Rocmec Mining Corporation Inc.
TSX VENTURE : RMI
FRANKFURT : D5O

May 20, 2010 16:22 ET

Rocmec Increases Measured and Indicated Resources at Its Rocmec 1 Gold Property

VAUDREUIL-DORION, QUEBEC--(Marketwire - May 20, 2010) - Rocmec Mining inc. (the « company ») (TSX VENTURE:RMI) (FRANKFURT:D5O) is pleased to announce results of revised NI43-101 resource calculation report prepared by SGS Geostat regarding its Rocmec 1 gold property located in Rouyn-Noranda, Quebec. This report will be available on SEDAR ( www.sedar.com ) in the coming days.

The drilling results from 2010 have delineated measured and indicated resources of the Boucher and Boucher 2 structures totalling 22,700 ounces respectively the Boucher Structure of 58 700 tonnes at 5.46 g/tAu totalling 10,300 ounces and the Boucher 2 structure of 31,500 tonnes at 12.20g/t Au totalling 12,400 ounces with a cut-off grade of 3 g/t This is the first time that Rocmec obtains this type of resource category for the structure that was discovered in 2006. The Boucher vein has now been indentified over a distance of 450 meters in length, at depths of 450 meters and remains open in all directions.

In summary, by viewing the classification table of global resources below, prepared with a cut-off grade of 3 g/t, an industry standard. The resources measured/indicated now total 570,300 tons at 6.52 g/t or 119,500 ounces vs. 477,400 tons to 5.59 g/t or 85,900 ounces as announced in the press release dated March 3rd 2010.

Vein/Structure Classification Tonnage Au Oz Average Volume Surface
      (g/t) (31.103 g) Thickness (m) (m3) (m2)
McDowell measured*(M) 73 100 7.33 17 200 0.83 27 100 32 600
  indicated(I) 159 900 5.99 30 800 0.66 59 200 90 000
  Total (M+I) 233 000 6.41 48 000 0.70 86 300 122 600
  Inferred 394 200 4.50 57 000 0.74 146 000 197 400
* Historical Mining and 2008/2009 Bulk sampling removed from these numbers.    
Shaft Measured (M) 20 700 6.68 4 400 0.52 7 700 14 700
  indicated(I) 116 200 5.79 21 600 0.56 43 000 77 100
  Total (M+I) 136 900 5.92 26 100 0.55 50 700 91 800
  Inferred 253 500 8.24 67 200 0.59 93 900 159 600
Talus Measured (M) 31 100 6.24 6 200 0.88 11 500 13 100
  indicated(I) 79 100 6.50 16 500 0.70 29 300 41 900
  Total (M+I) 110 200 6.43 22 800 0.74 40 800 55 000
  Inferred 215 700 7.57 52 500 0.62 79 900 129 800
Boucher Indicated 58 700 5.46 10 300 0.86 21 700 25 400
  Inferred 348 100 9.94 111 200 0.91 128 900 141 600
Boucher 2 Indicated 31 500 12.20 12 400 0.57 11 700 20 600
  Inferred 272 900 7.20 63 100 0.92 101 100 110 300
Talus 2 Inferred 18 000 5.28 3 100 1.25 6 700 5 300
Front West Inferred 8 500 18.41 5 000 0.65 3 100 4 300
T1 Inferred 600 10.58 200 0.39 200 600
T2 Inferred 500 18.42 300 0.33 200 600
T3 Inferred 500 4.36 100 0.35 200 600
               
Vein/Structure Classification Tonnage Au Oz Average Volume Surface
      (g/t) (31.103 g) Thickness (m) (m3) (m2)
Total Measured 124 800 6.95 27 900 0.77 46 200 60 300
Indicated 445 400 6.40 91 600 0.65 165 000 255 000
Total 570 300 6.52 119 500 0.67 211 200 315 300
Inferred 1 512 400 7.40 359 600 0.75 560 100 749 900

Bloc extraction parameters

The T1, T2 and T3 blocks were estimated as individual blocks of definite volume. SGS used mineralized intervals of a minimum of 0.3m horizontal width for all of the structures. The 0.3m minimum width was selected according to the mining method used by Rocmec which is thermal fragmentation, extracting narrow structures and veins with a minimum of 0.3m (true width).

The grade of the composites were extrapolated to a radius of about 25m by 25m, taking into account its horizontal thickness. Estimating block was in contact only overburden or contacts as well as topographical boundaries of mining.

Polygonal parameters

The Front West and Talus 2 structures were estimated using a polygonal estimation method. SGS used mineralized intervals of a minimum of 0.3m horizontal width for all of the structures. The 0.3m minimum width was selected according to the mining method used by Rocmec which is thermal fragmentation, extracting narrow structures and veins with a minimum of 0.3m (true width).

The composites graces were extrapolated on a 35m radius.

The estimation was restricted to the overburden or topographic contact as well as the laim boundaries.

Bloc Model parameters

Block modeling was done on the Boucher, Boucher 2, McDowell, Shaft veins/structures. SGS used mineralized intervals of a minimum of 0.3m horizontal width for all of the structures.The 0.3m minimum horizontal width was selected according to the mining method used by Rocmec which is thermal fragmentation, extracting narrow structures and veins with a minimum of 0.3m (true width). The block model is estimated within Rocmec's claims and restricted to the overburden or topographic contact. The claims are considered in good standing. However SGS did not do an extensive status verification of Rocmec's claims. Coordinates used are in local mining grid. A maximum elevation level of 9990m was used since no topographic surface is available for the moment. A different set of 2D composites was used for the estimation of the Boucher and Boucher 2 structures from the rest of the Rocmec 1 structures. A specific gravity of 2.7 was used. Normal inversed distance was used for the estimation. The estimated resources were classified in accordance with the specifications of the 43-101 Policy, namely in measured, indicated, and inferred resources. Classification was done according to the density of drilling and level of confidence of the data.

Classification

The estimated resources were classified in accordance with the specifications of the 43-101 Policy, namely in measured, indicated, and inferred resources. Classification was done according to the density of drilling and level of confidence of the data.

Measured Category

An outline was drawn and used in the block modeling software in the vicinity of existing underground openings.

Indicated Category

An outline was drawn and used in the block modeling software in the neighbouring of existing openings and closed spacing intersects, according to the amount of available intersects.

Inferred Category

An outline was drawn and used in the block modeling software within the perimeter of the modeled zone and recognized by at least a pierce point.

Maxime Dupéré, geo., from SGS Canada Inc., a qualified person under the guidelines of National Instrument 43-101 is the qualified person responsible for the technical information in this press release.

Thermal fragmentation…mining ounces not TONNES!

The Thermal Fragmentation Mining Method video can be viewed on Rocmec's website or by clicking the following link:
http://www.rocmecmines.com/video_an.asp

About Rocmec Mining Inc.

Rocmec Mining Inc. is a Canadian junior exploration company actively involved in the acquisition, exploration and development of precious metal projects. The Company's exclusive thermal fragmentation process combined with its growth strategy place it as the partner of choice for the development of high-grade narrow vein precious metal properties. The Company's shares are listed on the TSX-Venture (RMI) and the FSE (D5O) exchange.

This press release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, that address future exploration drilling, exploration activities and events or developments that the Corporation expects, are forward looking statements. Although the Corporation believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include market prices, exploitation and exploration successes, continued availability of capital and financing, and general economic, market or business conditions.

Please visit us on the web at www.rocmecmines.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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