Results of Placing

11 October 2012

Amerisur Resources Plc ("Amerisur" or the "Company")

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, SOUTH AFRICA OR ANY JURISDICTION IN WHICH IT WOULD BE UNLAWFUL TO DO SO

Results of Placing

Amerisur Resources Plc (AIM: AMER), is pleased to announce the successful completion of the equity placing (the "Placing") announced yesterday. A total of 70,000,000 new Ordinary Shares (the "Placing Shares") have been placed by RBC Capital Markets, acting as sole bookrunner in relation to the Placing, at a price of 37.5 pence per share (a discount of 1.1 per cent. to the VWAP on 10 October 2012), raising gross proceeds of £26.25 million (approximately US$42 million).

The Placing Shares represent approximately 7.3 per cent. of the Ordinary Shares currently in issue. The Placing Shares will be issued credited as fully paid and will rank pari passu with the existing Ordinary Shares, including the right to receive all dividends and other distributions declared, made or paid on or in respect of such shares after the date of issue of the Placing Shares.

Application has been made for the Placing Shares to be admitted to trading on AIM and dealings and settlement are expected to commence on 16 October 2012. Following the Placing the revised total number of shares in issue is 1,031,633,831.

Definitions in the Company's announcement of 4.35 p.m. on 10 October 2012 shall have the same meaning in this announcement unless the context otherwise requires.

ENQUIRIES

This announcement is not for publication, release or distribution, directly or indirectly, in whole or in part, in or into the United States (including its territories and possessions, any State of the United States and the District of Columbia), Australia, Canada, Japan or South Africa or any jurisdiction into which the same would be unlawful or to US Persons (within the meaning of Regulation S under the Securities Act of 1933, as amended (the "Securities Act").

This announcement is for information purposes only and does not constitute, or form part of, any offer to sell or issue or any solicitation of an offer to purchase or subscribe for Placing Shares or other shares in the capital of the Company in Australia, Canada, Japan or South Africa or in any jurisdiction in which such offer or solicitation is or may be unlawful and should not be relied upon in connection with any decision to acquire the Placing Shares or other securities in the capital of the Company. No public offering of securities of the Company is being made in the United Kingdom or elsewhere.

This announcement is not an offer of securities for sale in or into the Unites States. The Placing Shares have not been and will not be registered under the Securities Act or under the laws of any State of the United States and may not be offered or sold in or into the United States. No public offering of securities was made in the United States. The Placing Shares were offered and sold outside the United States to persons who are not US Persons in reliance of Regulation S under the Securities Act.

RBC Europe Limited (trading as RBC Capital Markets) ("RBC"), which is authorised and regulated by the Financial Services Authority, is acting exclusively for the Company in connection with the secondary placing and no-one else and will not be responsible to anyone other than the Company for providing the protections afforded to clients of RBC nor for providing advice in relation to the secondary placing or any other matter referred to in this Announcement.