A responsible developer and operator of coal assets to provide energy security to support regional growth and create wealth for its shareholders

Glossary


Bituminous coal A black coal that has a high heat value, low moisture content and can be used to generate electricity.
 
Box-cut The initial opening used to access coal seams in an open-cut operation.
 
Clean
(or washed) coal
The coal product that has undergone processing (wet or dry) in a coal preparation plant (“CPP”) in preparation for sale to customers.
 
Clean coal
technologies
Technologies that are being developed to significantly reduce greenhouse gas emissions from coal-fired electricity generation to near-zero levels.Technologies that are being developed to significantly reduce greenhouse gas emissions from coal-fired electricity generation to near-zero levels.
 
Coal blending Coal that is mixed in predetermined and controlled quantities to give a uniform feed or product.
 
Coal block A section of in situ coal that may range in size.
 
Coal handling and
preparation plant,
CHPP or CPP
A plant used to upgrade the quality of coal including crushing, sizing and drying. Usually refers to the reduction of ash forming mineral in coal.
 

Coal reserve

The economically mineable part of the coal resource, as defined in the JORC Code. It includes diluting materials and allowances for losses.
 
Coal resource Coal in the ground with reasonable prospects for eventual economic extraction, as defined in the JORC Code.
 
Coal sizing plant Plant used to size, crush or screen coal to market specifications.
 
Coke Generated from coking coal after being heated at high temperature in an atmosphere substantially devoid of oxygen, passing through a transient plastic stage in which the coal successively softens, swells and re-solidifies into a coherent cellular coke ready for use in the steel making process.
 
Coking coal Coal suitable for coke making.
 
Dyke and sill An intrusion of igneous rock that displaces the coal seam.
 
Energy, steaming or
thermal coal
Coal used to provide heat for steam raising as part of the electricity generation process.
 

Exploration Tenement

A licence granted to allow exploration to be undertaken with the objective of determining the occurrence and extent of a coal resource and to assess the potential for mining.
 
Fault and dyke
structures
Discontinuities in the coal seam that may impact upon the mineability or quality of the surrounding coal.
 
GHG Greenhouse gas.
 
JORC Code 2004 Australasian Code for Reporting Identified Mineral Resources and Ore Reserves. Australian mining exploration and production companies are bound to produce Resource and Reserves Statements using the JORC Code in accordance with the Listing Rules of the Australian Securities Exchange.
 
Low strip-ratio An overburden to coal ratio, measured in bank cubic metres to in-situ tonnes. The lower the ratio generally means a lower cost of extraction.
 
Marketable reserve The beneficiated or otherwise enhanced coal product, as defined in the JORC Code, after accounting for impact of mining, dilution and processing.
 
Methane A gaseous compound of carbon and hydrogen naturally emitted from coal that can be explosive when mixed with air or oxygen between certain limits.
 
Mine plan A two-dimensional representation of the proposed or existing mine workings, usually prepared as part of an economic assessment of the coal reserve (through the JORC process).
 
Open-cut A type of mining where the Overburden is removed to expose coal seams and allow their extraction by surface means.
 
Overburden Top soil/strata overlying the coal seam.
 
PCI Coal (Pulverised
Coal Injection)
Is a coal that is suitable to be pulverised and then injected into the base of the blast furnace in the production of hot metal.
 
Product dilution Non-coal or poorer quality roof or floor coal that is mined and included in the coal product.
 
Recoverable reserve Similar to coal reserve, a term used to describe the amount of coal that can physically be mined from a reserve at an acceptable cost, as defined in the JORC Code.
 
ROM or run-of-mine Raw coal as mined that has not undergone any screening, crushing or beneficiation.
 
Semi-soft coal A type of coking coal that can be blended with a hard coking coal to produce an acceptable hard coke.
 
Sub-bituminous coal Is a coal that has a lower rank, lower heat value and higher moisture content than bituminous coal.
 
Surface mining A generic term used to describe any type of mining where the coal seam is accessed from a surface location, or where machinery and/or persons are not required to work underground.
 
Tuff A type of rock sometimes found above or below the coal seam, often associated with difficult or “heavy” ground conditions.
 
Yield Usually refers to the proportion of saleable coal derived from ROM production following washing or beneficiation.