Silverstone Announces 130% Increase in Silver Reserves at Lundin Mining's Neves-Corvo Mine

5/22/2008, 3:00 PM (Source: GlobeNewswire)
VANCOUVER, BRITISH COLUMBIA--(Marketwire - May 22, 2008) -
Silverstone Resources Corp. ("Silverstone") (TSX VENTURE: SST) is
pleased to announce updated 2007 year end Mineral Reserve and Mineral
Resource estimates for Lundin Mining Corp.'s (Lundin) Neves-Corvo
mine located in Portugal. A National Instrument 43-101 compliant
technical report has been prepared for Silverstone by Qualified
Person, Mr. Neil Burns P.Geo., Lundin's Corporate Resource Geologist.
This report titled "Resource and Reserve Update Neves-Corvo, Portugal
Prepared for Silverstone Resources Corp." dated May 2008 will be
filed on www.sedar.com within 45 days.

Silver contained in proven and probable reserves at Neves-Corvo has
increased by over 130% to 91.6 million ounces from 39.3 million
ounces in 2006. Silver contained in Measured plus Indicated resource
categories, which includes reserves, has increased by 67% to 148.8
million ounces from 89.3 million in 2006. The 2006 resource and
reserve estimates were detailed in the previous technical report
prepared by Wardell Armstrong International Limited entitled
"Technical Report on the Neves Corvo Mine, Southern Portugal" dated
October 10, 2007 and filed on www.sedar.com.

The increases in resources and reserves at Neves-Corvo are primarily
a result of exploration success, improvements in estimation methods
and the lowering of cut-off grades. A large portion of the increase
results from the first time reporting of Measured and Indicated
resources and Proven and Probable reserves for the Lombador South
zinc orebody which has been the focus of an extensive surface
exploration program by Lundin.

Silverstone purchased all the silver production from Lundin's
Neves-Corvo producing mine in Portugal for life of mine.

The following tables set forth the Silverstone updated estimated
Proven and Probable Reserves and the Mineral Resources for the
Neves-Corvo Mine as of December 31, 2007.

Current Proven and Probable Reserves for the Neves-Corvo mine are
tabulated below:



Proven and Probable Mineral Reserves (1)

--------------------------------------------------------------------------
Reserves Tonnes Copper Zinc Silver Contained
Mine Zone Category (M) % % g/t Ounces (M)
--------------------------------------------------------------------------
Neves- Copper Proven 17.18 4.43 0.89 35 19.4
Corvo
--------------------------------------------------------------------------
Probable 0.53 2.81 0.15 59 1.1
--------------------------------------------------------------------------
Proven + 17.71 4.38 0.87 36 20.5
Probable
--------------------------------------------------------------------------
Neves- Zinc Proven 19.07 0.41 6.13 66 40.5
Corvo
--------------------------------------------------------------------------
Probable 14.44 0.40 7.32 66 30.6
--------------------------------------------------------------------------
Proven + 33.51 0.41 6.64 66 71.1
Probable
--------------------------------------------------------------------------
1. Reserves for the Neves-Corvo mine are estimated using cut off grades of
4.6% zinc and 1.6% copper. The reserves are calculated by the mine
engineers under the direction of Neil Burns P.Geo., Qualified Person for
the 2007 Reserve and Resources estimates.


The Measured, Indicated and Inferred mineral resources are presented
below and include the mineral reserves tabulated above:



Measured and Indicated and Inferred Resources (2)

--------------------------------------------------------------------------
Tonnes Copper Zinc Silver Contained
Mine Zone Category (M) % % g/t Ounces (M)
--------------------------------------------------------------------------
Neves- Copper Measured 19.24 5.14 1.00 47 28.9
Corvo
--------------------------------------------------------------------------
Indicated 1.2 3.98 1.23 54 2.1
--------------------------------------------------------------------------
Measured & 20.44 5.07 1.01 47 31.0
Indicated
--------------------------------------------------------------------------
Inferred 3.3 3.37 0.82 37 3.9
--------------------------------------------------------------------------
Zinc Measured 38.66 0.48 5.70 64 79.5
--------------------------------------------------------------------------
Indicated 17.86 0.43 7.38 67 38.3
--------------------------------------------------------------------------
Measured & 56.5 0.46 6.23 65 117.8
Indicated
--------------------------------------------------------------------------
Inferred 20.5 0.45 4.61 53 34.9
--------------------------------------------------------------------------
2. Resources for the Neves-Corvo mine are reported above cut off grades of
3.0% zinc, and 1.0% copper. The resources are estimated by the mine
geologists under the direction of Neil Burns P.Geo., Qualified Person
for the 2007 Reserve and Resource estimates.


Mr. Hugh Willson, P.Geo., Vice-President, Exploration of Silverstone,
who is a "qualified person" under National Instrument 43-101, has
reviewed and approved the technical aspects of this news release.

ABOUT SILVERSTONE

Silverstone is a Canadian based public silver mining company with
100% of its revenue from silver production. More information is
available online at: www.silverstonecorp.com.

This press release contains "forward-looking information" that is
based on Silverstone's current expectations, estimates, forecasts and
projections. This forward-looking information includes, among other
things, statements with respect to Silverstone's mineral discoveries,
plans, outlook and business strategy. The words "may", "would",
"could", "should", "will", "likely", "expect", "anticipate",
"intend", "estimate", "plan", "forecast", "project" and "believe" or
other similar words and phrases are intended to identify
forward-looking information.

Forward-looking information is subject to known and unknown risks,
uncertainties and other factors that may cause Silverstone's actual
results, level of activity, performance or achievements to be
materially different from those expressed or implied by such
forward-looking information. Such factors include, but are not
limited to: projected sales or production rates; uncertainties
related to drilling results; the ability to raise sufficient capital
to fund exploration; changes in economic conditions or financial
markets; changes in prices for costs; litigation, legislative,
environmental and other judicial, regulatory, political and
competitive developments; technological or operational difficulties
or inability to obtain permits encountered in connection with
exploration activities; and labor relations matters.

This list is not exhaustive of the factors that may affect our
forward-looking information. These and other factors should be
considered carefully and readers should not place undue reliance on
such forward-looking information. Silverstone disclaims any intention
or obligation to update or revise forward-looking information,
whether as a result of new information, future events or otherwise.

The TSX Venture Exchange has neither approved or disapproved of the
contents herein.

Contacts:
Silverstone Resources Corp.
Chris Tomanik
(604) 637-8151
Email: ctomanik@silverstonecorp.com

Silverstone Resources Corp.
Mark Patchett
(604) 637-8151
(604) 688-2180 (FAX)
Email: mpatchett@silverstonecorp.com
Website: www.silverstonecorp.com
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