acid rock drainage (ARD)

When rock surfaces are exposed to air and rain, a reaction can occur with the elements in the rock which results in a change in the characteristics of the water that drains off. If the rock contains sulphides, oxidation processes can acidify the water. This is known as acid rock drainage (ARD).

biodiversity

Biodiversity is the variety of plants, animals and micro-organisms, their genetic variation and the different ecosystems of which they are part.

carbon dioxide equivalent (CO2e)

Carbon dioxide equivalent is a standard of measurement used to indicate the impact of various greenhouse gas emissions on global warming relative to the same amount of carbon dioxide (CO2).

environmental and social impact assessment (ESIA)

An Environmental and Social Impact Assessment (ESIA) is an assessment of the anticipated impacts of a project on the local environment and community.

footprint

The area covered by OZ Minerals’ operations and activities.

Global Reporting Initiative (GRI)

The Global Reporting Initiative is an international, multi-stakeholder process aimed at producing and disseminating globally applicable sustainability reporting guidelines. These guidelines are for voluntary use by organisations for reporting on the economic, environmental and social dimensions of their activities, products and services. For more information, see www.globalreporting.org

Government of Laos

Government of the Lao People’s Democratic Republic

GPDA

The Greater Project Development Area (GPDA) lies within the Mineral Exploration and Production Area (MEPA) and includes the previously permitted Sepon Project Development Area (SPDA).

greenhouse gases (GHG)

Gases in the earth’s atmosphere that absorb and re-emit infra red radiation, including carbon dioxide (CO2); methane (CH4); nitrous oxide (N2O); hydrofluorocarbons (HFCs); perfluorocarbons (PFCs); and sulphur hexafluoride (SF6).

gross domestic product (GDP)

Total market value of the goods and services produced by a country’s economy during a specific period of time.

gross state product (GSP)

Total market value of the goods and services produced by a state or territory’s economy during a specific period of time.

human rights

Basic standards of treatment to which all people are entitled, regardless of nationality, gender, race, economic status or religion.

ISO14001

ISO14001 is an international standard for environmental management systems.

IUCN Red List

The World Conservation Union (IUCN) Red List provides information about the characteristics, conservation status and distribution of flora and fauna species facing the risk of global extinction.

KPI

Key Performance Indicator

kilolitre (kL)

One kilolitre is equal to one thousand litres.

licence to operate

Securing and maintaining the trust and confidence of a community and regulators in order to set up and conduct business.

Material Safety Data Sheet (MSDS)

Documentation prepared for each of our products identifying the potential safety, health and environmental aspects associated with their use.

megalitre (ML)

One megalitre is equal to one million litres.

Mineral Exploration and Production Agreement (MEPA)

The formal agreement between the Government of Laos and OZ Minerals, regarding development and operation of the Sepon gold and copper mine.

overburden

See waste rock.

petajoule (PJ)

One petajoule is equal to 1015 joules.

precautionary principle

The precautionary principle emerged from Article 15 of the Rio Principles. This principle states that where scientific evidence is uncertain, decision-makers should take action to limit continued environmental damage and should err on the side of caution when evaluating proposals that may have a serious or irreversible impact on the environment.

Sepon Project Development Area (SPDA)

The SPDA lies within the area defined by the Mineral Exploration and Production Agreement (MEPA). The Sepon operation was encompassed within the SPDA prior to expansion into the Greater Project Development Area (GPDA).

stakeholders

Any person, group or interested party that may be impacted by OZ Minerals’ operations, activities or performance.

tailings

Finely ground materials from which the desired mineral values have been largely extracted.

tailings storage facility

Facility designed for the storage of tailings material produced during ore processing.

Total Recordable Injury Frequency Rate (TRIFR)

TRIFR is the total number of recordable injuries per million working hours. ‘Recordable Injuries’ are lost time, restricted work and medical treatment injuries. First aid injuries are not included.

waste rock

Material such as soils, barren or uneconomic mineralised rock that surrounds a mineral orebody and must be removed in order to mine the ore.