ALR

Alder Resources Ltd. ("Alder" or the "Company") (TSX VENTURE:ALR) is pleased to
announce results for 26 tailing samples collected at Rosita, the Company's
flagship copper-gold-silver property in northeast Nicaragua. This recent
sampling is the continuation of an exploration plan for the Rosita property that
combines drill testing of new targets, verification of historic mineralized
drill intercepts, a resource estimate of historic stockpiles, trenching and the
development of new drill targets. It has always been Alder management's belief
that a significant amount of value for Alder shareholders can be developed
through this comprehensive approach to exploration on the Rosita Property.


The tailings samples were collected from 13 sites, at 100 metre intervals, along
a 1200 metre long north-south line crossing the tailings field (see attached
Figure 1). Two samples were taken at each locality, an upper sample collected to
a depth of 0.7 metres, and a lower sample collected from 0.7 metre to 1.5 metre
depths. The upper samples average 0.16% copper "Cu", 0.39 grams per tonne gold
"g/t Au" and 17.7 grams per tones silver (g/t "Ag"), and lower samples 0.26% Cu,
0.47 g/t Au and 12.2 g/t Ag. The average grade for all 26 samples is 0.21% Cu,
0.43 g/t Au and 14.9 g/t Ag. Results are summarized in Table 1 at the end of
this release. None of the samples penetrated the entire thickness of the
tailings field, estimated to average more than 2.5 metres. With newly acquired
hand augers, capable of penetrating to depths of 3 to 4 metres, the company
plans to sample the tailings on a 100 metre grid over its 1.1 square kilometre
area. Initial specific gravity estimates show the tailings material averages
about 1.6 g/cc3.


The Rosita Mine operated from 1959 to 1975 from two open pits: Santa Rita and
R-13. A total of 5.4 million tonnes averaging 2.06% Cu, 0.93 g/t Au and 15.08
g/t Ag were mined during the mine life. Mill recovery during the early years,
when oxide copper was mined, was 70% for total copper and 91% for acid soluble
copper with head grades of 4.26% Cu and 3.28% Cu, respectively. Tailings grades
were 1.27% Cu for total copper and 0.29% Cu for acid soluble copper. Overall,
recoveries in the 1970s, when primary sulphides were mined, ranged from 50% for
low grade material to 80% for higher grades. Production records indicate that
gold and silver were not systematically extracted during the first 6 years of
production. Results from Alder's preliminary sampling suggest there is a
significant increase in copper and gold at depth, which was expected based on
early mine records.


Joe Arengi, Alder's President and CEO, states "These sampling efforts are
preliminary in nature and were intended to characterize the Rosita tailings. We
believe there is a considerable amount of copper, gold and silver in the
tailings, particularly in the lower portion of the pile. We are very pleased
with these results and have initiated a detailed sampling program that will
delineate the grade and extent of the copper, gold and silver mineralization." 


The Rosita Project

The Rosita project is located seven kilometres north of the Primavera prospect,
where Calibre Mining Corp. ("Calibre") and B2Gold Corp. recently announced the
discovery of significant porphyry style Au-Cu mineralization, including 261.7m
grading 0.78 g/t Au and 0.30% Cu in a diamond drill hole (Calibre news release
dated January 20, 2012). In a news release dated March 1, 2012 Alder reported
results from porphyry-style mineralization that included 3.32% Cu, 0.22 g/t Au
and 37.55 g/t Ag over 12.0 metres in an altered diorite exposed in a trench
located in the Bambana area, 4 kilometres northwest of the Santa Rita pit. This
trench is one kilometre southwest of two holes drilled by Calibre in 2010 that
returned 0.43% Cu and 7.56 g/t Ag over 48.0 metres, and 0.51% Cu, 0.25 g/t Au
and 10.41 g/t Ag over 11.5 metres that had intersected a similarly mineralized
and altered intrusive rock. 


A total of 55 shallow reverse circulation drill holes were completed on the
Santa Rita mine stockpiles from December 2011 through early February 2012. The
weighted average grade of all RC drill results from the stockpiles is 0.49% Cu,
0.42 g/t Au and 7.24 g/t Ag over an average thickness of 13.4 metres within a
cumulative area of approximately 320,000 square metres. Ongoing specific gravity
measurements from the stockpiles indicate a range from 1.80 to 2.25 g/cc3 and
average 1.97 g/cc3. A resource estimate of the stockpiles is ongoing and results
are expected within the next few weeks. Bedrock mineralization continues to be
tested with resumed core drilling in the vicinity of the Santa Rita and R-13
pits with 11 holes totaling 3,423 metres completed. In addition, IP-resistivity
geophysical surveying is ongoing; several distinct chargeability anomalies have
been delineated with 31 line-kilometres of survey completed which represents 47%
of the geophysical program. Chargeability anomalies are inferred to represent
areas of disseminated sulphide mineralization which could represent
porphyry-type exploration targets. Ground truthing, mapping and trenching are
planned over the anomalies that are interpreted to intersect the surface. Deeper
targets will be drill tested.


Qualified Person

John C. Spurney, Certified Professional Geologist (CPG-11007), Vice President
Exploration for Alder and a qualified person as defined by NI 43-101, has
reviewed and approved the scientific and technical information contained in this
news release.


About Alder Resources Ltd. 

Alder is a natural resource company focused on the development of gold and base
metal projects throughout Latin America. The company's current focus is on the
Rosita skarn-porphyry project in Nicaragua located 275 km northeast of Managua. 


Alder Resources Ltd. 

Joseph Arengi, President & CEO    

Cautionary Note Regarding Forward-looking Information 

This press release contains "forward-looking information" within the meaning of
applicable Canadian securities legislation. Forward-looking information
includes, without limitation, statements regarding potential mineralization,
reserve and resource determination, exploration results and future plans.
Generally, forward-looking information can be identified by the use of
forward-looking terminology such as "plans", "expects" or "does not expect", "is
expected", "budget", "scheduled", "estimates", "forecasts", "intends",
"anticipates" or "does not anticipate", or "believes", or variations of such
words and phrases or state that certain actions, events or results "may",
"could", "would", "might" or "will be taken", "occur" or "be achieved".
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 Alder, as the case may be, to be materially
different from those expressed or implied by such forward-looking information,
including but not limited to: general business, economic, competitive,
geopolitical and social uncertainties; the actual results of current exploration
activities; risks associated with operation in foreign jurisdictions; ability to
successfully integrate the purchased properties; foreign operations risks; and
other risks inherent in the mining industry. Although Alder 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. There can be
no assurance that such information will prove to be accurate, as actual results
and future events could differ materially from those anticipated in such
statements. Accordingly, readers should not place undue reliance on
forward-looking information. Alder does not undertake to update any
forward-looking information, except in accordance with applicable securities
laws.


Table 1. Summary of Tailings Sample Results.



Sample No.  Location                Cu        Au        Ag
                                   (%)     (g/t)     (g/t)
                                                          
400001         Upper              0.01     0.347      34.7
400002         Lower              0.09     0.715      22.1
400003         Upper              0.01     0.253      55.8
400004         Lower              0.10     0.286       7.6
400005         Upper              0.01     0.225      41.9
400006         Lower              0.22     0.573       7.9
400007         Upper              0.02     0.365      26.5
400008         Lower              0.02     0.399      59.4
400009         Upper              0.01     0.249      11.7
400010         Lower              0.26     0.872       7.5
400011         Upper              0.13     2.414       6.5
400012         Lower              0.52      2.00       6.6
400013         Upper              0.26     0.242       6.3
400014         Lower              0.90     0.414      12.3
400015         Upper              0.30     0.189      12.1
400016         Lower              0.04     0.074       1.4
400017         Upper    less than 0.01     0.017       0.1
400018         Lower    less than 0.01     0.046       0.1
400019         Upper              0.80     0.211      13.7
400020         Lower              0.62     0.053       2.3
400021         Upper              0.04     0.137         6
400022         Lower              0.15     0.222      15.2
400023         Upper              0.06     0.224      10.2
400024         Lower              0.12     0.276      11.1
400025         Upper              0.39     0.201       4.6
400026         Lower              0.31     0.127       4.5



To view "Figure 1. Sample location map", please visit the following link:
http://media3.marketwire.com/docs/AlderResourcesSampleLocationMap.pdf.

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