Glossary of terms
ABET | Adult Basic Education and Training |
AISC | All-in Sustaining Costs. AISC comprises On-Site Mining Costs (on a sales basis); On-Site General & Administrative costs; Royalties & Production Taxes; Realised Gains/Losses on Hedges due to operating costs; Community Costs related to current operations; Permitting Costs related to current operations; 3rd party smelting, refining and transport costs; Non-Cash Remuneration (Site-Based); Stock-piles/product inventory write down; Operational Stripping Costs; By-Product Credits; Corporate General & Administrative costs (including share-based remuneration); Reclamation & remediation – accretion & amortisation (operating sites); Exploration and study costs (sustaining); and Capital exploration (sustaining) |
AIC | All-in Costs. AIC is AISC plus Community Costs not related to current operations; Community Costs not related to current operations; Reclamation and remediation costs not related to current operations; Exploration and study costs (non-sustaining); Capital exploration (non-sustaining); Capitalised stripping & underground mine development (non-sustaining); and Capital expenditure (non-sustaining) |
AS/NZ 4801 | Australian occupational health and safety management standards |
Backfill | Material generally sourced from processing plant mine residues and utilised for the filling of mined voids, to ensure long-term stability of excavations and minimise the effects of seismic activity |
BEE | Black Economic Empowerment. BEE seeks to ensure that black persons within South Africagain a significant degree of control in the economy through the possession of equity stakesand the holding of management positions within an institution |
Blasthole | The hole into which a blasting charge is inserted in order to blast loose a quantity of rock |
Borehole or drill hole | Hole bored or drilled in rock, usually to obtain representative samples (see diamond drill) |
Box-hole | A cross raise, normally from the access cross-cut to the reef horizon, for the purpose of drawing broken rock and ore from the reef horizon into a conveyance in the cross-cut |
Bulk mining | Any large-scale, mechanised method of mining involving many thousands of tonnes of ore being blasted or caved and transported to a processing plant |
BVQI | Bureau Veritas Qualite International is a leading global and independent certification body that audits and certifies whether company systems meet the requirements of ISO standards |
Carbon-in-leach (“CIL”) | The recovery process in which gold is leached from gold ore pulp by cyanide and simultaneously adsorbed onto activated carbon granules in the same vessel. The loaded carbon is then separated from the pulp for subsequent gold removal by elution. The process is typically employed where there is a naturally occurring gold adsorbent in the ore |
Capital expenditure (or capex) |
Specific project or ongoing expenditure for replacement or additional equipment, materials orinfrastructure |
Carbon-in-pulp (“CIP”) | The recovery process in which gold is first leached from gold ore pulp by cyanide and thenadsorbed onto activated carbon granules in separate vessels. The loaded carbon is thenseparated from the pulp for subsequent gold removal by elution |
Channel | Historic water course into which sediments consisting of gravel and sand are/have beendeposited |
Collective Bargaining Agreement | Collective Bargaining Agreement means a written agreement concerning terms and conditions of employment or any other matter of mutual interest concluded by a trade union(s) and the Company |
Comminution | The term used to describe the process by which ore is reduced in size in order to liberate the desired mineral from the gangue material in preparation for further processing |
Co-morbidity | Medical term for diseases that commonly co-exist, which increase the risk of morbidity |
Concentrate | A metal-rich product resulting from a mineral enrichment process such as gravity concentration or flotation, in which most of the desired mineral has been separated from the waste material in the ore |
Conglomerate | Sedimentary rocks comprising eroded subangular to rounded pebbles within a finer-grained matrix |
Cross-cut | A horizontal underground drive developed perpendicular to the strike direction of the stratigraphy and reef |
Cut-off grade | The lowest grade of mineralised ore, which determines whether or not it is economic to mine and send to the processing plant |
Decline | An excavation from surface or subsurface, in the form of a tunnel, which is developed downwards |
Depletion | The decrease in quantity of ore, in a deposit or property resulting from extraction or mining |
Development | Is any tunnelling operation that is developed for either exploration, exploitation or both |
Diamond drill | A rotary type of rock drill that cuts a core of rock by diamond bits and is recovered in long cylindrical sections |
Dilution | Waste or material below the cut-off grade that contaminates the ore during the course of mining operations and thereby reduces the average grade mined |
Dip | Angle of inclination of a geological feature/rock from the horizontal |
Dyke | Tabular, vertical or near vertical body of igneous rock formed by the intrusion of magma generally into planar structural zones of weakness |
Elution | The chemical process of desorbing gold from activated carbon |
Face | The end of a development end, drift, cross-cut or stope at which work is taking place |
Facies | The characteristics of a rock unit defined by its composition, lithology, physical properties and geochemical parameters, usually reflecting the conditions of its origin |
Fatality rate | Number of deaths normally expressed as a ratio per million man-hours worked |
Fault | The surface or plane of a fracture along which movement has occurred |
Feasibility study | A comprehensive design and costing study of the selected option for the development of a mineral project in which appropriate assessments have been made of realistically assumed geological, mining, metallurgical, economic, marketing, legal, environmental, social, governmental, engineering, operational and all other modifying factors, which are considered in sufficient detail to demonstrate at the time of reporting that extraction is reasonably justified (economically mineable) and the factors reasonably serve as the basis for a final decision by a proponent or financial institution to proceed with, or finance, the development of the project. The overall confidence of the study should be stated |
Filtration | Process of separating usually valuable solid material from a liquid |
Flotation | The process by which the surface chemistry of the desired mineral particles is chemically modified such that they preferentially attach themselves to bubbles and float to the surface of the pulp in specially designed vessels. The gangue or waste minerals are chemically depressed and do not float, thus allowing the valuable minerals to be concentrated and separated from the undesired material |
Footwall | The underlying side of an ore body or stope |
Free cash flow margin | The free cash flow (“FCF”) margin is revenue less cash outflow divided by revenue expressed as a percentage |
Gold equivalent | A quantity of metal (such as copper) converted to an amount of gold in ounces, based on accepted gold and other metal prices, ie the accepted total value of the metal based on its weight and value thereof divided by the accepted value of one troy ounce of gold |
Grade | The quantity of gold or other metal contained within a unit weight of one metric tonne, generally expressed in grams per metric tonne (“g/t”) or percent metal per metric tonne (%) |
Hanging wall | The overlying side of an ore body or slope |
Haulage | A horizontal underground excavation which is used to transport mined ore |
Head grade | The grade of the material delivered to the processing facility (such as heap leach pad, mill, etc). The Mineral Reserve declaration is for material as delivered to the processing facility |
Hedging | Taking a buy or sell position in futures market opposite to a position held in the cash/spot market to minimise the risk of financial loss from an adverse price change |
Hydrothermal | Process of injection of hot, aqueous, generally mineral-rich solutions into existing rocks or geological features |
ICVCT | Informed Consented Voluntary Counselling and Testing |
Indicated Mineral Resources | That part of a Mineral Resource for which tonnage, densities, shape, physical characteristics, grade and mineral content can be estimated with a reasonable level of confidence. It is based on exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes. The locations are too widely or inappropriately spaced to confirm geological and/or grade continuity but are spaced closely enough for continuity to be assumed |
Inferred Mineral Resource | That part of a Mineral Resource for which tonnage, grade and mineral content can be estimated with a low level of confidence. It is inferred from geological evidence and assumed but not verified geological and/or grade continuity. It is based on information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drillholes which may be limited or of uncertain quality and reliability |
ISO 14000 | International standards for organisations to implement sound environmental management systems |
Lock-up gold | Gold trapped as a temporary inventory within a processing plant, or sections thereof, typically milling circuits |
LTIFR | Lost-Time Injury Frequency Rate, expressed in million man-hours worked |
Measured Mineral Resource | That part of a Mineral Resource for which tonnage, densities, shape, physical characteristics, grade and mineral content can be estimated with a high level of confidence. It is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes. The locations are spaced closely enough to confirm geological and grade continuity |
Milling | A general term used to describe the process in which the ore is crushed and ground and subjected to physical or chemical treatment to extract the valuable metals to a concentrate or finished product |
Mine Health and Safety Act (“MHSA”) | The South African Mine Health and Safety Act, No 29 of 1996 |
Mineralised | Rock in which minerals have been introduced |
Mineral Reserve | A ‘Mineral Reserve’ is the economically mineable material derived from a Measured or Indicated Mineral Resource or both. It includes diluting and contaminating materials and allows for losses that are expected to occur when the material is mined. Appropriate assessments to a minimum of a Pre-Feasibility Study for a project and a Life-of-Mine Plan for an operation must have been completed, including consideration of, and modification by, realistically assumed mining, metallurgical, economic, marketing, legal, environmental, social and governmental factors (the modifying factors). Such modifying factors must be disclosed |
Mineral Resource | A ‘Mineral Resource’ is a concentration or occurrence of material of economic interest in or on the earth’s crust in such form, quality and quantity that there are reasonable and realistic prospects for eventual economic extraction. The location, quantity, grade, continuity and other geological characteristics of a Mineral Resource are known, or estimated from specific geological evidence, sampling and knowledge interpreted from an appropriately constrained and portrayed geological model. Mineral Resources are subdivided, and must be so reported, in order of increasing confidence in respect of geoscientific evidence, into Inferred, Indicated or Measured categoriesGold |
Net cash flow | Cash flow from operating activities less net capital expenditure and environmental payments |
Normal fault | Fault in which the hanging wall moves downward relative to the footwall, under extensional tectonic conditions |
Normalised earnings | Net earnings excluding gains or losses on foreign exchange, financial instruments and non-recurring items after royalties and taxation |
Nugget effect | A measure of the randomness of the grade distribution within a mineralised zone |
NUM | National Union of Mine Workers |
OHSAS | Management system standards, developed in order to facilitate the integration of quality and occupational health and safety management systems by organisations |
Payshoot | Linear to sublinear zone within a reef for which gold grades or accumulations are predominantly above the cut-off grade |
Pillar | Rock left behind to help support the excavations in an underground mine |
Probable Mineral Reserve | The economically mineable material derived from a Measured and/or Indicated Mineral Resource. It is estimated with a lower level of confidence than a Proved Mineral Reserve. It is inclusive of diluting materials and allows for losses that may occur when the material is mined. Appropriate assessments, to a minimum of a pre-feasibility study for a project, have been carried out, including consideration of and modification by realistically assumed mining, metallurgical, economic, marketing, legal, environmental, social and governmental factors. These assessments demonstrate at the time of reporting that extraction is reasonably justified |
Project capital | Capital expenditure that is associated with specific projects |
Proved Mineral Reserve | The economically mineable material derived from a Measured Mineral Resource. It is estimated with a high level of confidence. It is inclusive of diluting materials and allows for losses that may occur when the material is mined. Appropriate assessments, to a minimum of a pre-feasibility study for a project, have been carried out, including consideration of and modification by realistically assumed mining, metallurgical, economic, marketing, legal, environmental, social and governmental factors. These assessments demonstrate at the time of reporting that extraction is reasonably justified |
Reef | A general term for metalliferous mineral deposit (gold) within a geological zone or unit |
SADC | Southern African Development Community |
SAMREC Code | The South African code for the reporting of exploration results, Mineral Resources and Mineral Reserves (the SAMREC Code) 2007 Edition |
Seismic | Earthquake or earth vibration including those artificially induced by mining operations |
Shaft | An opening cut downwards from the surface for transporting personnel, equipment, supplies, ore and waste |
Shear | A deformation resulting from stresses that cause contiguous parts of a body of rock to slide relative to each other in a direction parallel to their plane of contact |
Stope | The working area from which ore is extracted in an underground mine |
Stripping | The process of removing overburden or waste rock to expose ore |
Stripping ratio | The ratio of waste tonnes to ore tonnes mined, calculated as total tonnes mined less ore tonnes mined, divided by ore tonnes mined |
Stratigraphy | The science of rock strata, including arrangement according to geographical location lithological composition, geophysical and geochemical and chronological order of sequence |
Strike | Direction or trend of geological structures such as bedding or fault planes defined by the intersection with the horizontal plane and is always perpendicular to the dip direction |
Subvertical shaft | An opening cut below the surface downwards from an established surface shaftGold |
Surface sources | Ore sources, usually dumps, tailings dams and stockpiles, located at the surface |
TEBA | The Employment Bureau of Africa |
Tertiary shaft | An opening cut below the surface downwards from an established subvertical shaft |
The Base Case | The Base Case is established as part of the financial models |
Trade union | An association of employees whose principal purpose is to regulate relations between employees and the Company, which has been registered; whose officials have been elected to represent the interests of employees within the workplace; and which is recognised for collective bargaining by the Company |
Vamping | Is the final clean-up of track ballast and/or accumulations in gullies and along transportation routes |
Abbreviations and units | |
ABET | Adult Basic Education and Training |
ADS | American Depository Shares |
AIDS | Acquired Immune Deficiency Syndrome |
ARC | Assessment and Rehabilitation Centres |
ART | Antiretroviral therapy |
CBO | Community-based organisation |
CIL | Carbon-in-leach |
CIP | Carbon-in-pulp |
CIS | Carbon-in-solution |
DCF | Discounted cash flow |
ETF | Exchange-traded fund |
GFHS | Gold Fields Health Service |
GFLC | Gold Fields La Cima |
GRI | Global Reporting Initiative |
HBC | Home-based care |
HDSA | Historically disadvantaged South African |
HIV | Human immunodeficiency virus |
LoM plan | Life-of-mine plan |
LTIFR | Lost-Time Injury Frequency Rate, quoted in million man-hours |
MCF | Mine Call Factor |
NGO | Non-governmental organisation |
NUM | National Union of Mineworkers |
NYSE | New York Stock Exchange |
OHC | Occupational Health Centre |
OT | Occupational therapy |
PHC | Primary health clinic |
PPI | Producer price index |
SAMREC | South African code for Reporting of Exploration Results, Mineral Resources and MineralReserves |
SEC | United States Securities Exchange Commission |
STI | Sexually transmitted infection |
TB | Tuberculosis |
TEC | Total employees costed |
UASA | United Association of South Africa (a labour organisation) |
VCT | Voluntary counselling and testing (for HIV) |
cm | centimetre |
cm.g/t | gold accumulation |
g | gram |
g/t | grams per metric tonne – gold grade |
ha | hectare |
kg | kilogram |
km | kilometre |
koz | thousand ounces |
kt | thousand metric tonnes |
ktpa | thousand metric tonnes per annum |
ktpm | thousand tonnes per month |
m2 | square metre |
Moz | million ounces |
oz | fine troy ounce equalling 31.10348 grams |
R | South African Rand |
R/kg | South African Rand per kilogram |
Rm | million South African Rand |
R/t | South African Rand per metric tonne |
t | metric tonne |
US$ | United States Dollar |
US$m | million United States Dollars |
US$/oz | United States Dollar per ounce |
SUSTAINABLE DEVELOPMENT
- United Nations Global Compact – is a United Nations initiative to encourage businesses worldwide to adopt sustainable and socially responsible policies, and to report on their implementation. The Global Compact is a
principle-based framework for businesses, stating 10 principles in the areas of human rights, labour, the environment and anti-corruption. Under the Global Compact, companies are brought together with UN agencies, labour groups and civil society.
- Global Reporting Initiative (“GRI”) – produces one of the world’s most prevalent standards for sustainability reporting. Sustainability reporting is a form of value reporting where an organisation publicly communicates its economic, environmental and social performance.
- ICMM (International Council on Mining and Metals) – CEO-led organisation of mining companies that seeks to continually entrench best practice with regard to sustainable development and to provide a platform for member companies to share experiences.
HEALTH, SAFETY AND WELLBEING
- Total Recordable Injury Frequency Rate (“TRIFR”) Group safety metric was introduced in 2013. TRIFR = (Fatalities + Lost Time Injuries + Restricted Work Injuries + Medically Treated Injuries) x 1,000,000/number of man-hours worked.
- A Lost Time Injury (“LTI”) is a work-related injury resulting in the employee or contractor being unable to attend work for a period of one or more days after the day of the injury. The employee or contractor is unable to perform any of his/her duties.
- A Restricted Work Injury (“RWI”) is a work-related injury sustained by an employee or contractor which results in the employee or contractor being unable to perform one or more of their routine functions for a full working day, from the day after the injury occurred. The employee or contractor can still perform some of his/her duties.
- A Medically Treated Injury (“MTI”) is a work-related injury sustained by an employee or contractor which does not incapacitate that employee and who, after having received medical treatment, is deemed fit to immediately resume his/her normal duties on the next calendar day, immediately following the treatment or re-treatment.
- OHSAS 18001 – An international voluntary standard against which organisations are externally assessed on their Health and Safety performance. As with other standards, it is based around the setting of objectives and targets and the monitoring of the businesses’ performance against these.
- Noise Induced Hearing Loss (“NIHL”) – is an increasingly prevalent disorder that results from exposure to high-intensity sound, especially over a long period of time.
- Silicosis – is a form of occupational lung disease caused by inhalation of crystalline silica dust, and is marked by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs.
- Chronic Obstructive Airway Disease (“COAD”) – refers to chronic bronchitis and emphysema, a pair of commonly
co-existing diseases of the lungs in which the airways become narrowed.
- Highly active antiretroviral therapy (“HAART”) – Treatment of people infected with HIV, to suppress the growth of HIV, the retrovirus responsible for AIDS. The standard treatment consists of a combination of at least three drugs (often called HAART).
ENVIRONMENT
- ISO 14001 – an international voluntary standard for environmental management systems. This is one standard in the ISO 14000 series of international standards on environmental management.
- Environmental incidences – these are incidences that are classified in accordance with a system designed by Gold Fields (based on the GRI definition) that classifies the incident based on its severity.
The incidences are classified as follows:
- Not classified – Incidents below the level 1 to 5 classification threshold and with no environmental impact: No classification or administrative action required, but it can be logged.
- Level 1 environmental incident – Incidents that involve minor non-conformances that result in minimal or no environmental impact.
- Level 2 environmental incident – Incident that involves minor non-conformances that result in short-term, limited and non-ongoing adverse environmental impacts.
- Level 3 environmental incident – Incidents that result in limited non-conformances or non-compliances. These non-compliances are those that result in ongoing (as per the timeframes defined in Gold Fields Guidelines),
but limited environmental impact.
- Level 4 environmental incident – Incidents resulting in significant non-conformances or non-compliances with significant short-term or medium-term environmental impact. Such events are likely to be operation threatening in isolation and cumulatively (i.e. if the incidents are repeated) is very likely to threaten a licence to operate or social licence to operate. In addition, such incidents also have the potential to cause reputational damage.
- Level 5 environmental incident – Incidents that result in major non-conformances or non-compliances. These non-compliances or non-conformances are those that result in either catastrophic short-term impact or medium to long-term environmental impact. Company or operation threatening implications and potential major damage to the Company’s reputation are almost inevitable.
- Water withdrawal – the sum of all water drawn into the boundaries of the reporting organisation for any use over the course of the reporting period.
- Water discharge – the sum of water discharged over the course of the reporting period to the receiving environment.
- Acid mine drainage (“AMD”) or acid rock drainage (ARD), collectively called acid drainage (AD) is formed when certain sulphide minerals in rocks are exposed to oxidising conditions, such as the presence of oxygen, combined with water. AD can occur under natural conditions or as a result of the sulphide minerals that are encountered and exposed to oxidation during mining or during storage in waste rock dumps, ore stockpiles or tailings dams. The acidic water that forms, usually contains iron and other metals if they are contained in the host rock.
- Basel Convention – is an international treaty that was designed to reduce the movements of hazardous waste between nations, and specifically to prevent transfer of hazardous waste from developed to less developed countries ( “LDCs”).
SUPPLY CHAIN MANAGEMENT AND MATERIAL STEWARDSHIP
- Not classified – Incidents below the level 1 to 5 classification threshold and with no environmental impact: No classification or administrative action required, but it can be logged.
- Level 1 environmental incident – Incidents that involve minor non-conformances that result in minimal or no environmental impact.
- Level 2 environmental incident – Incident that involves minor non-conformances that result in short-term, limited and non-ongoing adverse environmental impacts.
- Level 3 environmental incident – Incidents that result in limited non-conformances or non-compliances. These non-compliances are those that result in ongoing (as per the timeframes defined in Gold Fields Guidelines), but limited environmental impact.
- Level 4 environmental incident – Incidents resulting in significant non-conformances or non-compliances with significant short-term or medium-term environmental impact. Such events are likely to be operation threatening in isolation and cumulatively (i.e. if the incidents are repeated) is very likely to threaten a licence to operate or social licence to operate. In addition, such incidents also have the potential to cause reputational damage.
- Level 5 environmental incident – Incidents that result in major non-conformances or non-compliances. These non-compliances or non-conformances are those that result in either catastrophic short-term impact or medium to long-term environmental impact. Company or operation threatening implications and potential major damage to the Company’s reputation are almost inevitable.
ICMC (International Cyanide Management Code) – is a voluntary industry programme for the manufacture, transport and use of cyanide in gold production. The Code is an industry voluntary programme for gold mining companies. It focuses exclusively on the safe management of cyanide and cyanidation mill tailings and leach solutions. Companies that adopt the Code must have their mining operations that use cyanide to recover gold audited by an independent third party to determine the status ofCode implementation.
SOCIAL RESPONSIBILITIES
SED (Socio economic spend) – Payments made to communities and community investments that are not inherent to the functioning of the operation. This may include payments related to infrastructure, health and wellbeing, education and training, local environment, scholarships and donations. This definition is aligned to the World Gold Council (“WGC”) definition.
Local Economic Development (“LED”) – refers to initiatives and monies disbursed to uplift socio-economic conditions in the communities in which we operate.
AA1000SES – is a generally applicable, open-source framework for improving the quality of the design, implementation, assessment, communication and assurance of stakeholder engagement.
OUR PEOPLE
HDSA – Historically disadvantaged South Africans.
ENERGY AND CARBON MANAGEMENT
Greenhouse gas emission (“GHG emissions”) – Gases which absorb outgoing terrestrial radiation, such as water vapour, methane, CFCs and carbon dioxide.
Scope 1 carbon dioxide (“CO2”) emissions – are those directly occurring from sources that are owned or controlled by the institution, including:
On-campus stationary combustion of fossil fuels; mobile combustion of fossil fuels by institution-owned/controlled vehicles; and fugitive emissions. Fugitive emissions result from intentional or unintentional releases of GHGs.
Scope 2 CO2 emissions – are indirect emissions generated in the production of electricity consumed by the institution.
Scope 3 CO2 emissions – are all the other indirect emissions that are a consequence of the activities of the institution, but occur from sources not owned or controlled by the institution such as commuting, air travel, waste disposal; embodied emissions from extraction, production and transportation of purchased goods; outsourced activities; contractor-owned vehicles; and line loss from electricity transmission and distribution.
Equivalent carbon dioxide (“CO2-e”) – ameasures for describing how much global warming a given type and amount of greenhouse gas may cause, using the functionally equivalent amount or concentration of carbon dioxide (“CO2”) as the reference.