Petro Horizon Energy Corp. - Brazil Lake Lithium and Rare Earth Metals Project - Rubidium ("Rb") Beryllium and Tantalum and Drill Results - Core Results Feature 2,625ppm Rb Over 4.2 Meters

By Petro Horizon Energy Corp., PRNE
Monday, March 1, 2010

VANCOUVER, March 2, 2010 - PETRO HORIZON ENERGY CORP. (TSXV.PHE) (PRZCF.OTCBB) (PH0.FRANKFURT),
is pleased to announce that it has released previous assay results from
the Brazil Lake Lithium and Rare Earth Metals Property. Petro Horizon
announced on February 10, 2010, that the Company has executed a Letter of
Intent ("LOI"), dated February 5th, 2010, with Champlain Mineral Ventures
Ltd ("Champlain"), a private Nova Scotia based corporation, to earn up to a
75% undivided ownership interest in the Property in southern Nova Scotia.

BRAZIL LAKE PROPERTY (Lithium and Rare Metals)

Champlain has released assay results from 15 drill holes for several rare
metals associated with its lithium discovery including rubidium, beryllium
and tantalum.

Hole No.02-15 in the lithium pegmatites returned values up to 1398 parts
per million ("ppm") Rb over 15.3 meters including 2625 parts per million Rb
over 4.2 meters. Hole No.93-4 returned values up to 803 ppm Rb over 41.8
meters including 1,456 ppm Rb over 5.2 meters. Hole No.93-2 returned values
up to 928 ppm Rb over 24 meters including 1,376 ppm Rb over 7.9 meters.

Hole No.02-24 in the lithium pegmatites returned values up to 200 parts
per million beryllium ("Be") over 35.8 meters including 304 parts per million
Be over 14.9 meters. Hole No.93-2 returned values up to 179 ppm Be over 24.0
meters including 388 ppm Be over 7.9 meters. Hole No.02-15 returned values up
to 157 ppm Be over 15.3 meters including 994 ppm Be over 2.1 meters.

Hole No.93-2 in the lithium pegmatites returned values up to 102 parts
per million tantalum ("Ta") over 24 meters including 541 parts per million Ta
over 1.0 meter. Hole No.93-5 returned values up to 96 ppm Ta over 32.9 meters
including 160 ppm Ta over 7.3 meters. Hole No.02-04 returned values up to 63
ppm Ta over 35.8 meters including 82 ppm Ta over 14.9 meters.

Drill results to date have identified two lithium and rare earth metal
bearing pegmatite dikes that appear at surface and are up to 20 meters wide
and having exposed lengths up to 300 meters long. The deepest drill hole
intersected the dikes at 50 meters depth. Both pegmatites remain open at
depth and future drilling will attempt to extend the depth of the dikes to
100 or 150 meters and to determine if metal grades increase with depth.
Three other potential pegmatites have been indicated through geochemical
surveys. Further geochem surveys, exploration and subsequent drilling are
planned to define other pegmatite dikes on the property indicated by
pegmatite float fields.

Main assay results for the rare earth metals are presented in the table
below, showing only pegmatite results.

    -------------------------------------------------------------------------
                                                      Rb       Be
                                                      ppm      ppm
                        From      To        Interval  equals   equals   Ta
    Hole No.  Section   (meters)  (meters)  (meters)  g/t      g/t      ppm
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    NORTH DIKE
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    93-1        1+65N     89.11      95.4      6.29      674      123    107
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    93-2        1+65N     34.81     58.85     24.04      928      176    102
    -------------------------------------------------------------------------
                          38.32     48.43     10.11     1103      361    100
    -------------------------------------------------------------------------
                          41.85     49.78      7.93     1376      388    103
    -------------------------------------------------------------------------
                          51.55     55.05       3.5     1210       20     64
    -------------------------------------------------------------------------
                          56.86     57.72      0.86      110        0    541
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    93-3        1+55N     90.07     94.52      4.45      802      218     91
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    93-4        1+05N     47.10      88.9      41.8      803      113     69
    -------------------------------------------------------------------------
                          51.08     71.16     14.08      822      238     70
    -------------------------------------------------------------------------
                          66.07     74.39      8.32     1079       17     65
    -------------------------------------------------------------------------
                          82.83      88.9      5.15     1456       48     72
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    93-5        0+70N     38.26     71.11     32.85      779      109     96
    -------------------------------------------------------------------------
                          39.26     46.37      7.11      703       48     96
    -------------------------------------------------------------------------
                          43.65     50.91      7.26                      160
    -------------------------------------------------------------------------
                          50.91     55.43      4.52      643      178     50
    -------------------------------------------------------------------------
                          53.50     64.74     11.24      807
    -------------------------------------------------------------------------
                          53.50     57.74      4.24               323
    -------------------------------------------------------------------------
                          62.20     65.85      3.65               189
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-03       0+10N     47.70      61.8      14.1      481      115     42
    -------------------------------------------------------------------------
                           51.7      59.1       7.4      462      177     26
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-04       0+45N      51.7      87.5      35.8      903      200     63
    -------------------------------------------------------------------------
                           51.7      66.6      14.9      785      304     82
    -------------------------------------------------------------------------
                           54.9        78      23.1      845      235     58
    -------------------------------------------------------------------------
                           64.9      70.6       5.7     1598      162     26
    -------------------------------------------------------------------------
                           81.3        87       5.7      608       68     59
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-15       1+20N      30.9      46.2      15.3     1398      157     23
    -------------------------------------------------------------------------
                           30.9      34.2       3.3      198       29     26
    -------------------------------------------------------------------------
                           34.2      37.4       3.2     2513
    -------------------------------------------------------------------------
                           38.5      42.7       4.2     2625
    -------------------------------------------------------------------------
                           42.7      44.8       2.1               994
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-16       1+70N      32.3      41.3      9.00     1404      218     11
    -------------------------------------------------------------------------
                           37.4      41.3       3.9     2406      108
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-23       0+80N     29.00      43.2      14.2      814       37     33
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    02-24       0+40N      21.9     33.00      11.1     1136      139     54
    -------------------------------------------------------------------------
                                                      Rb       Be
                                                      ppm      ppm
                        From      To        Interval  equals   equals   Ta
    Hole No.  Section   (meters)  (meters)  (meters)  g/t      g/t      ppm
    SOUTH DIKE
    02-17       4+70S     21.47     25.25      3.85     1005       34     43
    02-18       4+55S     30.28     36.86      6.58      408      121     80
    02-19       4+25S        29      35.9       6.9     1606       64     70
    02-22       3+70S      15.1      21.1      6.00    11.81      241    166 

     Note:  One ppm equals one g/t and 1 per cent equals 10,000 ppm. True
           widths are approximately 77 per cent of intersected widths.

All drill core samples were assayed at Xral Laboratories in Toronto,
Ontario
.

John F. Wightman, M. Sc., FGAC, P. Eng., a Qualified Person as defined by
NI 43-101 is responsible for the technical information contained in this
release.

On Behalf of the board of directors,

"Ron Bourgeois"

Ron Bourgeois, President

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For further information: Petro Horizon Energy Corp, Vancouver, BC, Tel:
+1-604-488-3900, email: info@petrohorizonenergy.ca

For further information: Petro Horizon Energy Corp, Vancouver, BC, Tel: +1-604-488-3900, email: info at petrohorizonenergy.ca

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