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 Dec 2017

To:

31 May 2018

Balance of unallotted securities under scheme(s) from previous return:

1,911,735 ordinary shares

Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

Nil

Less: Number of securities issued/allotted under scheme(s) during period

Nil

Equals: Balance under scheme(s) not yet issued/allotted at end of period:

1,911,735 ordinary shares

Number and class of securities originally listed and the date of admission

5,000,000 Ordinary Shares on 31 May 2011

Number and class of securities issued in second listing and the date of admission

5,000,000 Ordinary Shares on 5 December 2012

Total number of securities in issue at the end of the period

1,213,205,768

Name of contact:

Brian James

Telephone number of contact:

+44 (0)330 333 8275

Billy Clegg/Georgia Edmonds

Tel: +44 (0)203 757 4980

Camarco

Callum Stewart/Ashton Clanfield

Stifel Nicolaus Europe Limited

Tel: +44 (0)20 7710 7600

Chris Sim/George Price

Tel: +44 (0)207 597 4000

Investec