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LCL RESOURCES LIMITED Capital/Financing Update 2017

Nov 26, 2017

65217_rns_2017-11-26_4f3eee59-87d4-44f4-b38b-5152695227f5.pdf

Capital/Financing Update

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ASX ANNOUNCEMENT

27 November 2017

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Maiden Ore Reserve for Miraflores

Metminco Limited (ASX: MNC, AIM: MNC) (“Metminco” or the “Company”) is pleased to announce a maiden NI 43-101 and JORC 2012-compliant Ore Reserve for its 100%owned Miraflores Gold Project in Colombia. This announcement replaces that made on 18 October 2017. The Company notes that the total contained tonnes, grade and metal content remain unchanged from the announcement of 18 October 2017, however the previously advised “Planned dilution” has been incorporated into the Proved and Probable categories of the Ore Reserve estimate as required by the JORC Code (2012).

The Ore Reserve has been estimated using a gold price assumption of US$1,200/oz and a cut-off grade of 1.53g/t Au. It is contained entirely within the Miraflores Deposit constrained Mineral Resource Estimate and is based entirely on the Measured and Indicated Resources.

The estimate represents a conversion rate of approximately 50% of Measured and Indicated Resources and has been based on information derived from the Miraflores Feasibility Study (FS) released on October 18[th] , 2017 with a further update on October 30, 2017.

Miraflores Mineral Reserve Estimate as at October 2017 (100% basis)

Reserve Classification Tonnes
(Mt)
Gold
(g/t)
Silver (g/t) Contained
Metal (Koz
Au)
Contained
Metal (Koz
Ag)
Proved 1.70 2.75 2.20 150 120
Probable 2.62 3.64 3.13 307 264
Total 4.32 3.29 2.77 457 385

Rounding-off of numbers may result in minor computational errors, which are not deemed to be significant. Source: Ausenco, 2017

The Company’s Ore Reserve estimate for the Miraflores Gold Project has been independently reviewed and signed off by Mr Boris Caro who is a Member of the Australasian Institute of Mining and Metallurgy and a Registered Member of the Chilean Mining Commission. Mr Caro is an independent consultant contracted by Ausenco to review and sign off the Ore Reserve estimate.

The information communicated in this announcement includes inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) 596/2014.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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Mr William Howe, Managing Director, said: “The release of the maiden Ore Reserve for the Miraflores Gold Project marks a significant step towards our goal of near-term production in South America and the culmination of many months of dedicated work by our team. It also cements our confidence in the projects location on the prolific Western Cordillera Andean Cauca trend.”

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William Howe Managing Director

Miraflores Gold Project

Mineral Resources

The Miraflores Measured and Indicated Mineral Resources are reported at a gold cut-off grade (CoG) of 1.20 g/t Au. The resources are based on 25,884m of drilling in 73 diamond drill holes and 236m of underground channel samples. This includes 3,624m in 10 holes carried out by AngloGold Ashanti and B2Gold in 2006-2007.

Miraflores is a gold-silver rich, magmatic-hydrothermal breccia pipe, located within a fertile hypabyssal porphyry cluster, whose genesis is intimately related to the evolution and cooling of magmatic and hydrothermal fluids emanating from the porphyry cluster's parent magma chamber.

At the porphyry-district scale certain geological, mineralogical and geochemical features are characteristic of peripheral breccias in the porphyry environment: the presence of altered and mineralised porphyry stocks in relative proximity to the breccia system.

Miraflores is located within 2 km of intense porphyry-style mineralisation, and at the property scale it cuts porphyry dykes.

Mineralisation at Miraflores is contained within the Miraflores magmatic-hydrothermal breccia body and in the basalts close to the contact. The prospect is well known for free native gold and silver occurring in vugs and cavities in the carbonate and quartz cement of

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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the breccia. Drilling has shown that gold mineralisation occurs in all types of breccias in the cement and matrix.

Statistical and visual checks were performed by Metal Mining Consultants of the estimated block model to ensure there were no discrepancies in the grade estimation routines and to ensure the geometry of mineralisation meets the configuration that the geologists expected for estimated mineralisation. The Mineral Resources are reported inclusive of the Ore Reserves.

Measured Mineral Resources; 2.96Mt @ 2.98g/t Au and 2.48g/t Ag

Indicated Mineral Resources; 6.31Mt @ 2.74g/t Au and 2.90g/t Ag

Measured and Indicated Mineral Resources; 9.27Mt @ 2.82g/t Au and 2.77g/t Ag

Inferred Mineral Resources; 0.49Mt @ 2.36g/t Au and 3.64g/t Ag

Competent Persons

Mineral Resources

The information provided in this ASX Release as it relates to Exploration Results and Mineral Resources of the Miraflores Gold Project is based on information compiled by Scott Wilson, President of Metal Mining Consultants Inc. in Colorado, USA. Mr Wilson, a Competent Person for JORC (2012 Edition) compliant statements, reviewed the technical information presented in this document. Mr Wilson has sufficient experience that is relevant to the style of mineralisation and type of mineral deposit under consideration, and to the activity which was undertaken, to make the statements found in this report in the form and context in which they appear. Mr Wilson has consented to be named in this announcement and inclusion of information attributed to him in the form and context in which it appears herein.

The full details of Mineral Resources are contained in ASX announcement of 14 March 2017 “MIRAFLORES MINE DEVELOPMENT UPDATED JORC 2012 MINERAL RESOURCE STATEMENT”.

Ore Reserves

The Company’s Ore Reserve estimates for the Miraflores Gold Project have been independently reviewed and signed off by Mr Boris Caro who is a Member of the Australasian Institute of Mining and Metallurgy and a Registered Member of the Chilean Mining Commission. Mr Caro is an independent consultant contracted by Ausenco to review and sign off the Ore Reserve estimate. Mr Caro has a broad international experience leading mining projects in several countries and he was a Qualified Person of Fortuna Silver Mines in 2014 and 2015. Mr Caro has over five years’ experience relevant to the style of mineralisation and type of mineral deposit under consideration, and to the activity which was undertaken, to make the statements found in this report in the form and context in which they appear. Mr Caro visited the site in August 2017 for 3 days as part of

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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the study team to review all aspects of the study including an investigation of the mine, plant and site layouts. Mr Caro has consented to be named in this announcement and inclusion of information attributed to him in the form and context in which it appears herein.

Type of Study Completed

A feasibility study has been completed for the Miraflores Project. Metminco engaged GR Engineering Services to complete the processing, infrastructure and feasibility study management aspects of the feasibility study. Ausenco Chile were engaged to complete all aspects of the mine design, mine scheduling, geotechnical analysis and ventilation system design to support the mine design, including capital and operating costs for the mine. Surface geotechnical design for the plant, infrastructure and tailings facility was undertaken by Dynami Geo Consulting (a Medellin based consulting company) and Grana y Montero Engineering, a Lima, Peru based engineering and contracting group assisted in the design of the Tailings Storage Facility. This study provided sufficient technical and economic support to back up the Ore Reserve estimate.

Further analysis and test work is recommended for the stope filling sequence and stability analysis prior to any decision to commence with the project construction.

- Cut off grade determination

An underground CoG of 1.53 g/t for gold was applied to underground diluted resources constrained by the final underground design. This grade delineated the Ore Reserve estimate. The CoG was utilised for the stope optimisation and the mining schedule.

  • Reserves are based on a gold price of US$1,200/oz;

  • Reserves are defined within an underground mine plan generated from diluted Measured and Indicated Mineral Resources;

  • An underground CoG of 1.53 g/t Au was applied to underground resources constrained by a final underground design;

  • Underground reserves assume a total dilution of 31%;

  • In-situ Au ounces disregard metallurgical recovery of 92%;

  • 28% of the mined out stopes and drifts will use backfill including waste and filtered tailings material. Backfilling operations will commence in the 2nd year of operation;

  • Detailed ventilation designs were applied; and

  • Reserves are based on topography received from Metminco on January 26, 2017.

Ore Reserve Estimation Factors

For stope optimisation, Stope Optimizer from Vulcan™ mine planning software was used. A post analysis of the optimisation confirms that for a life of mine of around 10 years, ore to plant of 1,300 tpd producing 4,000 oz Au per month. The stopes were requested to achieve a minimum average grade of 1.75 g/t-Au in the optimisation algorithm.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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The mining method selected for the Miraflores deposit is the retreat longhole open stope method with partial backfill. The decision of which stopes require to be backfilled was made taking into consideration the geotechnical analysis and the mining sequence.

Only the underground resources contained within the mining stopes or underground development drives were included in the Ore Reserve estimate.

Underground reserves assume a total dilution of 31%.

Ore loss has been accounted for by removing areas that will not be mined as they are either too remote from other potential ore to pay for additional development, or the potential value has been diluted to a point where the material is eliminated from consideration. No other ore loss has been considered.

Mine development and stope production were scheduled using Vulcan Gantt Scheduler™. The scheduler package developed the schedule following a logic sequence of development drives with a maximum monthly rate of 270m per horizontal development drill jumbo.

Ramps; 4.5 x 4.5 metres Drifts and cross-cuts; 4 x 4 metres Stoping minimum width; 2.5 metres Stoping average width; 7 metres

Production will start in year 1, focusing on high-grade areas and the early level development from the secondary ramps. The production will ramp up relatively quickly, allowing the processing of 1,300 tonnes per day during the first year of the mine schedule.

The mine operating and capital cost estimate was also constructed using first principles and an Excel™ cost model.

The geotechnical study included the data collection through drilling and mapping, rock mass classification, structural analysis, stability analysis and ground support recommendations.

The mine operation includes in-fill drilling activities for stope delineation and ore control purposes.

The dilution material will contain a small amount of Inferred Mineral Resources[1] , However, this material contributes less than 3% of the total material included in the mine plan. The

1 Cautionary Statement

There is a low level of geological confidence associated with Inferred Mineral Resources and there is no certainty that further exploration work will results in the determination of indicated mineral resources or the production target itself will be realised. The dilution material is considered as non-economical material, however, the mining method selected by Miraflores Feasibility Study does not allow to avoid the blend between the ore reserve and the dilution material.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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mining method does not allow to avoid the extraction of dilution material mainly due to poor selectivity within the stope boundaries or mining development drifts and cross-cuts. There is a low level of geological confidence associated with inferred mineral resources and there is no certainty that further exploration work will result in the determination of indicated mineral resources or that the production target itself will be realised.

The mining production schedule developed by Ausenco requires approximately 20% of the process tailings and all waste material mined for stope backfill purposes. Further backfill material (up to 50% of the total tailings), will be placed underground for cost and environmental benefit. Conceptually, Ausenco considers this strategy as adequate to improve either the stability of the stopes and for reducing the size of the tailing storage facility. However, it will be necessary to revisit the mining production schedule to achieve the proposed stope backfill targets prior to mining commencing.

Metallurgical Factors

The feasibility study metallurgical testwork program was conducted by Inspectorate Exploration and Mining Services of Vancouver, Canada, and ALS Laboratories and was designed to evaluate a process flowsheet that included:

  • Three-stage crushing;

  • Grinding;

  • Gravity concentration of the coarse gold;

  • Gold flotation of the gravity tailing;

  • Cyanide leaching of the gold flotation concentrate;

  • Cyanide detoxification of the cyanidation residue; and

  • Tailing thickening and filtration.

This flow sheet as tested has resulted in a gold recovery of 92% and silver recovery of 60% being utilised in the process plant design.

The process facility is designed to treat 474,500 tonnes of ore per annum (1,300 tonnes per day). The wet plant is scheduled to operate seven days per week at a nominal treatment rate of 59 dry t/h.

Environmental Studies

Baseline environmental studies were initiated by the previous owner in order to advance the development and preparation of an Environmental Impact Assessment (EIA) study needed for regulatory permitting in Colombia. Given the current revision to the mine plan, some additional studies may be required for the areas to which the mine facilities have been relocated. This will be determined once the final mine plan is developed and the aforementioned gap analysis has been completed but some of this information has already been gathered to date.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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As of July 2017, Baseline Study and Environmental Impact Assessment programs have recommenced. The bulk of the Baseline activities previously completed will be used as background information, however, local regulations requires all environmental and social baseline data to be no older than 12 months since its collection, thus new monitoring programs are underway starting Q3 of 2017.

The monitoring and environmental inventories consist of:

  • Fauna and flora characterisation;

  • Underground and surface water characterisation;

  • Noise, vibration and air pollution; and

  • Potential contaminants from extracted minerals and stored tailings.

This data along with the mineralogical, geological, social and economic aspects of the new project will be used to complete the Environmental Impact Assessment, as per the Terms of Reference received by Miraflores from the local environmental agency Corporacion Autonoma Del Risaralda (CARDER) in July 2017.

The Environmental Management Plan will be drafted once the environmental impacts are completed and finalised in late 2017.

Acid rock drainage characterisation data obtained to date includes ABA, multi-element analyses, and mineralogical analyses. Column testing was conducted for waste rock and low-grade stockpile materials. Geochemical evaluation of flotation tailings and cyanide leach tailings was also conducted. Preliminary results indicate that the flotation tailings and the majority of waste rock are non-PAG (non-potentially acid generating); whereas the low-grade stockpiles and cyanide leach tailings are PAG (potentially acid generating). Potential for metal leaching is indicated in the static test data, but further evaluation is in progress to acquire kinetic data for use in geochemical modelling.

The current mine plan does not include low grade stockpiling on surface. The cyanide leach tailings will be placed underground as part of the mine backfilling requirements.

The current environmental strategy includes the use of a large fraction of the expected tailings flow as underground backfill material. The remaining filtered tailings will be sent to the tailings management facility where they will be spread and mechanically compacted to achieve an unsaturated, dense and stable tailings deposit. No pond or water impoundment will exist so there is no potential for infiltration to native soils from the tailings materials.

Miraflores has received a mine development permit from the CARDER for the development of 2,000m of underground exploration development which includes 2 permanent waste dumps and water discharge licence (Resolution 1505 of 7 September 2017).

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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Infrastructure

The area is well serviced with respect to roads. The site is located approximately 7km from the Panamerican highway that runs along the Cauca River. The road connecting the Panamerican Highway with the town of Quinchia passes within a few kilometres of the site and is currently being upgraded with 4 of the 7km of road now newly sealed and with the remaining portion of the road expected to be completed prior to construction commencing. From the newly sealed road access to the site is via an unsealed road which will require upgrading to allow access for large bulk loads. The feasibility capital estimate allows for the upgrade to this access road, the mine haul roads and other proposed internal roads for the operation.

Sufficient labour is readily available throughout the region but specifically in Quinchia and in communities immediately surrounding the site. Professional and experience labour will be sourced from both within and outside of Colombia. The town of Quinchia and surrounding towns have an adequate supply of suitable accommodation for any labour brought into the area. It is Miraflores’s intention to employ labour locally and where labour is brought into the area from outside, the Company will require that labour to relocate to Quinchia.

Power Supply to the site will be via a new overhead power line from Quinchia. The incoming supply voltage will be 33 kV, with step-down transformers to the site distribution voltage of 13.8 kV. A medium voltage distribution board installed at the incoming HV switchyard will distribute power to the outgoing feeders. The new power line will be approximately 8km in length and will be a dedicated line.

Water supply needs for the Project (processing plant and camp) have been assessed and the water balance summary has been carried out. The processing plant will require a total of 500 m3/day of water to operate.

The accommodation camp will require 30 m3/day of freshwater which will be trucked to site from the local community water supply. The surplus water from mine dewatering operations will be used for construction works, dust suppression and drilling and/or will be sent to the water treatment plant.

Capital and Operating Costs

The capital and operating cost estimates produced for the establishment of the mine is considered to be an AACE class 3 estimate with a level of accuracy within -10% and +15%. Costs are presented in United States dollars (US$) and are based on prices in effect during the second quarter of 2017; no escalation factors have been applied.

The exchange rate applied for the operating and capital cost estimates are:

  • US$1.00 = A$0.80 (Australian Dollar);

  • US$1.00 = €0.86 (Euro); and

  • US$1.00 = 3,000 COP (Colombian Pesos).

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

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The FS delivered a total estimated Initial Capital cost of bringing the project into production of US$71.8 million excluding all contingency. This cost is based upon an EPCM approach whereby Miraflores assumes general risk. Contingencies of US$6.2 million was estimated for the project development. Contingencies have been estimated at 7.67% of initial capital.

Sustaining capital requirements associated with the mine and owner cost of US$18.5 million were included into the financial model.

The Operating cost was based on a high productivity operation, this will demand a high efficient environment for productivity and cost controls. No contingency was embedded into the operating cost.

The FS delivered the following results for the operating costs:

  • Mining cost of US$27.94 /processed t;

  • Processing cost of 20.54/processed t;

  • Tailing cost of US$0.62 /processed t; and

  • G&A cost of US$4.36 / processed t.

The total site operating cost is US$53.46 /processed t.

Government Royalty of US$52.18 / payable ounce.

Refining charges, transport and insurance of US$4.50 / payable ounce.

Total Cash Costs of US$599 / payable ounce.

The operating cost estimate did not include Corporate overheads and exploration activities.

Revenue Factors

The revenue estimate was conducted as per industry standards taking into consideration the annual metal production, commercial terms and predicted metal prices.

The revenue estimate utilised the following assumptions:

  • A gold and silver prices of US$1,300/oz and US$18 /oz respectively (Within the range of industry expectations and Broker and Bank predictions. The gold price used is close to the moving 5 year average gold price);

  • The average processed head grade of 3.29 g/t and 2.56 g/t for gold and silver respectively (from the mine and processing schedules);

  • Metallurgical recoveries of 92 % and 60 % for gold and silver production respectively (determined from metallurgical testwork);

  • Metal payability factors of 96.6 % and 99.0 % for gold and silver respectively (from historical figures and discussions with refiners);

  • Refinery and transport and insurance charges of US$4.50/ payable ounce (based on previous study estimates); and

Suite 401, 6 Help Street, Chatswood, NSW, 2067 Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

Metminco Limited ABN 43 119 759 349 ASX Code: MNC.AX; AIM Code: MNC.L

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  • Royalty of 4 % of the net smelter return (based on the Miraflores licence and Existing Aporte contract expiry (2019) prior to commencement of production in late 2019 when the licence will revert to the normal system of concession contracts which are subject to a 4% royalty only).

Economic Analysis

Metminco developed a comprehensive financial model for the economic evaluation of the Miraflores Gold Project. The financial model incorporates the modifying factors delivered by the FS.

The key assumptions utilised in the financial model are listed as follows:

  • Gold and silver prices of US$1,300 /oz and US$18 /oz respectively;

  • Net smelter return as per the Revenue estimate;

  • Operating and capital costs as per industry standards;

  • Working capital and inventory management as per industry standards;

  • Debt and financing activities are excluded from the net present cost estimate;

  • All cash flows were treated in real terms, therefore, no inflation or escalation factors were applied;

  • Discount Rate of 8%;

  • Site operating cost of US$ 53,46 /processed t; and

  • Income tax of 33%.

The FS delivered a Net Present Value of US$72.3 million after tax and an Internal Rate of Return of 25%.

Social Licence

According to the social base line information for the project carried out in 2013, there were 289 families in the direct influence area, with a total population of 1,152 inhabitants. The village that has the largest number of inhabitants was Miraflores with 410 inhabitants.

Community base line studies, social impact assessments and community development plans will be complete by the end of 2017.

The Company has an existing agreement with the artisanal miners at Miraflores that will provide education, training and jobs for some of the certified miners while others will receive compensation when the project enters construction and artisanal mining ceases.

The Company maintains excellent relations with the local community, municipality and government agencies.

Project Risks and Operating Licences

The main risks for the development of the Miraflores Gold Project identified by the FS are described as follows:

described as follows:
Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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  • Social disruptions or community unacceptance of the project;

  • Gold price;

  • Increase of the predicted capital or operating cost;

  • Not achieving the target production because of mining or processing issues. E.g. reduced ore grade, not achieving the design processing throughput or gold recovery, etc.

  • Existing Miraflores licence contract is not renewed or the licence does not revert to the normal system of concession contracts which are subject to a 4% royalty only);

  • Geotechnical instability; and

  • Unpredicted water levels in the underground mine.

Other than the Aporte contract for the Miraflores licence no other material agreement is in effect at this time.

The Miraflores Project Environmental Impact Assessment Study (2013) did not previously have an official Terms of Reference (ToR), instead, the baseline data collection and impact assessment development was progressed under a generic ToR for open pit mining. This generic ToR was issued by National Authority of Environmental Licenses (ANLA) in 2012. In July 2016, a new ToR was issued by ANLA. The Project submitted a request to CARDER for an official ToR for the new underground Project concept. The new ToR was obtained in August 2017 and is being used as the basis for the ongoing environmental and social work.

The Environmental Impact Assessment Study is expected to be submitted in Q1 of 2018.

Plan de Trabajos y Obras or (PTO); The PTO licence is issued by the Ministry Of Mines and Energy and must comply with the Terms of Reference set out by the ministry for non seabed minerals and materials.

All projects must obtain an EIA and PTO prior to commencing development of the project. Approvals are expected to take between 4 and 6 months from submission depending on the requirement to provide further data requested by the authorities.

Ore Reserve Estimate

The Ore Reserve estimate of the Miraflores Project is reported as at the effective day of 18 October, 2017.

The Ore Reserve estimate is inclusive of Mineral Resources.

The reference point of the Ore Reserve is the run of mine stock pile area where the material will be fed into the process plant.

The reserve estimate is supported by the FS complying with the JORC Code standards.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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The Ore Reserve estimate provided appropriately reflects the Competent Person’s view of the opportunity for Metminco to develop the Miraflores Gold Project based on the modifying factors derived from the FS work and the updated Mineral Resource model.

The key modifying factors of the Ore Reserve estimate are described as follows:

  • Reserves are based on a gold price of US$1,200/oz and silver price of US$18/oz;

  • An underground CoG of 1.53 g/t-Au was applied to underground resources constrained by a final underground design;

  • Reserves are defined within an underground mine plan generated from diluted Mineral Resources;

  • Underground reserves assume a total dilution of 31%;

  • Mining and processing production schedules were developed for assessing the technical viability of the project;

  • Revenue estimates were developed as per industry standards;

  • Operating and capital cost estimates were executed as per industry standards; and

  • The construction and production schedules formed the basis for a financial model delivering a positive outcome for the economic evaluation.

Proved: 1.70Mt @ 2.75g/t Au and 2.20g/t Ag Probable: 2.62Mt @ 3.64g/t Au and 3.13g/t Ag Proved and Probable: 4.32Mt @ 3.29g/t Au and 2.77g/t Ag

Statement of Accuracy

The Competent Person has recommended that further work be conducted prior to commencement of construction of the Miraflores Project on the following topics:

  • Geotechnical stability analysis for the underground mine, especially in the areas

  • containing non-backfilled stopes;

  • Stope Backfilling sequence;

  • Develop a detailed mining construction schedule;

  • Understand the predicted underground water levels; and

  • Update the environmental and social costs as per the granted permit –still to be granted.

This further work may result in some changes to the modifying factors representing a high risk for the achievement of the technical and economic outcome of the Miraflores Gold Project delivered by the FS.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

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GLOSSARY OF TECHNICAL TERMS

“basalt” A dark-coloured, fine-grained extrusive igneous rock composed of
plagioclase feldspar, pyroxene, and magnetite, with or without olivine and not
more than53 percent.SiO2.
"breccia" Breccia is a rock classification, comprises millimetre to metre-scale rock
fragments cemented together in a matrix, there are many sub-classifications
of breccias.
"cut-off" the grade threshold above which a mineral material is considered potentially
economic
“concentrate” Metal ore once it has been through milling and concentration so that it is
ready for chemical processing or smelting.
"grade" The proportion of a mineral within a rock or other material. For gold
mineralisationthisis usuallyreported as grams ofgold pertonne of rock(g/t).
"g/t" grams per tonne; equivalent to parts per million ('ppm').
“hypabyssal” intermediate in texture between coarse-grained intrusive rocks and fine-
grained extrusiverocks.
"Indicated Resource" An "Indicated Mineral Resource" is that part of a Mineral Resource for which
quantity, grade or quality, densities, shape and physical characteristics, can
be estimated with a level of confidence sufficient to allow the appropriate
application of technical and economic parameters, to support mine planning
and evaluation of the economic viability of the deposit. The estimate is based
on detailed and reliable exploration and testing information gathered through
appropriate techniques from locations such as outcrops, trenches, pits,
workings and drill holes that are spaced closely enough for geological and
grade continuity to be reasonably assumed.
"Inferred Resource" An "Inferred Mineral Resource" is that part of a Mineral Resource for which
quantity and grade or quality can be estimated on the basis of geological
evidence and limited sampling and reasonably assumed, but not verified,
geological and grade continuity. The estimate is based on limited information
and sampling gathered through appropriate techniques from locations such
as outcrops, trenches, pits, workings and drill holes.
“JORC Code” The Australasian Code for Reporting of Exploration Results, Mineral
Resources and Ore Reserves (2012 edition), published by The Joint Ore
Reserves Committee of the Australasian Institute of Mining and Metallurgy,
Australian Institute of Geoscientists and Minerals Council of Australia
(“JORC”).
"Measured Resource" A "Measured Mineral Resource" is that part of a Mineral Resource for which
quantity, grade or quality, densities, shape, and physical characteristics are
so well established that they can be estimated with confidence sufficient to
allow the appropriate application of technical and economic parameters, to
support production planning and evaluation of the economic viability of the
deposit. The estimate is based on detailed and reliable exploration, sampling
and testing information gathered through appropriate techniques from
locations such as outcrops, trenches, pits, workings and drill holes that are
spaced closely enough to confirm both geological and grade continuity.
“Mineral Reserve” That part of a Mineral Resource that has been demonstrated to be
economically extractable.
"Mineral Resource" A "Mineral Resource" is a concentration or occurrence of diamonds, natural
solid inorganic material, or natural solid fossilized organic material including
base and precious metals, coal, and industrial minerals in or on the Earth's
crust in such form and quantity and of such a grade or quality that it has
reasonable prospects for economic extraction. The location, quantity, grade,
geological characteristics and continuity of a Mineral Resource are known,
estimated or interpretedfromspecific geologicalevidence andknowledge.
“Mineralisation” The process by which minerals are introduced into a rock. More generally, a
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term applied to accumulations of economic or related minerals in quantities
ranging from weakly anomalous to economically recoverable.
"open pit mining" A method of extracting minerals from the earth by excavating downwards
from the surface such that the ore is extracted in the open air (as opposed to
undergroundmining).
“porphyry” A medium to coarse-grained intrusive, felsic, igneous rock which is
conspicuously porphyritic, containing more than 25 per cent phenocrysts by
volume. The phenocrystmineral is usually alkali feldspar.
“Probable Reserve” according to the JORC Code, the economically mineable part of a Measured
and/or Indicated Mineral Resource. It is inclusive of diluting materials and
allows for losses that may occur when the material is mined. Appropriate
assessments, which may include feasibility studies, have been carried out,
including consideration of, and modification by, realistically assumed mining,
metallurgical, economic, marketing, legal, environmental, social and
government factors. These assessments demonstrate at the time of reporting
that extraction is reasonably justified.
“Proved Reserve” according to the JORC Code, the economically mineable part of a Measured
Mineral Resource. It is estimated with a high level of confidence. It is
inclusive of diluting materials and allows for losses that may occur when the
material is mined Appropriate assessments, which may include feasibility
studies, have been carried out, including consideration of, and modification
by, realistically assumed mining, metallurgical, economic, marketing, legal,
environmental, social and government factors. These assessments
demonstrate at the time of extraction is reasonably justified.
“underground mining” extraction of minerals from the Earth’s crust using a system of
undergroundmineworkings.
“vugs” a cavity in rock, lined with mineral crystals.
Abbreviations
AACE Association for the Advancement of Cost Engineering International
ABA Acid Base Accounting
Ag Silver
Au Gold
Cu Copper
CoG Cut off Grade
h hour(s)
km Kilometres
l Litres
M million(s)
Mt/a Million tonnes per annum
m Metres
t Tonnes
t/a tonnes per annum
t/d or tpd tonnes per day
t/h tonnes per hour

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For further information, please contact: METMINCO LIMITED

Brian Jones

Office: +61 (0) 2 9460 1856

NOMINATED ADVISOR AND BROKER RFC Ambrian

Australia Will Souter / Alena Broesder

Office: +61 (0) 2 9250 0000

United Kingdom

Charlie Cryer

Office: +44 (0) 20 3440 6800

JOINT BROKER

SP Angel Corporate Finance LLP (UK)

Ewan Leggat

Office: +44 (0) 20 3470 0470

PUBLIC RELATIONS

Camarco

United Kingdom Gordon Poole / Nick Hennis Office: + 44 (0) 20 3757 4997

Media + Capital Partners Australia

Luke Forrestal Office: +61 (0) 411 479 144

Forward Looking Statement

All statements other than statements of historical fact included in this announcement including, without limitation, statements regarding future plans and objectives of Metminco are forward-looking statements. When used in this announcement, forward-looking statements can be identified by words such as ‘’anticipate”, “believe”, “could”, “estimate”, “expect”, “future”, “intend”, “may”, “opportunity”, “plan”, “potential”, “project”, “seek”, “will” and other similar words that involve risks and uncertainties.

These statements are based on an assessment of present economic and operating conditions, and on a number of assumptions regarding future events and actions that, as at the date of this announcement, are expected to take place. Such forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of the Company, its directors and management of Metminco that could cause Metminco’s actual results to differ materially from the results expressed or anticipated in these statements.

The Company cannot and does not give any assurance that the results, performance or achievements expressed or implied by the forward-looking statements contained in this announcement will actually occur and investors are cautioned not to place undue reliance on these forward-looking statements. Metminco does not undertake to update or revise forward-looking statements, or to publish prospective financial information in the future, regardless of whether new information, future events or any other factors affect the information contained in this announcement, except where required by applicable law and stock exchange listing

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

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Section 4 Estimation and Reporting of Ore Reserves

(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section.)

Criteria JORC Code
Explanation
Commentary Responsible
to
Complete
and/or
Review the
Comments
Mineral Resource
estimate review for
conversion to Ore
Reserves
Description of the
Mineral Resource
estimate used as a basis
for the conversion to an
Ore
Reserve.
Clear statement as to
whether the Mineral
Resources are reported
additional to, or inclusive
of, the Ore Reserves.
Miraflores is a gold‐silver rich,
magmatic‐hydrothermal breccia
pipe, located within a fertile
hypabyssal porphyry cluster,
whose genesis is intimately
related to the evolution and
cooling of magmatic and
hydrothermal fluids emanating
from the porphyry cluster's
parent magma chamber.
At the porphyry‐district scale
certain geological, mineralogical
and geochemical features are
characteristic of peripheral
breccias in the porphyry
environment: the presence of
altered and mineralised
porphyry stocks in relative
proximity to the breccia system.
Miraflores is located within 2 km
of intense porphyry‐style
mineralisation, and at the
property scale it cuts porphyry
dykes.
Alteration is dominated by lower
temperature phyllic, argillic and
propylitic varieties, forming
peripheral to or above the higher
temperature potassic core zones
associated with the porphyries
themselves. Alteration at
Miraflores is strongly propylitic.
The increased values of base
and trace metals(Zn,Pb,Sb,As)
Metminco
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as seen at Miraflores occur
peripheral to the core porphyry
zones containing Au, Cu and
Mo.
The Miraflores occurrence
conforms to that of a magmatic‐
hydrothermal breccia. It is the
only type of potentially
economic precious metal
mineralisation presently known
to be contained within the
Miraflores property. The above
outlined features support its
genesis in direct relation to the
emplacement and cooling of
mineralised hypabyssal Au‐Cu‐
rich porphyry bodies in the
Quinchía district. It is important
to note that no significant
porphyry‐style mineralisation or
hypabyssal porphyry bodies
have been detected within the
Miraflores property.
Sillitoe (2006) notes that the
prevalence of epidote and
carbonate in the Miraflores
breccia is uncommon for
magmatic‐hydrothermal
breccias. He interprets their
abundance, along with the lack
of alteration in the basalt clasts,
as an indication of the buffering
effect exerted by the abundant
calcium rich basalt clasts upon
the hydrothermal solutions
circulating throughout the
breccia. In the case of the white
breccia, the polymictic breccia
was moved, broken and invaded
by the quartz‐calcite infill, which
in the porphyry veinlet
classifications belong to the ‘E’
stage (Tobey, 2012).
Younger sub‐vertical
Metminco Limited ABN 43 119 759 349
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mineralised faults (veins) SSE ‐ NNW and SE ‐ NW, dipping from 75° to 90° that cross cut the breccia, represent a late event that are characterised by a high content of sulfides (chalcopyrite, pyrite, galena and sphalerite), and high gold grades. These structures could have acted as the feeders of the mineralisation to the breccia where the pre‐existing porosity and permeability have played an important role in the mineralization control. At 200 to 300 m depth, high gold grade mineralisation in the cement and matrix of the breccia is found, possibly associated with a boiling zone. This is an irregular zone of 60 m width. Mineralisation at Miraflores is contained within the Miraflores magmatic-hydrothermal breccia body and in the basalts close to the contact. At surface, the breccia is exposed on a 30° slope, which has been worked by informal miners using artisanal methods in small excavations and irregular tunnels. The prospect is well known for free native gold and silver occurring in vugs and cavities in the carbonate and quartz cement of the breccia. Drilling has shown that gold mineralisation occurs in all types of breccias in the cement and matrix. At least two mineralising events before formation of the

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
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epithermal breccia have been
observed in the fragments of
the breccia. Locally, basalt
clasts with veinlets of ‘B’ style
(comb quartz without alteration
halo) cut by pyrite‐epidote
cracks are evidence of a possible
porphyry style mineralisation
preceding the breccia
formation. In the case of the
white breccia, the polymictic
breccia was moved, broken and
invaded by the quartz‐calcite
infill, which in the porphyry
veinlet classifications belong to
the ‘E’ stage (Tobey, 2012).
In the White Breccias sulfide
minerals occur throughout the
quartz and calcite stages, and
are often concentrated on
epidote at the start of the
quartz phase, and are also
commonly euhedral in quartz
vugs. The sulfides are euhedral
and coarse grained (2 to 4 mm).
The percentage of sulfides is
low. The sulphides seen are
pyrite, chalcopyrite,
molybdenite, galena and
sphalerite (honey‐colored,
Zn‐ rich). Rare visible gold can
occur in vugs.
Low grade gold mineralisation is
found in a halo around the
breccia pipe in the basalts, and
is characterised by quartz‐
calcite veinlets with low content
of sulfides (pyrite, galena,
sphalerite) controlled by the
density of fracturing created by
the formation of the breccia.
The mineralisation in breccias
and in the basalt is
characterised bylow contents of
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chalcopyrite, sphalerite and
galena, occurring as fine grains
(<100 µm).
The younger sub‐vertical veins
SSE ‐ NNW and NW ‐ SE, dipping
from 75° to 90° that cross cut
the breccia, are characterised by
argillized material that contain
important quantities of sulfides
pyrite, chalcopyrite, sphalerite
and galena. Some visible gold
has been observed. The sulfides
are present as coarse particles
ranging from 100 to 200 µm and
greater than 200 µm. The
persistence of the SSE‐ NNW
structures is important and is
clearly recognised in the
exploitation workings of the
AMM where high gold grade
mineralisation can be followed
by more than 150 m in
horizontal and more than 80 m
in vertical, with almost no
displacement of the structures.
Crossing of structures (veins)
are forming high gold grade
shoots of variable dimensions
that can be observed in the
AMM workings.
The Mineral Resource estimate
for
the
Miraflores
deposit
reported on 14 March 2017 was
used as the basis for the
conversion to an Ore Reserve.
The Mineral Resource model
was
delivered
to
Ausenco
through a data file The resource
model
for
Miraflores
was
constructed
with
Vulcan
software using a block model.
All of the required information
about the depositis storedin
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each individual block. This
includes
estimated
characteristics of gold and silver
and
statistical
characteristics
such as number of samples used
in an estimate, distances to the
nearest sample, number of drill
holes used, etc., are stored in
each individual block. Geologic
triangulations were also used to
identify the rock type of each
block, and these structures also
controlled the sub-blocking in
Vulcan along their boundaries.
Geologic codes stored in the
block model were also used to
assign the density within specific
geologic boundaries.
Final
geologic
codes
were
applied to the block model using
indicator kriging. Indicator
kriging provides a very good
check
against
the
implicit
models derived with Leapfrog.
This methodology estimates the
probability that any block is a
certain rock type based on the
geologic information identified
in drill hole logging. The
volumes
derived
from
the
indicator kriging were nearly
identical
to
the
volumes
identified with Leapfrog. So in
keeping with generally accepted
practices rock units were applied
using indicator kriging.
Blocks identified as breccia,
basalt
and
saprolite
were
estimated only using samples
also identified as the same.
Samples within the modelled
veins were not used to estimate
grade within the breccia, basalt
or saprolite. Samples within the
veins were limited to the vein
the samples correlated withand


Metminco Limited ABN 43 119 759 349
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only used to estimate grades
within
that
specific
vein.
Samples within the breccia,
basalt and saprolite but outside
the veins were not used to
estimate grade within the veins.
For
example:
only
samples
flagged in vein 800 were used to
estimate blocks within vein 800
and only samples flagged as
breccia were used to estimate
blocks
within
the
breccia
boundary.
Inverse distanced cubed grade
estimation
methodology
was
used to estimate gold and silver
grades for Miraflores. For the
breccia, basalt and saprolite
variography
was
done
to
determined
proper
search
ellipsoid orientation and search
distances.
The Miraflores Measured and
Indicated Mineral Resources are
reported at a gold cut-off grade
of 1.20 g/t Au. The resources
are based on 25,884mof drilling
in 73 diamond drill holes and
236m of underground channel
samples. This includes 3,624m
in 10 holes carried out by
AngloGold Ashanti and B2Gold
in 2006-2007.
Statistical and visual checks
were
performed
by
Metal
Mining
Consultants
of
the
estimated block model to ensure
there were no discrepancies in
the grade estimation routines and
to ensure the geometry of
mineralisation
meets
the
configuration that the geologists
expected
for
estimated
mineralisation.

Metminco Limited ABN 43 119 759 349
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Measured Mineral Resources;
2.96Mt @ 2.98g/t Au and
2.48g/t Ag
Indicated Mineral Resources;
6.31Mt @ 2.74g/t Au and
2.90g/t Ag
Measured
and
Indicated
Mineral Resources; 9.27Mt @
2.82g/t Au and 2.77g/t Ag
Inferred
Mineral
Resources;
0.49Mt @ 2.36g/t Au and
3.64g/t Ag
The
Mineral
Resources
are
reported inclusive of the Ore
Reserves.
Artisanal miners have caused ore
depletion within the Miraflores
Project mining footprint. The
Mineral Resource Estimate used
as the base for the Ore Reserve
estimate incorporates this ore
depletion. The Ore Reserve
estimate has relied on the
accuracy
of
the
Mineral
Resource Estimate.
Site visits Comment on any site
visits undertaken by the
Competent Person and
the outcome of those
visits.
If no site visits have been
undertaken indicate why
this is the case.
Mr Boris Caro visited the site in
August 2017 for 3 days as part
of the study team to review all
aspects of the study including an
investigation of the mine, plant
and site layouts.
The site visit involved field
work on the project footprint
area including an inspection of
the underground tunnels and
artisanal miners workings.
Consultants involved in the
mining
study,
metallurgical
testwork,
geotechnical
and
geological
mapping,
infrastructure study, social and
environmental studies all
visited the site during this time.
CPs
Metminco Limited ABN 43 119 759 349
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Study status The type and level of
study undertaken to
enable Mineral
Resources to be
converted to Ore
Reserves.
The Code requires that a
study to at least Pre-
Feasibility Study level
has been undertaken
to convert Mineral
Resources to Ore
Reserves. Such studies
will have been carried
out and
will have determined a
mine plan that is
technically achievable
and economically viable,
and that material
Modifying Factors have
been considered.
A feasibility study has been
completed for the Miraflores
Project. Metminco engaged GE
Engineering
Services
to
complete
the
processing,
infrastructure
and
feasibility
study management aspects of the
feasibility study. Ausenco Chile
were engaged to complete all
aspects of the mine design, mine
scheduling,
geotechnical
analysis and ventilation system
design to support the mine
design, including capital and
operating costs for the mine.
Surface geotechnical design for
the plant, infrastructure and
tailings facility was undertaken
by Dynami Geo Consulting (a
Medellin
based
consulting
company) and Grana y Montero
Engineering, a Lima, Peru based
engineering
and
contracting
group assisted in the design of
the Tailings Storage Facility.
This study provided sufficient
technical and economic support
to back up the Ore Reserve
estimate.
Further analysis and test work is
recommended for the stope
filling sequence and stability
analysis prior to any decision to
commence
with
the
project
construction.
Metminco
Cut-off parameters The basis of the cut-off
grade(s) or quality
parameters applied.
An underground cut-off grade
(CoG) of 1.53 g/t for gold was
applied to underground diluted
resources constrained by the
final underground design. This
grade delineated the Ore Reserve
estimate.

Reserves are based on a
gold price of US$1,200/oz;

Reserves
are
defined
AUSENCO
Metminco Limited ABN 43 119 759 349
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within
an
underground
mine plan generated from
diluted
Measured
and
Indicated
Mineral
Resources;

An underground CoG of
1.53 g/t Au was applied to
underground
resources
constrained
by
a
final
underground design;

Underground
reserves
assume 20% planned and
11% unplanned dilution;

In‐situ Au ounces disregard
metallurgical recovery of
92%;

28% of the mined out
stopes and drifts will use
backfill including waste and
filtered tailings material.
Backfilling operations will
commence in the 2nd year
of operation;

Detailed ventilation
designs were applied; and

Reserves are based on
topography received from
Metminco on January 26,
2017.
The cut-off grade was utilised
for the stope optimisation and
the mining schedule.
There are approximately 7,000
ounces of gold contained in
material with a gold grade
between 0.60 and 1.53 g/t. This
material is not part of the Ore
Reserve but it may deliver a
positive
economic
value,
therefore, it will be kept in a
stock pile for potential feed to
the processing plant.
Mining factor or
assumptions
The method and
assumptions used as
For stope optimisation, Stope
Optimizer fromVulcan™ mine
AUSENCO
Metminco Limited ABN 43 119 759 349
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reported in the PreFeasibility or Feasibility Study to convert the Mineral Resource to an Ore Reserve (i.e. either by application of appropriate factors by optimisation or by preliminary or detailed design).

The choice, nature and appropriateness of the selected mining method(s) and other mining parameters including associated design issues such as pre-strip, access, etc.

The assumptions made regarding geotechnical parameters (e.g. pit slopes, stope sizes, etc.), grade control and preproduction drilling.

The major assumptions made and Mineral Resource model used for pit and stope optimisation (if appropriate).

The mining dilution factors used.

The mining recovery factors used.

Any minimum mining widths used.

planning software was used. A post analysis of the optimisation confirms that for a life of mine of around 10 years, ore to plant of 1,300 tpd producing 4,000 oz Au per month. The stopes were requested to achieve a minimum average grade of 1.75 g/t Au in the optimisation algorithm.

The mining method selected for the Miraflores deposit is the retreat longhole open stope method with partial backfill. The decision of which stopes require to be backfilled was made taking into consideration the geotechnical analysis and the mining sequence.

The quantity and shape of the stopes were optimised with the Vulcan™ software. This process defined the total amount of Mineral Resources above the cut-off grade. Subsequently, a manual check to eliminate the stopes isolated or difficult to mine reduced the material selected for the Ore Reserve estimate. For example the stopes located between surface and a vertical distance of 80m were eliminated from the Ore Reserve estimate due to geotechnical stability considerations.

The Mineral Resource Model used was developed by Metal Mining Consultants of Denver, USA who provided the block model to Ausenco.

The manner in which Only the underground resources Inferred Mineral contained within the mining Resources are utilised in stopes or underground mining studies and the development drives were sensitivity of the outcome included in the Ore Reserve

Metminco Limited ABN 43 119 759 349 ASX Code: MNC.AX; AIM Code: MNC.L

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to their inclusion. estimate.
Underground reserves assume
total dilution of 31%.
Ore loss has been accounted for
by removing areas that will not
be mined as they are either too
remote from other potential ore
to
pay
for
additional
development, or the potential
value has been diluted to a point
where the material is eliminated
from consideration. No other
ore loss has been considered.
The mine layout was developed
to obtain quick access to several
mining areas by utilising three
mine
access
portals.
The
ventilation circuit was designed
to use the mine portals, ramps
and three 3.1m diameter raise
bored shafts for air intake and
one large extraction raise (5m x
5m) was designed to extract the
contaminated air.
The stope design included an
assessment of the crown pillar,
sill pillars, dip pillars and rib
pillars. The mine development
design includes the main ramp
and secondary ramps, drifts,
cross cuts, passing bays, muck
loading bays, refugee stations,
dewatering
bays,
electrical
substation bays and ventilation
drifts. Details of the dimensions
for
the
stope
and
mine
development designs are listed
below and described in the
Miraflores
Feasibility
Study
Report.
Mine development and stope
production were scheduled using
VulcanGantt Scheduler™.The
Metminco Limited ABN 43 119 759 349
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scheduler package developed the
schedule
following
a
logic
sequence of development drives
with a maximum monthly rate of
270m
per
horizontal
development drill jumbo.
Ramps; 4.5 x 4.5 metres
Drifts and cross-cuts; 4 x 4
metres
Stoping minimum width; 2.5
metres
Stoping average width; 7 metres
Production will start in year 1,
focusing on high-grade areas and
the early level development from
the
secondary
ramps.
The
production
will
ramp
up
relatively quickly, allowing the
processing of 1,300 tonnes per
day during the first year of the
mine schedule.
The mine development and
production schedule included an
estimate of the mine mobile
equipment
and
workforce
required
to
achieve
the
production
targets.
Ausenco
created an Excel™ model for
this
purpose
taking
into
consideration productivity and
maintenance factors.
The mine operating and capital
cost
estimate
was
also
constructed using first principles
and an Excel™ cost model.
The geotechnical study included
the
data
collection
through
drilling and mapping, rock mass
classification, structural analysis,
stability analysis and ground
support recommendations. An
extensive
section
describing
Metminco Limited ABN 43 119 759 349
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further details for these topics
are detailed in of the Miraflores
Feasibility Study Report.
The mine operation includes in-
fill drilling activities for stope
delineation
and
ore
control
purposes.
The
dilution
material
will
contain a small amount of
Inferred
Mineral
Resources1,
However,
this
material
contributes less than 3% of the
total material included in the
mine plan. The mining method
does not allow to avoid the
extraction
of
this
material
mainly
due
to
the
poor
selectivity
within
the
stope
boundaries
or
mining
development drifts and cross-
cuts.
The mining production schedule
developed by Ausenco requires
approximately
20%
of
the
process tailings and all waste
material mined for stope backfill
purposes.
Further
backfill
material (up to 50% of the total
tailings),
will
be
placed
underground
for
cost
and
environmental
benefit.
Conceptually,
Ausenco
considers
this
strategy
as
adequate to improve either the
stability of the stopes and for
reducing the size of the tailing
storage facility. However, it will
be necessary to revisit the
mining production schedule to
achieve
the
proposed
stope
backfill targets prior to mining
commencing.
(1)Cautionary Statement
There is a low level of
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
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geological confidence
associated with inferred
mineral resources and there is
no certainty that further
exploration work will results
in the determination of
indicated mineral resources
or the production target itself
will be realised. The dilution
material is considered as non‐
economical material,
however, the mining method
selected by Miraflores
Feasibility Study does not
allow to avoid the blend
between the ore reserve and
the dilution material.
Metallurgical
factors or
assumptions
The metallurgical
process proposed and the
appropriateness of that
process to the style of
mineralisation.
Whether the
metallurgical process is
well-tested technology or
novel in nature.
The nature, amount and
representativeness of
metallurgical test work
undertaken, the nature of
the metallurgical
domaining applied and
the corresponding
metallurgical recovery
factors applied.
Any assumptions or
allowances made for
deleterious elements.
The existence of any bulk
sample or pilot scale test
work and the degree to
which such
samples are considered
representative of the
orebody as a whole.
The
Feasibility
Study
metallurgical testwork program
was conducted by Inspectorate
Exploration and Mining Services
(Inspectorate)
of
Vancouver,
Canada, and ALS Laboratories
(ALS) and was designed to
evaluate a process flowsheet that
included:

Three‐stage crushing;

Ball mill grinding;

Gravity concentration of
the coarse gold;

Gold
flotation
of
the
gravity tailing;

Cyanide leaching of the
gold flotation concentrate;

Cyanide detoxification of
the cyanidation residue;
and

Tailing
thickening
and
filtration.
This flow sheet as tested has
resulted in a gold recovery of
92% and silver recovery of 60%
being utilised in the process
plant design.
Three testwork programs using
Miraflores diamond drill core
GRES

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

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For minerals that are
defined by a
specification, has the ore
reserve estimation been
based on the appropriate
mineralogy to meet the
specifications?
have
been
completed
by
Miraflores, all using the services
of Inspectorate Exploration and
Mining Services (Inspectorate)
based in Vancouver, Canada.
Similar
results
have
been
achieved in all three programs.
The metallurgical process is well
tested and is utilised in the
extraction of gold in many parts
of the world and is well proven
for this type of mineralisation.
No part of the process design is
novel
in
nature.
The
metallurgical
testwork
has
successfully demonstrated that
recovery of gold at Miraflores
by
gravity
and
flotation
concentrating is very effective
with demonstrated recoveries for
gold of 92%.
Although small amounts of base
metals are evident, testwork has
indicated that these are not
concentrated to deliterous levels
in the concentrate and have no
effect
in
gold
recovery
at
Miraflores.
Historical mining and processing
by previous owners Asociación
de
Mineros
de
Miraflores
(AMM)
demonstrated
the
effectiveness of processing ore
from the Miraflores breccia.
Stoping over a vertical distance
of 80m and strike of 200m
demonstrated grade continuity
and extraction of gold using
cyanide processes.
The mineralogy of the orebody
at Miraflores is best presented
by the investigation of three
panned
concentrates
from
Metminco Limited ABN 43 119 759 349
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Knelson concentrate test work
that determined that the primary
gold-bearing mineral present is
native gold with only minor
amounts present as electrum.
Minor
amounts
of
Au/Ag
telluride minerals were also
observed
being
primarily
composed of petzite, having a
higher
gold
content,
and
subordinate amounts of hessite
and stuetzite. These tellurides
are often closely association
with
native
gold,
but
not
exclusively. Native gold was
mainly
liberated
with
finer
grains attached or included in
sulphide minerals, which include
pyrite, sphalerite and galena in
minor amounts. Mineralogical
work has shown that greater than
97% of gold at Miraflores occurs
as free gold with the rest made
up mostly of electrum. This fact
supports the testwork which has
demonstrated that gravity gold
recovery
using
Knelson
concentrators achieves high gold
recoveries
into
a
gravity
concentrate. (>60%).
At
the
completion
of
the
feasibility
study
the
only
testwork
remaining
to
be
completed
was
filtration
testwork on the flotation tailings
and concentrate leach residue
both of which are currently in
progress.
The process facility is designed
to treat 474,500 tonnes of ore
per annum (1,300 tonnes per
day). The wet plant is scheduled
to operate seven days per week
at a nominal treatment rate of 59
dry t/h.
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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Environmental The status of studies of
potential environmental
impacts of the mining
and processing
operation. Details of
waste rock
characterisation and the
consideration of potential
sites, status of design
options considered and,
where applicable, the
status of approvals for
process residue storage
and waste dumps should
be reported.
Baseline environmental studies
were initiated by the previous
owner in order to advance the
development and preparation of
an
Environmental
Impact
Assessment study needed for
regulatory
permitting
in
Colombia. Given the current
revision to the mine plan, some
additional
studies
may
be
required for the areas to which
the mine facilities have been
relocated.
This
will
be
determined once the final mine
plan is developed and the
aforementioned gap analysis has
been completed but some of this
information has already been
gathered to date.
As of July 2017, Baseline Study
and
Environmental
Impact
Assessment
programs
have
recommenced. The bulk of the
Baseline activities previously
completed will be used as
background
information,
however,
local
regulations
requires all environmental and
social baseline data to be no
older than 12 months since its
collection, thus new monitoring
programs are underway starting
Q3 of 2017.
The
monitoring
and
environmental
inventories
consist of:

Fauna
and
flora
characterisation;

Underground and surface
water characterisation;

Noise, vibration and air
pollution; and

Potential
contaminants
from extracted minerals
and stored tailings.
DYNAMI
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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This
data
along
with
the
mineralogical, geological, social
and economic aspects of the new
project will be used to complete
the
Environmental
Impact
Assessment, as per the Terms of
Reference
received
by
Miraflores
from
the
local
environmental
agency
Corporacion
Autonoma
Del
Risaralda (CARDER) in July
2017.
The Environmental Management
Plan (EMP) will be drafted once
the environmental impacts are
completed and finalised in late
2017.
Acid
rock
drainage
characterisation data obtained to
date
includes
ABA,
multi-
element
analyses,
and
mineralogical analyses. Column
testing was conducted for waste
rock and low-grade stockpile
materials.
Geochemical
evaluation of flotation tailings
and cyanide leach tailings was
also conducted. Preliminary
results indicate that the flotation
tailings and the majority of
waste rock are non-PAG (non-
potentially
acid
generating);
whereas
the
low-grade
stockpiles and cyanide leach
tailings are PAG (potentially
acid generating). Potential for
metal leaching is indicated in the
static test data, but further
evaluation is in progress to
acquire kinetic data for use in
geochemical modelling.
The current mine plan does not
include low grade stockpiling on
surface.
The
cyanide
leach
tailings
will
be
placed
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
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underground as part of the mine
backfilling requirements.
The
current
environmental
strategy includes the use of a
large fraction of the expected
tailings flow as underground
backfill material. The remaining
filtered tailings will be sent to
the tailings management facility
where they will be spread and
mechanically
compacted
to
achieve an unsaturated, dense
and stable tailings deposit. No
pond or water impoundment will
exist so there is no potential for
infiltration to native soils from
the tailings materials.
Laboratory testing completed by
ACZ
Laboratories
in
2012
resulted in Acid Generation
Potentials between 0 and 34 and
Acid Neutralization Potential
between 9 and 140. The
potentially
acid
generating
samples were identified as low
grade ore and cyanide leach
tailings. Sulphur contents range
from 0 to 1.4%. Paste pH ranges
from 7.7 to 9.4 with an average
of 8.6. It is Miraflores’ intention
to place the cyanide leach
tailings underground. Any low
grade material mined will either
be placed back underground or
be processed depending on the
grade of the material
The proposed filtered stacked
tailings storage facility will be
permitted as part of the EIA
application. Any waste dumps
permitted in the EIA will be
temporary dumps as the plan is
to use all of the waste mined for
planned backfilling operations in
the mine.
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

Miraflores has received a mine
development permit from the
CARDER for the development
of
2,000m
of
underground
exploration development which
includes 2 permanent waste
dumps and water discharge
licence (Resolution 1505 of 7
September 2017).
Infrastructure The existence of
appropriate
infrastructure:
availability of land for
plant development,
power, water,
transportation
(particularly for bulk
commodities), labour,
accommodation; or the
ease with which the
infrastructure can be
provided, or accessed.
The Project is a greenfield site,
the facilities that will be required
to be installed on site include:

Construction
accommodation facilities;

Kitchen
and
messing
facilities;

Main office;

First aid and ambulance
post;

Fuel Handling Facilities;

Mine change house;

Power supply (overhead
power line);

Stores and workshops; and
Sewage
treatment
facilities.

Access roads linking the
tailing
dam
and
construction camp with the
process plant;

Mining haul roads;

Mining and maintenance
workshops;

Warehouse and store;

Administration buildings;

Laboratory;

Reagents storage building;

Communications upgrade;

Security facilities;

Sewage
and
water
treatment facilities;

Emergency
response
facilities
including
fire
fighting
building
and
equipment; and

Dedicated overhead power
line.
DYNAMI
GRES
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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A new overhead power line will
be constructed for the process
plant,
mine,
water
supply,
tailings area, administration and
infrastructure.
Power
requirements will be as follows:

Process plant
4 x 2,250
kVA;

Mining 1 x 2,000 kVA;

Accommodation 1 x 300
kVA;

Tailings Area
1 x 50 kVA;
and

Water Supply
1 x 50 kVA.
Each area will have a dedicated
transformer and power supply
motor control centre.
Power Supply to the site will be
via a new overhead power line
from Quinchia. The incoming
supply voltage will be 33 kV,
with step-down transformers to
the site distribution voltage of
13.8 kV. A medium voltage
distribution board installed at the
incoming HV switchyard will
distribute power to the outgoing
feeders. The new power line will
be approximately 8km in length
and will be a dedicated line.
Water supply needs for the
Project (processing plant and
camp) have been assessed and
the water balance summary has
been carried out.
The processing plant will require
a total of 500 m3/day of water to
operate.
The accommodation camp will
require 30 m3/day of freshwater
which will be trucked to site
fromthelocalcommunity water
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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==> picture [217 x 36] intentionally omitted <==

supply.
The surplus water from mine
dewatering operations will be
used for construction works,
dust suppression and drilling
and/or will be sent to the water
treatment plant.
Miraflores have purchased 28 ha
of land and intend to purchase a
further 100ha as part of the
development plan. Suitable sites
for mine portals, haul roads,
processing
facilities
and
infrastructure to support those
operations has been identified,
geotechnical assessments of the
ground conditions made and
facility layouts completed as part
of the feasibility study.
The area is well serviced with
respect to roads. The site is
located approximately 7km from
the Panamerican highway that
runs along the Cauca River. The
road connecting the Panamerican
Highway with the town of
Quinchia passes within a few
kilometres of the site and is
currently being upgraded with 4
of the 7km of road now newly
sealed and with the remaining
portion of the road expected to
be
completed
prior
to
construction commencing. From
the newly sealed road access to
the site is via an unsealed road
which will require upgrading to
allow access for large bulk
loads. The feasibility capital
estimate allows for the upgrade
to this access road, the mine haul
roads
and
other
proposed
internal roads for the operation.
Sufficient
labour
is
readily
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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==> picture [217 x 36] intentionally omitted <==

available throughout the region
but specifically in Quinchia and
in
communities
immediately
surrounding
the
site.
Professional
and
experience
labour will be sourced from both
within and outside of Colombia.
The town of Quinchia and
surrounding
towns
have
an
adequate supply of suitable
accommodation for any labour
brought into the area. It is
Miraflores’s intention to employ
labour locally and where labour
is brought into the area from
outside,
the
Company
will
require that labour to relocate to
Quinchia.
Dynami Geo Consulting have
completed
preliminary
basic
engineering
on
the
tailings
storage facility (TSF). The dry
stack tailings storage facility will
receive
filtered
tailings
for
spreading and compaction. The
final TSF configuration allows
for 50% of final tailings to be
used
as
backfill
in
the
underground
mine
which
includes
100%
of
the
concentrate
leach
residue
tailings.
Cost The derivation of, or
assumptions made,
regarding projected
capital costs in the study.
The methodology used to
estimate operating costs.
Allowances made for the
content of deleterious
elements.
The source of exchange
rates used in the study.
Capital
and
operating
cost
estimates have been developed
for a mining operation treating
466,628 tonne per annum of
gold and silver bearing ore and
includes:

An underground operating
mine; and

A gold / silver processing
plant
recovering
these
metals, utilising a flow
sheet comprising crushing,
grinding,
gravity
separation,
conventional
AUSENCO
GRES
DYNAMI
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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Derivation of
transportation charges.
The basis for forecasting
or source of treatment
and refining charges,
penalties for failure to
meet specification, etc.
The allowances made for
royalties payable, both
Government and private
flotation,
cyanide
leach
circuit
for
the
concentrates, concentrate
leach residue washing with
Merrill Crowe for recovery
of the precious metals,
concentrate leach tailings
detoxification and filtration
for mine back fill, flotation
tailings filtration for mine
backfill
and
dry
stack
tailings
storage
and
support infrastructure and
utilities.
The capital and operating cost
estimates
produced
for
the
establishment of the mine is
considered to be an AACE class
3 estimate with a level of
accuracy
within
-10%
and
+15%. Costs are presented in
United States dollars (US$) and
are based on prices in effect
during the second quarter of
2017; no escalation factors have
been applied.
The exchange rate applied for
the operating and capital cost
estimates are:

US$1.00
=
A$0.80
(Australian Dollar);

US$1.00 = €0.85 (Euro);
and

US$1.00
=
3,000
COP
(Colombian Pesos).
Transportation
charges
were
derived from an international
freight
forwarder
allocating
individual
equipment
and
fabricated
transport
charges
included overseas freight to port
of
Buenaventura
where
applicable and in country freight
from port/ fabrication shop to
site.
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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==> picture [217 x 36] intentionally omitted <==

Refining
charges;
from
discussions
with
potential
refiners
and
from
previous
studies by SRK;
Gold Payability – 99.6%
Silver Payability – 99.0%
Refining,
transport
and
Insurance costs – US$4.50/
payable ounce.
Miraflores
will
determine
quality prior to completing an
offtake
agreement.
No
deleterious
elements
are
expected
based
on
the
metallurgical
testwork
completed.
The feasibility study delivered a
total estimated Initial Capital
cost of bringing the project into
production of US$71.8 million
excluding all contingency. This
cost is based upon an EPCM
approach whereby Miraflores
assumes
general
risk.
Contingencies of US$6.2 million
was estimated for the project
development.
Contingencies
have been estimated at 7.67% of
initial capital.
Sustaining capital requirements
associated with the mine and
owner cost of US$18.5 million
were included into the financial
model.
The Operating cost was based on
a high productivity operation,
this will demand a high efficient
environment
for
productivity
and
cost
controls.
No
contingency was embedded into
the operating cost.
During
the
first
year
of
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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operation, allowances for the
employment of experienced ex-
patriate
personnel
were
incorporated but it is expected
that this personnel will be
replaced progressively by local
workforce.
The main consumables and
labour wages were benchmarked
against other similar operations.
The feasibility study delivered
the following results for the
operating costs:

Mining cost of US$27.94
/processed t;

Processing
cost
of
20.54/processed t;

Tailing cost of US$0.62
/processed t; and

G&A cost of US$4.36 /
processed t.
The total site operating cost is
US$53.46 /processed t.
Government
Royalty
of
US$52.18 / payable ounce and
Refining charges, transport and
insurance of US$4.50 / payable
ounce.
Total Cash Costs of US$599 /
payable ounce.
The operating cost estimate did
not include Corporate overheads
and exploration activities.
The Miraflores Feasibility Study
assumed that the salvage value
of the remaining assets at the
end of the operating mine life
will off-set the closure and
remediation cost.
Revenue factors The derivation of, or
assumptions made
The
revenue
estimate
was
conducted
as
per
industry
Metminco
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
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==> picture [217 x 36] intentionally omitted <==

regarding revenue
factors including head
grade,
metal or commodity
price(s) exchange rates,
transportation and
treatment charges,
penalties,
net smelter returns, etc.
The derivation of
assumptions made of
metal or commodity
price(s), for the principal
metals, minerals and co-
products.
standards
taking
into
consideration the annual metal
production, commercial terms
and predicted metal prices.
The revenue estimate utilised the
following assumptions:

A gold and silver prices of
US$1,300/oz and US$18
/oz respectively (Within
the
range
of
industry
expectations and Broker
and Bank predictions. The
gold price used is close to
the moving 5 year average
gold price);

The
average
processed
head grade of 3.29 g/t and
2.56 g/t for gold and silver
respectively
(from
the
mine
and
processing
schedules);

Metallurgical recoveries of
92 % and 60 % for gold and
silver
production
respectively
(determined
from
metallurgical
testwork);

Metal payability factors of
96.6 % and 99.0 % for gold
and
silver
respectively
(from historical figures and
discussions with refiners);

Refinery and transport and
insurance
charges
of
US$4.50/ payable ounce
(based on previous study
estimates); and

Royalty of 4 % of the net
smelter return (based on
the Miraflores licence and
Existing Aporte contract
expiry (2019) prior to
commencement
of
production in late 2019
when the licence will revert
to the normal system of
concession contracts which
are subject to a 4% royalty
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

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only).
Market assessment The demand, supply and
stock situation for the
particular commodity,
consumption trends
and factors likely to
affect supply and demand
into the future.
A customer and
competitor analysis
along with the
identification of likely
market windows
for the product.
Price and volume
forecasts and the basis
for these forecasts.
For industrial minerals
the customer
specification, testing and
acceptance requirements
prior to a supply
contract.
Metminco has been actively
monitoring the market trends for
the gold industry. Modifying
factors such as gold price,
payable
metal
factors,
and
transport and refining costs are
within the ranges predicted by
the industry analysts.
Gold and silver are readily
traded around the world. These
markets are considered mature
and with reputable smelters and
refiners located throughout the
world.
Metminco
Economic The
inputs
to
the
economic
analysis
to
produce the net present
value (NPV) in the study,
the
source
and
confidence
of
these
economic
inputs
including
estimated
infation, discount rate,
etc.
NPV
ranges
and
sensitivity to variations in
the
significant
assumptions and inputs.
Metminco
developed
a
comprehensive financial model
for the economic evaluation of
the Miraflores Gold Project. The
financial model incorporates the
modifying factors delivered by
the Miraflores Feasibility Study.
The key assumptions utilised in
the financial model are listed as
follows:

Gold and silver prices of
US$1,300 /oz and US$18
/oz respectively;

Net smelter return as per
the Revenue estimate;

Operating and capital costs
as per industry standards;

Working
capital
and
Metminco
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

inventory management as
per industry standards;

Debt
and
financing
activities
are
excluded
from the net present cost
estimate;

All cash flows were treated
in real terms, therefore, no
inflation
or
escalation
factors were applied;

Discount Rate of 8%;

Site operating cost of US$ 53.46 /processed t; and

Income tax of 33%.
The Miraflores Feasibility Study
delivered a Net Present Value of
US$72.3 million after tax and an
Internal Rate of Return of 25%.
Social The status of agreements
with key stakeholders and
matters leading to social
licence
to
operate.
The Miraflores Gold Project is
located in the municipality of
Quinchía. The municipality
obtained its name from the
fortresses in Guadua that were
called "Quinchos". In 1966,
Quinchía became part of the
Risaralda Department.
The basic economy of the region
can be divided in two activities:
agricultural
and
mining
activities.
Quinchía
is
characterised
by
being
a
municipality with an agricultural
vocation,
with
small
land
divisions
and
with
mining
potential. However, there is a
lack of attention to land uses and
environmental regulations within
the agricultural sector.
For the primary information, the
results of the surveys undertaken
in 2013 were used. This
information will be updated
when the new social baseline
studyis completed at the end of
PORTEX
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

2017. For the study undertaken
in 2013, the direct influence area
of the project included the
villages of Miraflores, Guerrero,
Aguas Claras, Veracruz, Agua
Salada, La Esmeralda and Los
Medios.
According to the social base line
information
for
the
project
carried out in 2013, there were
289
families
in
the
direct
influence area, with a total
population of 1,152 inhabitants.
The village that has the largest
number
of
inhabitants
was
Miraflores with 410 inhabitants.
Community base line studies,
social impact assessments and
community development plans
will be complete by the end of
2017.
Other To the extent relevant,
the
impact
of
the
following on the project
and/or on the estimation
and classification of the
Ore Reserves:
Any identified material
naturally occurring risks.
The status of material
legal
agreements
and
marketing arrangements.
The
status
of
governmental agreements
and approvals critical to
the
viability
of
the
project,
such as mineral tenement
status, and government
and statutory approvals.
There must be reasonable
grounds to expect that all
The
main
risks
for
the
development of the Miraflores
Gold Project identified by the
feasibility study are described as
follows:

Social
disruptions
or
community unacceptance
of the project;

Gold price;

Increase of the predicted
capital or operating cost;

Not achieving the target
production
because
of
mining
or
processing
issues. E.g. reduced ore
grade, not achieving the
design
processing
throughput
or
gold
recovery, etc.

Existing Miraflores licence
contract is not renewed or
the licence does not revert
to the normal system of
concession contracts which

Metminco
CPs
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

necessary
Government
approvals
will
be
received
within
the
timeframes anticipated in
the
Pre-Feasibility
or
Feasibility
study.
Highlight and discuss the
materiality
of
any
unresolved matter that is
dependent on a third
party on which extraction
of
the
reserve
is
contingent.
are subject to a 4% royalty
only);

Geotechnical instability;

Unpredicted water levels in
the underground mine.
Other than the Aporte contract
for the Miraflores licence no
other material agreement is in
effect at this time.
The
Miraflores
Project
Environmental
Impact
Assessment Study (2013) did not
previously
have
an
official
Terms
of
Reference
(ToR),
instead,
the
baseline
data
collection
and
impact
assessment
development
was
progressed under a generic ToR
for open pit mining. This
generic ToR was issued by
National
Authority
of
Environmental
Licenses
(ANLA) in 2012. In July 2016,
a new ToR was issued by
ANLA. The Project submitted a
request to CARDER for an
official
ToR
for
the
new
underground Project concept.
The new ToR was obtained in
August 2017 and is being used
as the basis for the ongoing
environmental and social work.
The
Environmental
Impact
Assessment Study is expected to
be submitted in Q1 of 2018.
Plan de Trabajos y Obras or
(PTO); The PTO licence is
issued by the Ministry Of Mines
and Energy and must comply
with the Terms of Reference set
out by the ministry for non
seabed minerals and materials.
Allprojectsmust obtainan EIA
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

and PTO prior to commencing
development of the project.
Approvals are expected to take
between 4 and 6 months from
submission depending on the
requirement to provide further
data requested by the authorities.
Classification The
basis
for
the
classification of the Ore
Reserves
into
varying
confidence categories.
Whether
the
result
appropriately refects the
Competent Person’s view
of the deposit.
The
proportion
of
Probable Ore Reserves
that have been derived
from Measured Mineral
Resources
(if
any).
The Measured and Indicated
Mineral
Resources
were
classified
as
Proved
and
Probable
Ore
Reserves
respectively.
The Ore Reserve estimate of the
Miraflores Project is reported as
at the effective day of 18
October 2017.
The Ore Reserves estimate is
inclusive of Mineral
Resources.
The reference point of the Ore
Reserve is the run of mine
(ROM) stock pile area where the
material will be fed into the
process plant.
The
reserve
estimate
is
supported by the Miraflores
Feasibility
Study
complying
with the JORC Code standards.
The
Ore
Reserve
estimate
provided appropriately reflects
the Competent Person’s view of
the opportunity for Metminco to
develop the Miraflores Gold
Project based on the modifying
factors
derived
from
the
Feasibility Study work and the
updated
Mineral
Resource
model.
Thekeymodifyingfactors ofthe
AUSENCO
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

Ore Reserve
estimate
are
described as follows:
Reserves are based on a
gold price of US$1,200/oz
and
silver
price
of
US$18/oz;
An
underground
cut‐off
grade (CoG) of 1.53 g/t‐Au
was
applied
to
underground
resources
constrained
by
a
final
underground design;
Reserves
are
defined
within
an
underground
mine plan generated from
diluted Mineral Resources;
Underground
reserves
assume total dilution of
31% ;
Mining
and
processing
production schedules were
developed for assessing
the technical viability of
the project;
Revenue estimates were
developed as per industry
standards;
Operating and capital cost
estimates were executed
as per industry standards;
and
The
construction
and
production
schedules
formed the basis for a
financial model delivering a
positive outcome for the
economic evaluation.
As can be appreciated from the
information in Table 1, the Ore
Reserve
gold
cut-off
grade
utilised
a
gold
price,
site
operating
costs
and
gold
recovery values which have
small differences
from
the
figures used in the financial
model. Thisis due to the Ore
Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067
ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

Reserve cut-off grade being
estimated
for
the
stope
optimisation analysis prior to
development of the financial
model, being the first activity
executed during the Miraflores
Feasibility Study. The cut-off
grade delineated the material to
be included in the Ore Reserve
estimate
but
subsequent
activities
such
as
the
metallurgical test work, mine
and
processing
production
schedule and operating cost
estimate
provided
the
final
values for the modifying factors
which have been included into
the
financial
model.
The
Competent
Person
assessed
these small discrepancies and
concluded
that
no
material
impact on the final technical and
economic
outcome
of
the
Miraflores Feasibility Study is
evident.
Ore Reserves
Proved: 1.70Mt @ 2.75g/t Au
and 2.20g/t Ag
Probable: 2.62Mt @ 3.64g/t Au
and 3.13g/t Ag
Proved and Probable: 4.32Mt
@ 3.29g/t Au and 2.77g/t Ag
Audit or reviews The results of any audits
or
reviews
of
Ore
Reserve estimates.
No formal audits have been
conducted
on
the
Mineral
Reserve estimate
Metminco
Discussions
of
relative
accuracy/confidence
Where
appropriate
a
statement of the relative
accuracy and confidence
level in the Ore Reserve
estimate
using
an
approach or procedure
deemed appropriate by
the Competent Person.
For
example,
the
The
Competent
Person
has
recommended that further work
be
conducted
prior
to
commencement of construction
of the Miraflores Project on the
following topics:
Geotechnical stability analysis
for
the
underground
mine,
Metminco
CPs
Metminco Limited ABN 43 119 759 349
ASX Code: MNC.AX; AIM Code: MNC.L
Suite 401, 6 Help Street, Chatswood, NSW, 2067
Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857
www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

especially in the areas containing non-backfilled stopes;

application of statistical or geostatistical procedures to quantify the relative accuracy of the reserve within stated confidence limits, or, if such an approach is not deemed appropriate, a qualitative discussion of the factors which could affect the relative accuracy and confidence of the estimate.

 Stope Backfilling sequence;  Develop a detailed mining construction schedule;  Understand the predicted underground water levels; and  Update the environmental and social costs as per the granted permit – still to be granted.

This further work may result in of the estimate. some changes to the modifying factors representing a high risk The statement should for the achievement of the specify whether it relates technical and economic outcome to global or local of the Miraflores Gold Project estimates, and, if local, delivered by the feasibility state the relevant study. tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the procedures used. Accuracy and confidence discussions should extend to specific discussions of any applied Modifying Factors that may have a material impact on Ore Reserve viability, or for which there are remaining areas of uncertainty at the current study stage. It is recognised that this may not be possible or appropriate in all circumstances. These statements of relative accuracy and confidence of the estimate should be compared with production data, where

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au

==> picture [217 x 36] intentionally omitted <==

available.

Metminco Limited ABN 43 119 759 349 Suite 401, 6 Help Street, Chatswood, NSW, 2067 ASX Code: MNC.AX; AIM Code: MNC.L Tel: +61 (0) 2 9460 1856; Fax: +61 (0) 2 9460 1857 www.metminco.com.au