For filings with the FCA include the annex

For filings with issuer exclude the annex


TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi


1. Identity of the issuer or the underlying issuer                        Acacia Mining PLC
of existing shares to which voting rights are
attached:ii

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights                                               X

An acquisition or disposal of qualifying financial instruments which may result
in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to
qualifying financial instruments

An event changing the breakdown of voting rights

Other (please
specify):

3. Full name of
person(s) subject to
the                                               BlackRock, Inc.
notification
obligation:iii

4. Full name of
shareholder(s)
 (if different from
3.):iv

5. Date of the
transaction and date
on                                                20th March 2015
which the threshold
is crossed or
reached: v

6. Date on which                                  23rd March 2015
issuer notified:

7. Threshold(s) that          Voting rights attached to shares holding has gone above
is/are crossed or    5%
reached: vi, vii



8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type   Situation previous           Resulting situation after the triggering transaction
of           to the triggering
shares       transaction

             Number          Number       Number   Number of voting      % of  voting rights x
if possible  of              of           of       rights
using        Shares          Voting       shares
the ISIN                     Rights
CODE                                      Direct   Direct xi  Indirect   Direct   Indirect
                                                              xii

GB00B61D2N63 20,288,262      20,288,262   N/A      N/A        20,570,723 N/A      5.02%




B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of        Expiration        Exercise/          Number of voting             % of voting
financial      date xiii         Conversion Period  rights that may be           rights
instrument                       xiv                acquired if the
                                                    instrument is
                                                    exercised/ converted.





C: Financial Instruments with similar economic effect to Qualifying Financial
Instruments xv, xvi

Resulting situation after the triggering transaction

Type of       Exercise price Expiration Exercise/  Number of voting rights   % of voting
financial                    date xvii  Conversion instrument refers to      rights xix, xx
instrument                              period
                                        xviii

                                                                             Nominal Delta
CFD                                                796,613
                                                                             0.19% 0.19%



Total (A+B+C)

Number of voting rights                          Percentage of voting rights

21,367,336                                       5.21%




9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable: xxi




Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease
to hold:

12. Date on which proxy holder will cease to hold
voting rights:



13. Additional information:                BlackRock Regulatory Threshold Reporting Team

14. Contact name:                          Gareth Slade

15. Contact telephone number:              020 7743 2536