Malbex Resources Inc.

Malbex Resources Inc.

October 10, 2013 16:15 ET

Malbex Resources Inc. Announces Positive Preliminary Economic Assessement for Rojo Grande, Del Carmen Project, Argentina

TORONTO, ONTARIO--(Marketwired - Oct. 10, 2013) - Malbex Resources Inc. (TSX VENTURE:MBG) is pleased to announce the results of a Preliminary Economic Assessment ("PEA") for the Rojo Grande mineralization at its 100% owned Del Carmen Project in San Juan Province, Argentina. The PEA was prepared by Micon International Limited in accordance with the requirements of Canadian National Instrument 43-101 "Standards of Disclosure for Mineral Projects" ("NI 43-101"). The PEA indicates that the Del Carmen project could generate average annual heap leach gold production of 105,000 oz at $650/oz total cash cost after by-product credits. The results of the PEA indicate that the project may be economically viable at current gold prices. Highlights of the results of the PEA are as follows:


(All amounts in US dollars, Assumes $1400/oz gold price)

  • Projected average annual production of approximately 105,000 ounces of gold over an 8 year mine life (total 842,000 ounces gold and 3.8 million ounces of silver), at an estimated cash cost including royalties of $650 per ounce (oz) after by-product credits.
  • Pre-tax Net Present Value (NPV) of $166 million at $1,400 per oz gold and 7% discount rate, giving an Internal Rate of Return (IRR) of 17% and a payback period of about 4.7 years.
  • Estimated direct initial capital expenditure of $183 million plus approximately $73 million in indirects, EPCM, first fills and contingency costs.

The PEA is preliminary in nature; it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the preliminary economic assessment will be realized. The production schedules used in this study are inclusive of inferred classified mineral resources. Mineral resources that are not mineral reserves do not have demonstrated economic viability.

The PEA contemplates a conventional open pit mining operation with heap-leach gold recovery. Contract mining would be employed in the initial years of mining to pre-strip almost the entire pit ( strip ratio in first two years is 8.4:1 reducing to 1.2:1 in later years.). The mine plan would call for the extraction of 37.5 million tonnes of heap leach material at an average grade of 0.87 gram gold per tonne (gpt) yielding 842,000 ounces of recoverable gold.

The PEA is based on an updated inferred mineral resource estimate completed by Micon and incorporates all drilling performed at Rojo Grande to date (effective date April 9, 2013). The mineral resource estimate is comprised of material within a conceptual open pit based on a Whittle pit optimization.

Rojo Grande Deposit Inferred Mineral Resources
30.97 1.01 11.0 1,010,000 10,964,000

1) Mineral resources which are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.

(2) The quantity and grade of reported inferred mineral resources in this estimation are conceptual in nature and there has been insufficient exploration to define these inferred mineral resources as an indicated or measured mineral resource. It is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.

(3) The 0.3 g/t gold equivalent cut-off grade was derived from an assumed open pit/heap leach operation with recoveries of 70% for gold and 40% for silver, a mining cost of US$1.50/tonne for mineralized material and $1.40/tonne waste, process cost of US$3.50/tonne and general & administrative costs of US$2.50/tonne. The costs were derived from similar operations and the recoveries from initial metallurgical testwork. Assumed prices of $1,125/oz for gold and $20/oz for silver, based on 3-year trailing averages, were also employed.

The PEA is a preliminary estimate of the economic viability of the project that anticipates a number of important engineering and regulatory steps. Further study and work is required prior to making a production decision. The following tables summarize the results of the PEA:

Economic Sensitivity Summary
Pre-tax After Tax
(US$/oz) NPV8
($ million)
IRR (%) NPV8
($ million)
IRR (%)
1,200 41.7 9.6 (3.8) 6.7
1,300 103.8 13.3 37.3 9.5
1,400 165.9 16.7 77.9 12.0
1,500 228.0 20.0 118.4 14.5
1,600 290.1 23.2 159.0 16.8
Key Results Summary
Item Unit Value
Inferred Resource in PEA mine plan M t 37.462
Waste Tonnes M t 98.366
Life of Mine Stripping ratio W/O 2.63
Gold grade g/t Au 0.87
Silver grade g/t Ag 9.97
Gold Recovery to doré % 80
Silver Recovery to doré % 32
Payable gold production 000 oz 842
Pa Payable silver production 000 oz 3,806
Mine life (at full production) years 7.5
Base Case Gold Price $/oz 1,400
Base Case Silver Price $/oz 23.33
Net Revenue $ M 1,214
Site Operating Costs $ M 583
LOM Capital $ M 261
Net cash flow $ M 370
Taxation $ M 130
After tax cash flow $ M 240
Mine Plan

Oxide Heap Leach Waste

(millions t)
Gold (oz)
Gold (oz)
1 2.5 0.5 39,000 31,000 29.1 11.6
2 5.0 0.9 143,000 114,000 25.9 5.2
3 5.0 0.8 130,000 104,000 8.2 1.7
4 5.0 0.8 133,000 107,000 9.8 2.0
5 5.0 1.3 203,000 162,000 6.9 1.4
6 5.0 0.7 109,000 87,000 6.2 1.2
7 5.0 1.0 167,000 134,000 3.3 0.7
8 4.9 0.8 129,000 103,000 1.2 0.2

Property Location

The Del Carmen property is located wholly within Argentina. It is comprised of eleven contiguous mining concessions with a total area of 15,129 ha in the El Indio Gold Belt. The project is located in the Valle del Cura on the eastern flank of the Andes Cordillera at elevations between 3700 and 5200 masl. It is adjacent to the Chile/Argentina border approximately 280 km northwest of the provincial capital city of San Juan and can be reached by road in about 4 to 4.5 hours. San Juan is located some 90 to 120 minutes drive north of Mendoza, a city with an international airport serviced by multiple daily flights. Utilities and services are largely absent in the area except for the Veladero mine and Pascua-Lama advanced project which are serviced by a good all-weather, private gravel road. Limited cell phone coverage and medical services are available at Veladero and the mine generates its own electrical power on site. An ample supply of labour is to be found in the regional communities to the east of the project at lower elevations.

The concessions are controlled by the Instituto Provincial de Exploraciones y Explotaciones Mineras de San Juan (IPEEM), a provincial government mining entity responsible for holding title to certain of the province's mineral rights, and for soliciting and administering bids for exploration and mining licenses in these areas. Malbex San Juan S.A., an indirect subsidiary of Malbex Resources Inc., holds a 100% direct interest in the Del Carmen project through its exploration agreements with IPEEM.


Technical information related to the PEA contained in this news release has been reviewed and approved by Christopher Jacobs CEng MIMMM, an independent Qualified Person as defined by NI 43-101, and Micon's project manager for the PEA. The report titled "An Updated Mineral Resource Estimate and Preliminary Economic Assessment for the Rojo Grande Deposit at the Del Carmen Property, El Indio Gold Belt, San Juan Province, Argentina" dated October 9, 2013 is being prepared by Micon International Limited., a firm of independent mineral industry consultants based in Toronto, Canada. This report has been filed on SEDAR (

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION: This news release includes certain information that may constitute "forward-looking information" under applicable Canadian securities legislation. Forward-looking information includes, but is not limited to, statements about strategic plans, licence renewals and granting of concessions, spending commitments, future operations, results of exploration, anticipated financial results, future work programs, capital expenditures and objectives. Forward-looking information is necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties, and other factors which may cause the actual results and future events to differ materially from those expressed or implied by such forward-looking information, including the risks identified in the Company's annual information form under the heading "Risk Factors". There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information. Accordingly, readers should not place undue reliance on forward-looking information. All forward-looking information contained in this press release is given as of the date hereof and is based upon the opinions and estimates of management and information available to management as at the date hereof. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contact Information

  • Malbex Resources Inc.
    Joe Hamilton
    President and Chief Executive Officer
    (416) 628-0215