Amerisur Resources Plc announced the appointment of Stephen Foss as a Senior Independent Non-Executive Director with immediate effect. Mr. Foss previously led the Royal Bank of Canada's International Equities business for Europe and Austral-Asia, prior to joining its global investment banking division in February 2011 to concentrate on senior client coverage, Sovereign Wealth Funds and origination in the natural resources sector. Mr. Foss will Chair the Remuneration Committee and sit as a member of the Audit Committee.