Exploration Update

Thor Mining PLC
02 July 2007

                              THOR MINING PLC

                   MOLYHIL AND HALE RIVER EXPLORATION UPDATE


Dated: 2 July 2007



Thor Mining PLC ('the Company' or 'Thor'), AIM, ASX: 'THR' the specialist metals
company focused on advancing tungsten-molybdenum and uranium projects in the
Northern Territory of Australia, announces that due to the high-grade nature of
the results received from the recent drilling program at its Molyhil
Tungsten-Molybdenum Project ('Molyhil'), duplicate sampling is now required by
the independent consultant who is currently finalising the revised JORC
resource. This will delay the completion of the upgraded resource estimate.



The revised resource model incorporating final results from the recent drilling
is now expected to be finalised by mid-to-late July, allowing for delays in
laboratory processing of the duplicate samples due to the current bottlenecks
being experienced in assay laboratories in Australia.



The requirement for duplicate assays arose from the high-grade results and the
need to check pulp samples in order to confirm the repeatability of results. The
additional checking process is required to produce a JORC compliant resource
and, ultimately, a mining reserve.



Thor also announces that it has commissioned Peter O'Brien and Associates,
specialists in geotechnical and mining engineering, to complete a conceptual
underground study for Molyhil based on the updated resource and reserve
estimate. The focus of this study will be to consider extensions to mine life
beyond the current proposed open pit operation.



Uranium Exploration



The Company is also pleased to advise that reconnaissance air core drilling at
its Hale River Uranium Project ('Hale River') in the Northern Territory is now
complete, with a total of 28 holes completed for 1,829 metres of drilling.



Although both air core and mud rotary drilling techniques were used, drilling
coverage of a number of the proposed Hoist EM targets was incomplete due to
difficulties with sample recovery at depth. All samples have now been dispatched
to Adelaide for analysis, with initial results expected in July.



JORC Compliance



The information in this report that relates to exploration results, mineral
resources or ore reserves is based on information compiled by John Young, who is
a Member of The Australasian Institute of Mining and Metallurgy. John Young is a
director of Thor Mining PLC.  John Young has sufficient experience which is
relevant to the style of mineralisation and type of deposit under consideration
and to the activity which he is undertaking to qualify as a Competent Person as
defined in the 2004 Edition of the 'Australasian Code for Reporting of
Exploration Results, Mineral Resources and Ore Reserves'.  John Young consents
to the inclusion in the report of the matters based on his information in the
form and context in which it appears.



Enquiries:


John Young          + 61 (0)419 954 020  Thor Mining PLC               Chief Executive Officer
John Simpson        020 7512 0191        ARM Corporate Finance Ltd     Nominated Adviser
Leesa Peters        020 7429 6600        Conduit PR Limited            Public Relations
        or
Jos Simson          020 7429 6603
Nicholas Read       + 61 (0) 8 9388 1474 Read Corporate                Public Relations/Australia




Updates on the Company's activities are regularly posted on Thor's website
www.thormining.com, which includes a facility to register to receive these
updates by email.


                      This information is provided by RNS
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