8 May 2017

Amerisur Resources Plc

Appointment of Senior Independent Non-executive Director

Amerisur Resources Plc ("Amerisur" or the "Company"), the oil and gas producer and explorer focused on South America, is pleased to announce the appointment of Alex Snow to the Board as Senior Independent Non-executive Director effective from 10 May 2017.

The appointment follows an objective, thorough and rigorous process overseen by Chris Jenkins, independent non-executive Director and member of the Nomination Committee.  In line with corporate governance best practice, Preng & Associates, a leading executive search firm dedicated to the energy industry, managed the search process.

Alex Snow has had a successful career in the City and has most recently been CEO of Lansdowne Partners LLP, the leading institutional investor. He was founder and CEO of Evolution Group plc the investment bank created in 2001 and subsequently sold in 2012 to Investec for £230 million.  Alex became Chairman of the investment banking division and member of the Board at Investec Bank PLC before leaving in 2013 to become CEO of Lansdowne Partners LLP.  Alex stepped down from Lansdowne Partners on 31 December 2016.

It is intended that Alex Snow will join the Remuneration and Nomination Committees.

Chris Jenkins, independent Non-executive Director and member of the Nomination Committee who oversaw the search process, said:

"Following extensive shareholder consultation, with the support of Preng we have run an objective, thorough and rigorous process in line with best practice corporate governance and recruitment procedures to find Alex Snow.  Alex has considerable City expertise, most recently as CEO of a leading institutional investor, to complement the recent appointment of Dana Coffield, who has significant oil industry experience globally and in Colombia specifically."

Giles Clarke, Chairman of Amerisur, commented:

"I take pleasure in welcoming Alex Snow to the Board of Amerisur as Senior Independent Non-executive Director.  His City experience, strength of character and willingness to provide challenge will add significantly to the Board of your company.  I would like to thank Stephen Foss for his contribution as Senior Independent Director where he supervised an enhancement of corporate governance and shareholder engagement and the Amerisur Board looks forward to continuing to work with him in his role as independent non-executive Director."

Ends

Enquiries:

In relation to the appointment to the board, there is no further information required to be disclosed pursuant to paragraph (g) of Schedule 2 of the AIM Rules for Companies.

Notes to editors

Amerisur Resources is an independent full-cycle oil and gas company focused on South America, with assets in Colombia and Paraguay and production from the Platanillo field in southern Colombia. In 2016 Amerisur successfully built and is 100% owner of the strategic OBA oil transfer line into Ecuador.

In Colombia, the Company is operator and has a 100% working interest in the Platanillo block which includes the Platanillo field, which is currently producing circa 5,200 BOPD.  The Company has a strong position in the Putumayo basin and has a cluster of near term activity assets around the OBA export line.  It has a diverse portfolio of longer term exploration assets.

This announcement contains inside information as defined in EU Regulation No. 596/2014 and is in accordance with the Company's obligations under Article 17 of that Regulation.

www.amerisurresources.com