Zena Mining Corp. (TSX VENTURE:ZCC) ("Zena" or the "Company") has prepared this
News release to clarify certain information included in News releases issued on
February 22, 2011 and December 5, 2011.


The aforementioned News releases reported a barite measured resource of 5,800
tonnes and an inferred resource showing a typo of 10,000 tonnes, with average
grades above or near the specific gravity threshold of 4.10. The correct
inferred resource should have been 4,340 tonnes, as was reported in several news
releases prior to December 5, 2011. 


A NI 43-101 compliant report prepared for the Company by Godfrey Walton, P.
Geo., dated October 24, 2003, was the basis for these News releases, and
reported a measured resource of 5,800 tonnes with specific gravity of 4.25 and
an inferred resource 4,340 tonnes averaging specific gravity of 3.93 in the "A"
zone at the Lapin Barite property near Rock Creek, B.C. 


The Company's is currently undertaking its 2012 exploration program, with a cost
budget to be approximately the same as the 2011 program, including the stripping
of the northern limits of the Barite lenses in the "B" zone, with the
possibility of producing a larger test sample. The exploration program may also
include further review of the "A" zone. The field work portion of the program
has been completed and the Company is awaiting the results of the program.


The Company also reports that it is preparing a new Mineral and Coal Exploration
Notice of Work Application ("NOW") for submission to the Ministry of Energy and
Mines for approval. The Company will not undertake further field work until the
NOW is approved.


This press release has been reviewed by Barry J. Price, M.Sc., P.Geo., an
independent consultant based in Vancouver BC. Mr. Price supervised the
exploration and sampling program in 2010 and the stripping and sampling program
in 2011.


ON BEHALF OF THE BOARD

Kevin Hanson, Director
Zena Mining Corp. (TSXV:ZCC)
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