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Curis updates metallurgical recovery test work at Florence Copper


Curis updates metallurgical recovery test work at Florence Copper

VANCOUVER, Jan. 8, 2013 /CNW/ - Curis Resources Ltd. (TSX: CUV) ("Curis" or the "Company") announces results for recently completed ongoing large scale metallurgical test work in advance of finalization of the prefeasibility study (PFS) on its 100% owned Florence Copper project in Arizona.

Highlights of the In-Situ Recovery ("ISR") test results shown in Table 1 include the following:


    --  ISR tests 17-22 have now been completed with copper extraction
        ranging from 51 percent to 90 percent. All tests in this most
        recent series were run as previously described in the Curis
        press release dated October 11, 2012.
    --  When all the copper extraction results are incorporated with
        recent sweep efficiency modelling, preliminary indications are
        that overall copper recovery of approximately 70 percent will
        be achieved from a typical mineralized block.

"The results from this final set of metallurgical test work clearly 
demonstrate the potential for improved copper recovery rates at Florence 
Copper," stated Dan Johnson, Vice President of Technical Services and 
Environment with Curis. "Our objective now is to integrate these results into 
a new financial and engineering model for Florence Copper that is scheduled 
for release in Q1 2013 in the form of a pre-feasibility study (PFS)."

"Improved copper recoveries, combined with a revised mineral extraction plan 
and updated capital and operating cost estimates, are expected to further 
confirm Florence Copper as having the potential to be one the lowest cost near 
term copper producers in the world," continued Johnson. "We are very happy 
with the results of our work over the past year in refining our development 
plans and confirming our engineering assumptions for Florence Copper."

Background

Averaging 69 percent copper extraction, the ISR test 17-22 series results 
compare favorably with the 70 percent average extraction rates previously 
reported for boxes within the ISR test 1-16 series (see Curis Press release on 
October 11, 2012). The economic model presented in the September 2010, 
Preliminary Economic Assessment (PEA) for the Florence Copper project utilized 
an average total copper recovery of 49 percent.

The next step in the metallurgical testing program is to incorporate these 
results into an overall assessment of predicted ultimate copper recoveries for 
inclusion in the prefeasibility study which is expected to be released in Q1 
2013.

The goal of the ongoing ISR test program has been to represent a cross-section 
through a typical mineralized block in the deposit, and to simulate in-situ 
treatment of the Florence Copper ore body by allowing recovery solutions to 
flow horizontally through intact pieces of drill core assembled as a 
mineralized block using a specially designed laboratory apparatus. This 
successful physical simulation and test program was designed by Curis and 
Metcon Laboratories of Tucson, Arizona, with oversight and direction from 
acknowledged world metallurgical expert, Dr. Terry McNulty.

Dr. McNulty stated that "I continue to believe that the laboratory technique 
being employed by Metcon is much more realistic than earlier methods of 
projecting non-sulfide copper extraction by in-situ leaching. Also, ongoing 
mineralogical characterization of leached residues is improving our 
understanding of the behavior of host rock constituents and copper minerals 
during these tests."

Metallurgical testing to confirm and improve on historical copper recovery 
estimates for the Florence Copper property began in June 2011 at Metcon. 
Bottle roll and laboratory scale ISR test results on 16 initial samples from a 
2011 core drilling program were reported in previous Curis press releases 
dated February 23 and October 11, 2012. The results compared favorably to work 
completed by BHP Copper ("BHP") in the mid-1990s, as summarized in Curis' 
September 2010 PEA. Laboratory scale ISR test results for six additional 
samples from the 2011 core drilling program have now been received and are 
summarized here.

Detailed In-Situ Recovery Test Results

The following Table 1 provides details from ISR tests 17-22.

Table 1: ISR Laboratory Test Results For Boxes 17-22

Test     Calculated                 Cumulative        
 Number  Head Assay                 Extraction
           (% Cu)                      (%Cu)

 Box 17       0.44                      62.58

 Box 18       0.25                      51.26

 Box 19       0.36                      70.45

 Box 20       0.44                      57.96

 Box 21       0.59                      90.46

 Box 22       0.49                      80.88

The metallurgical test program is being supervised by Dr. Terry McNulty, P.E., 
of T. P. McNulty and Associates, Inc. of Tucson, Arizona who is a Qualified 
Person (QP) as defined by NI43-101 and has reviewed this disclosure.

About Curis

Curis Resources Ltd. is a mineral development company associated with Hunter 
Dickinson Inc., a diversified global mining company with a 25-year history of 
mineral development success. Curis is focused on the acquisition, development 
and operation of high-quality next-generation copper properties in progressive 
jurisdictions around the world. It is currently focused on advancing its 100% 
owned Florence Copper project in Arizona, USA to production.

For more information about Florence Copper, to sign up for news and updates 
and learn more about the project's projected economic benefits to the local 
community, please go to www.florencecopper.com.

For further details on the Company, please visit www.curisresources.com or 
contact Susie Bell, Manager of Investor Relations, at (604) 684-6365 or within 
North America at 1-800-667-2114.

Michael McPhie
President & CEO 

Susie Bell Manager, Investor Relations Tel: 604-684-6365 
Email: Susiebell@hdimining.com

SOURCE: Curis Resources Ltd.

To view this news release in HTML formatting, please use the following URL: 
http://www.newswire.ca/en/releases/archive/January2013/08/c4411.html

CO: Curis Resources Ltd.
ST: British Columbia
NI: MNG FIELD 

-0- Jan/08/2013 13:30 GMT

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