Opes Prime Update

Thor Mining PLC
14 April 2008


                                THOR MINING PLC

                               OPES PRIME UPDATE

Dated: 14 April 2008

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, today announces an update regarding its
enquiries into shareholdings and the beneficial ownership of such shares as a
result of transactions entered into between Opes Prime and its customers.

Following the information received from Mr Salvatore Algeri, Receiver and
Manager on behalf of Opes Prime on 3 April 2008, the Company requested the
Receiver to confirm the percentage of Opes Prime's voting rights, held through
direct or indirect holdings of financial instruments falling within the
Disclosure Rules and Transparency Rules of the Financial Services Authority, in
the Company's ordinary shares and warrants.

On 11 April 2008 the Company received a letter from lawyers acting for the
Receiver stating that Opes Prime did not hold any securities in Thor.

The Company has now sent a similar request to the Australia and New Zealand
Banking Group.


Enquiries:

John Young       + 61 (0)419 954 020   Thor Mining PLC           Chief Executive
                                                                         Officer

John Simpson     020 7512 0191         Blomfield 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
            The company news service from the London Stock Exchange