Mr. Robert Wares reports

NIOGOLD DRILLS 15.8 METRES AT 4.95 G/T AU AT MARBAN

Niogold Mining Corp. has provided the results of 18 new diamond drill holes of its infill program on the modelled open-pit shell of the Marban deposit, located on its 100-per-cent-owned Marban block property in the Malartic gold camp, Abitibi district, Quebec. The drill program was recently increased from 40,000 metres to 50,000 m (see news release dated Feb. 19, 2015).

Drilling highlights from this set of holes include:

• 28.1 metres at 1.38 grams per tonne Au in hole MB-14-359 at a vertical depth of 245 m;
• 1.2 metres at 74.38 g/t Au in hole MB-14-369 at a vertical depth of 95 m;
• 27.6 metres at 1.5 g/t Au in hole MB-14-371 at a vertical depth of 130 m;
• 0.8 metre at 32.65 g/t Au in hole MB-14-371 at a vertical depth of 365 m;
• 15.8 metres at 4.95 g/t Au, including 4.2 metres at 12.58 g/t Au, in hole MB-14-372 at a vertical depth of 120 m;
• 9.8 metres at 6.07 g/t Au in hole MB-14-372 at a vertical depth of 275 m;
• 5.2 metres at 5.26 g/t Au in hole MB-14-374 at a vertical depth of 50 m.

All intersections reported in this news release were comparable or higher grade than anticipated intersections from the existing in-pit block model, except for new zones of mineralization not included in the current block model, such as 0.8 m at 32.65 g/t Au in hole MB-14-371, and other intersections labelled new in the attached table.

Robert Wares, Niogold's president and chief executive officer, commented: "These results show the broad range of widths and grades that reflect high-grade shoots surrounded by lower-grade halos that characterize the wider, mineralized shear zones in the Marban deposit. Higher-grade short intercepts, such as 74.38 g/t Au over 1.2 m in hole MB-14-369, represent richer, narrower shears that will help improve the average grade of the overall resource. The added 10,000 metres to the program will allow us to increase drilling density, especially on the eastern part of the pit shell, which will yield a more robust resource model scheduled to be released by early [fourth quarter] 2015."

Results from holes MB-14-357 to MB-14-374 are summarized in the attached table.

             Hole   
Hole       length   From     To   Length    Grade     Zone
               (m)    (m)    (m)      (m) (g/t Au)

MB-14-357     507   43.1   46.3      3.2      1.4    Grano
MB-14-358     507  100.6  101.6        1    23.05       Hw
                   175.6  176.8      1.2    11.97        2
                   194.8  212.8       18     1.14        E
                   235.6  236.4      0.8    22.91      New
                   446.6  447.8      1.2     7.57        T
MB-14-359     441  122.9    128      5.1     1.36        2
                     178  181.2      3.2     3.48        E
                   202.9    222     19.1     1.02       D3
                     315  343.1     28.1     1.38    C-A-P
                   356.3  365.4      9.1     1.67        V
incl               364.4  365.4        1     8.97        V
MB-14-360   514.8  449.7  451.2      1.5     4.48      C-A
                   459.8  469.5      9.7      0.8        T
MB-14-361     270   96.8   97.3      0.5     26.2        E
                   159.9  172.6     12.7     1.34      C-A
MB-14-362     153     53     54        1     0.72      New
MB-14-363     351  251.2  253.6      2.4     3.16        A
MB-14-364     306  159.6  160.6        1     6.59      New
                   233.3  237.6      4.3     3.11      New
MB-14-365     255  135.2  136.4      1.2     5.44      New
                   143.3  150.9      7.6     0.89        C
MB-14-366     201  107.5  114.5        7      0.9        C
                   124.1  127.5      3.4      1.5        A
MB-14-367     234  122.4  133.8     11.4     0.54        C
MB-14-368     405    150  155.9      5.9     1.33       D3
                   225.1  269.2     44.1     0.78    B-C-A
MB-14-369     363  129.4  130.6      1.2    74.38        E
                     194  207.1     13.1     1.34     B-C2
MB-14-370     417  265.5  288.1     22.6     1.28      C-P
MB-14-371     450  139.2  166.8     27.6      1.5        E
                     172  173.4      1.4    15.01        E
                   320.6  327.2      6.6     1.38        C
                   350.3  352.6      2.3     4.97        P
                   356.2  367.5     11.3     0.99      M-V
                   401.7    407      5.3     5.11        H
                   423.4  424.2      0.8    32.65      New
MB-14-372     414  133.9  149.7     15.8     4.95        E
incl               134.9  139.1      4.2    12.58        E
                   274.6  299.3     24.7     1.44        C
incl               284.5  285.6      1.1    13.15        C
                   316.7  326.5      9.8     6.07        M
MB-14-373     279  184.6  186.1      1.5     2.72    Grano
MB-14-374     510   57.9   63.1      5.2     5.26    Grano
incl                61.8   63.1      1.3    15.85    Grano
                   346.5  348.5        2     6.48        D

(1) Marban grid

These 18 new holes have a cumulative length of 6,578 m, and they infill the centre-east part of the deposit over a strike length of 450 metres. To date, the results of 33 holes of the program have been released for a total of 11,568 metres. The infill program is progressing rapidly with three drills and is 50 per cent complete with about 25,000 metres drilled. Further assay results will be released as they become available.

Technical information, quality assurance/quality control and qualified persons

Drill orientations are roughly perpendicular to dip of mineralized zones, and true widths of mineralized zones represent minimum 90 per cent of reported core intervals.

Diamond drill holes were drilled with NQ-size core, except for holes that traversed underground workings, which were completed using BQ-size core. The core was sealed and delivered by the drilling contractor to Niogold's facilities located at the Norlartic mine site. The core was photographed for reference and logged, and mineralized sections were sawed in half. Sample lengths vary between 0.5 m to 1.5 m. Half-core samples were bagged, sealed and delivered to Actlabs in Ste. Germaine Boule, Que., which is an accredited laboratory. The remaining core is stored on site for reference. Samples were assayed by the fire assay method using an atomic absorption finish on a 50-gram pulp split. A quality assurance and quality control program (QA/QC) was implemented by Niogold and the laboratory to insure the precision and reproducibility of the analytical method and results. The QA/QC program includes the insertion of standards, blanks and field duplicates in the sample batches sent to the laboratory, and a systematic reassaying of samples returning values above three g/t Au by fire assay using a gravimetric finish. As well, pulps grading above 0.5 g/t Au or mineralized intervals are sent to Bourlamaque Assay Laboratories Ltd. in Val d'Or for check assaying.

Drill program design and monitoring, core logging, and sample preparation are being executed at Niogold's facilities in Val d'Or, under the supervision of Yan Ducharme, MSc, PGeo (OGQ), Niogold's vice-president, exploration, and a qualified person as defined by National Instrument 43-101. The quality assurance/quality control program utilized is consistent with NI 43-101 and industry best practice standards. This news release was prepared by Mr. Ducharme.

We seek Safe Harbor.