Latest Drilling Results from Sekisovskoye Underground Project, Kazakhstan

12 July 2011

Hambledon Mining plc (“Hambledon” or “Company”)

Latest drilling results from Sekisovskoye Underground Project, Kazakhstan

Hambledon Mining plc (AIM: HMB), the Kazakhstan gold mining and development company, continues to advance its underground drill programme to validate and expand the geological resources at Sekisovskoye, and today reports the assay results of a further 12 drill holes.

Key assay results from the programme carried out during May and June 2011 are as follows:

 29 drill holes completed to date, all have intersected gold mineralisation  150% increase in the average thickness of gold mineralisation  Over 4,800 metres drilled of planned 25,000 metre programme  Significant intersections include:  Hole D132 – 10m at 9.8 g/t Au, 11m at 2.61 g/t Au,  Hole D128 – 29m at 2.6 g/t Au, 11m at 4.5 g/t Au, 8.7m at 2.6 g/t Au  Hole D128.1 – 22m at 2.82 g/t Au, 34m at 2.71 g/t Au, 24m at 2.87 g/t Au, 5.4m at 9.6 g/t Au,  Hole D129 – 5.6m at 5.26 g/t Au, 12m at 2.2 g/t Au  Hole D126.1 – 10.3m at 5 g/t Au

To date, 29 drill holes have been completed and the results have confirmed the geometry of the resource and validity of the current resource model. The analytical work was carried out in the Altai Ken-Bayitu laboratory with independent assay verification undertaken by the Alex Stewart Group in Karabalta, Kyrgyzstan.

The Sekisovskoye deposit comprises approximately ten large mineralised zones intermingled with an additional 190 narrow and sinuous mineralised zones. The zones of mineralisation show wide variation in thickness from 0.35 metres to 30 metres with a new revised average of 5.5 metres and localised pinch and swell structure, with variable gold and silver content. This increase in average width of mineralisation is significant as it is greater than assay results received from drilling undertaken in the 1990s and historically by the Soviet exploration programmes. These width extensions hence lead to an increased volume of economic mineral resources, and enhance mine-ability and extraction.

The recent drilling has been aligned to the mine planning work for stope definition. This information is to be used by Golders Associates in their current geological modelling of Sekisovskoye at 1.0 g/t Au cut of grade boundary. This modelling forms the basis for the detailed mine engineering that is also being undertaken by Golders. The Board expect to be able to update shareholders of the result of both studies together with its mineable underground reserve statement in Q4 2011. Tim Daffern, CEO, commented “Following on from the early encouraging results of the first 17 drill holes, we are pleased to report additional assay results from a further 12 holes of our underground drill programme. It is particularly pleasing to see an increase in the average thickness of gold mineralisation which, if continued along the orebody, would increase the volume of economic mineral resources. The latest set of results are in line with, and in some cases better than, our expectations.

Appendix 1 Sekisovskoye 2011 - Drill result summary hole 18 to hole 29. COORDINATES DEPTH GOLD MINERALIZATION_ore intervals

№ HOLE AA-AKB X Y Z AZI DIP drilled core total FROM TO LENGTH LAB, AU, g/t 18 D76 7512.076 6936.655 324.24 226 -31 170.1 170.1 170.1 6.00 7.00 1.00 2.87 64.00 65.00 1.00 1.51 75.00 76.00 1.00 1.78 93.00 94.00 1.00 2 115 117 2 8.75 19 D132 7568.109 6653.11 325.013 39 -52 219 219 219 2 3 1 1.88 9 10 1 2.82 14 17 3 1.2 38 39 1 1.33 43 47 4 1.01 52 55 3 1.17 58 60 2 1.45 64 67 3 1.5 72 77 5 1.96 81 91 10 9.8 101 102 1 1.94 110 121 11 2.61 167 168 1 1.18 180 181 1 5 198 200 2 4.08 207 208 1 1.2 20 D131 7568.645 6653.06 325.384 42.5 -43 216 216 216 12 13 1 2.83 17 18 1 1.79 23 24 1 1.02 35 37 2 2.01 44 47 3 1.61 50 51 1 1.2 62 63 1 2.1 69 70 1 9.64 111.5 112.5 1 1 137.5 141.5 4 1.89 164.5 165.5 1 1.08 167.5 168.5 1 2.22 201.5 202.5 1 1.77 21 D66.1 7453.572 6934.403 323.943 44 -63 136.8 136.8 136.8 5 6 1 1 10 11 1 1.6 37 50 13 1.1 56 57 1 1.1 66 70 4 3.03 76 77 1 9.61 93 94 1 1.27 22 D128 7610.455 6693.385 323.633 225 -79.5 161.7 161.7 161.7 0 14 14 1.43 20 21 1 1.26 26 29 3 1 37 38 1 2.17 44 45 1 2.07 49 50 1 1.63 56 57 1 1.58 93 94 1 7.77 97 98 1 1.14 102 131 29 2.6 135 136 1 1.12 139 150 11 4.5 153 161.7 8.7 2.57 23 D84 7559.281 6928.389 323.373 225 -45 184 184 184 95 96 1 1.74 111 112 1 1.41 179 183 4 1.18 24 D128.1 7610.375 6693.141 323.576 223.5 -67 160.4 160.4 160.4 0 22 22 2.82 30 33 3 1.17 37 38 1 2.04 42 44 2 8.4 52 55 3 2.27 79 80 1 1.36 86 87 1 1.06 90 124 34 2.71 128 152 24 2.87 155 160.4 5.4 9.59 25 D129 7610.41 6693.216 323.676 224 -54 151 151 151 2 25 23 1.98 35 37 2 6.65 74 75 1 1.36 79 80 1 6.71 84 85 1 2.94 90 93 3 2.55 102 107 5 5.26 113.4 119 5.6 2.65 122 129 7 2.55 132 144.7 12.7 2.15 26 D130 7608.602 6692.994 324.415 226 -32 125.8 125.8 125.8 1 8 7 1.58 11 20 9 1.79 46 47 1 1.66 53 54 1 1.08 62 65 3 1.21 82 83 1 2.26 88 91 3 5.27 27 D85 7559.279 6928.365 323.639 225 -29 199 199 199 100 101 1 1 111 112 1 1.38 129 130 1 1.64 148 149 1 1.1 150 151 1 1.1 179 180 1 3.83 28 D127 7572.081 6710.801 324.15 228.5 -29 124.4 124.4 124.4 0 1 1 3.66 48 49 1 3.29 58 59 1 2.3 67 68 1 1.26 75 77 2 2.61 80 82.5 2.5 2.1 86 87 1 1.04 91 92 1 1.87 115 116 1 2.55 29 D126.1 7576.253 6715.763 323.914 41 -43 164.9 164.9 164.9 0 3 3 1.62 8 9 1 1.06 10 11 1 1.17 25 28 3 1.91 34 40 6 1 47 48 1 2.39 59 60 1 1.22 62 72.3 10.3 5

Qualified Person Information in this report relating to the exploration results is based on data reviewed by Timothy Daffern, BEng, MBA, FIMMM, MIMMM, MCIM, Chartered Mining Engineer, Chief Executive Officer of Hambledon Mining plc. Timothy Daffern has in excess of 22 years’ experience in mineral project development and evaluation including exploration and is a Qualified Person under the AIM Rules.

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