Ag

Silver

Adjusted EBITDA

Adjusted EBITDA is calculated as profit from continuing operations before net finance income/(cost), foreign exchange loss and income tax plus depreciation and exploration expenses other than personnel and other exploration related fixed expenses.

Au

Gold

Attributable after tax profit

Profit for the year before dividends attributable to the equity shareholders of Hochschild Mining PLC from continuing operations before exceptional items and after minority interest.

Average head grade

Average ore grade fed into the mill

Board

The Board of Directors of the Company

CAD$

Canadian dollar

Company

Hochschild Mining PLC

CSR

Corporate social responsibility

Cu

Copper

Directors

The Directors of the Company

DNV

Det Norske Veritas is an independent foundation with the purpose of safeguarding life, property and the environment.

Dore

Dore bullion is an impure alloy of gold and silver and is generally the final product of mining and processing; the dore bullion will be transported to be refined to high purity metal.

Dollar or $

United States dollars

Effective Tax Rate

Income tax expense as a percentage of profit from continuing operations before income tax.

EPS

The per-share (using the weighted average number of shares outstanding for the period) profit available to equity shareholders of the Company from continuing operations after exceptional items.

eq

equivalent

Exceptional item

Events that are significant and which, due to their nature or the expected infrequency of the events giving rise to them, need to be disclosed separately.

g/t

Grammes per tonne

GAAP

Generally Accepted Accounting Principles

Group

Hochschild Mining PLC and subsidiary undertakings

IAS

International Accounting Standards

IASB

International Accounting Standards Board

IFRS

International Financial Reporting Standards

JV

Joint venture

koz

Thousand ounces

kt

Thousand tonnes

ktpa

Thousand tonnes per annum

Listing or IPO (Initial Public Offering) or Global Offer

The listing of the Company’s Ordinary Shares on the London Stock Exchange on 8 November 2006.

LTI

Lost Time Injury, meaning an occupational injury or illness that results in days away from work.

LTIFR

Lost Time Injury Frequency Rate = LTI x 1,000,000/hours worked

moz

Million ounces

Ordinary shares

Ordinary shares of 1 pence each in the Company

Pb

Lead

Spot or spot price

The purchase price of a commodity at the current price, normally this is at a discount to the long-term contract price.

t

tonne

tpa

tonnes per annum

tpd

tonnes per day

Zn

Zinc