Norsemont Mining Inc.CSE: NOM

Norsemont Mining Announces Constancia Project Drill Results

· Issued by Norsemont Mining Inc. via CNW

Highlights include: 146 meters at 0.77%Cu, 0.026 % Mo (1.01% CuEq);

96 meters at 0.92%Cu (1.04% CuEq); 79.9 meters at 0.95% Cu (1.02% CuEq);

78.9 meters at 0.65% Cu (0.76% CuEq)

Shares Issued and Outstanding: 48,489,147

TSX: NOM

BVL: NOM

TORONTO and LIMA, Peru, March 25 /CNW/ - Norsemont Mining Inc. ("the Company") (TSX: NOM, BVL: NOM) today announced additional results (Table 1 below) from the ongoing Phase III drill program at the Constancia copper-molybdenum-silver porphyry project in southern Peru.

Norsemont currently has six drill rigs at the Constancia site and has completed more than 14,800 meters of drilling since the last release of drill results on December 10, 2007. Since the last resource estimate by Snowden and Associates disclosed on March 29, 2007, the majority of the drilling has been infill drilling. More recently, Norsemont has undertaken extensive definition drilling to establish the limits and peripheries of the main zones of mineralisation. Some of this drilling has been in areas of either lower grade or narrower intercepts, which has to be completed for the pit optimisation work in ongoing engineering studies. Consequently, only the highlights have been tabled in this release with the full results (together with location map) available on the Company's website (www.norsemont.com).

Commenting on the results, Norsemont's President and Chief Operating Officer Bob Baxter said: "Our Constancia drilling program continues to return excellent results in the mineralised zones. The definition drilling is also providing information essential for our continuing engineering studies. As the infill and definition drilling at the Constancia and San Jose zones is completed, Norsemont will commence drilling at newly discovered anomalies in the immediate vicinity."

The drilling program and geological studies at the Constancia project are reviewed and the results are approved by Leonardo Diaz (MAusIMM), Norsemont's Qualified Person under NI 43-101. Core samples are cut with a diamond saw, with one-half of the core placed in sealed bags and shipped to ALS Chemex Assay Labs in Lima, Peru. The program includes an extensive quality control program for assaying, which includes the systematic use of standards, blanks, and field duplicate samples. Secondary laboratories are also used for check-assaying. All intersections were determined using a rolling 0.2% copper cut-off and up to 5 meters of internal waste. Due to the disseminated characteristics of the deposit and homogeneity of the mineralisation, all intersections are to be considered true width.

Full disclosure of all 43-101 compliant drill results conducted on the project to date that have or will be used in resource estimations are available on the Company's website (www.norsemont.com) under "Constancia Project" together with a drill-hole location map.

Table 1: Significant Copper Intersections at the Constancia Project
-------------------------------------------------------------------------
HOLE_ID   Az    Dip    Length  From    To    COG  CuT    Mo    Ag   CuEQ
                                                  (%)    (%)  (ppm) (%)
-------------------------------------------------------------------------
CO-07-166 80       -83  78.90  59.10 138.00  0.2  0.65  0.011  4.84 0.76
             including  48.90  59.10 108.00  0.3  0.84  0.012  5.97 0.97
                  also  30.90  59.10  90.00  0.4  1.07  0.014  4.57 1.20
                   and  26.90  59.10  86.00  0.5  1.19  0.015  4.94 1.34
             Including  10.00 126.00 136.00  0.3  0.55  0.023  4.82 0.74
                        22.00 160.00 182.00  0.3  0.62  0.003  2.52 0.67
             including  18.00 164.00 182.00  0.4  0.61  0.002  2.14 0.64
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-170 98       -79 195.30  88.00 283.30  0.2  0.41  0.015  4.04 0.54
             including  71.90  92.10 164.00  0.3  0.55  0.016  3.98 0.69
                  also  59.90  92.10 152.00  0.4  0.47  0.014  3.18 0.59
                   and  13.90  92.10 106.00  0.5  1.04  0.024  4.12 1.23
                  also  14.00 190.00 204.00  0.3  0.28  0.010  3.44 0.38
                   and  56.00 210.00 266.00  0.3  0.38  0.020  4.91 0.56
             including  24.00 234.00 258.00  0.4  0.42  0.023  5.67 0.62
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-173  2       -73  79.90   0.00  79.90  0.2  0.95  0.008  2.14 1.02
             including  28.00   0.00  28.00  0.3  0.42  0.008  3.32 0.51
                  also  43.90  36.00  79.90  0.3  1.42  0.010  1.58 1.50
             including  41.90  38.00  79.90  0.4  1.39  0.010  1.51 1.46
                  also  27.90  52.00  79.90  0.5  1.97  0.015  2.17 2.09
                   and  19.60  58.00  77.60    1  2.65  0.017  2.61 2.79
                        22.85 117.15 140.00  0.2  1.02  0.006  1.83 1.08
             including  18.35 117.15 135.50  0.5  1.24  0.007  1.95 1.30
                  also  12.85 117.15 130.00    1  1.57  0.007  2.07 1.64
                        16.00 218.00 234.00  0.2  0.27  0.005  4.96 0.35
                        16.00 240.00 256.00  0.2  0.32  0.002  1.92 0.36
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-176 26       -74 146.00 140.00 286.00  0.2  0.77  0.026  6.56 1.01
             including 143.55 140.00 283.55  0.3  0.75  0.023  6.11 0.96
                  also  47.65 141.10 188.75  0.4  1.01  0.002  7.39 1.08
                   and  20.20 168.55 188.75    1  1.15  0.001  7.34 1.22
                  also  12.00 196.00 208.00  0.4  0.47  0.029  3.85 0.70
                   and  45.55 238.00 283.55  0.4  0.93  0.038  8.14 1.26
             including  21.35 262.20 283.55  0.5  1.57  0.033 14.24 1.92
                  also  19.85 263.70 283.55    1  1.55  0.031 13.60 1.88
                        18.00 368.00 386.00  0.2  0.20  0.007  1.14 0.26
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-177 25       -69  32.00  14.00  46.00  0.2  0.43  0.006  5.40 0.52
             including  21.20  20.80  42.00  0.3  0.56  0.007  5.21 0.65
                  also  18.95  20.80  39.75  0.5  0.54  0.005  4.79 0.62
                        68.50  79.50 148.00  0.2  0.60  0.017  3.39 0.75
             including  64.50  79.50 144.00  0.3  0.62  0.017  3.46 0.76
                  also  44.50  79.50 124.00  0.4  0.69  0.014  3.82 0.82
                        32.00 154.00 186.00  0.2  0.23  0.016  2.83 0.36
                        15.05 223.95 239.00  0.3  0.84  0.021  8.29 1.05
                        78.00 250.00 328.00  0.2  0.30  0.003  1.25 0.33
             including  30.00 280.00 310.00  0.3  0.45  0.003  1.83 0.49
                  also  18.00 286.00 304.00  0.4  0.42  0.002  1.76 0.45
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-178 54       -65 112.40  21.60 134.00  0.2  0.45  0.011  7.63 0.60
             including  51.30  36.00  87.30  0.3  0.52  0.013  8.21 0.68
                  also  38.00  36.00  74.00  0.4  0.53  0.011  7.39 0.67
                   and  28.00  44.00  72.00  0.5  0.56  0.010  7.31 0.69
                   and  36.00  98.00 134.00  0.3  0.39  0.008  6.82 0.50
             Including  31.35  98.00 129.35  0.4  0.42  0.009  7.66 0.55
                        57.10 160.90 218.00  0.2  0.45  0.009  3.73 0.55
             Including  23.10 160.90 184.00  0.3  0.56  0.005  6.09 0.65
                  also  19.10 160.90 180.00  0.4  0.55  0.005  5.83 0.63
                   and  19.10 160.90 180.00  0.5  0.50  0.004  5.28 0.58
                  also  26.00 190.00 216.00  0.3  0.38  0.013  1.88 0.48
                       196.00 232.00 428.00  0.2  0.52  0.025  2.83 0.71
             including 182.00 238.00 420.00  0.3  0.52  0.024  2.76 0.71
                  also  60.00 246.00 306.00  0.4  0.83  0.041  3.91 1.14
                   and  44.00 248.00 292.00  0.5  0.92  0.046  4.33 1.26
                   and  14.00 264.00 278.00    1  1.88  0.094  9.25 2.59
                   and  40.00 316.00 356.00  0.4  0.32  0.011  1.46 0.41
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-07-182 74       -74  14.80   0.00  14.80  0.2  0.58  0.006  4.78 0.67
                        28.00  26.00  54.00  0.2  0.20  0.007  2.53 0.27
                        18.00 188.00 206.00  0.2  0.23  0.005  2.27 0.28
                       138.45 268.00 406.45  0.2  0.44  0.009  2.83 0.52
             including  18.00 270.00 288.00  0.3  0.24  0.006  1.33 0.29
                   and  98.45 308.00 406.45  0.3  0.51  0.009  3.37 0.60
             including  82.45 324.00 406.45  0.4  0.50  0.008  3.38 0.58
                  also  50.45 356.00 406.45  0.5  0.57  0.009  4.07 0.66
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-08-185 95       -72  26.00 106.00 132.00  0.2  0.34  0.014  5.40 0.48
             including  12.00 118.00 130.00  0.3  0.44  0.019  3.96 0.60
                       176.15 138.00 314.15  0.2  0.43  0.008  5.90 0.53
             including  16.00 158.00 174.00  0.3  0.24  0.008  3.27 0.32
                   and 132.15 182.00 314.15  0.3  0.47  0.007  6.43 0.58
             including  48.00 202.00 250.00  0.4  0.46  0.007  9.08 0.59
                  also  31.70 218.30 250.00  0.5  0.52  0.007 11.93 0.68
                   and  54.15 260.00 314.15  0.4  0.57  0.007  6.35 0.67
             including  24.00 260.00 284.00  0.5  0.60  0.008  7.69 0.72
                  also  14.15 300.00 314.15  0.5  0.51  0.003  3.82 0.57
                        60.60 387.40 448.00  0.2  0.29  0.001  2.90 0.33
             including  26.00 414.00 440.00  0.3  0.30  0.001  3.07 0.33
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-08-186 325      -70  55.15  12.30  67.45  0.2  1.22  0.002  8.49 1.31
             including  33.70  12.30  46.00  0.5  1.10  0.002  7.52 1.19
                  also  16.05  51.40  67.45  0.5  1.77  0.001 11.80 1.88
                        14.30 171.65 185.95  0.2  0.22  0.001  8.66 0.30
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-08-188 325      -70  96.25  23.75 120.00  0.2  0.59  0.011  3.32 0.69
             including  21.45  23.75  45.20  0.5  0.82  0.010  1.57 0.90
                   and  67.85  52.15 120.00  0.4  0.50  0.008  3.56 0.59
             including  36.30  52.15  88.45  0.5  0.53  0.010  3.57 0.63
                   and  20.00  96.00 116.00  0.5  0.45  0.005  2.98 0.51
                        17.70 286.00 303.70  0.3  0.75  0.005  6.53 0.85
             including  16.10 287.60 303.70  0.5  0.80  0.006  7.00  0.90
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-08-189 324      -71  96.00  12.00 108.00  0.2  0.92  0.011  4.79 1.04
             including  94.00  14.00 108.00  0.3  0.91  0.011  4.73 1.03
                  also  62.00  46.00 108.00  0.4  1.23  0.013  5.78 1.37
                   and  41.65  64.35 106.00    1  1.45  0.016  6.47 1.61
-------------------------------------------------------------------------

-------------------------------------------------------------------------
CO-08-192 136      -72  39.65  38.35  78.00  0.2  0.28  0.013  1.59 0.38
                       148.00 100.00 248.00  0.2  0.45  0.007  3.45 0.53
             including  26.00 102.00 128.00  0.3  0.35  0.010  1.05 0.42
                  also  16.00 112.00 128.00  0.4  0.28  0.008  0.93 0.34
                   and  90.00 134.00 224.00  0.3  0.49  0.006  4.46 0.57
             including  32.00 134.00 166.00  0.4  0.64  0.009  4.10 0.73
                  also  32.00 192.00 224.00  0.4  0.41  0.006  4.79 0.49
                   and  14.00 232.00 246.00  0.3  0.53  0.004  2.57 0.59
             including  12.00 234.00 246.00  0.4  0.56  0.005  2.60 0.62
-------------------------------------------------------------------------

-------------------------------------------------------------------------

Note 1: Copper equivalent values (CuEQ) are estimated using long-term metal prices including: copper US$1.80 per lb, molybdenum US$12.00 per lb, and silver US$11 per oz. Adjustment factors to account for differences in relative metallurgical recoveries for copper, molybdenum and silver will depend upon the completion of definitive metallurgical testing. CuEQ equals Cu percent plus Mo percent times (8.00/1.20) plus Ag grams per tonne times 0.24/(1.20(x)22.05).

Norsemont Mining is a Canadian mineral exploration and development company focused on the Constancia Cu-Mo-Ag deposit in southern Peru. Norsemont currently controls an undivided 81% interest in the Constancia Project, which interest is set to increase to 100% by March 31, 2008 through a final option payment of US$8M to Rio Tinto.

The Constancia Project currently has a 43-101 compliant indicated resource of 70M tonnes at 0.53% Cu (0.8 Billion lbs Cu) and an inferred resource of 250.2M tonnes at 0.51% Cu (2.8 Billion lbs Cu). A recently completed scoping study anticipates a project producing in excess of 90,000 tonnes of copper annually. The study indicates the project has a net present value of $530 million and an internal rate of return of 25.3 percent. The following long-term commodity price assumptions were used in the study: copper $1.80 per pound, molybdenum $12 per pound and silver $11 per ounce. The full study, dated December 11, 2008, and titled "Preliminary Assessment of the Constancia Project, Department of Cusco, Peru" is available for viewing on SEDAR.

The technical information provided in this press release was reviewed and approved by Robert. W. Baxter (MAusIMM), the President and a director of the Company and a qualified person for the purposes of National Instrument 43-101.