Nickel Project Update

Horizonte Minerals PLC
13 November 2007

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



13th November 2007



             Horizonte Minerals plc ('Horizonte' or 'the Company')

     Drills Significant Nickel Intersections at the Lontra Project, Brazil



Highlights

  • Regional drill programme highlights potential for significant nickel
    mineralisation
  • 6 holes returned greater than 1% Nickel
  • 14 holes reported greater than 0.5% Nickel
  • Significant cobalt present potentially enhances project economics
  • Values defined over 1,000 metres strike in two priority targets to date


Horizonte Minerals plc, the AIM listed exploration and development company
focused on Brazil and Peru, has received highly anomalous nickel ('Ni') and
cobalt ('Co') values from its exploration programme at its prospective Lontra
Nickel laterite project in the Carajas Mineral Province of northern Brazil.  The
auger programme defined four priority anomalies of which two have strike lengths
of over 1,000m.  The majority of the anomalous holes ended in Ni mineralisation,
with 6 of the drill holes returning over 1% Ni near the surface. The Board is
confident that they have identified a significant nickel target that will now be
drilled tested to a greater depth to determine its economic potential.


The Lontra Project is situated in the Araguaia mobile belt, which flanks the
eastern margin of the Carajas Mineral Province of northern Brazil, just 80km
south of the major lateritic Ni project operated by Xstrata at Serra da Tapa
(inferred resource of 60Mt at 1.63% Ni and 0.06%) and 7km northwest of the Vila
Oito project, where Teck Cominco currently has a drilling programme underway.


Horizonte CEO Jeremy Martin said, 'These are highly significant nickel and
cobalt drill intersections and reinforce our belief of the economic potential of
the project. The wide spaced auger programme was planned to define large nickel
laterite targets such as at Serra da Tapa.  The initial results from the shallow
auger drill holes have returned good nickel values throughout the length of the
hole and ended in mineralisation.  The targets remain open to the north and
south.  The next stage is to test the mineralised zones with deeper drilling and
work towards developing an initial resource calculation.'


Horizonte initially identified a number of priority nickel targets at the Lontra
Project following a regional stream sediment sampling programme in the last
quarter of 2006. This was followed by regional soil sample programmes over the
seven target areas which identified the drill targets.



Detailed Discussion

The auger programme was carried out to evaluate the soil anomalies previously
reported (see PR 03/04/2007 - Acquisition of New Highly Prospective Nickel
Project).  Both the auger and soil programmes were carried out on wide spaced
sample grids (400m by 80m sample centres) consistent with the Company's
objective of exploring for major deposits. Auger drilling is a shallow +/- 12
metres drill method. The mineralised intersections based on the ICP analyses
(limited by a 1% Ni upper limit) are summarised below.


   Hole     Interval      From        To        Ni*         Co          Comment

   209         12m         4m        EOH       0.83%      0.05%       2m @ +1%Ni
   211         8m          8m        EOH       0.86%      0.08%       2m @ +1%Ni
   214         8m          4m        EOH       0.90%      0.04%       2m @ +1%Ni
   220         2m          4m         6m       0.59%      0.12%
   220         5m          6m        EOH       1.00%      0.10%       5m @ +1%Ni
   223         4m          4m        EOH       0.59%      0.09%
   224         2m          8m        EOH       0.60%      0.07%
   226         6m          6m        EOH       0.55%      0.03%
   227         5m          6m        EOH       0.76%      0.03%
   228         7m          4m        EOH       0.87%      0.03%
   231         4m          8m        EOH       0.82%      0.06%
   232         6m          6m        EOH       1.00%      0.05%       6m @ +1%Ni
   247        1.8m         8m        EOH       0.51%      0.01%
   257         9m          7m        EOH       0.54%      0.02%
   273         2m          6m         8m       0.54%      0.08%
   273         4m          8m        EOH       1.00%      0.06%       4m @ +1%Ni

    * Ni values with 1% upper limit due to analysis method. Results of automatic
                             overlimit re-runs awaited.



The results are highly encouraging with all the above drill holes having ended
in highly anomalous Ni +/- Co values at above cut-off for mineralisation.


Lateritic Ni deposits are characterised by the concentration of Ni oxides or
silicates within the weathering profile. However, there is often near surface
depletion which masks the mineralisation. This is demonstrated in the above
results with mineralisation in most holes only starting at several metres below
surface and in general with grades increasing with depth. Given the length of
the main two anomalies, which each straddle three lines separated by 400m and
wide auger spacing, it is considered that these targets represent ready drill
targets.


Another 14 auger holes are characterised by strong leaching in the upper parts
followed by highly anomalous results (+0.25% Ni) towards the bottom of the
holes. While these holes did not reach +0.5% Ni grades, the increase in Ni
grades with depth suggests that these areas may have been more intensely leached
and the mineralisation is deeper. These may reflect additional zones of
mineralisation although deeper auger programmes will be required to verify this
possibility.


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 ACME 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, with seven years of mining and management experience,
graduated with a degree in geology from the Camborne School of Mines, and an MSc
in mineral exploration from the University of Leicester and is a member in good
standing with 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]
David Paxton                 Hichens Harrison                Tel: [phone]
Hugo de Salis                St Brides Media & Finance Ltd   Tel: [phone]
John Frain/Fergal Meegan     Davy                            Tel:[phone]



Notes to Editors:


Horizonte Minerals Plc is an AIM listed mineral resources exploration group
focused on the discovery, appraisal and development of gold and base metal
deposits in Brazil and Peru.  The Company has two gold exploration projects in
Brazil, and one silver-zinc-lead project in Peru. The two Brazilian gold
projects, Tangara and Falcao, are located to the south of the highly prospective
Carajas Mineral Province. Both projects cover an area of approximately 300 sq km
and are centred over greenstone belts, with known gold mineralisation. The scale
of these project areas, the overall aerial extent of the mineralised system and
the high density and magnitude of related gold anomalies (identified in river
sediments, surface soils and rocks), indicate the potential for multiple deposit
discoveries.


The silver-zinc-lead project is located in the historic mining district of Cerro
de Pasco in Central Peru. Sampling and limited historic drilling on this project
has demonstrated the high grade potential of this project.


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