Notification of Exploration Event

4 November 2010 

Analyst & Investor Exploration Presentation in London

Hochschild Mining plc is today hosting an exploration presentation in London for investors and analysts, commencing at 9am London time. The presentation will be available for download prior to the event at www.hochschildmining.com under Investors/Presentations.

To join the event via conference call, please see dial in details below:

UK +44 (0) 20 3003 2666

A recording of the conference call will be available for one week following its conclusion, accessible from

the following telephone number:

UK +44 (0) 20 8196 1998

Access code 5193644#

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Enquiries:

Hochschild Mining plc

Isabel Lütgendorf +44 (0)20 7907 2934

Head of Investor Relations

Finsbury

Faeth Birch +44 (0)20 7251 3801

Public Relations

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About Hochschild Mining plc:

Hochschild Mining plc is a leading precious metals company listed on the London Stock Exchange (HOCM.L / HOC LN) with a primary focus on the exploration, mining, processing and sale of silver and gold. Hochschild has over forty years' experience in the mining of precious metal epithermal vein deposits and currently operates four underground epithermal vein mines, three located in southern Peru, one in southern Argentina and one open pit mine in northern Mexico. Hochschild also has numerous long-term prospects throughout the Americas.