Ms. Cynthia Le Sueur-Aquin reports

Laurion ANNOUNCES SUCCESSFUL COMPLETION OF SENSOR-BASED ORE SORTING CAMPAIGNS FROM THE SURFACE STOCKPILE AT THE ISHKODAY PROJECT

Laurion Mineral Exploration Inc. has completed two test campaigns of sensor-based ore sorting from the Sturgeon River mine surface stockpile. The testwork was completed by the Saskatchewan Research Council (SRC).

Stated Cynthia Le Sueur-Aquin, president and chief executive officer of Laurion: "The Ishkoday stockpile mineralization responds very well to both laser and colour sensor-based sorting. We are optimistic that laser and colour sensor-based sorting will reduce downstream processing costs. During the tradeoff study, it became apparent that if mill throughput rates are low (250 to 1,000 t/day), the cost of ore sorting could be prohibitive. Capex and opex savings can be anticipated with further definition of inground resources that will warrant a processing plant that will process more than 1,000 t/day. Sensor-based sorting may very well improve the economics of the project and result in a more compact processing facility. If the stockpile at the Ishkoday site is to be representative of the host rock from No. 1 and No. 3 gold-bearing veins on the property, the assumption is that if sensor-based sorting can be successfully implemented on the stockpile, then it will likely be applicable to potential unmined resources in the vicinity of the mine area."

The first test campaign was based on samples from the stockpile sent for ore sorting targeted gold bearing minerals based on visual inspection and were shipped in bags categorized by their mineral content. The sampling's objective was to test the amenability of sorting particles with X-ray transmission (XRT) which sorts by difference in particle density combined with laser illumination (laser technology) sorting which utilizes a sensor to detect the light diffraction reflected from particles. Both technologies could select high grade particles to some extent, but the laser technology proved to be more effective.

The XRT testwork indicated a potential to reject 30 per cent of the coarse particles and accept 70 per cent while upgrading the sample by 15 per cent (from 5.9 g/t head grade to 7.8 g/t head grade), with a sorting efficiency of 72 per cent (sorting efficiency is the number of particles above cut-off grade that report to the accepts pile divided by the total number of particles that are above cut-off grade). These results are sub-par and are likely a result of minimal particle density differential between gangue and mineralization.

Laser illumination sorting showed more promising results, since much of the gold appears to be associated with quartz in the mineralized samples tested. The laser sorting resulted in upgrading the sample by 75 per cent (from 5.9 g/t head grade to 10.4 g/t head grade) with a sorting efficiency of 74.4 per cent.

The second test campaign's sample was a large sample taken from the stockpile with an excavator, crushed and split before shipping to SRC. The second sample is more representative of the mineralization in the stockpile. This sample was washed and screened out to material below 10 millimetres (generally considered unsortable in this process). The amount of minus 10 mm material made up approximately 50 per cent of the mass of the sample. One hundred plus 10 mm particles were then selected at random to test laser and colorimetric sensors. A semi-empirical model for the laser sorter was established that indicated 69 per cent of the mineralization could be rejected as waste while only losing 0.6 per cent of the gold to the reject pile. The testwork upgraded the mineralization by 220 per cent (from 2.63 g/t head grade to 8.42 g/t head grade) which exceeded expectations.

Similar results came from the colorimetric testing with a reject rate of 60 per cent with a loss to the reject pile of 0.94 per cent of the gold and an upgrading of 145 per cent (from 2.63 g/t head grade to 6.44 g/t head grade) in the accepts pile.

Qualified person

The technical contents of this release were reviewed and approved by Jean-Philippe Paiement, PGeo, MSc, a consultant to Laurion, and a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

About Laurion Mineral Exploration Inc.

The corporation is a junior mineral exploration and development company listed on the TSX Venture Exchange under the symbol LME and on the OTC Pink under the symbol LMEFF. Laurion now has 256,909,855 outstanding shares of which approximately 80 per cent are owned and controlled by insiders who are eligible investors under the friends and family categories.

Laurion's emphasis is on the development of its flagship project, the 100-per-cent-owned, mid-stage, 47 square km Ishkoday project, and its gold-silver and gold-rich polymetallic mineralization.

We seek Safe Harbor.