Exploration Results On Kierens Deposit Opens Ground

October 8, 2013

Val-d'Or, Quebec -- NioGold Mining Corporation (TSX-V: NOX) (OTCQX: NOXGF) ("NioGold") is pleased to announce the results of 21 holes drilled on its 100% owned Marban Block property, located in the prolific Abitibi gold mining district, Quebec. The Marban Block property hosts three deposits (Marban, Kierens and Norlartic) which collectively host estimated measured and indicated resources of 1,531,000 ounces gold (32,127,000 tonnes grading 1.48 g/t gold) plus inferred resources of 599,000 ounces gold (16,478,000 tonnes grading 1.13 g/t gold).

The drilling was targeted to infill the inferred resource of the Kierens and Norlartic deposits, as well as the 450 meter gap area between the Norlartic and Kierens deposits, and also the gap between the Norlartic and Marban deposits. The drilling took place between February and May, 2013, and comprised 9,271 meters of drilling with up to four drills operating on ice bridges.

Highlights from drilling inside the inferred resource of the Kierens deposit are:

• 9.12 g/t Au over 1.9 m in hole FC-13-013 at a vertical depth of 230 m.
• 1.72 g/t Au over 22.9 m which include 2.93 g/t Au over 5.3 m in hole FC-13-018 at a vertical depth of 530 m.
• 3.04 g/t Au over 4.4 m in hole FC-13-020 at a vertical depth of 495 m.
• 2.65 g/t Au over 18.7 m which include 5.19 g/t Au over 6.9 m in hole FC-13-025 at a vertical depth of 360 m.

Highlights from drilling between the Kierens and Norlartic deposits are:

• 2.05 g/t Au over 16.5 m in hole FC-13-012 at a vertical depth of 330 m.
• 15.97 g/t Au over 1.2 m in hole FC-13-015 at a vertical depth of 605 m.
• 10.52 g/t Au over 0.6 m in hole FC-13-021 at a vertical depth of 90 m.

Highlight from drilling inside the inferred resource of the Norlatic deposit is:

• 0.91 g/t Au over 19.0 m in hole NL-13-081 at a vertical depth of 180 m.

Drill holes results:

1 Norlartic grid coordinates
2 MZ = Kierens main zone, HW = In the hanging wall of the Kierens or Norlartic deposits, FW = In the footwall of the Kierens deposit, NNZ = North North zone

"The latest results are a step forward in terms of adding to and upgrading the project resource base", said NioGold's President and CEO, Mike Iverson. "At Kierens, the bulk of the current resource is above 500 vertical metres. Hole FC-13-015 now suggests strong potential for extension of this deposit to depth. At Norlartic, Hole MB-13-341 extends the Norlartic trend over a strike of 1,200 metres and appears to confirm a convergence of this zone towards the hanging wall of the Marban deposit. In all, the new drilling has identified some very promising areas with the potential to generate new resources, particularly in proximity to the underground drifts connecting the Kierens and Norlartic former mines."

A map showing the location of the new holes is available at:

http://www.niogold.com/projects/maps/Norlartic-Deposit-Holes-Location.jpg
http://www.niogold.com/projects/maps/Kierens-Deposit-Holes-Location.jpg
http://www.niogold.com/projects/maps/DDH-2013-Drilling.jpg

Two longitudinals are showing the new best results obtained on the Kierens and Norlartic deposits are available at:

http://www.niogold.com/projects/maps/Norlartic-Deposit-Longitudinal-Section.jpg
http://www.niogold.com/projects/maps/Kierens-Deposit-Longitudinal-Section.jpg

Technical Info, QA/QC and Qualified Persons

Reported intervals are in core lengths but are anticipated to approximate true width, except where structural complexities occur, as the holes were drilled near perpendicular to the principal local structural orientation.

Diamond drill holes were drilled with NQ-size core in order to obtain larger sample volumes of the mineralised zones, except for holes that traversed underground workings which were completed using BQ-size core. The core was sealed delivered by the drilling contractor to NioGold's facilities located at the Norlartic mine site. The core was photographed for reference, logged and mineralised sections were sawed in half. Sample lengths vary between 0.5 to 1.5 metres. Half core samples were bagged, sealed and delivered to Techni-Lab in Ste-Germaine Boulé, Quebec, 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 re-assaying of samples returning values above 3 g/t Au by the fire-assay method using a gravimetric finish. As well, pulps grading above 0.5 g/t Au are sent to Bourlamaque Assay Laboratories Ltd. in Val-d'Or for check assaying.

The drilling program is conducted under the supervision of Yan Ducharme, M.Sc., P.Geo. (OGQ), the NioGold's Vice-president Exploration and a Qualified Person as defined by National Instrument 43-101. This news release was prepared by Mr. Ducharme.

NioGold Mining Corporation - « On Canada’s Golden Highway »

NioGold Mining Corporation is a mineral exploration company focused on gold. The Company's flagship projects are located in the Cadillac - Malartic - Val-d'Or region of the prolific Abitibi gold mining district, Quebec. The Cadillac, Malartic and Val-d'Or mining camps have produced over 45 million ounces of gold since the 1930's and presently encompass seven producing gold mines including Osisko Mining's new Canadian Malartic operations. NioGold's land holdings within the Abitibi presently cover 130km2 and encompass four former gold producers, namely the Norlartic, Kierens (First Canadian), Marban and Malartic Hygrade mines that collectively produced 640,000 ounces of gold.

NioGold's experienced and qualified technical team are overseeing the advancement of these projects, with current drill programs underway targeting expansion of the resource base.

NioGold invites you to visit the company website at www.niogold.com.

For information on NioGold Mining Corporation contact:

Michael A. Iverson, President & CEO
miverson@niogold.com
Tel: (604) 856-9887

Dale Paruk, Vice-President
dparuk@niogold.com
Tel: (604) 662-4505
Toll-free: (877) 642-6200