ZCC

Zena Mining Corp. (TSX VENTURE:ZCC) ("Zena" or the "Company") is pleased to
announce that it has completed its 2011 exploration program on its Lapin Barite
property situated near Rock Creek, B.C. The Company owns 100% of the rights to
the Industrial Minerals subject to a 10% net profits interest and royalty and
other payments based on production to the original underlying vendors. Barite,
the primary industrial mineral on this property, is a major component and the
weighting agent used in drilling mud for the oil and gas industry's exploration
and developmental drilling programs. Zena has a permit for exploration and a
small bulk sample.


In 2010 Zena explored the "B" zone deposit by excavator stripping, mapping, and
diamond sawing representative samples. Stripping exposed an area roughly 40 by
20 meters which contains at least five zones of Barite, of which the most
important is the Main zone, exposed over a strike length of 20 meters and up to
10 meters wide. This zone is open to the north.  


In September 2011, additional areas in the "B" zone were stripped, and argillic
sediments were removed from the east wall of the Main zone. An excavator with a
rock-breaker was used to expose the barite along its length, and about 200
tonnes of barite was set aside from which 20 tonnes was mined and trucked to a
storage site in Rock Creek, B.C. From the "B" zone, 26 barite samples each from
1-5 kg in size (averaging 3 kg) were collected from four separate areas and
shipped to ALS Minerals Laboratory (ISO 17025 accredited) in North Vancouver,
where Specific Gravity measurements were completed. 


The twenty-six samples from the Main Zone had specific gravity ranging from 3.63
to 5.77, with a weighted average of 4.245. A minimum specific gravity of 4.10 is
required for Barite used as a weighting medium for drilling mud.  


The property has at present three known zones with Barite mineralization, known
as "A", "B" and "C" zones. Past exploration including trenching and drilling at
the "A" zone established a Barite deposit with grades above or near the specific
gravity threshold of 4.10. A NI 43-101 compliant measured resource of 5,800
tonnes with specific gravity of 4.25 and an inferred resource of 10,000 tonnes
averaging specific gravity of 3.93 was estimated for the "A" zone by Godfrey
Walton P.Geo. (2003).


The Company's 2012 planned exploration program, with a cost budget to be
approximately the same as the 2011 program, includes the stripping of the
northern limits of the Barite lenses in the "B" zone, with the possibility of
producing a larger test sample. The Company may also include in the exploration
program further review of the "A" zone.


This press release has been reviewed by Barry J. Price, M.Sc., P,Geo., an
independent consultant based in Vancouver, B.C. Mr. Price supervised the
stripping and sampling program and prepared the 2010 Technical Report.


ON BEHALF OF THE BOARD

Kevin Hanson, Director

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