Vancouver, Canada - Rochester Resources Ltd. (TSXV: RCT; OTCBB: RCTFF
and Frankfurt: R5I):
The Board of Directors is pleased to provide a further update on the
status of its Mina Real mining and milling operation in the State of
Nayarit, Mexico.
Mining Operations: A more comprehensive sampling has been taken along
the ramp development reported in our March 30, 2007 news release and
assays received from SGS Laboratories, an independent ISO 2000
laboratory. The attached table shows all assay results received to date
from 58 channel samples taken over approximately 120 metres of
development within the vein system. The independent assays indicate an
average vein width of 1.35 metres with average grades of 17 grams of
gold per tonne and 139 grams of silver per tonne. Dr. Alfredo Parra,
PhD and Qualified Person, commented that "Although these grades are
lower than those earlier reported for a segment of the uppermost
portion of the Level 1115 ramp, we continue to get excellent results as
we ramp down to the lower level of the Florida 1 vein system. On the
upper ramp to Level 1115, grades on eleven contiguous channel samples
taken over approximately 20 metres of vein structure averaged 30.8
grams/tonne of gold and 212 grams/tonne of silver and an average width
of 1.33 metres. Six of these samples ranged between 26.7 and 59.1
grams/tonne of gold. The lower ramp has so far produced an average
grade of 15.1 grams/tonne of gold and 116 grams/tonne of silver from 19
channel samples taken over approximately 38 metres. Ongoing mine
development work has continued during the temporary shutdown of the
mill, which continues to increase our stockpile of mill feed."
Milling Operations: The modifications to the pregnant solution pumping
and piping systems were completed early last week. Additional capacity
is in the process of being installed in the grinding section which
should be completed in the next couple of days. These modifications are
expected to allow mill production to reach our initial target of 200
tonnes/day with 80% grind passing 100 mesh and recovery of 90%+ for
gold. Although the plant has been operating on a periodic basis to test
the modified systems, we have not been in a position to recommence
regular milling operations. During the commissioning process, ongoing
monitoring revealed that the rock beneath the lined tailings dam was
more permeable than indicated by pre-construction testing. As a result,
a cyanide destruction circuit was installed during the recent shutdown
to neutralize the tailings prior to being deposited in the tailings
dam. Tests completed to date indicate that this destruction process is
working effectively and we expect to receive final approval on this
aspect of the modifications in the next few days. Commissioning of the
plant is expected to re-commence shortly thereafter.
Dr. Alfredo Parra, the company's President, has an extensive background
in mining exploration and operations, including senior management level
positions with major Mexican based corporations such as CIA Minera
Penoles and Kennecott. Dr. Parra is currently the Company's in-house
Qualified Person and QP Member of the Mining and Metallurgical Society
of America with special expertise in Mining.
Rochester represents a pure-play into the exploration and development
of gold and silver properties located in Mexico. Its key operating
personnel are highly skilled and credentialed Mexican citizens with the
ability to identify and negotiate the acquisition of other advanced
exploration and development properties in the region. Operating
management has strong support from an active board of consulting
directors with extensive experience in mining, milling and exploration.
ON BEHALF OF THE BOARD
"Douglas F. Good"
Douglas F. Good, Chairman
Investor information contact:
Empire Communications Inc.
Tel: 1-866-841-0068
Email: info@rochesterresourcesltd.com
Website:
www.rochesterresourcesltd.comForward Looking Statements
This Company Press Release contains certain "forward-looking"
statements and information relating to the Company that are based on
the beliefs of the Company's management as well as assumptions made by
and information currently available to the Company's management. Such
statements reflect the current risks, uncertainties and assumptions
related to certain factors including, without limitations, competitive
factors, general economic conditions, customer relations, relationships
with vendors and strategic partners, the interest rate environment,
governmental regulation and supervision, seasonality, technological
change, changes in industry practices, and one-time events. In
addition, the Company has not conducted an independent feasibility
study on the Mina Real project which may increase the risk that the
planned operations are not economically viable. Should any one or more
of these risks or uncertainties materialize, or should any underlying
assumptions prove incorrect, actual results may vary materially from
those described herein.The TSX Venture Exchange has not reviewed and
does not accept responsibility for the adequacy or the accuracy of this
release.
Figure 1 - RAMP 1511
Upper Ramp Lower Ramp
------------------------------------
------------------------------------
LINE NO SAMPLE NO WIDTH Au Ag LINE NO SAMPLE NO WIDTH Au
Ag
------------------------------------
------------------------------------
LINE 54- Outside
LINE 1 115-500 1.8 10.6 139 63 Vein
------------------------------------
------------------------------------
LINE 2 115-501 1.0 15.1 108 LINE 64 115-907 0.6 2.8
110
------------------------------------
------------------------------------
LINE 3 115-502 1.1 9.9 164 LINE 65 115-908 1.1 6.8
88
------------------------------------
------------------------------------
LINE 4 115-503 2.4 10.9 149 LINE 66 115-909 1.1 13.3
121
------------------------------------
------------------------------------
LINE 5 115-504 1.4 25.8 315 LINE 67 115-910 0.7 9.2
100
------------------------------------
------------------------------------
LINE 6 115-505 1.2 15.5 131 LINE 68 115-911 1.0 36.4
202
------------------------------------
------------------------------------
LINE 7 115-506 2.2 20.9 122 LINE 69 115-912 1.0 3.6
62
------------------------------------
------------------------------------
LINE 8 115-507 2.4 8.4 146 LINE 70 115-913 0.7 12.1
200
------------------------------------
------------------------------------
LINE 9 115-508 2.2 14.2 53 LINE 71 115-914 1.0 15.4
63
------------------------------------
------------------------------------
LINE 10 115-509 2.4 12.5 77 LINE 72 115-915 1.1 9.1
49
------------------------------------
------------------------------------
LINE 11 115-510 2.8 14.0 103 LINE 73 115-916 1.0 17.4
134
------------------------------------
------------------------------------
LINE 12 115-511 3.0 8.6 65 LINE 74 115-917 1.0 20.7
79
------------------------------------
------------------------------------
LINE 13 115-512 2.3 9.8 112 LINE 75 115-918 1.1 13.7
57
------------------------------------
------------------------------------
LINE 14 115-514 2.0 26.1 79 LINE 76 115-919 0.8 45.6
194
------------------------------------
------------------------------------
LINE 15 115-515 1.5 42.1 119 LINE 77 115-920 0.8 10.6
102
------------------------------------
------------------------------------
LINE 16 115-516 1.5 55.6 89 LINE 78 115-921 1.0 10.5
138
------------------------------------
------------------------------------
LINE 17 115-517 1.6 13.7 262 LINE 79 115-922 1.0 13.1
124
------------------------------------
------------------------------------
LINE 18 115-518 1.6 35.6 792 LINE 80 115-923 1.1 22.4
180
------------------------------------
------------------------------------
LINE 19 115-519 1.6 10.7 106 LINE 81 115-924 1.0 13.4
129
------------------------------------
------------------------------------
LINE 20 115-520 1.2 19.3 133 LINE 82 115-925 0.8 8.7
118
------------------------------------
------------------------------------
LINE 21 115-521 1.0 59.1 258 17.9
------------------------------------
LINE 22 115-522 0.9 17.2 135
------------------------------------
LINE 23 115-523 1.1 42.9 262
------------------------------------
------------------------------------
LINE 24 115-524 1.0 11.4 111 Width Gold
Silver
------------------------------------
------------------------------------
LINE 25 115-525 1.0 41.1 128 Upper Ramp
------------------------------------ Average 1.55 18.1
153.4
LINE 26 115-526 0.9 8.9 375 Lower Ramp
------------------------------------ Average 0.94 15.1
116.4
LINE 27 115-527 0.8 16.6 363 Combined
------------------------------------ Average 1.35 17.0
139.4
LINE 28 115-528 0.6 4.2 183
------------------------------------
------------------------------------
LINE 29 115-529 0.7 22.6 54
------------------------------------
LINE 30-41 Outside Vein
------------------------------------
LINE 42 115-122 1.0 22.9 98
------------------------------------
LINE 43 115-123 1.2 10.6 71
------------------------------------
LINE 44 115-124 1.7 10.9 208
------------------------------------
LINE 45 115-125 1.6 16.0 122
------------------------------------
LINE 46 115-126 1.7 8.6 132
------------------------------------
LINE 47 115-127 1.8 7.2 100
------------------------------------
LINE 48 115-128 1.7 10.7 128
------------------------------------
LINE 49 115-129 1.6 30.4 145
------------------------------------
LINE 50 115-130 1.6 23.6 136
------------------------------------
LINE 51 115-131 1.4 8.1 108
------------------------------------
60.5
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Copyright (c) 2007 ROCHESTER RESOURCES LTD. (RCT) All rights reserved.
For more information visit our website at
http://www.rochesterresourcesltd.com/ or send
mailto:info@rochesterresourcesltd.com
Message sent on Wed Apr 25, 2007 at 7:56:30 AM Pacific Time