Approximately 180 km north of San Luis Potosi City by car on highway 57.

The production decision was not based on a feasibility study of mineral reserves demonstrating economic and technical viability. Accordingly, there is increased uncertainty and economic and technical risks of failure associated with this production decision. Production and economic variables may vary considerably, due to the absence of a complete and detailed site analysis according to and in compliance with National Instrument 43-101. The risks associated with this decision are set forth in the "Risk Factors" section of the Company's most recent Annual Information Form, filed on SEDAR.