Blocklisting Interim Review

Name of applicant:

Amerisur Resources plc ("Amerisur")

Name of scheme:

Options under Amerisur's unapproved share option scheme and long term incentive programme

Period of return:

From:

1 December 2013

To:

31 May 2014

Number and class of securities not issued under the scheme from previous return

5,699,800 ordinary shares

Number of securities issued/allotted under the scheme during the period:

Nil

Number and class of securities admitted

During the period and date of admission

Nil

Balance of unallotted securities under the scheme at the end of the period:

5,699,800 ordinary shares

Number and class of securities originally admitted and the date of admission:

5,000,000 ordinary shares (31 May 2011)

5,000,000 ordinary shares (5 December 2012)

Name of contact:

Brian James

Telephone number of contact:

+44 (0)330 333 8275

Billy Clegg / Georgia Mann

Camarco

Tel: +44 (0)203 757 4980

Stephen Foss / Daniel Conti

RBC Capital Markets

Tel +44 (0)207 653 4000

Chris Sim

Investec

Tel +44 (0)207 597 4000