RNS Number:6431P
Mano River Resources Inc
11 September 2003


                            MANO RIVER RESOURCES INC.

                                  NEWS RELEASE

11 August 2003
No: 2003/18
TSX-Venture Exchange  (Trading Symbol: MNO)
London Stock Exchange - AIM (Trading Symbol: MANA)


 GOLD SYSTEM EXTENDED AND HIGH GRADE DRILL TARGETS DEFINED AT YIRISEN PROJECT,
                                  SIERRA LEONE

Summary

   *Drill targets defined beneath high grade gold zone with best trench
    intersect of 6.4m@23g/t

   *Total inferred strike of Yirisen gold system extends over 4km and remains
    open

Mano River Resources Inc. ("Mano River") announces that a review and analysis of
historic data has defined high grade drill targets at the Yirisen gold project
and significantly extended its potential strike length. The Yirisen project is
located 150km east of Freetown, within Mano River's North Pampana Exclusive
Prospecting Licence (EPL) which, together with the Company's contiguous South
Pampana EPL targets crustal scale gold mineralised shear zones across 140km2 of
the southern end of the Sula Mountains greenstone gold belt. The EPLs include
stretches of the Pampana River which comprised one of Sierra Leone's richest and
oldest alluvial gold mining districts.

Reconnaissance work undertaken in May 2003 by independent consultants ACA Howe
International Ltd, indicates that artisanal mine workings currently extend for
1.5km to the southwest of the project to depths of up to 15m. The total inferred
strike length for the Yirisen gold system is currently estimated to be in excess
of 4km and remains open along strike in both directions. A targeted follow up
exploration programme including drilling, trenching and soil surveying is
currently being planned and, subject to financing, will be undertaken in order
to test the vertical continuation of gold mineralization evident within trenches
and to test the strike extension of the mineralized system as indicated by
geochemical anomalies. Detailed maps of the project are available on the
following webpage http://www.manoriver.com/mano/projects/gold_sl_pampana.shtml.

On the subject of the results from the historic survey data

Mano's CEO, Dr Tom Elder comments: "The availability of such a comprehensive
exploration database for a project which exhibits the apparent high potential
seen at Yirisen is rare. The extensive gold in soil anomalies, which indicate
the gold system is open along strike and which are coincident in places with
high grade trench and drill results, means the Yirisen gold project is at the
drill ready stage. Mano's benchmark for gold exploration is high grade deposits
grading at least 4g/t with potential for greater than one million ounces and
amenable to open pit mining. Such deposits typically require large structures in
which to form, carry significant surface geochemical signatures and are proximal
to extensive primary or secondary artisanal gold workings. Certain parallels in
terms of the style and extent of shear zone hosted mineralization at Yirisen can
be drawn with Mano River's KGL gold deposit, located approximately 350km to the
south east, in western Liberia, where an initial indicated and inferred gold
resource of 610,000 ounces at an average 4.8 g/t has been defined. The results
from the historic database indicate that Yirisen has many of the hallmarks of a
significant gold deposit with excellent exploration potential".

BACKGROUND INFORMATION

Historic database

Three sets of historic data have been integrated into Mano River's Geographical
Information System (GIS) of the Pampana district that includes satellite
imagery, structural analysis and mapping. The historic results are detailed
below.

i) Geological Survey of Sierra Leone - 1958

Hard rock gold mineralization was first noted at Yirisen by the Geological
Survey of Sierra Leone in 1958 as part of a programme of mapping and sampling of
the country's major hard rock artisanal gold mines. The Survey identified seven
north easterly trending sub-vertical lodes of gold mineralised quartz veining,
averaging 150m in length. Sampling by the Survey returned numerous gold
intersections in trenches, the significant values being listed in Table 1 below.

Table 1.

      Lode                            Length metres            g/t Gold
    -----------                        ------------            ----------

     3 mid S                                2.69                 20.97

       4N                                   2.29                 44.08

      4midN                                 2.36                 15.92

      4mid                                  6.38                 22.96

      4midS                                 5.28                 24.80

      5mid                                  0.69                 83.27

       7N                                   1.37                 20.97

       7S                                   0.46                 30.61
    -----------                       ------------            ----------

ii) Northern Province Prospecting Venture (NPPV) - mid 1960s

In the mid 1960s the NPPV undertook mapping, soil geochemical surveying,
trenching and drilled three holes at Yirisen giving the results listed in Table
2 below.

Table 2.
 Hole    From (m)    To (m)    Intercept (m)   Au (g/t)    Ag (g/t)
-------   --------    ------      ---------      ------     --------
 K-1         86.04     86.72            0.67        5.51       74.69
 K-1         89.18     89.69            0.51       24.49      277.96
 K-1         92.35     92.74            0.38        7.65       42.55
 K-1         95.39     95.48            0.09        7.96       94.29
 K-2        159.03    159.11            0.08       14.69       22.96
 K-3         11.53     11.84            0.30        4.90       46.53
 K-3         28.37     28.73            0.36        3.37      102.55
 K-3         33.45     33.78            0.33       31.53      221.94
 K-3         41.20     41.30            0.10        3.98        7.96
 K-3         57.61     57.99            0.38       11.63        7.35
 K-3         63.60     63.96            0.36        0.31        0.92
-------     --------    ------       ---------      ------    --------

Mano River considers it significant that drill hole K-1 shows narrow high grade
intercepts occurring over a drilled width of some 20m. The distribution of
results from the drill holes suggests that only zones containing visible gold
may have been sampled, while the host rock material between these intercepts
which contains pervasive sulphide mineralization and possible disseminated gold
mineralization appears to have not been sampled. Based on maps prepared by NPPV,
it is considered likely by Mano River that drill hole K-2 was collared too far
east to have intersected the zone of mineralization.

iii) United Nations Revolving Fund (UNRF) - mid 1980s

Between December 1984 and May 1987 the United Nations Revolving Fund (UNRF) for
Natural Resources Exploration undertook an extensive regional programme of gold
exploration in the Pampana district of the southern Sula Mountains. The
programme was designed to identify the source rocks of the alluvial gold being
mined extensively by artisanal miners. Stream sediment sampling (1,087 samples),
soil sampling (2,474 samples), topographic surveying, mapping, pitting and
trenching were undertaken. Following verification of stream sediment anomalies,
two areas namely, Yirisen and Masamank (South Pampana EPL), were targeted for
detailed soil sampling with a total of 1,477 sample sites.

At Yirisen soil sampling grids were extended 2.5km north-eastward from the
northern limit of known gold mineralization. Two anomalous gold zones were
defined by a 50 parts per billion (ppb) gold in soil contour. The most southerly
anomaly is comprised of three parallel mineralised trends, the most easterly of
which continues for 700m from the mapped extent of the Yirisen project. Some
1,200m north-east of the known mineralization a second 1,500m long by 200m wide
gold anomaly extends along the contact between amphibolite and talc schist
lithologies. A second grid, 400m east of the main Yirisen grid at Kalmoro,
identifies a 750m long by 500m wide northeast trending anomalous gold zone,
parallel to the trend of the Yirisen gold system.

About Mano River - Leader in emerging West African gold province

Mano River Resources Inc, is a Tier-1 TSX-V and AIM listed gold and diamond
exploration company which has assembled an exceptional portfolio of hard rock
gold and kimberlite diamond exploration licences totalling 2,367km2 across some
of the most prospective terrain in Sierra Leone, Liberia and Guinea and within
which significant deposits are already being delineated. Based on the quality
and quantity of gold properties assembled to date Mano River is extremely well
placed to benefit from its position as a pioneer in what has the potential to
develop into a world class Archaean gold province, potentially similar in scale
and productivity to the Lake Victoria greenstone goldfields in Tanzania.

On behalf of the Board of Mano River Resources Inc.

Tom Elder

President and CEO

For further information on Mano River Resources and its exploration programme,
you are invited to visit the Company's website at www.manoriver.com or contact
one of the following:

    Tom Elder             President and CEO          UK +44 (0) 1235 810 740     
    Guy Pas               Co-Chairman       Switzerland +41 22 758 2151                      
    Anthony Rhatigan      Co-Chairman            Mobile +44 (0) 7785 297 348
    Raz Hussein           Controller             Canada +1 (604) 689 1700                       
    Gary Middleton        Britton Financial PR       UK +44 (0) 20 7251 2544                                            

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