CONSENT OF EXPERT
In connection with the Annual Report on Form 40-F of Yamana Gold Inc. (“Yamana”) for the year
ended December 31, 2009 (the “Form 40-F”), I, Rogerio Moreno, MAusIMM, Principal Geologist of MCB
Servicos e Mineracao Ltda., hereby consent to the use of my name in connection with the reference to the
mineral resource estimates for the Fazenda Brasileiro Project, the Jacobina Project, the Sao Vicente Project and
the Ernesto/Pau a Pique Project as at December 31, 2009 (the “Estimates”) and to the inclusion of references to
and summaries of the Estimates (collectively, the “Incorporated Information”) in the Annual Information
Form filed an exhibit to the Form 40-F.
I do also hereby consent to the use of my name and the incorporation by reference of the Incorporated
Information in Yamana’s Registration Statement on Form F-10 (File No. 333-158343) and Registration
Statements on Form S-8 (File Nos. 333-148048; 333-145300; 333-159047).
MCB SERVICOS E MINERACAO LTDA.
/s/ Rogerio Moreno
Title: Principal Geologist — Pgeo.
Date: March 31, 2010