Holding(s) in Company

Anglesey Mining plc LSE:AYM

11 June 2012

Holdings in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached: Anglesey Mining plc

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 financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached [ ]

An event changing the breakdown of voting rights [ ]

Other - change in reporting requirements to include qualifying financial
instruments [ ]

3. Full name of person(s) subject to the notification obligation:

John H Burbank III / Passport Capital LLC / Blackwell Partners LLC / Passport
Advisors LP / Passport Holdings LLC / Passport Materials Master Fund LP /
Norges Bank (Central Bank of Norway)

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

Passport Materials Master Fund LP / Blackwell Partners LLC / Norges Bank
(Central Bank of Norway)

5. Date of the transaction (and date on which the threshold is crossed or
reached if different): 7 June 2012

6. Date on which issuer notified: 9 June 2012

7. Threshold(s) that is/are crossed or reached: 5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares: Ordinary 1p GB000320472

Situation previous to the Triggering transaction

Number of Shares: 3,949,800

Number of Voting Rights: 3,949,800

Resulting situation after the triggering transaction

Number of Shares - direct: 3,949,800

Number of Voting Rights - direct: 3,949,800

Number of shares - indirect: 0

Number of Voting Rights - indirect: 0

Percentage of Voting Rights - direct: 2.49%

Percentage of Voting Rights - indirect:

B: Financial Instruments: N/A

C: Financial instruments with similar economic effects to Qualifying financial
instruments

Type of financial instruments: Swap

Exercise price: n/a

Expiration date: 2 May 2013

Exercise/conversion period: n/a

Number of voting rights instrument refers to: 3,500,000

Percentage of Voting Rights: 2.21%

Delta:

Total (A+B+C)

Number of Voting Rights 7,449,800

Percentage of Voting Rights 4.70%

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

John H. Burbank III is the managing member of Passport Capital LLC.

Passport Holdings is the general partner of Passport Advisors LP.

Passport Advisors, LP is the general partner of Passport Materials Master Fund,
LP.

Passport Capital LLC is the managing member of Passport Holdings LLC, and is
the Investment Manager to Blackwell Partners LLC, Norges Bank (Central Bank of
Norway), Passport Special Opportunities Master Fund LP and Passport Materials
Master Fund LP

The position is currently held as follows:

Blackwell Partners LLC (479,800 common shares /0.30%)

Norges Bank (Central Bank of Norway) (3,470,000 common shares /2.19%)

Passport Materials Master Fund LP (3,500,000 swaps/2.21%)

Proxy Voting

10. Name of the proxy holder: N/A

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

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

13. Additional information: None

Enquiries:

Ian Cuthbertson (44) 1248 361333