Block Listing Six Monthly Return

Name of applicant:

Amerisur Resources plc ("Amerisur")

Name of scheme:

Options under Amerisur's unapproved share option scheme

Period of return:

From:

1 June 2011

To:

30 November 2011

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

5,000,000 ordinary shares

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

1,250,000 ordinary shares

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

3,750,000 ordinary shares

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

5,000,000 ordinary shares

31 May 2011

Name of contact:

Brian James

Telephone number of contact:

0330 333 8270