Block Listing Six Monthly Return

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 2012

To:

31 May 2013

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

1,360,000 ordinary shares

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

85,000 ordinary shares

Number and class of securities admitted

During the period and date of admission

5,000,000 ordinary shares

5 December 2012

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

6,275,000 ordinary shares

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

5,000,000 ordinary shares

31 May 2011