2015 AnnouncementsInsitu Gasification (ISG)

In simple terms, ISG occurs when coal is heated underground, in-situ (being "on site" or "in position") through a highly controlled process, and transformed from its solid state into a range of valuable gases, collectively known as synthesis gas, or Syngas.  Detailed planning is undertaken to locate and define the parameters of the ISG chamber.  The ISG chamber is formed within the coal itself, with the rock above forming the roof of the ISG chamber.  The ISG process starts by heating the coal underground.  A special tool, called the Ignition Tool, is fed through and to the end of the Injection Well, to provide heat to start the ISG process   and is then retracted and removed from the ISG chamber. Importantly, as the ISG process operates in a highly controlled and constantly monitored environment, it can be stopped quickly and easily at any time by simply shutting off the oxygen supply. ISG is not a new technology or process, and because it has successfully operated in many demonstration sites and commercial operations in several countries over many decades, its benefits are well documented.  ISG has many advantages, including: No coal is transported at the surface, reducing cost, emission control equipment, and costs associated with operating railways, coal shipping and stockpiling; Small surface disturbance The need for above ground plant, production, or refinement facilities, or for solid waste handling and disposal operations is eliminated because ash, char, and other solid residual materials from the gasification process remain underground. Highly efficient gasification process - small physical footprint for very large amounts of energy extraction and produces energy (gas) efficiently relative to other coal extraction and natural gas production techniques. Safe working environment – only small amounts of equipment goes underground, not people and large machines. ISG eliminates much of the energy waste associated with moving waste rock as well as usable product from the ground to the surface. Produces less greenhouse gas than conventional mining. 2 ISG delivers significant benefits to regional areas through economic development and the creation of employment opportunities, many of which are long term and include skill advancement roles. Terms | Privacy Copyright © 2016 Leigh Creek Energy Limited Our Business Overview Board Charter Code of Conduct Share Trading Policy //

Syngas is produced and extracted through wells drilled into the coal seam, by which air or oxygen are injected to heat the coal in-situ
	Appendix 3BBy creating the right process conditions (pressure, temperature and oxygen) in the coal seam, a series of chemical reactions occurs, which results in gasification of the solid coal. The high-pressure natural environment in deep coal seams (pressure increases with depth) is beneficial to the gasification process, resulting in more thorough and efficient conversion of coal into Syngas that is produced to the surface.    726KB
Oxygen or air is then injected from surface facilities through the Injection Well into the ISG chamber to commence the coal gasification process.  As the solid coal changes to its gaseous form, a chamber bounded by coal forms.  That is, not all of the coal is gasified.  The outer boundaries of the chamber remain to hold the roof rock above.  Controlling the rate of gasification in the process ensures that the chamber’s integrity is not compromised.	08 December 2015 - 9:20AMAs the coal is heated a chemical reaction (gasification) occurs inside the chamber which converts the solid coal into gas.  Put simply, the atoms in the coal, moisture present and oxygen supplied separate under high temperature and then recombine to form the different gases within Syngas.  Once heat and oxygen are applied to the coal, Syngas is produced.
Due to the differences in pressure in the ISG chamber and the Production Well, Syngas flows easily from the ISG chamber into the Production Well, and then to the surface, where it is cleaned and separated for gas distribution ahead of power generation or fertiliser manufacture.	Initial JORC Resource - Leigh Creek Energy Project 10MBAdvantages of ISG
Low capital and operating costs	19 November 2015 - 11:37AMNo surface gasification facilities are needed, hence, capital costs are substantially reduced;
The cost of producing ISG gas is lower than surface coal gasification and other non-conventional gas developments.	Results of Meeting 300KBExtracting energy from coal too deep or uneconomic to mine.
Above ground facilities can be easily sited away from sensitive areas without impacting access to targeted coal reserves.	19 November 2015 - 9:12AM
	Investor PresentationISG can be conducted at depths well below fresh water, and in saline water. 3.5MB
Has potential for geologic CO	19 November 2015 - 8:56AM storage (known as carbon sequestration).
	Chairman's Address to Shareholders 491KB
	04 November 2015 - 10:44AM
	Lapse of Options 450KB
	03 November 2015 - 9:11AM Overview
	Sign in Significant Additional Historic Drill Data Located| 838KB
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	Final Director's Interest Notice 252KB
	22 October 2015 - 5:43PM
Gas Industry	Leigh Creek Energy Project Appendix 3B 698KBInsitu Gasification
Company Charter & Policies	22 October 2015 - 11:25AM
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	Director Resignation 114KB
	30 September 2015 - 1:42PM
	Appendix 4G and Corporate Governance Statement 236KB
	30 September 2015 - 1:35PM
	Annual Report to Shareholders 4.8MB
	25 September 2015 - 10:34AM
	Leigh Creek Energy signs Heads of Agreement 153KB
	22 September 2015 - 3:11PM
	Initial Director's Interest Notice 78KB
	21 September 2015 - 2:54PM
	Appointment of Non-Executive Director 115KB
	21 September 2015 - 8:54AM
	Investor Presentation 3.5MB
	16 September 2015 - 4:40PM
	General Manager Technical Appointed 338KB
	16 September 2015 - 11:19AM
	Company Secretary Appointment/Resignation 319KB
	11 September 2015 - 11:33AM
	Details of Change to Company Address 452KB
	03 September 2015 - 3:58PM
	Audited Financial Accounts 2015 839KB
	03 September 2015 - 9:50AM
	Change of Company Name to Leigh Creek Energy Limited 463KB
	07 August 2015 - 9:26PM
	Marathon signs Heads of Agreement 136KB
	14 July 2015 - 9:59PM
	Investor Presentation 1.4MB
	03 July 2015 - 10:04AM
	Marathon Updates Market on Relisting 359KB
	29 June 2015 - 3:06PM
	Marathon completes ArpTriEnergy Acquisition 126KB
	29 May 2015 - 9:49AM
	Board changes and new direction for Marathon 162KB