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This blog was created to publish news on argentinean mining, thus complementing our website and presence in social networks. As all of our activities, it intends to connect the mining community in Argentina and provide a place to promote the activity in the world, developing business opportunities.

30 abr 2011

Mirasol signs exploration agreement with Pan American Silver for the Espejo Project, Argentina


VANCOUVER, April 27 /CNW/ - Mirasol Resources Ltd. (TSXV:MRZ; Frankfurt: M8R) is pleased to announce it has signed a Letter of Intent with Pan American Silver Corp. ("Pan American") to explore Mirasol's 100%-owned Espejo project, located in Santa Cruz Province, Patagonia, Argentina. Pan American is a leading silver producer and operates the adjacent Manantial Espejo silver-gold mine, which produced approximately 4.0 million ounces of silver in 2010. The Espejo property is located in the prolific Deseado Massif volcanic terrane of southern Argentina.

The Letter of Intent provides for a definitive joint venture agreement to be signed which gives Pan American the option to earn 51% interest in Espejo in exchange for US$4 million investment in exploration over four years, and certain cash payments. After earn-in, Pan American may increase its interest to 61% by producing a NI 43-101 compliant feasibility study. Mirasol may then elect to maintain a participatory 39% interest or permit Pan American to increase its interest to 70% by providing mine financing at commercial terms to Mirasol, at Mirasol's request. Pan American will manage the exploration program. The Letter of Intent is subject to satisfactory due diligence by Pan American.

The Espejo project hosts a number of discrete drill targets identified by Mirasol which occur on trend with the Manantial Espejo silver-gold vein system (see news releases dated January 16, 2007 and June 16 and June 28, 2008). Previous exploration conducted by Mirasol included detailed ground magnetic and gradient array IP geophysical surveys which identified multiple prospective chargeable structures located under shallow to modest depths of gravel cover. The agreement provides for Pan American to spend US$300,000 in exploration during the first year, with a total of US$200,000 on areas outside of Mirasol's exploration program during the first two years of the agreement.

About Mirasol Resources Ltd.

Mirasol is focused on the discovery, exploration and acquisition of high-potential precious metals deposits in the Americas, utilizing leading edge technology for strategic advantage. Mirasol currently holds 100% of the rights of eight active exploration properties and twelve early-stage precious metals prospects in Santa Cruz Province, in the Patagonian region of southern Argentina, identified through the Company's proprietary exploration. At the Joaquin silver-gold project, exploration is being funded and operated by Mirasol's joint venture partner Coeur d'Alene Mines. In addition, Mirasol holds 100% interest in the Virginia silver vein discovery in Argentina and the Rubi copper-gold porphyry target, strategically located in the El Salvador copper mining district, northern Chile. Mirasol operates through subsidiary companies in Argentina and Chile and is engaged in generative exploration in high-potential regions elsewhere in the Americas.

Quality Assurance/Quality Control:
Exploration at Mirasol's Projects is supervised by Stephen C. Nano, Vice President of Exploration; Timothy Heenan, Exploration Manager; and Paul Lhotka, Principal Geologist; all qualified persons under NI 43-101. All technical information for the Company's projects is obtained and reported under a formal quality assurance and quality control (QA/QC) program. Drill core, rock chip and stream sediment samples are collected under the supervision of Company geologists in accordance with standard industry practice. Samples are dispatched via commercial transport to an ISO 9001:2000-accredited laboratory in Mendoza, Argentina for analysis. Results are routinely examined by an independent geochemist to ensure laboratory performance meets required standards.

Assay results from subsurface drill core or RC drill samples may be higher, lower or similar to results obtained from surface samples.

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.

For further information:

Mary L. Little
President and CEO

Tel:(604) 602-9989; Fax:(604) 609-9946

Email: contact@mirasolresources.com
Website: www.mirasolresources.com


Soltera Mining Corp.: Explanation of the El Torno Eluvial Gold Sampling Results


JUJUY, ARGENTINA--(Marketwire - April 27, 2011) - Dr. Fabio Montanari, President and CEO of Soltera Mining Corp. (PINK SHEETS:SLTA)(FRANKFURT:SN7) (www.solteramining.com) wishes to offer further details regarding the results of the El Torno eluvial gold sampling program carried out in November 2010.

Given the level of concern expressed by shareholders and apparent misunderstanding resulting from our news release of April 21, Soltera management offers this follow up release which states explicitly the significance of the assay results in the context of the rest of the El Torno prospect.

The sampling program was designed specifically to test eluvial deposits composed of weathered bedrock that have been worked in the recent past by the mineral title owner who processed the material through a gravity processing plant located some 3 km from the sample area. Samples were split into six size fractions in the ALS laboratory and analyzed by a combination of fire assay, cyanide leaching and emission spectroscopy; detailed lab work that took the better part of three months to complete.

Soltera has now received all 392 analyses from the sampling program. The sampling area covered approximately 40 hectares (99 acres), including part of the current Exploitation Licence, which covers 30 hectares (74 acres). The results provide useful information on possible gold targets for further exploration work; however, the easily accessible eluvial (weathered) deposits, which were to be the feed material for immediate small-scale production, do not appear to contain sufficient gold to justify this short-term initiative. Any possible immediate gold exploitation from this specific area will likely require milling the hardrock.

The analytical results do show that traces of gold are widespread through both the surface eluvial material and the underlying bedrock, but values over 1 g/t are scarce and erratic. Specifically, approximately 95% of the 392 analyses showed trace gold, with six containing more than 1 g/t Au (with one sample showing 11 g/t) and the rest containing less than 0.1 g/t Au.

Given the above, the most likely locations for plant feed are within the large and strong geochemical anomalies discovered in 2008 that cover several hundred hectares of the Exploration Licence and which are different from the main gold-quartz vein system. A reconnaissance check on these areas will be part of the first stage of exploration of these major bedrock targets.

Soltera plans to focus ongoing exploration activities on the two major gold targets at El Torno: the large gold-bearing vein systems that cross the licence area; and the potential open-pit areas outlined by the 2008 geochemical surveys. Both have potential for several million ounces of gold and all indications to date are that a considerable proportion of the gold is free and can be recovered by ethical means.

Background of Sampled Area

The El Torno area contains three types of gold deposit; major gold-bearing vein systems, large potential open-pit areas, and relatively small 'eluvial' deposits which consist of surface weathered material derived from gold-bearing bedrock. The sampling aimed to provide information primarily on the eluvial material and, to a lesser extent, on the bedrock that hosts the larger-scale targets.

The eluvial material occurs in broad patches, usually 2 to 3 metres deep, distributed throughout the area. It is easily worked and, in fact, was extracted from one area by the mineral title owner until three years ago when he ceased operations due to ill health. The weathered gold-bearing material was dug by backhoe and transported some 3 kilometres to a simple gravity processing plant located just outside the El Torno title area.

Prior to the sampling there was no firm data on the tonnage or grade potential of the eluvial material, but there certainly appeared to be substantial tonnages suitable for processing. Small gold nuggets were recovered from the gravity plant operation and it seemed highly likely that considerable fine pure gold was lost in the recovery process.

Sampling Program Objectives

The main objectives of the sampling program were to:

* determine in broad terms the tonnage and gold content of eluvial material available for processing,
* determine the amounts of gold in different size fractions of the plant feed in order to find out how much fine gold was being lost and the best methods for its recovery, and
* provide information on the rock types underlying the eluvial material as a guide for the major vein and open-pit target exploration.

Sampling Program Details

Twenty trenches were dug on the exploitation licence area, covering around 40 hectares, and 77 samples sent for preparation and analysis. Of these, 44 were channel samples of eluvial material taken along the sides of the trenches and 33 were chip samples of the underlying bedrock exposed in the trenches.

The majority of the samples were sieved in the laboratory into six size fractions and the coarser fractions were analysed for gold by cyanidation which should extract all the oxidized gold in the sample, and by fire assay which analyses total gold. The coarsest fractions were also analysed for 32 elements by emission spectroscopy. The fine fractions were analysed by cyanidation alone. The main objective was to find out where the gold was concentrated so that the existing gravity processing plant recovery rate could be improved.

Sample Program Results

Although approximately 95% of the 392 analyses showed trace gold, only six contained more than 1 g/t Au (up to 11 g/t) and the rest mainly less than 0.1 g/t Au. The mean of all the samples (excluding the highest value of 11 g/t) is 0.12 g/t Au.

The sampling area covered approximately 40 hectares (98.8 acres), including part of the current Exploitation Licence which covers 30 hectares (74.1 acres). This location contains the thickest development of eluvium in the exploitation area, and a major objective was to establish in broad terms the volume of potential feed for the beneficiation plant. The analytical results show that traces of gold are widespread through both the surface eluvial material and the underlying bedrock, but values over 1 g/t are scarce and erratic. They indicate, in fact, that only very small tonnages of eluvial material in the test area would be suitable feed for the plant, perhaps a few thousand cubic metres.

However, the results provide some guidelines for locating suitable plant feed. We know that previous plant feed was taken from relatively close to the gold mineralised vein system within a strong geochemical gold anomaly and that it yielded visible gold in the plant concentrates. By contrast, the sampled area was outside any main geochemical gold anomaly except in the extreme southwest where Pit 20 showed 4.8 g/t (+180 mesh fraction) in a bedrock sample. In other words, any potential feed for the plant is likely to be from eluvial deposits located within strong geochemical anomalies.

Eluvium over the main mineralised vein system is often thin, but can be thicker over the main open-pit targets. We think that a reconnaissance check on the strong geochemical gold anomalies that cover several hundred hectares within the Exploration Licence's 7,900 hectares (19,513 acres) is warranted. This check can be carried out as part of the first phase of exploration work for the major vein and open-pit bedrock targets.

One unconnected but important point is that there is generally good correlation between the fire assay and cyanidation extraction data. This correlation indicates that the bulk of the gold in the samples analyzed was free gold.

Conclusions

From the above, we conclude that there is an insufficient tonnage of suitable plant feed in the current Exploitation License area, which covers 30 hectares (74.1 acres) out of a total exploration area of 7900 hectares (19,513 acres), to justify a commercial operation. However, there may be gold-bearing eluvial cover within the many strong geochemical gold anomalies and, although the eluvium is likely to be thin in places, these are worth checking out as part of the first stage of exploration for the major deposits.

We plan at this stage to focus our efforts on the main El Torno gold targets: the major gold-bearing vein systems that cross the licence area; and the potential large-scale open-pit areas outlined by the 2008 geochemical surveys. Both have potential for several million ounces of gold. Furthermore, all available evidence indicates that the bulk of the gold is free and can probably be recovered by simple gravitational methods. As part of this approach, we plan to verify and validate the historic drill data from Puma Minerals, Peñoles and CODELCO using a combination of geophysical surveys and drilling, and if verified, start to crush and mill the hardrock before processing it through our existing gravity concentration plant.

Safe Harbor Statement: Certain statements contained herein are "forward-looking" statements (as such term is defined in the Private Securities Reform Act of 1995). Because such statements include risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Information or opinions in this document are presented solely for informative purposes and are not intended nor should be construed as investment advice. We encourage you to carefully review the Company with your investment advisor and verify any information that is important to your investment decision.


Barrick Reports Q1 2011 Financial and Operating Results


TORONTO, ONTARIO--(Marketwire - April 27, 2011) - Barrick Gold Corporation (NYSE:ABX)(TSX:ABX) -

FIRST QUARTER REPORT 2011

Based on IFRS and expressed in US dollars

For a full explanation of results, the Financial Statements and Management Discussion & Analysis, please see the Company's website, www.barrick.com.

Highlights

Financial and Operating Results

* Q1 reported net earnings rose 22% to $1.0 billion ($1.00 per share) from $820 million in the prior year period. Q1 adjusted net earnings increased 32% to $1.0 billion ($1.01 per share)1 from $763 million ($0.78 per share) in Q1 2010, reflecting higher realized prices for both gold and copper and better than expected total gold cash costs. This results in an annualized return on equity of about 20%1. Operating cash flow increased 27% to $1.44 billion from $1.13 billion in the same prior year period.
* Q1 gold production of 1.96 million ounces at total cash costs of $437 per ounce and net cash costs of $308 per ounce1 was ahead of plan primarily as a result of higher production from the Cortez, Goldstrike and Veladero mines. The Company is on track to meet its 2011 guidance of 7.6-8.0 million ounces at total cash costs of $450-$480 per ounce or net cash costs of $340-$380 per ounce2, positioning Barrick as one of the lowest cost senior gold producers.
* Q1 gold cash margins also continued to benefit from higher gold prices and better than plan cash costs increasing 32% to $952 per ounce1 from $722 per ounce in Q1 2010 and net cash margins rose 32% to $1,081 per ounce1 from $821 per ounce in the prior year period. Copper cash margins increased 33% to $3.00 per pound from $2.25 per pound1 in the prior year period on higher copper prices. This significant margin expansion demonstrates the Company's exceptional leverage to metal prices.

Corporate Development

* On April 25, Barrick announced that it had entered into a support agreement with Equinox Minerals Limited ("Equinox") for Barrick to acquire, through an all-cash offer of C$8.15 per share, all of the issued and outstanding common shares of Equinox by way of a friendly take-over offer (the "Offer"). The acquisition of Equinox would add a high quality, long-life asset to the Company's portfolio, and is consistent with the strategy of increasing gold and copper reserves through exploration and acquisitions. The transaction is expected to be accretive to earnings and cash flow on a per share basis.

Increasing Gold and Copper Reserves through Exploration and Selective Acquisitions

* The 2011 exploration budget has been increased by over 50% from the prior year spend to $320-$340 million3 following successful programs in 2010 that replaced gold reserves and increased measured and indicated gold resources by 24% and inferred resources by 18%.

Investing in and Developing High Return Projects

* The recently expanded Cortez mine continued to perform strongly in Q1 with higher than expected production of 366,000 ounces at total cash costs of $220 per ounce.
* The Company continued to advance construction of the Pueblo Viejo and Pascua-Lama projects during the quarter. Once at full capacity, these two mines are anticipated to contribute about 1.4 million ounces of annual production at blended average total cash costs of about $150 per ounce4 at gold and silver prices of $1,100 per ounce and $16 per ounce, respectively.

Maximizing the Existing Value of Mines and Properties

* At the 75%-owned Turquoise Ridge operation in Nevada, a scoping study was recently completed on the potential to develop a large scale open pit, which could significantly increase annual production.
* At the Zaldívar copper mine in Chile, studies are advancing on the potential to significantly increase copper production by investing in a process to treat primary sulfide ore.
* At the Lagunas Norte mine in Peru, the Company is advancing the study of a sulfide project, which could add substantial ounces to the current life of mine plan and extend the mine life.

Continually Improve Corporate Social Responsibility (CSR) Practices

* Barrick has made significant progress on its two new CSR initiatives announced at the end of 2010. The Company expects to have an external CSR Advisory Board established by the end of 2011 and also has nominated an independent Director with a CSR focus for election to the Board of Directors at the Annual General Meeting.

FINANCIAL AND OPERATING RESULTS

Q1 production of 1.96 million ounces of gold at total cash costs of $437 per ounce and net cash costs of $308 per ounce was ahead of budget primarily due to strong performances from Cortez, Goldstrike and Veladero. The Company is on track to achieve its full year operating guidance of 7.6-8.0 million ounces at total cash costs of $450-$480 per ounce and net cash costs of $340-$380 per ounce, positioning Barrick as one of the lowest cost senior gold producers. Q1 gold cash margins increased 32% to $952 per ounce from $722 per ounce in Q1 2010 and net cash margins increased 32% to $1,081 per ounce from $821 per ounce in the same prior year period. First quarter copper cash margins increased 33% to $3.00 per pound from $2.25 per pound in the prior year period on higher copper prices. This significant margin expansion demonstrates the Company's exceptional leverage to metal prices.

Q1 adjusted net earnings rose 32% to $1.0 billion ($1.01 per share), reflecting higher realized prices for both gold and copper and better than expected total gold cash costs, compared to adjusted net earnings of $763 million ($0.78 per share) in the prior year period. Q1 adjusted net earnings translates to an annualized return on equity of about 20%. First quarter reported net earnings were $1.0 billion ($1.00 per share) before net adjustments of $3 million. Q1 operating cash flow increased 27% to $1.44 billion compared to $1.13 billion in the same period a year ago.

"First quarter operating results exceeded our expectations and combined with strong metal prices and good cost control, resulted in significant growth in earnings and operating cash flow," said Aaron Regent, Barrick's President and CEO. "The newly expanded Cortez mine made an outstanding contribution and is on track to deliver a full year of low cost production of over 1.3 million ounces in 2011. We look forward to adding new low cost production from Pueblo Viejo and Pascua-Lama as we target nine million ounces of annual gold production. In addition, the acquisition of Equinox would add another high quality, long-life asset to our portfolio. The transaction does not dilute our shareholders' gold exposure per share, and it enhances copper exposure and leverage per share in a strong copper price environment. Combined with our Zaldívar mine and Cerro Casale project in Chile, this acquisition would position Barrick with significant production growth potential in two of the most prolific copper-producing regions of the world."

The North America region performed ahead of plan in Q1, producing 0.86 million ounces at total cash costs of $396 per ounce primarily due to higher production from Cortez and Goldstrike. Cortez production of 0.37 million ounces at total cash costs of $220 per ounce in Q1 exceeded plan on higher than budgeted grades from Cortez Hills. In March, the federal Bureau of Land Management issued a Record of Decision approving the Supplementary Environmental Impact Statement for Cortez Hills effective March 15, 2011, which enabled the operation to immediately revert to its original scope.

The Goldstrike operation performed strongly in Q1, producing 0.29 million ounces at total cash costs of $461 per ounce on higher than expected grades from the open pit and underground mines. Full year 2011 production for the North America region is 3.30-3.46 million ounces at total cash costs of $425-$450 per ounce.

The South American business unit also performed ahead of plan, with production of 0.50 million ounces at total cash costs of $340 per ounce in Q1. The Veladero mine produced 0.27 million ounces at total cash costs of $312 per ounce in Q1 due to a higher than planned drawdown of leach pad inventory. The Lagunas Norte operation contributed 0.19 million ounces at total cash costs of $282 per ounce in line with expectations. In 2011, South America production is expected to be 1.80-1.935 million ounces at total cash costs of $350-$380 per ounce.

The Australia Pacific business unit produced 0.46 million ounces at total cash costs of $585 per ounce in Q1. The Porgera mine produced 0.13 million ounces at total cash costs of $476 per ounce. Production from Porgera was impacted by pit wall remediation activities and heavy rainfall which restricted access to the higher grade ore during the quarter. Australia Pacific is expected to produce 1.85-2.00 million ounces at total cash costs of $610-$635 per ounce in 2011.

Attributable production from African Barrick Gold plc in Q1 was 0.13 million ounces at total cash costs of $658 per ounce. Barrick's share of 2011 production is expected to be 0.515-0.560 million ounces at total cash costs of $590-$650 per ounce.

Q1 copper production of 75 million pounds at total cash costs of $1.25 per pound was in line with expectations. Barrick has secured contracts for essentially all of its sulfuric acid supply required in 2011 at prices well below the current market price. Utilizing option collar strategies, the Company has put in place floor protection at an average price of about $3.00 per pound on approximately 60% of the remaining expected 2011 production and can participate in upside up to an average ceiling price of about $4.89 per pound on approximately 70% of the expected remaining 2011 production5.

About 60% of the Barrick's consolidated production costs are denominated in US dollars. The largest single currency exposure for the Company is the Australian dollar/US dollar exchange rate. Barrick is 95% hedged on its expected remaining Australian operating and capital expenditures in 2011 at an effective average rate of $0.78 and has substantial coverage for the following three years at rates at or below $0.75.

The Company also has mitigated the impact of higher oil prices through the use of financial contracts and production from Barrick Energy such that a $10 change in WTI crude oil prices is only expected to impact 2011 total cash costs by about $1 per ounce. The Barrick Energy contribution, along with the financial contracts provides hedge protection for approximately 84% of the expected remaining 2011 fuel consumption. Beyond 2011, financial contracts provide substantial hedge coverage in 2012 and 2013 and production from Barrick Energy will continue to provide long term natural offsets to expected energy costs.

CORPORATE DEVELOPMENT

On April 25, Barrick announced that it had entered into a support agreement with Equinox for Barrick to acquire, through an all-cash offer, all of the issued and outstanding common shares of Equinox for C$8.15 per share, or a total of approximately C$7.3 billion.

The acquisition of Equinox would add a high quality, long-life asset to the Company's portfolio and is consistent with the strategy of increasing gold and copper reserves through exploration and acquisitions. The transaction is expected to be accretive to cash flow and earnings on a per share basis. It does not dilute Barrick shareholders' gold exposure per share, and it enhances copper exposure and leverage per share in a strong copper price environment. Combined with the Zaldívar mine and the Cerro Casale project in Chile, this acquisition would position Barrick with significant production growth potential in two of the most prolific copper-producing regions of the world.

The Offer commenced on April 26, 2011 and will be open for acceptance for a period of not less than 35 days from its commencement and will be conditional upon, among other things, valid acceptances of the Offer in respect of shares representing (together with shares owned by Barrick6) not less than 66 2/3% of the Equinox shares on a fully diluted basis. In addition, the Offer will be subject to certain customary conditions, including receipt of relevant regulatory approvals and the absence of a material adverse change with respect to Equinox.

INCREASING GOLD AND COPPER RESERVES THROUGH EXPLORATION AND SELECTIVE ACQUISITIONS

Exploration activities in 2011 are ramping up with some early indications of positive results in North and South America. The 2011 exploration budget has been increased by more than 50% to $320-$340 million from the prior year actual spend following a successful 2010 program that replaced gold reserves7 and increased measured and indicated gold resources by 24% and inferred resources by 18%7. The budget is weighted towards near-term resource additions and conversion at existing mines while still providing support for earlier stage exploration in operating districts and other emerging areas. North America is expected to be allocated about 43% of the total budget, the majority of which is targeted for Nevada. About 24% is expected to be spent in the Australia Pacific region. Approximately 15% is targeted for the South America region with the remainder divided between Africa and other emerging areas.

INVESTING IN AND DEVELOPING HIGH RETURN PROJECTS

Production of 9 million ounces of gold8 is targeted within the next five years and total cash costs are expected to benefit from low cost projects, primarily Pueblo Viejo and Pascua-Lama, as these mines come on stream. Once at full capacity, these two mines are expected to reduce Barrick's overall total cash costs by about 20% based on a market silver price of approximately $40 per ounce.

At the Pueblo Viejo project in the Dominican Republic, overall construction is 55% complete and about 80% of the pre-production capital budget of $3.3-$3.5 billion (100% basis) has been committed. The environmental permits for temporary power sources, necessary for commissioning to commence in Q4 2011, were secured during the quarter. First production is expected in the first quarter of 2012. Two of the four autoclaves have been brick-lined in preparation for operation. About 85% of the planned concrete has been poured, approximately 85% of the steel has been erected and more than 3.2 million tons of ore have been stockpiled. Work continues toward achieving key milestones including the connection of power to the site. Barrick's 60% share of annual gold production in the first full five years of operation is expected to average 625,000-675,000 ounces at total cash costs of $275-$300 per ounce9.

At the Pascua-Lama project in Chile and Argentina, work progressed on both sides of the border during the quarter. Over 45% of the pre-production capital budget of $3.3-$3.6 billion has been committed. First production continues to be expected in the first half of 2013. Earthworks are more than 65% complete, construction of the power transmission line is progressing and the new access road is expected to be available in the second quarter of 2011. In Argentina, the platforms for the ore stockpile and grinding areas are nearing completion, which will allow the first concrete to be poured for the process plant in Q2 2011. Occupancy of the construction camps in Chile and Argentina continues to ramp up with more than 3,200 housed on site. Preparations are underway to commence pre-strip mining in Q4 2011. Average annual gold production is expected to be 750,000–800,000 ounces in the first full five years of operation at low total cash costs of $20-$50 per ounce10 based on a silver price of $16 per ounce. Average annual silver production for the first full five years is expected to be about 35 million ounces. For every $1 per ounce increase in the silver price, total cash costs are expected to decrease by about $35 per ounce over this period.

At the Cerro Casale project in Chile, the preparation of necessary permitting documentation for the submission of the Environmental Impact Assessment is underway alongside discussions with the government and meetings with local communities and indigenous groups. Early indications suggest that the capital cost may be higher by about 20-25% from the previous estimate of $4.2 billion (100% basis), which is based on the feasibility study completed in 2009 and reflects the impact of a stronger Chilean peso, higher labor, commodity and other input costs. Barrick's 75% share of average annual production is anticipated to be about 750,000-825,000 ounces of gold and 170-190 million pounds of copper in the first full five years of operation at total cash costs of about $240-$260 per ounce11, also based on the feasibility study completed in 2009. An update on the project will be provided with the second quarter 2011 results release.

MAXIMIZING THE VALUE OF EXISTING MINES AND PROPERTIES

At the 75%-owned Turquoise Ridge operation in Nevada, there is the potential to develop a large scale open pit in order to mine the lower grade halo around the high grade underground ore. Based on a recently completed scoping study, an open pit operation that would operate concurrently with an underground mine could significantly increase annual production. Estimates are based on an acid autoclaving with CIL processing option at a rate of 15 Ktpd at the existing autoclave facility at Goldstrike12. A prefeasibility study is underway and is expected to be completed in 2012. Infill drilling of the lower grade halo has commenced and initial results are confirming expectations. The total budgeted spend in 2011 is just over $60 million (100% basis) and the work plan includes ongoing infill drilling and geotechnical drilling, metallurgical testing and process option trade-off studies as well as environmental baseline work to support future permitting efforts.

At the Zaldívar mine, a conceptual engineering study on the treatment of primary sulfide material has been completed which indicates copper production could potentially increase significantly with the addition of a 120-140 Ktpd concentrator13. A total of 68,000 meters of exploration drilling has been completed on the primary sulfide material, which sits below the current life of mine open pit. A prefeasibility study is expected to be completed in Q2 2012 along with an associated environmental baseline study followed by a feasibility study.

At the Lagunas Norte mine, the Company is advancing an opportunity to add substantial gold production which could extend the mine life by treating mineralized material from below the current final pit14. During 2010, the metallurgical process to treat sulfide and carbonaceous refractory material was defined. Work on the associated environmental, geotechnical and hydrology studies as well as infrastructure and the tailings impoundment definition will be initiated in June 2011. A scoping study is expected to be completed in the fourth quarter of 2011 followed by a prefeasibility study with detailed engineering.

CONTINUALLY IMPROVING CSR PRACTICES

Barrick has made significant progress on its two new CSR initiatives announced at the end of 2010. The Company expects to have an external CSR Advisory Board, which will provide independent advice on challenging CSR issues and encourage further innovation and leadership in this area, established by the end of 2011. Barrick has also nominated an independent Director with a CSR focus for election to its Board of Directors at the Annual General Meeting.

In recognition of all of the Company's performance, Barrick was listed on the Dow Jones Sustainability World Index for the third year in a row and is also the only Canadian mining company to be ranked one of the world's top 100 sustainable companies by NASDAQ.

Barrick's vision is to be the world's best gold company by finding, acquiring, developing and producing quality reserves in a safe, profitable and socially responsible manner. Barrick's shares are traded on the Toronto and New York stock exchanges.

1 Adjusted net earnings, return on equity, total cash costs, net cash costs, cash margins and net cash margins per ounce/pound are non-GAAP financial measures. See pages 45-51 of Barrick's First Quarter 2011 Report.

2 Based on an expected realized copper price of $3.75/lb.

3 One-third of 2011 exploration budget is estimated to be capitalized. Barrick's exploration programs are designed and conducted under the supervision of Robert Krcmarov, Senior Vice President, Global Exploration of Barrick. For information on the geology, exploration activities generally, and drilling and analysis procedures on Barrick's material properties, see Barrick's most recent Annual Information Form/Form 40-F on file with Canadian provincial securities regulatory authorities and the U.S. Securities and Exchange Commission.

4 Based on the estimated cumulative average annual production in the first full 5 years once both are at full capacity. Blended average total cash costs assume gold, silver, copper and oil price assumptions of $1,100/oz, $16/oz, $2.75/lb, $85/bbl and assuming a Chilean peso f/x rate of 500:1.

5 Excludes any production from the proposed acquisition of Equinox. The realized price on all expected 2011 production is anticipated to be negatively impacted by about $0.12/lb as a result of the net premium paid on option hedging strategies.

6 Barrick currently owns 18.2 million shares of Equinox, representing about 2% of its shares on a fully diluted basis.

7 Gold reserves and resources as at December 31, 2010 have been calculated using an assumed gold price of $1,000/oz and $1,200/oz, respectively.

8 The target of 9 Moz of annual production within 5 years reflects a current assessment of the expected production and timeline to complete and commission Barrick's projects currently in construction (Pueblo Viejo and Pascua-Lama) and the Company's current assessment of existing mine site opportunities, some of which are sensitive to metal price and various capital and input cost assumptions.

9 Based on gold price and oil price assumptions of $1,100/oz and $85/bbl, respectively.

10 Based on gold price, silver price and oil price assumptions of $1,100/oz, $16/oz, and $85/bbl respectively and assuming a Chilean peso f/x rate of 500:1.

11 Based on gold price, copper price and oil price assumptions of $1,100/oz, $2.75/lb and $85/bbl, respectively and a Chilean peso f/x rate of 500:1.

12 Based on an open pit cutoff assumption of 0.04 opt and gold price assumption of $975/oz for determination of the open pit shell and assuming an approximate 0.04 opt cut-off grade compared to the current underground cut-off grade of about 0.25 opt. The attributes are based on the most favorable case examined in the scoping study. There are significant elements of the case which need extensive further study and will begin to be considered in the prefeasibility stage currently in progress (e.g. all metallurgical test work, geotechnical evaluation, design of waste rock facilities). Significant optimization work will be required in prefeasibility stage to determine the most economical combination of open pit, underground mining and processing. Feasibility, permitting and construction are estimated to take approximately 8 years. Key permits and approvals needed include: Environmental Impact Statement, Plan of Operations Approval, Clean Water Act Section 404 Permitting, Mercury Control Permits, and Water Pollution Control Permit. Additional exploration is required to define additional mineral resources and it is uncertain whether Barrick will be able to define such mineral resources.

13 Based on a preliminary open pit cut-off grade of 0.26% Cu equivalent and metal price of $2.50/lb Cu to determine the pit shell. Additional studies are required to verify applicable geotechnical constraints, hydrology, metallurgical optimization, environmental baseline, and permitting requirements. Additional exploration is required to define additional mineral resources and it is uncertain whether Barrick will be able to define such mineral resources.

14 Based on an average 0.8 gpt gold equivalent cut-off grade and a gold price of $1000/oz to determine the pit shell for the expansion. Key next steps include definition of geotechnical constraints, overall water balance, material handling considerations, environmental baseline and permitting requirements. Additional exploration is required to define additional mineral resources and it is uncertain whether Barrick will be able to define such mineral resources.

CAUTIONARY STATEMENT ON FORWARD-LOOKING INFORMATION

Certain information contained in this First Quarter Report 2011, including any information as to our strategy, projects, plans or future financial or operating performance and other statements that express management's expectations or estimates of future performance, constitute "forward-looking statements". All statements, other than statements of historical fact, are forward-looking statements. The words "believe", "expect", "will", "anticipate", "contemplate", "target", "plan", "continue", "budget", "may", "intend", "estimate" and similar expressions identify forward-looking statements. Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable by management, are inherently subject to significant business, economic and competitive uncertainties and contingencies. The Company cautions the reader that such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual financial results, performance or achievements of Barrick to be materially different from the Company's estimated future results, performance or achievements expressed or implied by those forward-looking statements and the forward-looking statements are not guarantees of future performance.
These risks, uncertainties and other factors include, but are not limited to: the impact of global liquidity and credit availability on the timing of cash flows and the values of assets and liabilities based on projected future cash flows; changes in the worldwide price of gold, copper or certain other commodities (such as silver, fuel and electricity); fluctuations in currency markets; changes in U.S. dollar interest rates; risks arising from holding derivative instruments; inaccuracies or material omissions in Equinox's publicly available information or the failure by Equinox to disclose events or facts which may have occurred or which may affect the significance or accuracy of any such information; the ability of the Company to complete or successfully integrate an announced acquisition proposal; legislative, political or economic developments in the jurisdictions in which the Company carries on business, including Zambia and Saudi Arabia; operating or technical difficulties in connection with mining or development activities; employee relations; availability and costs associated with mining inputs and labor; the speculative nature of exploration and development, including the risks of obtaining necessary licenses and permits and diminishing quantities or grades of reserves; changes in costs and estimates associated with our projects; adverse changes in our credit rating, level of indebtedness and liquidity, contests over title to properties, particularly title to undeveloped properties; the organization of our previously held African gold operations under a separate listed entity; the risks involved in the exploration, development and mining business. Certain of these factors are discussed in greater detail in the Company's most recent Form 40-F/Annual Information Form on file with the U.S. Securities and Exchange Commission and Canadian provincial securities regulatory authorities.

Except as otherwise indicated, the information concerning Equinox contained in this First Quarter Report 2011 has been taken from or is based upon Equinox's and other publicly available documents and records on file with Canadian securities regulatory authorities and other public sources. Neither Barrick nor any of its directors or officers assumes any responsibility for the accuracy or completeness of such information, or for any failure by Equinox to disclose events or facts which may have occurred or which may affect the significance or accuracy of any such information, but which are unknown to Barrick.

The Company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by applicable law.

Orocobre Limited: ASX/TSX Announcement-Quarterly Report of Operations for the Period Ended 31 March 2011



Highlights: Salar de Olaroz lithium-potash project: - Lithium and potassium resource increased more than fourfold to 6.4 million tonnes of lithium carbonate equivalent and 19.3 million tonnes of potash (KCL) - Resources upgraded from inferred to measured and indicated categories - Attractively high lithium concentration of 690 mg/L and low, reduced magnesium to lithium ratio of 2.4 - Battery grade lithium carbonate produced from Salar de Olaroz brines - Salar de Olaroz Feasibility Study nearing completion with results due within the next few days Corporate: - A$37 million Australian and Canadian financing completed

BRISBANE, AUSTRALIA--(Marketwire - April 27, 2011) -

SALAR DE OLAROZ LITHIUM-POTASH PROJECT

During the quarter ended March 31, 2011 (the "Quarter") Orocobre Limited (TSX:ORL)(ASX:ORE) ("Orocobre" or the "Company") continued to make considerable progress on the feasibility study on the Company's flagship Olaroz Lithium-Potash Project (the "Olaroz Feasibility Study") located in Jujuy province in northern Argentina.

The Orocobre team focused on the execution of the many technical and governmental aspects of the project, while the Company's partner, Toyota Tsusho Corporation, focused on the sales and marketing assessment and the project financing plans for the project development.

INCREASED AND UPGRADED RESOURCE

Immediately after the end of the Quarter, the Company announced a substantially increased and upgraded resource estimate at its flagship Salar de Olaroz Lithium-Potash. This followed completion of a comprehensive resource definition drilling programme undertaken throughout 2010.

John Houston, independent hydrogeologist, estimated a measured and indicated resource of 1,752 million cubic metres of brine at 690 mg/L Lithium, 5,730 mg/L Potassium and 1,050 mg/L Boron which is equivalent to 6.4 million tonnes of lithium carbonate and 19.3 million tonnes of potash (potassium chloride) based on 5.32 tonnes of lithium carbonate being equivalent to 1 tonne of lithium and 1.91 tonnes of potash being equivalent to one tonne of potassium.

Details are given in the table below:






































The estimate extends to an average depth of 197 m and uses the company's property boundaries or a 1.1 gm/cc density cut-off at the surface to establish peripheral resource boundaries. No internal cut-off boundaries have been used because it was considered as inappropriate to use them in a fluid resource where extraction will cause mixing.

The weighted average modelled specific yield is 9.6%.

The drilling program also confirmed attractive brine chemistry with an average magnesium to lithium ratio of 2.4, reduced from the 2.8 previously reported, and a sulphate to lithium ratio of 25.

Further technical information is provided in the Company's announcement of 1 April 2011.

A Technical Report complying with Canadian Securities Administrators' National Instrument 43-101, with full details of the techniques used, the data obtained and the resource analysis will be filed on Sedar within 45 days of release of the announcement of 1 April 2011.

BATTERY GRADE LITHIUM CARBONATE PRODUCED FROM OLAROZ BRINES

In the quarter ended September 30, 2010, the first lithium carbonate product was produced at the Company's process development test work facilities at the Salar de Olaroz. The process used is a modification of the "Silver Peak" method used at Clayton Valley, Nevada since the late 1960's.

Work since then has focussed on optimising the process route to improve the purity of the product so that it can meet the high specifications required for the battery industry.

Soon after the end of the Quarter, the Company announced that it had achieved this objective and produced battery grade lithium carbonate from Salar de Olaroz brines.

Orocobre's analysis showed that the lithium carbonate is of greater than 99.9% purity(i) and of higher purity than the specifications for battery grade material sold by existing producers. This material was produced by refining a lower purity product previously produced at the company's facilities at Olaroz with recirculated brines. As such, the Company considers the material to be representative of what could be expected in commercial production.

This was a major milestone for both the project and for the Company's Olaroz Feasibility Study for which it was considered important to demonstrate the ability to produce "battery grade" lithium carbonate from the Company's process development facilities.

(i)In order to be consistent with the reporting of lithium carbonate purity
by other exploration companies, the figures presented here do not include
loss of ignition (LOI) or moisture content. In the lithium carbonate
produced by Orocobre, these specifications were also above the
specifications of battery grade material being sold by producers.

OLAROZ FEASIBILITY STUDY - SINCLAIR KNIGHT MERZ

During the Quarter, considerable progress was made by Sinclair Knight Merz, the engineers appointed to undertake engineering design and costing for the Olaroz Feasibility Study. By the end of the quarter, all initial engineering and costing work had been completed and the Company and its consultants were undertaking a review of the work. This process has now been completed and the results of the Olaroz Feasibility Study will be available with the next few days.

EXPLOITATION EIS APPROVED AND MODIFIED APPROVALS PROCESS

Early in the Quarter, the Company announced that it had received approval from the Jujuy provincial government of the Environmental Impact Statement for the development and exploitation of its Salar de Olaroz lithium-potash project.

The approval by the Provincial Director on Mines and Energy Resources was received following the recommendation by the Unit of Mining Environmental Management ("UGAMP") on 12 November, 2010. UGAMP is a body comprised of twelve members representing various government departments, stakeholder groups and local communities. The development recommendation was fully supported by the local community of Olaroz Chico and other regional community leaders. As part of the approval, the Company must comply with various monitoring obligations, provide additional information on its planned construction works as the project design is finalised, and keep the local communities informed about its activities.

Subsequent to the recommendation of UGAMP, the Company also signed an access and compensation agreement with the local community of Olaroz Chico.

On March 4, 2011, the provincial government of Jujuy issued a decree which declared lithium a strategic mineral resource and introduced a secondary approvals process for lithium projects in Jujuy Province. In addition to an EIS approval, exploration and exploitation level projects now require assessment by a Committee of Experts, and following a positive recommendation from this Committee, approval by the joint resolution of the Minister of Production and the Secretary General of the Provincial Government. Since the end of the Quarter, the committee has been established but has yet to commence deliberations.

As a result of the decree, additional approval is required for both the Salar de Olaroz lithium-potash project and the Salar de Cauchari lithium-potash project for which an exploration EIS has been submitted. This new process does not affect the Company's program at Salinas Grandes, which is predominantly located in Salta Province.

SALAR DE SALINAS GRANDES POTASSIUM-LITHIUM PROJECT (85%)

No exploration was undertaken during the Quarter as the ground conditions were not trafficable for heavy drilling equipment. However, equipment was mobilized soon after the end of the quarter and drilling has recommenced. Drilling results will be available during this quarter and the objective, subject to satisfactory results, is to be able to undertake an initial resource estimate by the end of the quarter.

CORPORATE

A$37 MILLION AUSTRALIAN AND CANADIAN FINANCING COMPLETED

During the Quarter the Company completed offerings in both Australia and Canada. In Australia, the offering was made to Australian institutional and sophisticated investors that subscribed for 4,673,000 ordinary shares at a purchase price of A$3.21 per share, for aggregate gross proceeds of approximately A$15 million. The Australian placement was lead managed by Patersons Securities Limited.

In Canada, the Company entered into a "Bought Deal" financing at the same time as the Australian placement. 6,959,000 ordinary shares (which included the exercise of the over-allotment option in respect of 709,000 ordinary shares), were issued at a price of C$3.20 per share for aggregate gross proceeds of approximately C$22 million. Cormark Securities Inc. and Dundee Securities Limited were the co-lead underwriters in a syndicate that included Canaccord Genuity Corp., CIBC World Markets Inc. and Byron Capital Markets Ltd. The Canadian shares were offered by way of a short form prospectus filed in all of the provinces of Canada (other than the Province of Quebec) pursuant to National Instrument 44-101 Short Form Prospectus Distributions and in the United States on a private placement basis pursuant to an exemption from the registration requirements of the United States Securities Act of 1933, as amended.

Paul Crawford, Company Secretary

About Orocobre Limited

Orocobre Limited is listed on the Australian Securities Exchange and Toronto Stock Exchange (TSX:ORL)(ASX:ORE) and is the leading lithium-potash developer in the lithium and potassium rich Puna region of Argentina.

For further information, please visit www.orocobre.com.

Technical Information

The resource model and updated brine resource estimation on the Salar de Olaroz described in this announcement and in the Company's announcement of 1 April 2011 was undertaken by John Houston who is a Chartered Geologist and a Fellow of the Geological Society of London. John Houston has sufficient relevant experience to qualify as a competent person as defined in the 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. He is also a "Qualified Person" as defined by Canadian Securities Administrators' National Instrument 43-101("NI 43-101"). John Houston consents to the inclusion in this announcement of this information in the form and context in which it appears.

Any other scientific or technical information in this report that relates to the Company's Olaroz, Salinas Grandes and Cauchari properties is based on information prepared by or under the supervision of Mr Richard Seville, who is a member of the Australian Institute of Mining and Metallurgy. Mr Seville is the Managing Director of Orocobre Limited and has sufficient experience which is relevant to the style of mineralization and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves', and as a "qualified person" under National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"). Mr Seville consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Additional information relating to the Company's projects is available in the technical reports entitled "Technical Report - Salar de Olaroz Project, Argentina" dated April 30, 2010 (the "Olaroz Report"), "Technical Report - Salinas Grandes Project" dated April 30, 2010 and "Technical Report - Salar de Cauchari Project, Argentina" dated April 30, 2010, respectively, which have each been prepared by John Houston, Consulting Hydrogeologist, together with, in the case of the Olaroz Report, Peter Ehren, Consulting Processing Engineer, in accordance with NI 43-101. Further information relating to the Company's Salar de Olaroz project is available in the Company's news release dated March 6, 2011 relating to the approvals process at the Salar de Olaroz project, and in the Company's news release dated April 1, 2011 relating to its updated resource estimate for the Salar de Olaroz project.

Caution Regarding Forward-Looking Information

This report contains "forward-looking information" within the meaning of applicable securities legislation. Forward-looking information may include, but is not limited to, the estimation and realization of mineral resources, costs and timing of development of the Company's projects, costs and timing of future exploration, timing and receipt of approvals, consents and permits under applicable legislation, results of future exploration and drilling and adequacy of financial resources.

Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from those expressed or implied by such forward-looking information, including but not limited to the risk that further funding may be required, but unavailable, for the ongoing development of the Company's projects; changes in government regulations, policies or legislation; fluctuations in commodity prices; the possibility that required permits may not be obtained; uncertainty in the estimation of mineral resources; general risks associated with the feasibility and development of each of the Company's projects; the risk that a definitive joint venture agreement with Toyota Tsusho Corporation may not be completed; as well as those factors disclosed in the Company's publicly filed documents.

The Company believes that the assumptions and expectations reflected in such forward-looking information are reasonable. Assumptions have been made regarding, among other things: the Company's ability to carry on its exploration and development activities, the timely receipt of required approvals, the prices of lithium and potash, the ability of the Company to operate in a safe, efficient and effective manner and the ability of the Company to obtain financing as and when required and on reasonable terms. Readers are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used.

There can be no assurance that forward-looking 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. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

ABN 31 112 589 910

Cascadero Copper Corp.: Las Burras Cu-Au Porphyry


Drill Program Starts on the Large-Scale Copper-Gold-Base Metal System

Salta Province North Western Argentina

VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 26, 2011) - Cascadero Copper's (TSX VENTURE:CCD) 50% owned subsidiary Salta Exploraciones SA (Salta) has initiated a 1,750 metre drill program consisting of five (5) 350-metre NQ boreholes. Las Burras is 100% owned by Salta and is one of four porphyry systems in the Pancho Arias Mineral District, which is located in the western portion of the of the Colama-Olacapato-El Toro (COT) northwest trending transverse fault zone. The COT is a major crustal suture that controls the location of several large mineral systems in north western Chile (Chuquicamata, El Laco) and in Argentina (Taca Taca, Oculto, Concordia, Pancho Arias, Incahuasi, Ojo Negro). The drill program is fully funded.

Work by Salta consisted of geological mapping, petrography, IP/Res/Mag geophysics, MMI geochemistry, 2,300 metres of surface trenching and over 420 assays. Compilation of the data layers strongly supports the presence of an underlying mineralized system.

The size of the system is approximately 1,600 metres east west by 2,000 metres north south. The IP data suggests the system is open at 500 metres below surface. The trenches outlined a large area of argillic alteration with good gold values, extensive fracturing and some secondary copper showings. Additionally, a significant zone of leached-cap alteration is present on the western portion of the property. This is the location of the first core hole, LB11-01, which is underway. The property was not subject to a prior drill program.

The property has exceptional infrastructure. The Argentine National Highway #51, the high-tension power line and the natural gas pipelines to northern Chile are within 15 kilometers south of the property. Importantly, the railway to the Pacific Ocean port of Antofagasta passes through the southern part of the claims. Antofagasta is about 625 kilometres by rail west of Las Burras.

Las Burras is also located in a similar geological setting as two other Argentine copper-gold porphyry deposits: Alumbrera is in production (850 million tonnes) and Agua Rica is in the feasibility stage (800 million tonnes). Both deposits are located about 225 kilometres to the south of Las Burras.

Las Burras occurs in the Diego de Almagro multiphase magmatic complex and Alumbrera and Agua Rica are in the Farallon Negro multiphase magmatic complex. All three systems are of similar geologic age, which is Middle to Upper Miocene. Alumbrera, Agua Rica and the Pancho Arias Mineral District are within a north-west trending high-potassium calc-alkaline belt. The Alumbrera magmatic host rocks are compositions of an andesite-dacite-rhyolite suite, while Las Burras is composed of a diorite-granodiorite-monzogranite suite.

The Company is pleased to have this property in its portfolio and believes it has potential to host a large-tonnage bulk mineable gold-silver base metal deposit.

This report was reviewed and the technical contents approved by John Camier, M.Sc., P.Geo who is the Qualified Person for some of the Company's Argentine properties.

ABOUT CASCADERO COPPER

Cascadero is an integrated prospecting and mineral exploration business with offices in North Vancouver, BC, Sudbury, Ontario and Salta City in the province of Salta, Argentina. The Company generates, acquires and explores mineral properties in these three areas. The Company has several copper-gold porphyry prospects in the Toodoggone region of British Columbia, volcanic and intrusive hosted gold properties in the Sudbury, Swayze and Timmins camps of Ontario and holds a 50% interest in a 46 property portfolio in north western Argentina. Exploration is currently active in Ontario and Argentina and exploration will commence in June, 2011 in BC.

Cascadero's commodity focus is gold, silver and copper hosted in large-scale mineral systems. In 2011 and 2012, Cascadero plans to drill test a total of four copper-gold porphyry systems. In addition, Salta intends to drill four large-scale sediment hosted gold and silver-rich polymetalic systems and two sediment hosted gold-silver showings.

Neither the TSX Venture Exchange nor its Regulation Service Provider accepts responsibility for the adequacy or accuracy of this release.

Brigadier Gold (BRG-TSXV) Completes First Phase of Diamond Drilling on the Incamayo Project in Northwest Argentina



TORONTO, ONTARIO--(Marketwire - April 26, 2011) - Brigadier Gold Limited (TSX VENTURE:BRG) -

Brigadier Gold Limited's drilling contractor, Falcon Drilling (Barbados) Succursal Argentina, has completed 1520 metres of NQ coring in 9 holes on the Incamayo project in northwest Argentina.

In 1997 Mansfield Minerals, in a joint venture with RTZ Mining (Rio Tinto), drilled 9 reverse circulation holes on the property to test for economic grade mineralization below several well-mineralized sections encountered in trenches excavated during the previous exploration season. The Mansfield discovery hole (CG97-07), which was located 600 metres to the northeast of other mineralized holes, was reported in Mansfield's November 14, 1997, news release on Stockwatch (www.stockwatch.com) and is available on Sedar (www.sedar.com).

Brigadier's initial hole - (CG11-01) - twinned CG97-07 and intersected mineralization over a 53 metre interval from 106.3 metres to 159.3 metres in depth that matches the intersection as described in the original Mansfield reverse circulation hole, including a 7.0 metre interval from 106.3 to 113.3 metres containing numerous intervals of massive to semi-massive sulphide veins. Below 160 metres disseminated sulphides occur to the end of the hole at 298.5 metres with an interval of sulphide breccia from 288.4 to 289.3 metres.

CG11-02 is located at the same collar as CG11-01 but was drilled at -45°. This core hole intersected a 58 metre variably mineralized interval from 95 metres depth but with less intense alteration.

CG11-08, located 25 metres northeast of CG11-01 and drilled at the same orientation, intersected similar alteration and mineralization before it was lost at 170.7 metres as the drill bit sheared off in the hole. Based on visual observation of drill core from CG11-01, CG11-02 and CG11-08 it appears that the alteration and mineralization are becoming increasingly intense with vertical depth.

As noted in Brigadier's February 8, 2011, news release on Stockwatch (www.stockwatch.com) and available on Sedar (www.sedar.com), a review of the 1997 drill program by Rio Tinto determined that many of the 6 drill holes on the southern part of the property were oriented incorrectly to test the mineralized zones exposed at surface. Mapping by Brigadier in November and December, 2010 confirmed this interpretation. Consequently holes CG11-03, 04 and 05, located 700 metres to the southwest of CG11-01; holes CG11-06 and 09, located 900 metres to the southwest of CG11-01; and CG11-07, located 1400 metres to the southwest of CG11-01 were orientated differently than the Mansfield holes drilled in 1997. All holes intersected multiple zones of alteration containing sulphides similar to those seen on surface.

Of note, a newly received petrographic report on material collected from the trench mineralization tested by CG11-07 describes the brecciated and silicified sandstone sample as "….part of a silver bearing epithermal quartz vein of the low-sulphidation type". This style of mineralization differs dramatically from the gold bearing quartz veins observed in trenches adjacent to CG11-01. The report supports the interpretation, as stated in Brigadier's news release of March 29, 2011, that differing styles of mineralization occur within the 4 to 5 km long alteration zone.

Assay results on the above holes are pending. All samples from the drill program have been shipped to the lab and assays will be reported once received.

The Incamayo Property is subject to an option agreement that enables Brigadier to earn a 70 per-cent interest in the property. The agreement is among Brigadier, SESA Holdings LLC (Nevada) and Salta Exploraciones SA, Republic of Argentina. Salta holds a 100% interest in the property. SESA Holdings LLC holds a 100% interest in Salta and SESA Holdings LLC is 50% owned by Cascadero Copper Corp of North Vancouver, BC.

Qualified person and quality assurance/quality control: Tom Carpenter, BSc, PGeo, of Discovery Consultants, and a qualified person as defined by National Instrument 43-101, has supervised the preparation of the scientific and technical information that forms the basis for this news release. Mr. Carpenter is not independent of Brigadier by virtue of being a holder of incentive stock options.

Brigadier's work programs are supervised by Mr. Carpenter, who is responsible for all aspects of the work, including the quality control/quality assurance program. On-site personnel at the project rigorously collect and track samples which are then sealed and shipped via bonded courier to the facilities of Acme Analytical Laboratories (Argentina) S.A. in Mendoza, Argentina, for sample preparation and to Acme in Vancouver, BC for analysis. Blank, standard and representative duplicate samples are forwarded to Acme as part of the sample stream for quality control purposes.

Acme's quality control system complies with International Standard ISO 9001:2000 requirements. Analytical accuracy and precision are monitored by the analyses of reagent blanks, reference material and replicate samples. Quality control is further assured by the use of international and in-house standards.

This press release may contain "forward-looking information" within the meaning of applicable Canadian securities legislation. All statements, other than statements of historical fact, included herein may be forward-looking information. Generally, forward-looking information may be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "proposed", "is expected", "budgets", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", "goal" or "believes", or variations of such words and phrases, or by the use of words or phrases which state that certain actions, events or results may, could, would, or might occur or be achieved. This forward-looking information reflects the Company's current beliefs and is based on information currently available to the Company and on assumptions the Company believes are reasonable. These assumptions include, but are not limited to, the actual results of exploration projects being equivalent to or better than estimated results in technical reports or prior exploration results, and future costs and expenses being based on historical costs and expenses. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forward-looking information. Such risks and other factors may include, but are not limited to: the early stage development of the Company and its projects; general business, economic, competitive, political and social uncertainties; commodity prices; the actual results of current exploration and development or operational activities; competition; changes in project parameters as plans continue to be refined; accidents and other risks inherent in the mining industry; lack of insurance; delay or failure to receive board or regulatory approvals; changes in legislation, including environmental legislation, affecting the Company; timing and availability of external financing on acceptable terms; conclusions of economic evaluations; and lack of qualified, skilled labor or loss of key individuals. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. Accordingly, readers should not place undue reliance on forward-looking information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

21 abr 2011

Minera Andes Announces Work Stoppage at the San Jose Mine


TORONTO, ONTARIO--(Marketwire - April 21, 2011) - Minera Andes Inc. (the "Company" or "Minera Andes") (TSX:MAI)(OTCBB:MNEAF) announces that it has been advised by Minera Santa Cruz SA ("MSC"), the operator of the San José Mine, that production at the mine has been suspended due to an illegal work stoppage initiated by the local union. The San José Mine is operated by MSC, which is owned 51% by Hochschild Mining plc and 49% by Minera Andes.

The Company will keep the market informed of developments as they occur.

This news release is submitted by James K. Duff, Chief Operating Officer of Minera Andes Inc.

About Minera Andes: Minera Andes is an exploration company exploring for gold, silver and copper in Argentina with three significant assets: A 49% interest in Minera Santa Cruz SA, owner of the San Jose Mine in close proximity to Goldcorp's Cerro Negro project; 100% ownership of the Los Azules copper deposit with an inferred mineral resource of 10.3 billion pounds of copper and an indicated resource of 2.2 billion pounds of copper; and, 100% ownership of a large portfolio of exploration properties in Santa Cruz province, Argentina, including properties bordering the Cerro Negro project in Santa Cruz Province. Exploration and infill drilling is currently underway at the Los Azules project. The Company had $31 million USD in cash as at February 7, 2011 with no bank debt. Rob McEwen, Chairman and CEO, owns 31% of the shares of the company. The Company announced on March 17, 2011, its intention to spin-out the Los Azules Copper Project into a new publicly traded company, subject to a number of approvals.

About Minera Santa Cruz: Minera Santa Cruz SA is a joint venture owned 51% by Hochschild Mining Argentina, a wholly owned subsidiary of Hochschild Mining plc, and 49% by Minera Andes S.A., a wholly owned subsidiary of the Corporation. The joint venture owns and operates the San José property.

About Hochschild Mining plc: Hochschild Mining plc is a leading precious metals company listed on the London Stock Exchange (HOCM.L / HOC LN) with a primary focus on the exploration, mining, processing and sale of silver and gold. Hochschild has over forty years of experience in the mining of precious metal epithermal vein deposits and currently operates four underground epithermal vein mines, three located in southern Peru, one in southern Argentina and one open pit mine in northern Mexico. Hochschild also has numerous long-term prospects throughout the Americas.

Reliability of Information: Minera Santa Cruz S.A., the owner of the San José mine, is responsible for and has supplied to the Company all reported results from the San José mine. This press release is based entirely on information provided to Minera Andes by Minera Santa Cruz S.A. (MSC). Minera Andes' joint venture partner, a subsidiary of Hochschild Mining plc, and its affiliates other than MSC do not accept responsibility for the use of project data or the adequacy or accuracy of this release. As the Company is not the operator of the San José mine, there can be no assurance that production information reported to the Company by MSC is accurate, the Company has not independently verified such information and readers are therefore cautioned regarding the extent to which they should rely upon such information.

Caution Concerning Forward-Looking Statements: This press release contains certain forward-looking statements and information. The forward-looking statements and information express, as at the date of this press release, the Company's plans, estimates, forecasts, projections, expectations or beliefs as to future events and results. Forward-looking statements involve a number of risks and uncertainties, and there can be no assurance that such statements will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements. Risks and uncertainties that could cause results or future events to differ materially from current expectations expressed or implied by the forward-looking statements include, but are not limited to, factors associated with fluctuations in the market price of precious metals, mining industry risks, risks associated with foreign operations, risks related to litigation, property title, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral resources and reserves and other risks.

Readers should not place undue reliance on forward-looking statements or information. The Company undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after the date hereof except as may be required by law. See the Company's Annual Information Form for additional information on risks, uncertainties and other factors relating to the forward-looking statements and information. All forward-looking statements and information made in this news release are qualified by this cautionary statement.

The TSX has not reviewed and does not accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by management.

Minera Andes Announces First Quarter 2011 San Jose Mine Production


TORONTO, ONTARIO--(Marketwire - April 20, 2011) - Minera Andes Inc. (the "Company" or "Minera Andes") (TSX:MAI)(OTCBB:MNEAF) announces production results from its 49% owned San José mine in Santa Cruz Province, Argentina. Overall production at the San José mine during the first quarter of 2011 was 1,522,207 ounces of silver and 21,412 ounces of gold, of which 49% is attributable to Minera Andes. Production cost information will be provided in conjunction with our first quarter 2011 financial results expected to be released mid-May.

Compared to the first quarter of 2010, first quarter 2011 silver production increased 85% and gold production increased 30%. Mill throughput increased 18% over that period due to higher daily production rates as a result of an increase in the number of high grade stoping areas available for mining, including the high grade Kospi vein. This improved access resulted in a higher average silver head grade mined, consistent with reserve grades, compared to the first quarter 2010. Higher recovery rates also contributed to the increased production.

Compared to the fourth quarter of 2010, first quarter 2011 silver production was 19% lower and gold production was 18% lower. The decrease in silver and gold production was primarily the result of lower mine production with tonnage down by 16% and slightly lower head grades for both silver and gold, partially offset by higher recovery rates. Tonnage in the first quarter of 2011 was lower than the fourth quarter of 2010 primarily as production was impacted by the seasonal effect of fewer production days in the first quarter relative to the fourth quarter of the year.

The difference in the amount of metal sold in the quarter compared to the amount produced was due to timing differences.



This news release is submitted by James K. Duff, Chief Operating Officer of Minera Andes Inc.

About Minera Andes: Minera Andes is an exploration company exploring for gold, silver and copper in Argentina with three significant assets: A 49% interest in Minera Santa Cruz SA, owner of the San Jose Mine in close proximity to Goldcorp's Cerro Negro project; 100% ownership of the Los Azules copper deposit with an inferred mineral resource of 10.3 billion pounds of copper and an indicated resource of 2.2 billion pounds of copper; and, 100% ownership of a large portfolio of exploration properties in Santa Cruz province, Argentina, including properties bordering the Cerro Negro project in Santa Cruz Province. Exploration and infill drilling is currently underway at the Los Azules project. The Company had $31 million USD in cash as at February 7, 2011 with no bank debt. Rob McEwen, Chairman and CEO, owns 31% of the shares of the company. The Company announced on March 17, 2011, its intention to spin-out the Los Azules Copper Project into a new publicly traded company, subject to a number of approvals.

About Minera Santa Cruz: Minera Santa Cruz SA is a joint venture owned 51% by Hochschild Mining Argentina, a wholly owned subsidiary of Hochschild Mining plc, and 49% by Minera Andes S.A., a wholly owned subsidiary of the Corporation. The joint venture owns and operates the San José property.

About Hochschild Mining plc: Hochschild Mining plc is a leading precious metals company listed on the London Stock Exchange (HOCM.L / HOC LN) with a primary focus on the exploration, mining, processing and sale of silver and gold. Hochschild has over forty years of experience in the mining of precious metal epithermal vein deposits and currently operates four underground epithermal vein mines, three located in southern Peru, one in southern Argentina and one open pit mine in northern Mexico. Hochschild also has numerous long-term prospects throughout the Americas.

Reliability of Information:Minera Santa Cruz S.A., the owner of the San José mine, is responsible for and has supplied to the Company all reported results from the San José mine. This press release is based entirely on information provided to Minera Andes by Minera Santa Cruz S.A. (MSC). Minera Andes' joint venture partner, a subsidiary of Hochschild Mining plc, and its affiliates other than MSC do not accept responsibility for the use of project data or the adequacy or accuracy of this release. As the Company is not the operator of the San José mine, there can be no assurance that production information reported to the Company by MSC is accurate, the Company has not independently verified such information and readers are therefore cautioned regarding the extent to which they should rely upon such information.

Caution Concerning Forward-Looking Statements: This press release contains certain forward-looking statements and information. The forward-looking statements and information express, as at the date of this press release, the Company's plans, estimates, forecasts, projections, expectations or beliefs as to future events and results. Forward-looking statements involve a number of risks and uncertainties, and there can be no assurance that such statements will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements. Risks and uncertainties that could cause results or future events to differ materially from current expectations expressed or implied by the forward-looking statements include, but are not limited to, factors associated with fluctuations in the market price of precious metals, mining industry risks, risks associated with foreign operations, risks related to litigation, property title, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral resources and reserves and other risks.

Readers should not place undue reliance on forward-looking statements or information. The Company undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after the date hereof except as may be required by law. See the Company's Annual Information Form for additional information on risks, uncertainties and other factors relating to the forward-looking statements and information. All forward-looking statements and information made in this news release are qualified by this cautionary statement.

The TSX has not reviewed and does not accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by management.

Extorre Gold Mines Limited: New High Grade Gold-Silver Discovery at Cerro Moro



VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 19, 2011) - Extorre Gold Mines Limited (TSX:XG)(NYSE Amex:XG)(FRANKFURT:E1R) ("Extorre" or the "Company") is pleased to announce high grade to bonanza grade gold-silver results from the first 3 of 21 diamond drill holes completed to date on a discovery named Zoe at Cerro Moro, Santa Cruz Province, Argentina. Visual inspection of the core, without the benefit of assays, suggests that drilling has just entered the mineralized zone and that mineralization continues at depth.

Assay highlights include:

MD1204 intersected 4.84 metres ("m") at 64.6 grams per tonne ("g/t") gold + 7,530 g/t silver (190.1 g/t gold equivalent*), including1.36 m at 227.3 g/t gold + 25,428 g/t silver (651.1 g/t gold equivalent*).

The Zoe discovery is situated on the Escondida structure, 2.5 kilometres (km) east of the last known significant Escondida mineralization (the Martina shoot). The target is interpreted to be an east-west dilation zone, some 2 km in strike length. The discovery is essentially "blind" from surface, with the shallowest high grade mineralization appearing at a vertical depth of 80 metres.

In all respects the mineralization appears to be typical of the known Escondida deposit to the west. Specifically, the silver mineral acanthite is observed in many of the drill cores, with five holes showing electrum (metallic gold-silver). Base metals and pyrite are accessory minerals.

At present two drill rigs are defining the discovery. One rig is performing 160 metre step outs, with the other drilling at 80 metre centres to quickly determine the size potential.

Mr. Mathew Williams, Extorre Exploration Manager, states, "We have made another blind discovery of spectacular mineralization. The surface expression of Zoe is an outcrop that assays only 0.34 g/t gold and 115 g/t silver. It demonstrates the value of persistence and commitment to a soundly based geological model. The dramatic increase in gold and silver grades in diamond drill hole MD1196, a 40 metre step-back of the discovery hole MD1191, coupled with the bonanza gold and silver grades encountered in MD1204, a 40 metre step-out, support our decision to concentrate 50% of our drill rigs and team on defining the Zoe discovery. Every effort will be made to ensure that this new discovery will be included in the revised resource scheduled for Q3 this year."

Significant drilling results from the Zoe Vein (at a 1.0 g/t gold equivalent* cut-off grade):



Two links are embedded in this news release – a location plan of the Zoe target (http://www.extorre.com/pdf/release/diagram_11.pdf) and a longitudinal section showing the drill hole array (http://www.extorre.com/pdf/release/diagram_12.pdf).

Quality Control and Assurance

Drill widths presented above are drill intersection widths and may not represent the true widths of mineralization.

Gold assay results presented above are preliminary with no cutting of high grades. All diamond drill core samples are split on regular metre intervals or on geological contacts and represent sawn half HQ-size core. Samples were prepared at the Acme Analytical Laboratories ("Acme Labs") preparation facility on-site at Cerro Moro (managed and staffed by Acme Labs), and assayed by fire assay (50 gram charge) at the Acme Labs laboratory in Chile, an ISO-9001:2000 certified laboratory.

Check assaying of all samples assaying greater than 1.0 g/t gold is completed by Acme Labs. Samples returning greater than 10 g/t gold and/or greater than 100 g/t silver are assayed using gravimetric analyses. Standard and blank samples are used throughout the sample sequence as checks for the diamond drilling reported in this release.

Assaying by the screen fire assay method has been implemented in conjunction with standard 50 gram fire assaying, for diamond drill cores that contain visible gold. The procedure for screen fire assaying involves crushing and sieving of a nominal 500 or 1,000 gram sample to a particle size of 100 microns. All material which does not pass through the 100 micron sieve is then assayed. Two fire assays are undertaken on the undersize material as a check on homogeneity. The total gold content is then calculated.

Matthew Williams, Extorre's Exploration Manager and a "qualified person" within the definition of that term in National Instrument 43-101, Standards of Disclosure for Mineral Projects, has supervised the preparation of the technical information contained in this news release.

About Extorre

Extorre is a Canadian public company that trades under the symbol "XG" on both the Toronto Stock Exchange and the NYSE-Amex Exchange. Extorre's assets comprise approximately $33 million in cash, the Cerro Morro and Don Sixto deposits, and a suite of very prospective mineral exploration properties in Argentina.

On April 19, 2010, Extorre announced a National Instrument 43-101 compliant mineral resource estimate for Cerro Moro:

Indicated Category: 357,000 oz. gold + 15.3 million oz. silver (612,000 oz. gold equivalent*), plus Inferred Category: 190,000 oz. gold + 12.0 million oz. silver (390,000 oz. gold equivalent*).

The 612,000 ounce gold equivalent* indicated resource, has an average grade of 32.3 g/t gold equivalent*, a grade considered exceptional by industry standards. The silver contribution is high, accounting for approximately 50% of the metal value. Additional inferred resources of 390,000 ounces gold equivalent* are also reported from Cerro Moro. A resource update is scheduled for July 2011.

On October 19, 2010 Extorre released the results of a preliminary economic assessment ("PEA") of the Cerro Moro Project. The PEA highlighted the robust economics of a future mine to produce an average of 133,500 gold equivalent* ounces annually during the first 5 years of operations. The cash cost per ounce (gold equivalent*) is estimated to be US$ 201 per ounce. Project CAPEX has been estimated at US$ 131 million. The project economics were calculated using gold and silver prices of US$950/ounce and US$16/ounce, respectively.

Extorre has 6 drills rigs operating, four on the Cerro Moro property and two on discovery drilling at the Cerro Puntudo project, situated immediately south of the Joaquin Silver Project owned by Coeur d'Alene Mines and Mirasol Resources.

You are invited to visit the Extorre web site at www.extorre.com.

EXTORRE GOLD MINES LIMITED

Eric Roth, President and CEO

Safe Harbour Statement – This news release contains "forward-looking information" and "forward-looking statements" (together, the "forward-looking statements") within the meaning of applicable securities laws and the United States Private Securities Litigation Reform Act of 1995, including our belief as to the extent and timing of its drilling programs and various studies, exploration results, the potential tonnage, grades and content of deposits, timing, establishment and extent of resources estimates, potential production from and viability of its properties, production costs and permitting submission and timing. These forward-looking statements are made as of the date of this news release. Readers are cautioned not to place undue reliance on forward-looking statements, as there can be no assurance that the future circumstances, outcomes or results anticipated in or implied by such forward-looking statements will occur or that plans, intentions or expectations upon which the forward-looking statements are based will occur. While we have based these forward-looking statements on our expectations about future events as at the date that such statements were prepared, the statements are not a guarantee that such future events will occur and are subject to risks, uncertainties, assumptions and other factors which could cause events or outcomes to differ materially from those expressed or implied by such forward-looking statements. Such factors and assumptions include, among others, the effects of general economic conditions, the price of gold and silver, changing foreign exchange rates and actions by government authorities, uncertainties associated with legal proceedings and negotiations and misjudgments in the course of preparing forward-looking information. In addition, there are known and unknown risk factors which could cause our actual results, performance or achievements to differ materially from any future results, performance or achievements expressed or implied by the forward-looking statements. Known risk factors include risks associated with project development; the need for additional financing; operational risks associated with mining and mineral processing; fluctuations in metal prices; title matters; uncertainties and risks related to carrying on business in foreign countries; environmental liability claims and insurance; reliance on key personnel; the potential for conflicts of interest among certain of our officers, directors or promoters with certain other projects; the absence of dividends; currency fluctuations; competition; dilution; the volatility of the our common share price and volume; tax consequences to U.S. investors; and other risks and uncertainties, including those relating to the Cerro Moro project and general risks associated with the mineral exploration and development industry described in our Annual Information Form for the year ended December 31, 2010 filed with the Canadian Securities Administrators and available at www.sedar.com. Although we have attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. We are under no obligation to update or alter any forward-looking statements except as required under applicable securities laws.

Cautionary Note to United States Investors - The information contained herein and incorporated by reference herein has been prepared in accordance with the requirements of Canadian securities laws, which differ from the requirements of United States securities laws. In particular, the term "resource" does not equate to the term "reserve". The Securities Exchange Commission's (the "SEC") disclosure standards normally do not permit the inclusion of information concerning "measured mineral resources", "indicated mineral resources" or "inferred mineral resources" or other descriptions of the amount of mineralization in mineral deposits that do not constitute "reserves" by SEC standards, unless such information is required to be disclosed by the law of the Company's jurisdiction of incorporation or of a jurisdiction in which its securities are traded. U.S. investors should also understand that "inferred mineral resources" have a great amount of uncertainty as to their existence and great uncertainty as to their economic and legal feasibility. Disclosure of "contained ounces" is permitted disclosure under Canadian regulations; however, the SEC normally only permits issuers to report mineralization that does not constitute "reserves" by SEC standards as in place tonnage and grade without reference to unit measures.

NEITHER THE TSX NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE