Rambler Metals & Mining Plc: Holdings in Company

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TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES(i)
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1. Identity of the issuer or the              Rambler Metals and Mining Plc
underlying issuer of existing shares
to which voting rights are attached:(ii)
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2 Reason for the notification (please tick the appropriate box or boxes):
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An acquisition or disposal of voting rights                               x
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An acquisition or disposal of qualifying financial instruments
which may result in the acquisition of shares already issued to
which voting rights are attached 
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An acquisition or disposal of instruments with similar economic
effect to qualifying financial instruments
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An event changing the breakdown of voting rights
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Other (please specify):
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3. Full name of person(s) subject to the         
notification obligation:(iii)                    Henderson Global Investors
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4. Full name of shareholder(s) 
(if different from 3.):(iv)
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5. Date of the transaction and date on
which the threshold is crossed or
reached: (v)                                               10 May 2011   
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6. Date on which issuer notified:                          11 May 2011   
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7. Threshold(s) that is/are crossed or
reached:(vi), (vii)                                          Below 5%
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8. Notified details:   
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A: Voting rights attached to shares (viii), (ix)
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Class/type   Situation       Resulting situation after the
of Shares    previous to     triggering transaction
             the
             triggering
             transaction
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if possible  Number  Number  Number    Number              % of  
using the    of      of      of        of voting           voting 
ISIN CODE    Shares  Voting  shares    rights              rights (x)
                     Rights  ----------------------------------------------
                             Direct    Direct Indirect  Direct   Indirect
                                      (xi)    (xii)
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GBP0.01   
             6,369,000 6,369,000              Below 5%           Below 5%
GB00B06Y3F14
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B: Qualifying Financial Instruments
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Resulting situation after the triggering transaction  
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Type of financial   Expiration    Exercise/     Number of voting       % of
Instrument          date (xiii)   Conversion    rights that may      voting
                                  Period (xiv)  be acquired if       rights
                                                the instrument
                                                is exercised/
                                                converted.
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C: Financial Instruments with similar economic effect to Qualifying
Financial Instruments (xv), (xvi)   
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Resulting situation after the triggering transaction  
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Type of    Exercise  Expiration  Exercise/   Number of voting   % of voting
financial  price     date        Conversion  rights instrument  rights 
Instrument           (xvii)      period      refers to          (xix), (xx)
                                 (xviii)
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                                                              Nominal Delta
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Total (A+B+C)  
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Number of voting rights                Percentage of voting rights
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Below 5%                               Below 5%
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9. Chain of controlled undertakings through which the voting rights and/or
the financial instruments are effectively held, if applicable:(xxi)
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Proxy Voting:
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10. Name of the proxy holder:
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11. Number of voting rights proxy holder will cease
to hold:
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12. Date on which proxy holder will cease to hold
voting rights:
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13. Additional information:      This disclosure is due in part to the
                                 acquisition of Gartmore Investment Limited
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14. Contact name:                Wayne Powell
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15. Contact telephone number:    020 7818 5611
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