Resource Statement

Hambledon Mining PLC 29 June 2005 HAMBLEDON MINING PLC JORC resource up 45% Project update Hambledon Mining Plc ('Hambledon' or the 'Group' or the 'Company), an AIM-listed mining and exploration company developing precious metal deposits in Kazakhstan, announces a significant increase in its gold resource, and further developments with its Sekisovskoye and Tserkovka deposits. Highlights: • Overall resource increased to approximately 3.5 million ounces, previously 2.8 million ounces • 45% increase in JORC resource to 1.4 million ounces • Significant progress toward realisation of open pit project • Underground resource yet to be updated The successful 2004 mineralogical continuity drilling results have led to improvements in our understanding of the resource and a resultant increase in its size. An updated modelling approach that better reflects the geostatistical grade trends has been applied to the open pit resource and is currently being applied to the deeper levels. The total contained gold at Sekisovskoye for the combined open pit and underground resource, presented on a western (JORC) basis, is 1.3 million ounces, a 45% increase from the 2004 resource figures, plus 2.2 million ounces of silver. In addition, an estimation of the Soviet prognosticated (P1) category resource in extensions along strike and at depth has increased from 1.1 million ounces to 1.4 million, an increase of 27%. Significant additional potential on the newly acquired Tserkovka licence territory amounts to some 740,000 ounces, mostly in the Soviet prognosticated (P1) category. The reporting of the resources in the central zone at Sekisovskoye, including both the upper and lower levels as described below, is based on the guidelines endorsed by the well-established Australian Code for Reporting of Mineral Resources and Ore Reserves (JORC) Hambledon continues to report former Soviet prognosticated (P1) resources where insufficient information is available to enable an update to be made under JORC guidelines, or where it is necessary in order to show the likely future potential, in accordance with the practice of similar western companies operating in the former Soviet Union. Soviet category resources below the level of P1 (for example, P2 or P3) have not been reported because the confidence level associated with such categories is too low to be meaningful. Combined resource table: JORC JORC C2 P1 Total Indicated Inferred Oz Oz Oz Oz Oz Sekisovskoye - open pit & underground 1,110,304 248,528 - 1,400,000 2,758,832 Tserkovka - - 145,000 241,000 386,000 Other exploration areas - - - 354,000 354,000 Total 1,110,304 248,528 145,000 1,995,000 3,498,832 Figures include silver at gold equivalent (one ounce of silver = 0.0166 ounces of gold) Further details are set out in the Annual Report which has been sent to shareholders and will be made available from the Company's web-site at www.hambledon-mining.com Tserkovka contract signed The winning of the tender for the Tserkovka licence territory was announced in November 2004. The related Subsoil Use Contract was signed on 24 June 2005 by the government of Kazakhstan. 2005 drilling Some 800 metres of core-drilling has been carried out at Sekisovskoye, mostly targeting open pit ore zone extensions. Although no assay results have yet been received, core logging has confirmed a near-surface extension of the Orebody 10 breccia zone. This is likely to translate into a somewhat larger open pit than originally planned for start-up next year. Planning for underground drilling is also currently underway. Now that the Tserkovka Subsoil Use contract has been signed, drilling is expected to begin in the next few days. Open pit project Design and optimisation of the mine plan for the Sekisovskoye open pit is continuing. The preliminary optimised open pit shell, announced in March, indicated that approximately 183,000 ounces would be mined over a six year life. Whilst this was, itself, an 83% increase on the figure indicated at the time of our flotation in June 2004, the eventual size may be larger still once this season's drilling is concluded and the new modelling incorporated. Optimisation test-work for the design of the process plant is now nearing completion and a local firm to carry out the engineering, design and construction will be selected next month. Detailed design of the tailings storage facility has been started by a local company. Options for the supply of power to the site have been reviewed and negotiations with the preferred supplier are now taking place. Preparation of submissions to the Kazakhstan State Committee on Ore Reserves is underway. Underground resource For underground exploitation, the change in approach to the modelling of the mineralised higher grade zones is nearing completion and results are expected within the next few weeks. Appointments Mr Neil Stevenson, 43, recently Mining Manager and acting General Manager of Golden Star Resources' Bogoso, Prestea and New Century Mines, has accepted the position of Operations Manager and will join the team in August. Neil is a mining engineer with a post graduate diploma in business administration from the University of Queensland. He has a wealth of experience of both underground and open pit operations which will first be put to use in the continued evaluation of open pit options. A local underground mine design engineer has also accepted a position with the group, beginning in July. Mr Ian Petts, 28, has been appointed Group Financial Controller, to work in our Almaty and Ust Kamenogorsk offices. Ian has an MSc (with distinction) in Economics and has worked in Pakistan, Zimbabwe and Bulgaria. More recently, he trained with Deloitte as a Chartered Accountant and has worked with Price Waterhouse Coopers since qualifying. Nicholas Bridgen Chief Executive, of Hambledon Mining Plc commented: 'The 2004 drilling results and the new modelling approach have resulted in a greater appreciation of the open pit potential of the upper levels of the deposit. For this reason, the upper levels have been modelled with a 0.5 gramme per tonne cut-off grade down to a depth of 240 metres (to the '250 metre level'). Grade and tonnage estimations for gold and silver show significant gains in contained metal This new resource statement is the formal quantification of what we've known qualitatively since the 2004 drilling results were obtained - the more we look at this deposit, the more gold we realise it contains, and we are confident that there's still a lot more to come.' ENQUIRIES: 29th June 2005 Hambledon Mining Plc Tel: +44 87 111 8778 Nicholas Bridgen, Chief Executive or +7 300 733 8915 Bankside Consultants Tel: 0207 367 8888 Michael Spriggs/Michael Padley About Hambledon Hambledon Mining plc is an AIM listed mining and exploration company which has announced the development of an open pit project at its Sekisovskoye deposit in East Kazakhstan, prior to the development of the larger underground resources. Initial production from the open pit will be around 30,000 ounces per year, rising to around 100,000 ounces when wholly underground ore is processed. The Group also holds the rights to and is exploring the adjacent Tserkovka licence area, which contains the areas known as Tserkovka, Feodulikha, Area 4 and Area 5. It is likely that any ore from these areas will be treated in an expanded plant at Sekisovskoye. This information is provided by RNS The company news service from the London Stock Exchange

Companies

AltynGold (ALTN)
UK 100

Latest directors dealings