Holding(s) in Company

Anglesey Mining plc LSE:AYM

20 September 2010

Disclosure of Holdings

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:

Morgan Stanley

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

5. Date of the transaction (and date on which the threshold is crossed or
reached if different): 15 September 2010

6. Date on which issuer notified: 17 September 2010

7. Threshold(s) that is/are crossed or reached: 4%, 5%, 6%

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: 10,652,000

Number of Voting Rights: 10,652,000

Resulting situation after the triggering transaction

Number of Shares - direct: 5,565,900

Number of Voting Rights - direct: 5,565,900

Number of shares - indirect: 0

Number of Voting Rights - indirect: 0

Percentage of Voting Rights - direct: 3.64%

Percentage of Voting Rights - indirect: 0

B: Financial Instruments: N/A

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

Type of financial instruments:

Exercise price:

Expiration date:

Exercise/conversion period:

Number of voting rights instrument refers to:

Percentage of Voting Rights:

Delta:

Total (A+B+C)

Number of Voting Rights 5,565,900

Percentage of Voting Rights 3.64%

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

Morgan Stanley Securities Limited

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