Mr. Ioannis Tsitos reports

GOLDSOURCE EXPANDS SALBORA DISCOVERY AT EAGLE MOUNTAIN

Goldsource Mines Inc. has released additional results from the continuing exploration program at the Salbora target at its Eagle Mountain gold project in Guyana. The company has received assay results from additional shallow auger drilling, deeper Geoprobe sonic drilling and additional trenching completed at Salbora, which is located approximately 1.5 kilometres northwest of the Eagle Mountain deposit. Results from this additional work in saprolite has significantly expanded the mineralized footprint of this target, which now measures approximately 500 metres in length and 100 metres wide, and open in most directions. Exploration work will continue at Salbora to better define the mineralized envelope in this area in the fourth quarter of 2018.

Yannis Tsitos, president, commented: "The additional results from Salbora are encouraging and show potential to further expand the near-surface saprolite gold resource at the Eagle Mountain gold project. We continue with drilling and trenching to follow up, both laterally and at depth, on the higher-grade, near-surface mineralized saprolite intercepted in all defined targets. The results from the ongoing trenching and drilling will be included in an updated Eagle Mountain resource within the next six months. Deeper diamond holes are planned at Salbora to provide a better understanding of the gold mineralization and potential size of this new discovery."

The most significant result for drilling was EMC18-095 with 15.0 metres grading 3.84 grams per tonne gold and EMC18-094 with 17.0 metres grading 1.85 g/t gold. Both holes intercepted near-surface, high-grade gold mineralization in saprolite. The most significant result for trenching was TRBS18-005 with 28.0 metres grading 2.88 grams per tonne gold and TRBS18-011 with 37.0 metres grading 1.70 g/t gold. The attached table states the more significant results for this release.

            SALBORA GEOPROBE/SONIC DEEPER DRILL HOLES 

Hole ID        Drill type**  From (m)  To (m)  Interval (m)   Au (g/t)*

EMC18-094            Core        0.0    17.0          17.0       1.85
Incl.                            4.0     8.0           4.0       4.66
EMC18-095            Core        0.0    15.0          15.0       3.84
Incl.                            0.0     6.0           6.0       5.29
EMC18-096            Core        0.0     8.4           6.0       1.00
Incl.                            1.0     2.0           1.0       3.81
EMC18-097            Core        0.0     4.0           4.0       1.04
EMC18-098            Core        0.0     2.0           2.0       1.60
EMC18-099            Core        0.0     2.0           2.0       0.60
EMC18-102            Core        1.0     3.0           2.0       0.36
EMC18-105            Core        0.0     1.0           1.0       0.70

            SALBORA HAND AUGER SHALLOW DRILL HOLES 

Hole ID      Drill type** From (m)  To (m)  Interval (m)    Au (g/t)*

AS18-136          Auger       1.0     4.0           3.0        3.21
AS18-137          Auger       0.0     1.0           1.0        0.48
AS18-138          Auger       0.0     6.0           6.0        0.99
AS18-139          Auger       0.0     6.0           6.0        0.50
AS18-140          Auger       0.0     2.0           2.0        0.48
AS18-152          Auger       2.0     6.0           4.0        0.39
AS18-153          Auger       1.0     5.0           4.0        0.60
AS18-154          Auger       0.0     2.0           2.0        0.32
AS18-182          Auger       1.0     2.0           1.0        2.03
AS18-183          Auger       0.0     3.0           3.0        0.70
AS18-184          Auger       0.0     3.0           3.0        0.80
AS18-185          Auger       0.0     2.0           2.0        2.73
AS18-186          Auger       0.0     3.0           3.0        1.42
AS18-196          Auger       1.0     3.0           2.0        0.35
AS18-198          Auger       0.0     2.0           2.0        2.78
AS18-207          Auger       0.0     2.0           2.0        2.09
AS18-320          Auger       0.0     3.0           3.0        1.10
As18-329          Auger       0.0     3.0           3.0        1.02

                       SALBORA TRENCHING

Trench ID   Sample type   From (m)  To (m)  Interval (m)   Au (g/t)*

TRSB18-005      Channel       0.0    28.0          28.0       2.88
Incl.                        17.0    20.0           3.0      23.70
TRSB18-006      Channel      24.0    25.0           1.0       1.27
                Channel      40.0    41.0           1.0       0.95
                Channel     122.0   123.0           1.0       0.59
TRSB18-009      Channel       0.0     7.0           7.0       0.43
TRSB18-010      Channel      22.0    24.0           2.0       0.88
TRSB18-011      Channel       0.0    37.0          37.0       1.70

Notes for all tables: 
All numbers rounded. 
All reported holes are drilled vertical.
Assumed to be near-true widths.
* Cut-off grade of 0.3 g/t Au.
** Core is by Geoprobe "sonic" drill and depths are limited to the 
presence of groundwater horizon and floating boulders within the 
weathered saprolite layer. Auger holes are a maximum of six metres 
in depth.

All geochemical analyses were completed by Actlabs Guyana Inc. in Georgetown, Guyana.

The following are drill holes and trenches that were below the company's cut-off grade: EMC18 negative 93, 100, 101, 103, 104 and 106, AS18-125 to 135, AS18-141 to 151, AS18-155 to 181, AS18-187 to 195, AS18-199 to 206, AS18-208 to 211, AS18-321 to 328 and AS18-328 to 333, TRSB18-003 to 004 and 007 to 008.

To date, Goldsource has completed 14 deeper core holes (160 metres), 100 shallow auger drill holes (380 metres) and 11 trenches (928 metres) at Salbora. All drill hole results with gold mineralization were intercepted within near surface within saprolite.

The Salbora discovery is located on a northwest-southeast regional trend with a minimum of three kilometres length and which is in alignment with significant historic alluvial gold operations. The company plans to complete further exploration work including deeper diamond drilling to be initiated in Q4 2018.

The Coolie area along the same trend as Salbora, which is to the north has not yet been tested by Goldsource. Gold in saprolite and hard rock at the Coolie area was discovered concurrently with the Eagle Mountain deposit by Anaconda Mining in the 1940s. More recent (1995 to 2009) drilling by Golden Star and Iamgold discovered near-surface, high-grade mineralization. Work by the company is planned for Q4 2018 for define extensions to Salbora.

The cumulative results from Salbora and the associated regional trend are encouraging and warrant follow-up exploration work to determine if resources can be delineated for inclusion into the continuing prefeasibility study for the Eagle Mountain gold project (see company's news release dated May 24, 2018, and July 12, 2018). Subsequent to the completion of this drill program, the company plans to release an updated resource estimate within the next six months.

The qualified person under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects for this news release is N. Eric Fier, CPG, PEng, chief operating officer and executive chairman for Goldsource, who has reviewed and approved its contents.

About Goldsource Mines Inc.

Goldsource Mines is a Canadian resource company working aggressively to develop its advanced-stage, 100-per-cent-owned Eagle Mountain saprolite and hard-rock gold project in Guyana, South America. From 2016 to 2017, through a gravity pilot plant initiative, the company completed testing on gravity-only gold production and both dry and wet mining open-pit techniques. Goldsource is now focused on delivering feasibility studies to achieve large-scale gold production at Eagle Mountain.

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