El Aguila Drilling Results

Horizonte Minerals PLC
17 March 2008

        Horizonte Minerals plc / Index: AIM / Epic: HZM / Sector: Mining

17 March 2008

                      Horizonte Minerals plc ('Horizonte')

      Drilling Report - Further High Grade Silver Intersected at El Aguila


Horizonte Minerals plc ('Horizonte' or 'the Company'), the AIM listed
exploration and development company focused on Brazil and Peru, is pleased to
announce further encouraging drill results from its 100% owned silver-lead-zinc
project at the El Aguila project located in the world class Cerro de Pasco
district of central Peru.  Results of significance are summarised below:

Zona Sur Highlights

 Drill Hole   Drilling  Drilling   Interval     Ag g/t      Pb %        Zn %
                Depth     Depth     Metres
                From       To
              (metres)  (metres)
  HMDDH-12      114.0     117.0      3.0         64.0       0.69        1.21
               155.80    156.13      0.33       319.55      3.57        4.59
               157.26    157.55      0.29       627.9       8.17        7.13
  HMDDH-13      42.98     44.07      1.09       207.59      3.49        2.75
                80.30     81.0       0.70       367.31      2.43        4.93
  HMDDH-14      52.00     57.00      5.0        199.04      0.54        0.34
  HMDDH-15      4.47      6.98       2.51        115        1.62        0.48
  HMDDH-18      58.80     60.83     12.03       112.97      0.82        1.63
                136.0     138.0      2.0          93        0.22        0.18

Pacos Hill Highlights

 Drill Hole   Drilling  Drilling   Interval   Ag g/t     Pb %        Zn %
                Depth     Depth     Metres
                From       To
              (metres)  (metres)
  HMDDH-19      56.12     56.42      0.30       531      8.13        3.76
  HMDDH-20      56.0      74.0       18.0     133.70     0.27        0.21
                93.68     94.38      0.70       785      12.1        2.84
  HMDDH-21      49.90     50.97      1.07       218      7.43        6.03
                51.85     57.25      5.40     156.18     4.98        3.86
                81.40     81.75      0.35       242      7.22        5.09
                96.0     102.17      6.17      128.8     4.61        3.36
               103.42    109.16      5.74     176.62     6.80        4.44
               112.10    114.30      2.20     228.18     6.81        7.44
                176.0     182.0      6.00      215.5     3.41        2.61

Horizonte CEO Jeremy Martin said, 'We are gaining a better understanding of the
mineralisation at El Aguila, with both target zones, Zona Sur and Pacos Hill
returning good silver grades. The Zona Sur results demonstrate that there is
high grade silver mineralisation at depth associated with the main structures
that were mapped on surface.  The veins display good continuity but the width is
the limiting factor. However we believe that these represent leakage structures
from more consistent wider mineralisation at depth as witnessed at Pacos Hill.

'The results from the Pacos Hill drilling five kilometres to the north of the
Zona Sur, are very exciting and have returned good zones of economic
mineralisation. Hole DDH 21 in particular with multiple zones reporting plus 5
ounce silver demonstrate good continuity of mineralisation which continues to
depth.  The focus appears to be a sub vertical manto although at this stage we
do not know what the vertical extent is on this body or if there are more of
them at depth.  This requires further deep drilling to increase the overall
tonnage potential of the project.

'With silver now trading at 26 year highs we intend to continue to explore El
Aguila and work towards a resource at Pacos Hill.  The project location in one
of Peru's principal silver-zinc districts and with our exploration programme
yielding these results, it all points to a project that we believe will be
attractive to a larger mining company to develop and bring into production'.

Detailed Project Information

A total of 1,526 metres was drilled in 10 holes over two target areas, Zona Sur
and Pacos Hill.  Seven wide spaced reconnaissance holes were drilled to test the
geochemical and geophysical anomalies at the Zona Sur target area (HMDDH 12 to
18) and a further three holes were drilled to test the geophysical anomalies and
depth extension to the mineralisation at the Pacos Hill target 5 km to the north
(HMDDH 19 to 21).

The Zona Sur target has had no previous drilling. Over the last six months
Horizonte has completed surface mapping, rock geochemical sampling and two
phases of ground geophysics (Induced Polarisation ('IP')  and magnetics),
resulting in drill target definition.  The drill holes covered a strike length
of 400m along a major northeast-southwest orientated structure that has seen
extensive colonial mining activity. The drill holes were located on 80m centres
with inclinations varying from -55(o) to -75(o) (drill plan location is
available on the website).  The holes intersected narrow high grade polymetallic
style mineralisation with fine grained disseminated pyrite hosted within
dolomitised and silicified Pucarra Limestone, which is the main host rock to the
producing polymetallic mines around the Cerro de Pasco.  The narrow veins
display good vertical and lateral continuity with high silver grades, maximum
DDH12 returning 0.29m at 627.9 g/t Ag, however it is considered that these veins
are distal to the main mineralised centre.

At Pacos Hill three drill holes were positioned to test the previously defined
mineralisation to depth and coincident IP geophysical anomaly.  DDH 19 was
drilled at - 50(o) to test the Veta Sur to a depth of 100m.  DDH 20 was drilled
at -60(o) to test the depth extension of the Veta Norte. This hole returned two
zones of mineralisation with the deeper zone returning 18m grading 133g/t Ag
hosted in the fractured Puccara limestone with hydrothermal breaccia. The final
hole of the programme, HMDDH-21, intersected 19 zones with greater than 1 oz/t
Ag over its 206m drill length. These zones ranged from 0.35m to over 6m from
176m depth. It is the Company's view that this increase in intensity of silver
mineralisation and associated alteration may indicate larger mineralised body at
depth.

Sampling, assaying, and QA/QC

Procedures adopted by Horizonte in the collection, preparation and storage of
samples from the auger drilling programme, conform to industry-wide best
practice and with chain of custody being observed for all samples. Analysis is
undertaken by ALS Labs at its laboratories in Vancouver, Canada, and the Company
maintains QA/QC on all analytical work via the inclusion of certified reference
materials and field duplicates and blanks, in addition to monitoring of the
laboratory's own internal check-analyses.

The above information has been reviewed and verified by Mr. Jeremy Martin, a
Director and Chief Executive of Horizonte, for the purposes of the Guidance Note
for Mining, Oil and Gas Companies issued by the London Stock Exchange in March
2006.  Mr. Martin holds a degree in geology from the Camborne School of Mines
and an MSc in mineral exploration from the University of Leicester. He is also a
member of the Society of Economic Geologists and the Institute of Mining
Analysts.

                                  * * ENDS * *

For further information visit www.horizonteminerals.com or contact:
Jeremy Martin/David Hall            Horizonte Minerals plc            Tel: [phone]
Jeremy Porter/Laura Littley         Fairfax I.S. PLC                  Tel: [phone]
Hugo de Salis/ Felicity Edwards     St Brides Media & Finance Ltd     Tel: [phone]

Notes to Editors:

Horizonte Minerals plc is an AIM listed exploration and development company with
a portfolio of gold, nickel, silver, lead and zinc projects in producing mineral
districts in Brazil and Peru.  It has three primary projects working towards a
resource definition including the 22,556 hectare Lontra nickel project situated
in the Araguaia mobile belt, which flanks the eastern margin of the Carajas
Mineral Province of northern Brazil, the silver-zinc-lead project El Aguilia in
Peru, located in the historic mining district of Cerro de Pasco and the 300 sq
km Falcao gold project located near the Lontra project. In addition it has a
generative pipeline of early stage projects in development.

The Company is focused on generating and rapidly advancing exploration projects
before joint venturing them with a major mining company to further develop the
projects and provide mid-term cash flow, which can be fed back into the business
and its other projects.  This model was proven in December 2007 when Horizonte
signed an option agreement with Troy Resources (ASX:TRY), to operate and develop
its Brazilian Tangara gold project by expending a total US$2.8 million on
exploration and development as well as a royalty payment on production.






                      This information is provided by RNS
            The company news service from the London Stock Exchange