation has been based on geological and | ||
| grade boundaries. | ||
| The factors for grade continuity are subjective with the limited drilling | ||
| information. The continuityof the Geologyis reasonablyunderstood. | ||
| Dimensions | The extent and variability of the Mineral Resource expressed as | The main mineralised zone is approximately 250 metre along strike |
| length (along strike or otherwise), plan width, and depth below | with mineralisation extended to depths from approximately 50 to 350 | |
| surface to the upper and lower limits of the Mineral Resource. | metres. The variable depths is due to the oblique nature of the |
11
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| intersection between the moderately westerly (grid) steep dipping | ||
| mineralised zone against the NW (grid) trending near vertical fault. | ||
| The mineralised(true)width varies from 2 to 25 metres. | ||
| Estimation | The nature and appropriateness of the estimation technique(s) | The resource estimation for grade was estimated using Inverse |
| and | applied and key assumptions, including treatment of extreme grade | distance to the power of 2. The software package for the grade |
| modelling | values, domaining, interpolation parameters and maximum distance | estimation and geological interpretation was Surpac. Copper, Gold, |
| techniques | of extrapolation from data points. If a computer assisted estimation | Silver and Density were estimate. Estimation for each element was |
| method was chosen include a description of computer software and | conducted using the same parameters and were estimated using two | |
| parameters used. | passes. For the first pass a search radius of 105 metres along | |
| The availability of check estimates, previous estimates and/or mine | strike/plunge with an anisotropy used for the search ellipsoid with a | |
| production records and whether the Mineral Resource estimate takes | ratio of 2:1 for major to semi-major direction and 3 to 1 for major to | |
| appropriate account of such data. | minor direction. For the second pass a 210m radius was used also | |
| The assumptions made regarding recovery of by-products. | using the same anisotropy ratios for both the major to semi-major and | |
| Estimation of deleterious elements or other non-grade variables of economic significance (eg sulphur for acid mine drainage |
major to minor directions. Estimation of grade was within interpreted hard grade boundaries based on a nominal 0.3% Copper with a |
|
| characterisation). | minimum of 2m down hole. Internal dilution was domained separately | |
| In the case of block model interpolation, the block size in relation to the average sample spacing and the search employed. |
when mineralised grade was less than 0.3% Copper for sections greater than 2m in width and estimated separately. |
|
| Any assumptions behind modelling of selective mining units. Any assumptions about correlation between variables. Description of how the geological interpretation was used to control the resource estimates. |
Blanco Y Negro is an updated resource. Mining by local artisanal miners has been conducted at surface. Historical records were available and reconcile against the current model, taking into account hand sorting of material. |
|
| Discussion of basis for using or not using grade cutting or capping. The process of validation, the checking process used, the comparison of model data to drill hole data, and use of reconciliation data if available. |
No assumptions have been made for recovery of by-products. No deleterious elements were estimated. The resource was modelled using a 20 mN by 5 mE by 5 mZ (grid) with sub celling down to 5 mN by 1.25 mE and 1.25 mZ. Each ore |
|
| domain has been flagged, coded and modelled separately. | ||
| The Z direction selected at 5 metres to reflect the possible selected | ||
| mining bench height. | ||
| N/A | ||
| Ore grade boundaries were defined within the Blanco Y Negro | ||
| vein/shear. | ||
| No top cuts were applied for any of the elements estimated. | ||
| Coefficient of variation for the estimated elements were low. | ||
| Block model volume validation was validated against ore solid | ||
| wireframes for each ore domain. Block model validation for grade was | ||
| conducted visuallybysection northings. | ||
| Moisture | Whether the tonnages are estimated on a dry basis or with natural | Tonnages are estimated on dry basis. |
| moisture, and the method of determination of the moisture content. |
12
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Cut-off | The basis of the adopted cut-off grade(s) or quality parameters | The nominal 0.3 % Copper cutoff grade used for the mineralized |
| parameters | applied. | interpretation was chosen as this appears to reflect the natural |
| backgroundgrade cutoff. | ||
| Mining | Assumptions made regarding possible mining methods, minimum | Only assumption made regarding to possible mining practices is the |
| factors or | mining dimensions and internal (or, if applicable, external) mining | setting of the model in the Z direction to 5 metres. The most likely |
| assumptions | dilution. It is always necessary as part of the process of determining |
bench height for open pit mining (+/- 1m) assuming hydraulic |
| reasonable prospects for eventual economic extraction to consider | equipment is used. No account has been taken for mining dilution | |
| potential mining methods, but the assumptions made regarding | along or across strike. | |
| mining methods and parameters when estimating Mineral Resources | ||
| may not always be rigorous. Where this is the case, this should be | ||
| reported with an explanation of the basis of the mining assumptions | ||
| made. | ||
| Metallurgical | The basis for assumptions or predictions regarding metallurgical |
Surface material has been previously extracted from the Blanco Y |
| factors or | amenability. It is always necessary as part of the process of | Negro concession by artisanal miners and processed at a |
| assumptions | determining reasonable prospects for eventual economic extraction to |
government-run copper plant approximately 30km by road from the |
| consider potential metallurgical methods, but the assumptions | mining concession. It is assumed that the oxide material in the | |
| regarding metallurgical treatment processes and parameters made | resource has similar characteristics to the material previously mined | |
| when reporting Mineral Resources may not always be rigorous. | Metallurgical testing will be undertaken part of any future | |
| Where this is the case, this should be reported with an explanation of | advancement of the project within a Scoping study or similar. | |
| the basis of the metallurgical assumptions made. | ||
| Environmen- | Assumptions made regarding possible waste and process residue | Desktop studies and background work has commenced on various |
| tal factors or | disposal options. It is always necessary as part of the process of |
aspects regarding average rainfall, ground water, land access and |
| assumptions | determining reasonable prospects for eventual economic extraction to |
potential mining scenarios. More detailed work will form part of any |
| consider the potential environmental impacts of the mining and | future advancement of the project within a Scoping study or mine | |
| processing operation. While at this stage the determination of | permitting framework. | |
| potential environmental impacts, particularly for a greenfields project, | ||
| may not always be well advanced, the status of early consideration of | ||
| these potential environmental impacts should be reported. Where | ||
| these aspects have not been considered this should be reported with | ||
| an explanation of the environmental assumptions made. | ||
| Bulk density | Whether assumed or determined. If assumed, the basis for the | For the Blanco Y Negro resource bulk density values were |
| assumptions. If determined, the method used, whether wet or dry, the | determined for host rock and mineralised shear and vein material |
|
| frequency of the measurements, the nature, size and | from selected that appear to be representative. | |
| representativeness of the samples. | Density measurements were determined on diamond core samples | |
| The bulk density for bulk material must have been measured by | using the 'Archemides Method' (weight in air v's weight in water). | |
| methods that adequately account for void spaces (vugs, porosity, | It was not possible to determine the density of much of the friable | |
| etc), moisture and differences between rock and alteration zones | material, much of which was not recovered in DDHBN003 and | |
| within the deposit. | ARDBN005 | |
| Discuss assumptions for bulk density estimates used in the | Bulk densitywas assigned byweathering/material type interpreted |
13
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| evaluationprocess of the different materials. | fromgeological logging. | |
| Classificatio | The basis for the classification of the Mineral Resources into varying | Classification of the resource is based on drilling density, geological |
| n | confidence categories. | confidence and the position of the shoots within the main shear and |
| Whether appropriate account has been taken of all relevant factors (ie | vein material for each domain. The mineral resource has been |
|
| relative confidence in tonnage/grade estimations, reliability of input | classified into Indicated and Inferred categories based on drill hole | |
| data, confidence in continuity of geology and metal values, quality, | spacing, geological confidence, and grade continuity and estimation | |
| quantity and distribution of the data). | quality. The combination of these factors together guides the coding | |
| Whether the result appropriately reflects the Competent Person’s | of the resource. Indicated material is generally material with average | |
| view of the deposit. | drill spacing of 50 metres along with reasonable geology confidence | |
| and grade continuity. Inferred material is generally material that has | ||
| average drill spacing greater than 50 metres and or the geology or | ||
| grade continuity confidence is low. | ||
| The drill and input data density is comprehensive in its coverage for | ||
| this style of resource for an open pit evaluation to allow reasonable | ||
| confidence for the tonnage and grade distribution to the levels of | ||
| Indicated and Inferred. | ||
| The Mineral Resource estimated appropriately reflects the view of the | ||
| competentperson. | ||
| Audits or | The results of any audits or reviews of Mineral Resource estimates. | No External Audits have been conducted. Historical mining has |
| reviews | occurred by artisanal miners and records of the grade and tonnage of | |
| thismaterialare available. | ||
| Discussion | Where appropriate a statement of the relative accuracy and | The relative accuracy of the Mineral Resource estimate is reflected in |
| of relative | confidence level in the Mineral Resource estimate using an approach | the reporting of the Mineral Resource as per the guidelines of the |
| accuracy/ | or procedure deemed appropriate by the Competent Person. For | 2012 JORC code. |
| confidence | example, the application of statistical or geostatistical procedures to | The statement relates to global estimate of tonnes and grade for an |
| quantify the relative accuracy of the resource within stated confidence | Indicated and Inferred resource. |
|
| limits, or, if such an approach is not deemed appropriate, a qualitative | ||
| discussion of the factors that could affect the relative accuracy and | ||
| confidence of the estimate. | ||
| The statement should specify whether it relates to global or local | ||
| estimates, and, if local, state the relevant tonnages, which should be | ||
| relevant to technical and economic evaluation. Documentation should | ||
| include assumptions made and the procedures used. | ||
| These statements of relative accuracy and confidence of the estimate | ||
| should be compared withproduction data, where available. |
14
Annexure E - HLX announcement: “Status update on Chilean copper assets” dated 22 December 2020
1 2
3 4 5 6 7
ASX Announcement 22 December 2020
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Status Update of Helix’s Chilean Copper Assets
Advanced copper and gold explorer, Helix Resources Limited (ASX:HLX) ( Helix or the Company ) is pleased to provide a status update of its prospective Chilean Copper-Gold Assets.
HIGHLIGHTS
STATUS
Helix retains three projects 100% in Region IV in Chile, including a JORC 2012 compliant copper and gold resource on a granted mining lease and two larger Copper-Gold exploration projects.
– The holding costs of these projects over the past 2 3 years have been predominantly underwritten by Joint Venture partners, as such the projects have represented a free-option for HLX shareholders to participate in a major copper discovery. We note the copper price is testing the highest level for a decade.
BLANCO Y NEGRO DEPOSIT
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An historical mine area within trucking distance of several nearby copper operations with capacity.
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Vein/Shear hosted deposit. Produced low-volume copper as recently as 2014.
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Helix has defined a JORC-2012 Indicated and Inferred Mineral Resource Estimate of 1.5Mt at 1.4% Cu, 0.5g/t Au for 20,000t Cu and 24,000oz Au[(see table 1)] .
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Mineralisation remains open to the northwest, down-dip and down-plunge.
JOSHUA COPPER PORPHYRY PROJECT
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A greenfield porphyry discovery by Helix,
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Diamond drilling at the Joshua Prospect produced results including 400m @ 0.33% CuEq from surface.
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Multiple porphyry phases have been identified in the Joshua Copper system over a 6km x 3km area.
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A new, large-scale porphyry prospect at Joshua West has been identified and is yet to be tested with drilling.
SAMUEL COPPER MANTO/PORPHYRY PROJECT
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Large target area 19km[2] with initial exploration data collected. (Drone Magnetics, IP Survey, Initial Drilling)
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Deep diamond drilling within breccia and manto style copper target areas have so far produced anomalous results which are indicative of copper-gold (+/- molybdenum) mineralisation.
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A priority target has been delineated from the exploration so far, and provides a high potential walkup drill target for drill testing.
Corporate Office 78 Churchill Avenue Subiaco WA 6008 www.helixresources.com.au
T +61 8 9321 2644 F +61 8 9321 3909 E [email protected]
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Figure 1: Location map of Helix’s Chilean projects, near Ovalle City in the Coastal Range of Region IV
BLANCO Y NEGRO DEPOSIT (100% HLX)
Blanco y Negro (ByN) is a shear/vein hosted copper and gold system in a geological setting of volcanic, intrusive and associated sediments that are variably sheared and faulted within the regionally significant Los Mantos Fault system in Region IV, Chile. The material included in the Mineral Resource is dominated by oxide copper mineral species mainly malachite and azurite and in the transition zone chalcocite and chalcopyrite.
The Project consists of approximately 128Ha of exploitation concessions to the northwest of the Samuel Project (Mining Concessions Blanco y Negro 1-20)
Blanco y Negro is hosted in the regionally significant shear system situated 21km NE of Xiana Mining’s Punitaqui operations and 10km SW of Ovalle in Coquimbo Region.
Mineralisation has been defined by one main central mineralised zone with a single zone of weak mineralisation in the HW and a single zone in the FW and a low-grade southern zone. The main zone has been interpreted over six drill sections approximately 50m apart with actual mineralisation between 5 continuous sections.
The existing JORC-2012 Mineral Resource at Blanco y Negro is open to the north-west as well as down-dip and plunge.
Table 1
For full details on Resource, refer ASX announcement 13 August 2015
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Figure 2: 3d Schematic showing significant drill intercepts at the Blanco y Negro Deposit
JOSHUA COPPER/GOLD PORPHYRY PROJECT (100% HLX)
The Joshua Project is targeting Cu/Au porphyry systems in a region of lower Cretaceous volcanics, intruded by younger Palaeocene to Eocene intrusives, an important epoch for Chilean porphyry systems.
The Joshua Project is located 350km north of Santiago in Chile’s coastal porphyry copper belt. The 50 sq.km project area has all-year-round access and is favourably situated at low altitude, and close to infrastructure including ports, rail, roads and possible power and water solutions for any future mining scenarios.
The Joshua porphyry copper system is characterised by a regionally significant alteration anomaly (6.5km by 2km), centred on a zone of surface copper mineralisation, brecciation and silica-tourmaline alteration. The broad alteration response at Joshua is similar to that of the Andacollo Cu-Au porphyry deposit located 45km to the northwest of the Joshua Project and operated by North American mid-cap company, Teck.
Multiple porphyry phases have been identified at the Joshua Project, with less than 20% of the overall system drill tested to date. A priority drill ready target is present at the Joshua West Prospect.
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Figure 3: 3d Schematic showing hydrothermal ASTER alteration draped on topography at Joshua and example of porphyry related alteration and veining in diamond core from Joshua drilling.
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SAMUEL COPPER/GOLD PORPHYRY PROJECT (100% HLX)
The Samuel Project, located 17km south-east of the city of Ovalle and 17km north-east of the Punitaqui mine, is prospective for copper-gold porphyry, manto and breccia style mineralisation.
The Project consists of 3,400Ha of exploration concessions and 572Ha of mining concessions.
Exploration by Helix and funding partners focussed on an area of 4.0km x 2.7km, being a metallogenic strip of upper to mid Cretaceous rocks that are bounded by large NW and NE regional controlling structures.
The dominant geology of the Project area consists of intrusive rocks. A dacitic porphyry intrudes the intrusive rocks and volcanics, generating hydrothermal alteration and stockwork of Cu-quartz veins.
Structurally, the area is located in the interpreted NE extension of the El Culén and Los Mantos Faults within a large NW lineament. Microscopy indicates that there is djurleite (white chalcocite) and chalcopyrite in limonite associated with the weathered stockworking at surface.
Diamond drilling in 2018/19 (12 holes for 4,200m) confirmed the prospectivity of the project with anomalous multi-element assay results and strong alteration across the 19km² target area.
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Figure 4: Samuel Project Imagery: Top left: ASTER hydrothermal alteration draped on aerial image of Samuel Project; Top right: Field geology map; Bottom Left: Analytical signal Magnetics; Bottom Right, topography and image of drone used to collect
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Competent Person Statement
The Information in this report that relates to Exploration Results is based on information compiled by Mr Michael Wilson, a Competent Person who is a Member of the Australasian Institute of Mining and Metallurgy. Mr Wilson is a full-time employee and shareholder of Helix Resources Limited. Mr Wilson has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Wilson consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Forward-Looking Statements
This ASX release may include forward-looking statements. These forward-looking statements are not historical facts but rather are based on Helix Resources Ltd.’s current expectations, estimates and assumptions about the industry i n which Helix Resources Ltd operates, and beliefs and assumptions regarding Helix Resources Ltd.’s future performance. Words such as “anticipates”, “expects”, “intends”, “plans”, “believes”, “seeks”, “estimates”, “potential” and similar expressions a re intended to identify forward-looking statements. Forward- looking statements are only predictions and are not guaranteed, and they are subject to known and unknown risks, uncertainties and assumptions, some of which are outside the control of Helix Resources Ltd. Past performance is not necessarily a guide to future performance and no representation or warranty is made as to the likelihood of achievement or reasonableness of any forward-looking statements or other forecast. Actual values, results or events may be materially different to those expressed or implied in this presentation. Given these uncertainties, recipients are cautioned not to place reliance on forward looking statements. Any forward- looking statements in this announcement speak only at the date of issue of this announcement. Subject to any continuing obligations under applicable law and the ASX Listing Rules, Helix Resources Ltd does not undertake any obligation to update or revise any information or any of the forward-looking statements in this announcement or any changes in events, conditions or circumstances on which any such forward looking statement is based.
This ASX release was authorised by the Board of Directors of Helix Resources Ltd.
ABN: 27 009 138 738 Board of Directors: ASX: HLX Peter Lester Executive Chairman HLX Tim Kennedy Non-Executive Director Jason Macdonald Non-Executive Director Company Secretary Contact Details: Ben Donovan Helix Resources Limited 78 Churchill Avenue, Investor Contact: SUBIACO, WA, 6008 Peter Lester Tel: +61 (0)8 9321 2644 PO Box 825 Email: [email protected] West Perth, WA, 6872 Media Contact: Email: [email protected] Michael Vaughan Web: www.helixresources.com.au Fivemark Partners Tel: +61 (0)8 9321 2644 Tel: +61 422 602 720 Email: [email protected]
About Helix Resources
Helix Resources Limited (ASX:HLX) has been listed on the ASX since May 1986, exploring and developing projects in Australia and globally.
The Company’s current focus is its exciting copper and gold projects located near Cobar in New South Wales. The Cobar Region is highly endowed, with a number of gold and base metals mines active in the region including the CSA Mine, Peak Mine, Tritton Copper Operations and Hera Mine.
At the Company’s 100% owned Collerina Copper Project , the Company discovered the VMS-hosted Central Zone deposit in 2017, with a maiden Mineral Resource defined soon after. The Company is actively exploring in and around the Mineral Resource, looking for both clusters of mineralisation as well as potential extensions to the Mineral Resource.
To the west, the Company’s 100% ow ned Cobar Gold Project has identified a number of Mineral Resources, mainly focused around high-grade historical workings. The geology and structure at these prospects are similar to that seen at the 4Moz Peak Gold Mine to the north, where deposits are known to extend to over 1600m depth. The Company is looking to increase the Mineral Resources as well as assess near term mining and processing opportunities.
More recently, the Company identified a 1.7km x 0.7km northwesterly trending zone, which it has called the Rochford Trend . Within the trend, the Bijoux Prospect was the first drill tested by the Company, with wide zones of anomalous copper identified by pXRF analysis in the field. Detailed gold and base metals assays are pending.