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Re: News Releases - Tuesday, April 22, 2008
Commissioning of Flotation Circuit at the San Martin Silver Mine
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First Majestic Silver Corp. is pleased to announce that it has
completed the commissioning of a new flotation circuit at its San
Martin Silver Mine in Jalisco Mexico. Historically, the San Martin
mill, which has a capacity of 800 tonnes per day (tpd), has been
processing oxide ores from the mine through a cyanidation plant to
produce Dore bars. The addition of this 500 tpd flotation circuit will
now allow the Company to take advantage of the extensive sulphide
mineralization as defined in the Company's NI 43-101 report. The new
combined plant at San Martin will now be capable of producing both Dore
bars from oxides and lead and zinc concentrates from sulphides thereby
optimizing the Company's silver production. The two circuits will be
run on an alternating basis.

Construction of the new flotation circuit commenced in December 2007
and was completed in February 2008. Construction was completed in
record time of only 8 weeks with a total investment of US$1.1 million.

The testing and final commissioning of the lead and zinc circuits took
place in March and April and involved the systematic testing of all
components, metallurgical and mechanical. This process was necessary to
optimize the different parameters of the grade of concentrates and
maximize recoveries of silver, lead and zinc. The first shipment of 160
tonnes of lead concentrate left the San Martin Silver Mine on March
28th and since then an additional 150 tonnes have been produced and is
sitting in storage waiting to be shipped.

The ongoing aggressive development and exploration program is
continuing for the purpose of increasing both the oxide and sulphide
Resources within the mine. As a large component of the Company's
present NI 43-101 Resources / Reserves is sulphide ore and readily
available for mining, a decision was made to build this circuit to
optimize this operation. The next step in the Company's expansion plan
at the San Martin Silver Mine is to add additional crushing and
grinding capacity. Engineering design work is under way as well as a
full economic evaluation in order to improve the economics of the
operation. It is anticipated that within approximately 30 days, the
Company will announce the outcome of this evaluation and the Company's
go ahead plan.

In addition to the mill expansion, a total of 7000 metres of
underground development is planned and 29,600 metres of diamond
drilling is scheduled for 2008. There are presently six drill rigs on
site at San Martin. Five are operating, and one just arrived last week
and will soon be in operation. Two additional rigs are scheduled to
arrive within the next two weeks, bringing the total to eight drill
rigs, four underground and four surface rigs. The result of this work
will assist in; increasing silver production going forward, and; is
expected to result in improved NI 43-101 compliant silver Resources.
The Company anticipates the next NI 43-101 Report on the San Martin
Silver Mine will be completed by July 2008. As a result of the addition
of the flotation circuit, the sulphide Resources as defined in the
Company's current 43-101 Report will also be upgraded.

First Majestic is a producing silver company focused in Mexico and is
aggressively pursuing its business plan to become a senior silver
producer through the development of its existing assets and the pursuit
through acquisition of additional assets that contribute to achieving
its corporate growth objectives.

FOR FURTHER INFORMATION contact info@firstmajestic.com, visit our
website at www.firstmajestic.com or call our toll free number
1.866.529.2807.

FIRST MAJESTIC SILVER CORP.

"signed"

Keith Neumeyer,
President & CEO

This press release includes certain "Forward-Looking Statements" within
the meaning of section 21E of the United States Securities Exchange Act
of 1934, as amended. All statements, other than statements of
historical fact, included herein, including without limitation,
statements regarding potential mineralization and reserves, exploration
results and future plans and objectives of First Majestic Silver Corp.
are forward-looking statements that involve various risks and
uncertainties. There can be no assurance that such statements will
prove to be accurate and actual results and future events could differ
materially from those anticipated in such statements.

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Copyright (c) 2008 FIRST MAJESTIC SILVER CORP. (TSXV-FR) All rights
reserved. For more information visit our website at
http://www.firstmajestic.com/ or send mailto:general@firstmajestic.com
Message sent on Tue Apr 22, 2008 at 8:57:07 AM Pacific Time
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