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Impact Silver Announces New Silver Discoveries At Mamatla
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IMPACT Silver Corp. ("IMPACT") is pleased to announce the discovery of
several new silver prospects in the Mamatla District. The wholly-owned
200 square-kilometer Mamatla District is located southwest of and
immediately adjacent to the Royal Mines of Zacualpan. Mamatla is host
to both epithermal veins and volcanogenic massive sulphide deposits.
Field work has demonstrated that some of the veins exploited within the
Royal Mines of Zacualpan project extend onto the eastern portion of the
Mamatla District. Most of the prospects described below are within
trucking distance from the operating mill at Zacualpan.

Field crews began prospecting and sampling at Mamatla immediately after
IMPACT won the project in a government auction earlier this year. Much
like at Zacualpan, the majority of the targets have historical workings
that stopped due to groundwater. These targets will be advanced towards
drilling in 2008.

SAN CARLOS AREA PROSPECTS

The ruins of the large historic San Carlos processing plant are located
13 kilometers southwest of IMPACT's operating Zacualpan processing
plant. The San Carlos plant appears to have served as a central
facility for processing minerals from local mines. At the site, IMPACT
crews found seven piles of mineralized rocks varying from 20 - 500
tonnes in size. Samples from these rock piles assayed between 0.06
2.12% copper, 0.1 - 17.55% zinc, 0.1 - 11.45% lead, 46 - 836g/t silver
and 0.2 -- 8.65g/t gold. With the belief that these piles represent
mineral collected from various nearby old mines, IMPACT crews began
prospecting the surrounding countryside and discovered numerous old
mine workings. Samples from some of the first workings discovered are
reported below.

PIRUL PROSPECT

The Pirul Prospect is comprised of old mine shafts and adits located 1
kilometer north of the San Carlos plant. Samples from the workings
returned the following values:



PIRUL PROSPECT

LOCATION SAMPLE WIDTH (m) SILVER (g/t) ZINC (%) LEAD (%)
Sample from shaft 2.0 331 0.04 9.23

Samples from adit
located 65m southeast
of shaft

5m from entrance 1.7 304 0.36 4.96
12m from entrance 1.0 285 5.31 6.88



GORRION PROSPECT

The Gorrion Prospect is located 500m west of the Pirul Prospect.
Samples from a dump beside a surface cut and a nearby outcrop returned
the following values:



GORRION PROSPECT

LOCATION ESTIMATED TRUE WIDTH (m) SILVER (g/t)

Mine dump -- 311
Surface sample of vein 2.1 163



ANGEL PROSPECT

The Angel Prospect is located 3 kilometers northwest of the San Carlos
plant. Highlights from a series of old shafts and small surface open
cuts traced over 100m returned the following values:



ANGEL PROSPECT

LOCATION ESTIMATED SILVER (g/t)
TRUE WIDTH (m)

Random samples from
2000T old mine dump - 481

Average of 3 samples
beside Shaft No. 1 0.9 331

Sample from Shaft
No. 2
(30mNW of Shaft No. 1) 0.9 492




SAN NICOLAS DEL COBRE PROSPECTS

The San Nicolas del Cobre Prospects are found over a distance of 1
kilometer in the far northwest of the Mamatla District. Samples taken
from old mine workings in the area returned the following values:



SAN NICOLAS DEL COBRE PROSPECTS

LOCATION ESTIMATED COPPER (%) SILVER (g/t) GOLD (g/t)
TRUE WIDTH (m)

Average of
5 samples
in Cobriza
Shaft 0.4 2.03 257 0.2

Including 0.6 5.82 401 0.2

Amigo Shaft 1.0 1.67 123 0.5

Enjambre Shaft 0.5 1.85 98 4.1

Enjambre mine dump -- 2.60 287 2.0



IMPACT continues to conduct surface and underground mapping and
sampling in the Mamatla District. Based on encouraging results from
this initial field work, a drill program is being planned for this area
in 2008. Meanwhile, surface and underground drilling continue unabated
at Royal Mines of Zacualpan.

George Gorzynski, P.Eng., a Qualified Person under the meaning of
Canadian National Instrument 43-101 and Vice President, Exploration of
IMPACT Silver Corp., is responsible for the technical content of this
news release. Chip and channel samples were collected from cleaned rock
faces over a continuous representative interval using a chisel and
hammer. A total of 5% assay standards and blanks were inserted into
every sample shipment as a quality control measure. All samples were
shipped to the ALS Chemex preparation laboratory in Guadalajara,
Mexico, where they were fine crushed (70% passing a 2mm screen),
pulverized (85% passing a 75 micron screen) and pulp split separated
for assay by a riffle splitter. These pulps were shipped to the ALS
Chemex laboratory in North Vancouver, Canada, where a 30-gram split of
each was assayed for gold and silver by standard fire assay and a
10-gram split was analyzed for an additional 30 elements by ICP
spectrometry.

IMPACT Silver Corp. is a silver-focused mining and exploration company
with a producing silver operation at Zacualpan, Mexico; a district
scale exploration program at Mamatla, Mexico; an advanced project with
a producing mill at Zacatecas, Mexico; and other projects in the
Dominican Republic. Energold Drilling Corp. (EGD:TSX.V) owns 6.6
million shares of IMPACT.

On behalf of the Directors of IMPACT Silver Corp.

"Frederick W. Davidson"
President & CEO

For further information, please contact:
Darrell Rader - Corporate Development

The TSX Venture Exchange does not accept responsibility for the
adequacy or accuracy of this news release.

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Copyright (c) 2007 IMPACT SILVER CORP. (IPT) All rights reserved. For
more information visit our website at http://www.impactsilver.com/ or
send mailto:inquiries@impactsilver.com
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