Mercator Minerals Provides Mineral Park Phase II Expansion Update

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 09/08/11 -- Mercator Minerals Ltd. (TSX: ML) ('Mercator' or the 'Company') is pleased to provide an update on the Phase II expansion at its wholly-owned Mineral Park Mine in Arizona. Since commissioning the natural gas turbine (see August 15, 2011 press release), through-put of the concentrator has averaged over 40,000 tons per day (tpd). During the final week of August through-put averaged nearly 45,000 tpd, with a single day record of 49,195 tons achieved on August 31st.

Bruce McLeod, President and Chief Executive Officer, comments, 'Despite the down time taken in August to tie in the new turbine and Phase II grinding and flotation circuits, our team did a tremendous job ramping up through-put to the highest levels ever. Even though nearly 50,000 tpd through-put has been achieved, completion of the second crusher later in September will remove the final bottleneck to sustain through-put at these levels.'

About Mercator Minerals Ltd.

Mercator Minerals Ltd., a TSX listed Canadian mining company, with one of the fastest growing base metal profiles in its peer group, is a leading copper and molybdenum producer with a diversified portfolio of high quality operations and projects in the USA and Mexico. Mercator provides investors exposure to current copper and molybdenum production from the large tonnage long life Mineral Park Mine in Arizona, as well as mid-term exposure to additional copper and moly production through the development of the El Pilar and El Creston deposits in northern Mexico.

For further information please visit www.mercatorminerals.com.

On Behalf of the Board of Directors

MERCATOR MINERALS LTD.

D. Bruce Mcleod, P.Eng, President and CEO

Forward Looking Information

This press release contains certain forward-looking information within the meaning of Canadian securities legislation and forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995. This information and these statements, referred to herein as 'forward-looking statements', are not historical facts, are made as of the date of this press release and include without limitation, statements regarding discussions of future plans, projections, objectives, estimates and forecasts and statements as to management's expectations with respect to, among other things, future production and mine and power costs, and discussions of future plans, projections and objectives. In addition, estimates of mineral reserves and resources may constitute forward looking statements to the extent they involve estimates of the mineralization that will be encountered if a property is developed. These forward-looking statements involve numerous risks and uncertainties and actual results may vary. Important factors that may cause actual results to vary include without limitation, certain transactions, certain approvals, changes in commodity and power prices, changes in interest and currency exchange rates, risks inherent in exploration results, timing and success, inaccurate geological and metallurgical assumptions (including with respect to the size, grade and recoverability of mineral reserves and resources), unanticipated operational difficulties (including failure of plant, equipment or processes to operate in accordance with specifications, cost escalation, unavailability of materials, equipment and third-party contractors, delays in the receipt of government approvals, industrial disturbances or other job action, and unanticipated events related to health, safety and environmental matters), political risk, social unrest, and changes in general economic conditions or conditions in the financial markets.

In making the forward-looking statements in this press release, the Company has applied several material assumptions, including without limitation, the assumptions that: (1) market fundamentals will result in sustained copper and molybdenum demand and prices; (2) while the Company temporarily ceased placing new ore on the leach pads in late May 2008, the current copper leach operations at Mineral Park remain viable operationally and economically; (3) the milling expansion of Mineral Park will continue to be viable operationally and economically and the balance of the construction will proceed as expected; and (4) any additional financing needed will be available on reasonable terms. The risks and assumptions are described in more detail in the Company's Annual Information Form, audited financial statements and MD&A for the year ended December 31, 2010 on the SEDAR website at www.sedar.com. The Company does not assume the obligation to revise or update these forward-looking statements after the date of this news release or to revise them to reflect the occurrence of future unanticipated events, except as may be required under applicable securities laws.

Contacts:

Mercator Minerals Ltd.

Bruce McLeod

President & CEO

778.330.1290
bmcleod@mercatorminerals.com


Mercator Minerals Ltd.

David Jan

Head of Investor Relations & Communications

778.330.1295
djan@mercatorminerals.com
www.mercatorminerals.com