Holding(s) in Company

Anglesey Mining plc LSE:AYM 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: 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 (please specify) [ ] 3. Full name of person(s) subject to the notification obligation: Ambrian Capital plc 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): 21 April 2009 6. Date on which issuer notified: 22 April 2009 7. Threshold(s) that is/are crossed or reached: 8% 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: 13,550,000 Number of Voting Rights: 13,550,000 Resulting situation after the triggering transaction Number of Shares - direct: 11,200,000 Number of Voting Rights - direct: 11,200,000 Number of shares - indirect: - Number of Voting Rights - indirect: - Percentage of Voting Rights - direct 7.3% Percentage of Voting Rights - indirect: - B: Financial Instruments: N/A Total (A+B) Number of Voting Rights 11,200,000 Percentage of Voting Rights 7.3% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: N/A 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 About Anglesey Mining Anglesey Mining plc is a UK based company listed on the London Stock Exchange with a 50% interest in a 90 million ton iron ore project in Labrador, Canada, which is under active development towards mining production. The company also holds the Parys Mountain base metals project with a historical resource of 7.7 million tonnes at 9.3% combined copper, lead and zinc in Anglesey, UK. Enquiries: Ian Cuthbertson (44) 1248 361333
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