SGH

Aura Silver Resources Inc. (TSX VENTURE:AUU) ("Aura" or the "Company") is
pleased to announce that it has refined its gold and silver drill targets at its
100% owned Greyhound property using an Organo-Sulphur Geochemical ("OSG")
analysis based on mineral bacterial activity. This analysis was performed by
Activation Laboratories ("Actlabs") of Ancaster Ontario for Aura. In a previous
press release (see #11-16, dated December 13, 2011), Aura announced robust
results from Organic Soil Gas Hydrocarbon ("SGH") analyses which identified one
gold zone and two silver zones at Greyhound. Each is a specific drill target
located to the east and south east of Aura Lake, the area where spectacular
grades in gold and silver boulders have been discovered. This area has not been
previously drilled by Aura. The Organic SGH analysis, which identifies
hydrocarbons as decomposition products from bacterial activity specific to gold
and to silver mineralization, has proven in past studies to identify
mineralization directly below where hydrocarbon-enriched soil samples have been
collected. This has been the case even if the soil or rock samples had undergone
surficial transport from above the mineral source.


Organic SGH - Previous Results

The results of the Organic SGH analysis identified a possible source target for
both the high-grade surface samples of gold and the silver. The following map
(see Figure 1: http://media3.marketwire.com/docs/Figure1PR.pdf ) of the Aura
Lake area of Aura's Greyhound property shows the drill targets for gold and
silver as delineated by the oval figures which surround the strongest showings
of Organic SGH. 


Furthermore, the drill targets identified were rated by Actlabs with their
highest priority in confidence in comparison to the response from other known
deposits. The gold zone to the north east was given the second highest rating by
Actlabs, the north east silver zone the highest rating and the southeast silver
zone a similarly high rating. These are highly prospective ratings as supported
by the organic SGH results. 


The Organic SGH analysis has a history of outstanding performance in the past in
terms of locating mineralization in both blind tests and in practice. Organic
SGH and its interpretation have been refined for over 15 years. Two recent
studies show the effectiveness of the Organic SGH technology: 




i.  Dr. Richard Dyer (April 2012): McFaulds Lake, Ring of Fire area at
    McFaulds Lake (http://www.actlabs.com/files/Richard_Dyer-OGS-
    SGH_delineates_Ring_of_Fire_camp_with_Lake_Sediments.pdf); 



and



ii. Dave Heberlein (2010): Mt. Milligan site in B.C. for Geoscience BC
    (http://www.geosciencebc.com/i/project_data/GBC_Report2010-
    8/GBC_Report2010-8_Report.pdf). 



In this study, Dr. Heberlein conducted over twenty different geochemical tests
on the Mt. Milligan project. Actlabs' organic SGH test was one of two that
accurately located the Mt. Milligan deposit directly below the soils tested for
organic SGH compounds


Organo-Sulphur Geochemical Update

Organo-Sulphur Geochemical analysis detects specific sulphur based hydrocarbons
related to the sulphur component of ore-deposit minerals. This analysis
compliments and refines the previous SGH study, by defining these targets to a
point where the targets now have the highest priority rating. According to
Actlabs, the highest level rating achieved by the three targets indicates that
"the SGH classes most important to describing a gold-related (or silver-related)
hydrocarbon signature are all present and consistently vector with the same
location with well-defined anomalies". 


The following maps indicate:

1. The now well-defined gold zone to the north as compared to the originally
defined targets (see Figure 2: http://media3.marketwire.com/docs/Figure2PR.pdf);



2. The north east silver zone which may indicate a shallow structure (see Figure
3: http://media3.marketwire.com/docs/Figure3-4PR.pdf); and, 


3. The south east silver structure which may indicate a deeper structure (see
Figure 4: http://media3.marketwire.com/docs/Figure3-4PR.pdf).


This analysis suggests that the two potentially shallow targets, centered at
less than 300 metres below surface, represent both the gold zone and the north
east silver zone. The south east silver zone is predicted by the latest 3D-SGH
interpretation process to be 500 metres or more below surface. The Company
believes the combined results of the Organic SGH and the Organo-Sulphur
geochemical analysis of Greyhound explains a number of aspects related to our
exploration to date:


This recent high-tech analytical approach to exploration results defines:

1. The sources of the high-grade surface samples to the east and southeast of
Aura Lake may have been found. 


2. The identification of two or more separate mineralized systems explains why
we have located silver rich only and gold only rocks.


These high grade surface samples are delineated in Aura's current corporate
presentation available at:
http://www.aurasilver.com/i/pdf/CorporatePresentation-March2012.pdf


Drilling of these targets is being planned for the 2012 field season.

Paul Pitman, P. Geo. is Aura's qualified person (as defined by National
Instrument 43-101) and has reviewed and approved the scientific and technical
information in this press release. 


About Aura 

Aura is a TSX Venture listed company engaged in the acquisition, exploration and
development of precious metal prospects in Canada (100% owned Greyhound project)
and in Oaxaca, Mexico (70% owned East Taviche and Alma Delia projects). Aura has
97,680,844 common shares outstanding. 


FORWARD-LOOKING STATEMENTS:

This press release may contain forward looking statements that are made as of
the date hereof and are based on current expectations, forecasts and assumptions
which involve risks and uncertainties associated with our business including the
uncertainty as to whether further exploration will result in the target(s) being
delineated as a mineral resource, capital expenditures, operating costs, mineral
resources, recovery rates, grades and prices, estimated goals, expansion and
growth of the business and operations, the private placement financing
activities of the Company, plans and references to the Company's future
successes with its business and the economic environment in which the business
operates. All such statements are made pursuant to the 'safe harbour' provisions
of, and are intended to be forward-looking statements under applicable Canadian
securities legislation. Any statements contained herein that are statements of
historical facts may be deemed to be forward-looking statements. By their
nature, forward-looking statements require us to make assumptions and are
subject to inherent risks and uncertainties. We caution readers of this news
release not to place undue reliance on our forward-looking statements as a
number of factors could cause actual results or conditions to differ materially
from current expectations. Please refer to the risks set forth in the Company's
most recent annual MD&A and the Company's continuous disclosure documents that
can be found on SEDAR at www.sedar.com. Aura Silver does not intend, and
disclaims any obligation, except as required by law, to update or revise any
forward-looking statements whether as a result of new information, future events
or otherwise.

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